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Modelling Simulation And Implementation Of A Fault Tolerant Permanent Magnet Ac Motor Drive With Redundancy
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Book Synopsis Modelling, Simulation and Implementation of a Fault Tolerant Permanent Magnet AC Motor Drive with Redundancy by : Jingwei Zhu
Download or read book Modelling, Simulation and Implementation of a Fault Tolerant Permanent Magnet AC Motor Drive with Redundancy written by Jingwei Zhu and published by . This book was released on 2008 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Design of Fault Tolerant Axial Flux Permanent Magnet Synchronous Motors by : Harold Saavedra Ordóñez
Download or read book Analysis and Design of Fault Tolerant Axial Flux Permanent Magnet Synchronous Motors written by Harold Saavedra Ordóñez and published by . This book was released on 2015 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric vehicles (EVs) are attractive comparted to internal combustion engine powered vehicles due to several benefits, including low emissions, higher efficiency, less maintenance costs, stronger acceleration or lower fuel price, among others. EVs require traction motors with especial features, including high efficiency, high power and torque density, compactness, precise torque control, extended speed range. This work focuses on the analysis and optimal electromagnetic design of fault tolerant permanent magnet synchronous motors. The study is mainly based on the research of analytical design procedures and the effect of electrical faults in the motor behavior, according to the configurations of each machine. The study will be developed by using analytical tools, and validated by applying 2-D and 3-D finite element methods (FEM). A brief study about the main achievements regarding the design of fault tolerant machines is made, identifying the possible improvements and main rules of design in this kind of machines. Then a study focused on the requirements of a fault tolerant design is made, in order to select the appropriate motor configuration. Since the consequences of inter-turn faults can be catastrophic in PMSMs, chapter 3 studies the influence of the winding configuration on the detection of such faults. This detection is based on the analysis of the stator currents and the (zero-sequence voltage component) ZSVC spectra. Several types of winding configurations are selected for analysis i.e. fractional- and integral-slot windings, overlapping- and non-overlappingwindings, single- and double-layer, full- and short-pitch, constant- and variable-pitch windings. Taking into the fault tolerant tendencies about the redundancy of the system, the study of the effect of inter turn fault is extended to the five phase machine, thus a parametric model of the five-phase PMSM is developed, this model accounts for the effects of inter-turn faults. This parametric model is used to select the harmonic frequencies to be studied to detect such faults. Likewise, the amplitudes of these harmonic frequencies are further analyzed by means of FEM simulations, therefore showing the potential of the proposed system to detect inter-turn faults in their early stage, which is a desirable characteristic for a fault tolerant system. The demagnetization effect on AFP03 torque is also analyzed. The main objective was to study the influence of the magnet shape in the performance of an AFP03 working under faulty condition, in order to select the most suitable type of magnet for the design of a fault tolerant machine. After an exhaustive analysis of the main electromagnetic faults on PMSMs, the work is focused on the optimal electromagnetic design of an AFP03. The optimal design is based on a set of analytical equations whose accuracy is validated by means of FEM simulations. Next, to find the optimal solution, the huge set of possible motor solutions is explored by means of computationally efficient optimization algorithms leading to an optimum solution while minimizing the computational burden. The set of analytical equations are solved to obtain the geometrical, electric and mechanical parameters of the optimized AFP03 and several design restrictions are applied to ensure fault tolerance capability, along with the recommended features that have been drawn from the fault analysis study. Finally, a dual outer rotor AFP03 with NN configuration for automotive applications is optimized by applying accurate analytical sizing equations and taking into account fault tolerant constraints. For optimization purpose, a multi-objective design strategy is applied, in which the optimization variables are the motor efficiency and power density and ten input geometric and electric parameters are considered, with their respective bounds and constraints. At last the model is verified by applying 3D-FEM simulations and the main performance characteristics are compared.
