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Monitoring And Diagnosis Of Turbine Driven Generators
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Book Synopsis Monitoring and Diagnosis of Turbine-driven Generators by : Avelino J. Gonzalez
Download or read book Monitoring and Diagnosis of Turbine-driven Generators written by Avelino J. Gonzalez and published by . This book was released on 1995 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text aims to teach readers to recognize the symptoms of an on-line steam turbine generator whenever abnormal conditions exist that can lead to a significant unit outage. It also presents information on what corrective action to take to mitigate the circumstances or minimize the damage.
Book Synopsis The Use of Electrical Measurements of Wind Turbine Generators for Drive Train Condition Monitoring by : Emilio Gomez-Lazaro
Download or read book The Use of Electrical Measurements of Wind Turbine Generators for Drive Train Condition Monitoring written by Emilio Gomez-Lazaro and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: More modern and larger wind turbine (WT) generators are under continuous development. These exhibit more faults than smaller ones, which becomes critical offshore. Under this framework, operation and maintenance (O&M) is the key to improve reliability and availability of WTs, where condition-based maintenance (CBM) is currently seen as the preferred approach by the early detection and diagnosis of critical faults for WTs. The induction generator is one of the biggest contributors to failure rates and downtime of WTs, together with the gearbox and the drive train. In the present chapter, current signature analysis (CSA) will be introduced as a means for fault detection of WTs. CSA is a cost-effective and nonintrusive technique that can monitor both mechanical and electrical faults within the induction generator, as well as bearing- and gearbox-related faults. Different test cases of in-service wind turbine generators will be used to illustrate its usefulness.
Book Synopsis Chapter The Use of Electrical Measurements of Wind Turbine Generators for Drive Train Condition Monitoring by : Estefania Artigao
Download or read book Chapter The Use of Electrical Measurements of Wind Turbine Generators for Drive Train Condition Monitoring written by Estefania Artigao and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: More modern and larger wind turbine (WT) generators are under continuous development. These exhibit more faults than smaller ones, which becomes critical offshore. Under this framework, operation and maintenance (O&M) is the key to improve reliability and availability of WTs, where condition-based maintenance (CBM) is currently seen as the preferred approach by the early detection and diagnosis of critical faults for WTs. The induction generator is one of the biggest contributors to failure rates and downtime of WTs, together with the gearbox and the drive train. In the present chapter, current signature analysis (CSA) will be introduced as a means for fault detection of WTs. CSA is a cost-effective and nonintrusive technique that can monitor both mechanical and electrical faults within the induction generator, as well as bearing- and gearbox-related faults. Different test cases of in-service wind turbine generators will be used to illustrate its usefulness.
Book Synopsis Protection of Wind Turbine Generators Using Microcontroller-Based Applications by : Nagwa F. Ibrahim
Download or read book Protection of Wind Turbine Generators Using Microcontroller-Based Applications written by Nagwa F. Ibrahim and published by Springer Nature. This book was released on 2022-02-08 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protection of Wind Turbine Generators Using Microcontroller-Based Applications focuses on the application of microcontrollers in the protection of wind turbine generators. The book looks at the design and implementation of a versatile digital overcurrent (OC), OV/UV, OF/UF, and negative sequence relays, and addresses the dynamic behaviour of a wind-driven induction generator (IG) connected to a power system grid through a transmission line. The transient responses of protective devices associated with the IG are also studied. Modelling of the digital relay for wind turbine generator protection using MATLAB Simulink consider most of the aerodynamic and mechanical effects that can influence instantaneous output voltage, current, and power. Coverage also includes different AC fault types, a detailed theoretical analysis of fault and protection strategy in AC fault, and the different types of fault detection algorithms to maintain power system reliability.