Book Synopsis Modeling and Simulation Based Analysis in Reliability Engineering by : Mangey Ram
Download or read book Modeling and Simulation Based Analysis in Reliability Engineering written by Mangey Ram and published by CRC Press. This book was released on 2018-07-18 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in reliability engineering has become the most challenging and demanding area of research. Modeling and Simulation, along with System Reliability Engineering has become a greater issue because of high-tech industrial processes, using more complex systems today. This book gives the latest research advances in the field of modeling and simulation, based on analysis in engineering sciences. Features Focuses on the latest research in modeling and simulation based analysis in reliability engineering. Covers performance evaluation of complex engineering systems Identifies and fills the gaps of knowledge pertaining to engineering applications Provides insights on an international and transnational scale Modeling and Simulation Based Analysis in Reliability Engineering aims at providing a reference for applications of mathematics in engineering, offering a theoretical sound background with adequate case studies, and will be of interest to researchers, practitioners, and academics.
Book Synopsis Design and Analysis of Fault-tolerant Multiphase Motor Drive Using Phase and Parallel Redundancies by : Woongkul Lee
Download or read book Design and Analysis of Fault-tolerant Multiphase Motor Drive Using Phase and Parallel Redundancies written by Woongkul Lee and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, electric power conversion systems have drawn a lot of attentions due to rapidly growing interests in transportation electrification and distributed energy system (DER). High-performance power electronics, batteries, and electric machines are the key enabling technologies for accelerating and fostering this trends, and significant efforts have been devoted to developing more efficient, reliable, and cost-effective power conversion systems. This thesis aims to shed light on reliability of motor drive systems for safety-critical applications such as hybrid electric/electric vehicles, off-road vehicles, electrified aircrafts, and ships. A novel fault-tolerant motor drive topology with a new vector control technique is proposed to achieve extremely high-level of reliability and performance. The proposed fault-tolerant motor drive consists of n number of two-phase inverter modules and 2n-phase electric machine (n = 1, 2, or 3). This configuration can also be extended to 6n-phase motor drive topology with 3n number of inverter modules. Each inverter module with the associated two-phase motor winding can produce a constant instantaneous output power and torque using the proposed vector control technique. When n is equal or higher than 2, the proposed fault-tolerant motor drive starts exhibiting both parallel and phase redundancies, which are the key enabling elements of the fault-tolerant operation in multiple open- and short-circuit fault conditions. The design and operation of the proposed fault-tolerant motor drive have been validated analytically, and investigated by extensive simulations (circuit, control, and motor design), followed by experimental verification. The proposed fault-tolerant motor drive topology can be designed in several different configurations depending on the number of inverter modules and phases, attention in this thesis has been limited to three two-phase inverters with a balanced six-phase permanent magnet (PM) motor (n = 3). It has been analytically and experimentally verified that the proposed fault-tolerant motor drive (n = 3) can tolerate up to four-phase open-circuit faults and two-phase short-circuit faults. Several new open- and short-circuit fault compensation strategies have been proposed and investigated in detail. The required overrating factors of the inverter modules and the electric machine for achieving rated output torque in post-fault operation are also studied for optimal and cost-effective fault-tolerant motor drive design.
Book Synopsis Proceedings of the 5th International Conference on Electrical Engineering and Control Applications–Volume 1 by : Salim Ziani
Download or read book Proceedings of the 5th International Conference on Electrical Engineering and Control Applications–Volume 1 written by Salim Ziani and published by Springer Nature. This book was released on with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Simulation for Electric Vehicle Applications by : Mohamed Amine Fakhfakh
Download or read book Modeling and Simulation for Electric Vehicle Applications written by Mohamed Amine Fakhfakh and published by BoD – Books on Demand. This book was released on 2016-10-05 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents interesting topics from the area of modeling and simulation of electric vehicles application. The results presented by the authors of the book chapters are very interesting and inspiring. The book will familiarize the readers with the solutions and enable the readers to enlarge them by their own research. It will be useful for students of Electrical Engineering; it helps them solve practical problems.
Book Synopsis Distributed Control and Self-sensing of Permanent-magnet Modular Motor Drives (mmds) for Electric Aircraft Propulsion by : Hao Zeng
Download or read book Distributed Control and Self-sensing of Permanent-magnet Modular Motor Drives (mmds) for Electric Aircraft Propulsion written by Hao Zeng and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent magnet (PM) modular motor drives (MMDs) have been recognized as promising candidate motor drive units for electric aircraft propulsion applications due to their high power density, high efficiency, and high level of fault tolerance. A modular motor drive has a modular stator design that consists of a number of multi-phase modules, with each module excited by its own drive. The drive system reliability can be greatly improved by the power stage redundancy introduced by the modular motor drive configuration. However, conventional centralized control is still a potent source of single-point failures that can seriously degrade the MMD's system reliability, requiring the modularization concept to also be implemented in the controls.Heterarchical distributed control has been identified during this research as the preferred control architecture to meet demanding system reliability requirements by offering an independent controller in each module to eliminate single-point failures. In this architecture, the MMD's distributed module controllers operate as equal peers without critical data communications between them in order to avoid cascaded failures. To facilitate distributed control algorithm design and analysis for this heterarchical control architecture, a module-level machine analysis and modeling framework has been developed. This analysis has identified and characterized the key electromagnetic asymmetries in modular machines including intra-module unbalanced inductances and inter-module unbalanced cross-coupled fluxes that are attributable to asymmetric mutual flux couplings within and between the modules, respectively. A generalized complex vector module-level machine model has been proposed for PM MMDs that captures and highlights the asymmetric features that distinguish the modules from conventional machines. It is shown that this developed complex vector model is also compatible with machines with rotor saliencies. Negative sequence current responses are identified that are induced by module-level machine asymmetries. This feature degrades the inter-module independence of MMDs, especially under fault conditions where maximum inter-module independence is desired. A distributed control algorithm with a space vector resonator-based negative sequence harmonic regulator is proposed to implement control-based virtual electromagnetic isolation. With the proposed algorithm, negative sequence responses are rejected to achieve appealingly high levels of drive module independence. A distributed self-sensing algorithm has also been developed during this research program to eliminate single-point failures attributable to the machine's single shaft-mounted position sensor. A distributed current observer/ back-EMF state filter with integrated bandwidth-partitioned observer command feedforward has been developed with virtual electromagnetic isolation features that reject disturbances from other modules on estimated position and speed. A higher level of inter-module independence is achieved in the modular motor drive using the proposed distributed self-sensing algorithm. MMDs with high power densities and high power ratings typically result in high fundamental excitation frequencies at high speeds and limited PWM switching frequencies that often interact to create performance complications. Cross-couplings caused by the PWM latch delay, control update delay, and rotation can significantly degrade the discrete-time control performance of the MMD at high fundamental frequencies. To address this problem, an enhanced discrete-time control framework with manipulated and disturbance input decoupling has been developed, and a direct-synthesized complex vector current regulator has been proposed with an accurate pole-zero cancellation feature to address issues arising from the aforementioned cross-couplings. The proposed discrete-time algorithm has been demonstrated to significantly enhance the MMD's dynamic performance at low control-to-fundamental frequency ratios with values less than 5:1. Experimental evaluation of key features of the proposed distributed current vector control have been carried out using a prototype 200 kW PM modular motor drive system and a low-power PM modular motor drive concept demonstrator unit. Excellent control independence and control coordination in the heterarchical control architecture have been demonstrated under healthy conditions and with various faults based on the proposed distributed control framework and algorithms. The proposed discrete time form of complex vector current regulators has been tested and successfully verified using prototype 200 kW and 1 MW PM modular motor drive systems. The tests have demonstrated excellent dynamic and steady state performance at low control-to-fundamental frequencies ratios as low as 2.5.
Book Synopsis Brushless Permanent-magnet and Reluctance Motor Drives by : Timothy John Eastham Miller
Download or read book Brushless Permanent-magnet and Reluctance Motor Drives written by Timothy John Eastham Miller and published by Oxford University Press, USA. This book was released on 1989 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: A presentation of the theory of brushless d.c. drives to help engineers appreciate the potential of such motors and apply them more widely, by taking into account developments in permanent-magnet materials, power semiconductors, electronic control and motor design.