Book Synopsis Operation and Maintenance of Large Turbo-Generators by : Geoff Klempner
Download or read book Operation and Maintenance of Large Turbo-Generators written by Geoff Klempner and published by John Wiley & Sons. This book was released on 2004-08-11 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: The comprehensive guide for the operation and maintenance of large turbo-generators Operation and Maintenance of Large Turbo-Generators is the ultimate resource for operators and inspectors of large utility and industrial generating facilities who deal with multiple units of disparate size, origin, and vintage. It offers the complete scope of information regarding operation and maintenance of all types of turbine-driven generators built in the world. Based on the authors’ combined sixty years of generating station and design work experience, the information presented in the book is designed to inform the reader about actual machine operational problems and failure modes that occur in generating stations and other types of facilities. Readers will find very detailed coverage of: Design and construction of generators and auxiliary systems Generator operation, including interaction with the grid Monitoring, diagnostics, and protection of turbo-generators Inspection practices, including stator, rotor, and auxiliary systems Ideas for improving plant reliability and reducing costs and electrical failures Maintenance testing, including electrical and nondestructive examination Operation and Maintenance of Large Turbo-Generators comes filled with photos and graphs, commonly used inspection forms, and extensive references for each topic. It is an indispensable resource for anyone involved in the design, construction, protection, operation, maintenance, and troubleshooting of large generators in generating stations and industrial power facilities. The book is also an excellent learning tool for students, consultants, and design engineers.
Book Synopsis Nonintrusive Condition Monitoring and Fault Diagnosis for Wind Turbine Gearboxes Using Generator Current Signals by : Dingguo Lu
Download or read book Nonintrusive Condition Monitoring and Fault Diagnosis for Wind Turbine Gearboxes Using Generator Current Signals written by Dingguo Lu and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this dissertation research is to develop nonintrusive condition monitoring and fault diagnosis methods for wind turbine gearboxes. The proposed methods use only the current signals measured from the terminals or used in the control system of wind turbine generators. Current-based gearbox fault diagnosis has advantages over traditional vibration-based methods in terms of cost, hardware complexity, implementation, and reliability.
Book Synopsis Handbook of Large Turbo-Generator Operation and Maintenance by : Geoff Klempner
Download or read book Handbook of Large Turbo-Generator Operation and Maintenance written by Geoff Klempner and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers the complete scope of information regarding operation and maintenance of all types of turbine-driven generators built in the world. The information presented is designed to inform the reader about actual machine operational problems and failure modes that occur in generating stations and other types of facilities.
Book Synopsis Handbook of Large Hydro Generators by : Glenn Mottershead
Download or read book Handbook of Large Hydro Generators written by Glenn Mottershead and published by John Wiley & Sons. This book was released on 2020-11-11 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers comprehensive coverage of the operation and maintenance of large hydro generators This book is a practical handbook for engineers and maintenance staff responsible for the upkeep of large salient-pole hydro generators used in electric power plants. Focusing on the physics and maintenance of large vertical salient pole generators, it offers readers real-world experience, problem description, and solutions, while teaching them about the design, modernization, inspections, maintenance, and operation of salient pole machines. Handbook of Large Hydro Generators: Operation and Maintenance provides an introduction to the principles of operation of synchronous machines. It then covers design and construction, auxiliary systems, operation and control, and monitoring and diagnostics of generators. Generator protection, inspection practices and methodology and auxiliaries inspections are also examined. The final two chapters are dedicated to maintenance and testing, and maintenance philosophies, upgrades, and uprates. The handbook includes over 420 color photos and 180 illustrations, forms, and tables to complement the topics covered in the chapters. Written with a machine operator and inspector in mind, Handbook of Large Hydro Generators: Operation and Maintenance: Instructs readers how to perform complete machine inspections, understand what they are doing, and find solutions for any problems encountered Includes real-life, practical, field experiences so that readers can familiarize themselves with aspects of machine operation, maintenance, and solutions to common problems Benefits experienced and new power plant operators, generator design engineers and operations engineers. Is authored by industry experts who participated in the writing and maintenance of IEEE standards (IEEE C50.12 and C50.13) on the subject Handbook of Large Hydro Generators: Operation and Maintenance is an ideal resource for scientists and engineers whose research interest is in electromagnetic and energy conversion. It is also an excellent book for senior undergraduate and graduate students majoring in energy generation, and generator operation and maintenance.