Book Synopsis Modelling, Fault Detection and Control of Fault Tolerant Permanent Magnet Machine Drives by : Bhaskar Sen
Download or read book Modelling, Fault Detection and Control of Fault Tolerant Permanent Magnet Machine Drives written by Bhaskar Sen and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fault-tolerant Integrated Modular Motor Drive for Applications with Demanding Reliability Requirements by : James Anthony Swanke
Download or read book Fault-tolerant Integrated Modular Motor Drive for Applications with Demanding Reliability Requirements written by James Anthony Swanke and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent magnet synchronous machines (PMSMs) are commonly used in transportation applications due to their high efficiency and low mass. Additional benefits can be achieved by integrating power electronics into the machine to form an integrated motor drive (IMD). The PMSM IMD is a candidate for electric aircraft propulsion applications with elevated reliability requirements compared to typical terrestrial applications. IMD reliability can be improved with the incorporation of fault-tolerant (FT) features into the design. A technique for enhancing a motor drive's fault tolerance is to divide it into redundant three-phase channels, enabling continued operation after multiple faults. Maintaining electromagnetic and thermal isolation between three-phase channels is critical to avoid fault propagation. Combining this modularity with the basic IMD results in an integrated modular motor drive (IMMD). Machine power density, module isolation, performance, and reliability tradeoffs are investigated for IMMDs. A promising IMMD configuration with electromagnetic and thermal isolation characteristics has been proposed and evaluated for a four-module IMMD used in a quadrotor aircraft. To enhance the electromagnetic isolation, cavities are introduced into the stator yoke, and the stator tooth tips have been manipulated to minimize electromagnetic interactions between phases while minimizing the negative impact on the machine's power density. Additionally, direct cooling inside the stator slots and placement of insulation provides thermal isolation between phases. A reliability analysis is completed for the four-module IMMD configuration using Markov chain tools. This analysis addresses the major drive-system components, including healthy and faulted stresses. The importance of repairs and the single-point failure rate in determining the complete IMMD's failure rate are highlighted. The analysis is generalized to consider the IMMD's module count and the number of faulted modules. Figures of merit are established to compare FT topologies based on their improved reliability potential measured against their offsetting penalties. The developed isolation concepts are refined during the design and fabrication of a two-module PMSM. Machine parameters and performance were validated experimentally for healthy and faulted conditions. Test results confirm the effectiveness of the new electromagnetic and thermal isolation features, and the ability of the healthy module to continue delivering its pre-fault torque following a fault.
Book Synopsis Fault-tolerant Integrated Modular Motor Drive for Applications with Demanding Reliability Requirements by : James Anthony Swanke
Download or read book Fault-tolerant Integrated Modular Motor Drive for Applications with Demanding Reliability Requirements written by James Anthony Swanke and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent magnet synchronous machines (PMSMs) are commonly used in transportation applications due to their high efficiency and low mass. Additional benefits can be achieved by integrating power electronics into the machine to form an integrated motor drive (IMD). The PMSM IMD is a candidate for electric aircraft propulsion applications with elevated reliability requirements compared to typical terrestrial applications. IMD reliability can be improved with the incorporation of fault-tolerant (FT) features into the design. A technique for enhancing a motor drive's fault tolerance is to divide it into redundant three-phase channels, enabling continued operation after multiple faults. Maintaining electromagnetic and thermal isolation between three-phase channels is critical to avoid fault propagation. Combining this modularity with the basic IMD results in an integrated modular motor drive (IMMD). Machine power density, module isolation, performance, and reliability tradeoffs are investigated for IMMDs. A promising IMMD configuration with electromagnetic and thermal isolation characteristics has been proposed and evaluated for a four-module IMMD used in a quadrotor aircraft. To enhance the electromagnetic isolation, cavities are introduced into the stator yoke, and the stator tooth tips have been manipulated to minimize electromagnetic interactions between phases while minimizing the negative impact on the machine's power density. Additionally, direct cooling inside the stator slots and placement of insulation provides thermal isolation between phases. A reliability analysis is completed for the four-module IMMD configuration using Markov chain tools. This analysis addresses the major drive-system components, including healthy and faulted stresses. The importance of repairs and the single-point failure rate in determining the complete IMMD's failure rate are highlighted. The analysis is generalized to consider the IMMD's module count and the number of faulted modules. Figures of merit are established to compare FT topologies based on their improved reliability potential measured against their offsetting penalties. The developed isolation concepts are refined during the design and fabrication of a two-module PMSM. Machine parameters and performance were validated experimentally for healthy and faulted conditions. Test results confirm the effectiveness of the new electromagnetic and thermal isolation features, and the ability of the healthy module to continue delivering its pre-fault torque following a fault.
Book Synopsis Performance Comparison and Simulation of Permanent Magnet AC Drives and Parameter Estimation Techniques by : Graham H. Morton
Download or read book Performance Comparison and Simulation of Permanent Magnet AC Drives and Parameter Estimation Techniques written by Graham H. Morton and published by . This book was released on 2012 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents research on common PWM switching strategies implemented with permanent magnet AC machine drives. This study also considers online parameter estimation techniques that can be implemented with such drives. Finally a new simulation model of the drive and tools for modelling the specific machine under test are presented. Initially the research focuses on comparisons of the performance parameters which are influenced by the differences in current control strategies. Bang-Bang, PI and SVPWM controllers are the three alternative switching strategies which are discussed and then evaluated. The results highlight the impact the strategy selection has on the phase current quality and hence the power output of the motor under test. PI and SVPWM are both strategies that utilise a fixed switching frequency and as a result exhibit larger power losses in the inverter stage of the drive system. Bang-Bang control is seen to exhibit greater power losses in terms of output power in the motor stage as a direct result of the poor quality phase current waveform generated. The experiments conducted allow for a thorough comparison of each strategy outlined. Techniques used to estimate the average phase voltage commanded under operation are presented in this thesis. Techniques for estimating phase voltage when operating the SVPWM technique on a wye connected machine is described, as are techniques for use with both PI and SVPWM control of a delta connected machine. This is based on published techniques that have been implemented for the PI wye connected case. The voltage estimation techniques are then used to estimate the flux linkage waveforms of the machine under test. Validation for this technique is sought through comparison of measurements with predictions made using commercially available finite element analysis tools; the measurements and predictions are shown to correlate to a significant degree. In search of validating the techniques against measurements made with calibrated measurement equipment - known to be reliable - the validation path results in subsequent techniques to be developed which estimate the average torque output of the machine under test. Torque measurements made using commercially available torque transducer equipment are compared with online estimates allowing for a validation of the voltage estimations. Using a new simulation environment - Portunus from Adapted Solutions - a modern permanent magnetic synchronous machine drive system has been modelled. Making use of a PMSM component developed by Dr Mircea Popescu of Motor Design Ltd, a model of the drive system is constructed by the addition of customised components of the controller technology and other drive system hardware. This includes a custom developed C++ model of the SPEED laboratory FCIV technology which is used to control the drive system used in this research. Use of standard Portunus logic components is also presented which effectively models the interface of the gate drive signals with the voltage inverter components of the drive system. Finally the thesis details the results of simulations modelling the comparison of the control strategies of chapter 2 and also the online estimation techniques of chapter 3. The simulation model's inclusion of a dedicated machine component allows for effective tailoring of the system model on a per machine basis; this allows for a comparison of the results presented in the initial testing with the simulated equivalents. Such a comparison is also made between the results of the testing of the online torque estimation techniques and the simulated response of the estimation techniques. Strong correlation is shown between the results of the testing carried out in the early stages of the research using the drive system outlined in chapters 2 and 3 with the simulation results obtained using the model outlined in chapters 4 and 5.
Book Synopsis A Novel Design Optimization of a Fault-tolerant AC Permanent Magnet Machine-drive System by : Peng Zhang
Download or read book A Novel Design Optimization of a Fault-tolerant AC Permanent Magnet Machine-drive System written by Peng Zhang and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, fault-tolerant capabilities of permanent magnet (PM) machines were investigated. The 12-slot 10-pole PM machines with V-type and spoke-type PM layouts were selected as candidate topologies for fault-tolerant PM machine design optimization problems. The combination of 12-slot and 10-pole configuration for PM machines requires a fractional-slot concentrated winding (FSCW) layout, which can lead to especially significant PM losses in such machines. Thus, a hybrid method to compute the PM losses was investigated, which combines computationally efficient finite-element analysis (CE-FEA) with a new analytical formulation for PM eddy-current loss computation in sine-wave current regulated synchronous PM machines. These algorithms were applied to two FSCW PM machines with different circumferential and axial PM block segmentation arrangements. The accuracy of this method was validated by results from 2D and 3D time-stepping FEA. The CE-FEA approach has the capabilities of calculating torque profiles, induced voltage waveforms, d and q-axes inductances, torque angle for maximum torque per ampere load condition, and stator core losses. The implementation techniques for such a method are presented. A combined design optimization method employing design of experiments (DOE) and differential evolution (DE) algorithms was developed. The DOE approaches were used to perform a sensitivity study from which significant independent design variables were selected for the DE design optimization procedure. Two optimization objectives are concurrently considered for minimizing material cost and power losses. The optimization results enabled the systematic comparison of four PM motor topologies: two different V-shape, flat bar-type and spoke-type, respectively. A study of the relative merits of each topology was determined. An automated design optimization method using the CE-FEA and DE algorithms was utilized in the case study of a 12-slot 10-pole PM machine with V-type PM layout. An engineering decision process based on the Pareto-optimal front for two objectives, material cost and losses, is presented together with discussions on the tradeoffs between cost and performance. One optimal design was finally selected and prototyped. A set of experimental tests, including open circuit tests at various speeds and on-load tests under various load and speed conditions, were performed successfully, which validated the findings of this work.
Book Synopsis Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology by : IEEE Singapore Section
Download or read book Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology written by IEEE Singapore Section and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 2001 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes contain the conference proceedings from the IEEE Region 10 International Conference on Electrical and Electronic Technology.
Book Synopsis Simulation & Modeling Mechatronics by :
Download or read book Simulation & Modeling Mechatronics written by and published by SAE International. This book was released on 2006 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiple 3-phase Fault Tolerant Permanent Magnet Machine Drives: Design and Control by : Bo Wang
Download or read book Multiple 3-phase Fault Tolerant Permanent Magnet Machine Drives: Design and Control written by Bo Wang and published by Wiley-IEEE Press. This book was released on 2024-12-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundbreaking analysis of a fully functional fault-tolerant machine drive Electrical machine drives have become an increasingly important component of transportation electrification, including electric vehicles, railway and subway traction, aerospace actuation, and more. This expansion of electrical machine drives into safety-critical areas has driven an increasingly urgent demand for high reliability and strong fault tolerance. Machine drives incorporating a permanent magnet (PM)-assisted synchronous reluctance machine drive with a segregated winding have shown to exhibit notably reduced PM flux and correspondingly enhanced fault tolerance. Multiple 3-Phase Fault Tolerant Permanent Magnet Machine Drives: Design and Control offers one of the first fully integrated accounts of a functional fault-tolerant machine drive. It proposes a segregated winding which can be incorporated into multiple machine topologies without affecting performance and brings together cutting-edge technologies to manage these crucial drives in both healthy and fault conditions. The result is a must-own for engineers and researchers alike. Readers will also find: Advanced modeling techniques for different operation conditions Detailed discussion on topics including fault detection techniques, postfault tolerant control strategies, and many more An authorial team with immense experience in the study of fault-tolerant machine drives Multiple 3-Phase Fault Tolerant Permanent Magnet Machine Drives: Design and Control is ideal for researchers and graduate students in engineering and related industries.
Book Synopsis Fault-Diagnosis Systems by : Rolf Isermann
Download or read book Fault-Diagnosis Systems written by Rolf Isermann and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: With increasing demands for efficiency and product quality plus progress in the integration of automatic control systems in high-cost mechatronic and safety-critical processes, the field of supervision (or monitoring), fault detection and fault diagnosis plays an important role. The book gives an introduction into advanced methods of fault detection and diagnosis (FDD). After definitions of important terms, it considers the reliability, availability, safety and systems integrity of technical processes. Then fault-detection methods for single signals without models such as limit and trend checking and with harmonic and stochastic models, such as Fourier analysis, correlation and wavelets are treated. This is followed by fault detection with process models using the relationships between signals such as parameter estimation, parity equations, observers and principal component analysis. The treated fault-diagnosis methods include classification methods from Bayes classification to neural networks with decision trees and inference methods from approximate reasoning with fuzzy logic to hybrid fuzzy-neuro systems. Several practical examples for fault detection and diagnosis of DC motor drives, a centrifugal pump, automotive suspension and tire demonstrate applications.