Book Synopsis Final Technical Report Recovery Act by :
Download or read book Final Technical Report Recovery Act written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The penetration of wind power has increased greatly over the last decade in the United States and across the world. The U.S. wind power industry installed 1,118 MW of new capacity in the first quarter of 2011 alone and entered the second quarter with another 5,600 MW under construction. By 2030, wind energy is expected to provide 20% of the U.S. electricity needs. As the number of wind turbines continues to grow, the need for effective condition monitoring and fault detection (CMFD) systems becomes increasingly important [3]. Online CMFD is an effective means of not only improving the reliability, capacity factor, and lifetime, but it also reduces the downtime, energy loss, and operation and maintenance (O & M) of wind turbines. The goal of this project is to develop novel online nonintrusive CMFD technologies for wind turbines. The proposed technologies use only the current measurements that have been used by the control and protection system of a wind turbine generator (WTG); no additional sensors or data acquisition devices are needed. Current signals are reliable and easily accessible from the ground without intruding on the wind turbine generators (WTGs) that are situated on high towers and installed in remote areas. Therefore, current-based CMFD techniques have great economic benefits and the potential to be adopted by the wind energy industry. Specifically, the following objectives and results have been achieved in this project: (1) Analyzed the effects of faults in a WTG on the generator currents of the WTG operating at variable rotating speed conditions from the perspective of amplitude and frequency modulations of the current measurements; (2) Developed effective amplitude and frequency demodulation methods for appropriate signal conditioning of the current measurements to improve the accuracy and reliability of wind turbine CMFD; (3) Developed a 1P-invariant power spectrum density (PSD) method for effective signature extraction of wind turbine faults with characteristic frequencies in the current or current demodulated signals, where 1P stands for the shaft rotating frequency of a WTG; (4) Developed a wavelet filter for effective signature extraction of wind turbine faults without characteristic frequencies in the current or current demodulated signals; (5) Developed an effective adaptive noise cancellation method as an alternative to the wavelet filter method for signature extraction of wind turbine faults without characteristic frequencies in the current or current demodulated signals; (6) Developed a statistical analysis-based impulse detection method for effective fault signature extraction and evaluation of WTGs based on the 1P-invariant PSD of the current or current demodulated signals; (7) Validated the proposed current-based wind turbine CMFD technologies through extensive computer simulations and experiments for small direct-drive WTGs without gearboxes; and (8) Showed, through extensive experiments for small direct-drive WTGs, that the performance of the proposed current-based wind turbine CMFD technologies is comparable to traditional vibration-based methods. The proposed technologies have been successfully applied for detection of major failures in blades, shafts, bearings, and generators of small direct-drive WTGs. The proposed technologies can be easily integrated into existing wind turbine control, protection, and monitoring systems and can be implemented remotely from the wind turbines being monitored. The proposed technologies provide an alternative to vibration-sensor-based CMFD. This will reduce the cost and hardware complexity of wind turbine CMFD systems. The proposed technologies can also be combined with vibration-sensor-based methods to improve the accuracy and reliability of wind turbine CMFD systems. When there are problems with sensors, the proposed technologies will ensure proper CMFD for the wind turbines, including their sensing systems. In conclusion, the proposed technologies offer a ...
Book Synopsis IEEE Recommended Practice for Monitoring and Instrumentation of Turbine Generators by :
Download or read book IEEE Recommended Practice for Monitoring and Instrumentation of Turbine Generators written by and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preventive Maintenance and Fault Detection for Wind Turbine Generators Using a Statistical Model by : Ian Kuiler
Download or read book Preventive Maintenance and Fault Detection for Wind Turbine Generators Using a Statistical Model written by Ian Kuiler and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Vigilant fault diagnosis and preventive maintenance has the potential to significantly decrease costs associated with wind generators. As wind energy continues the upward growth in technology and continued worldwide adoption and implementation, the application of fault diagnosis techniques will become more imperative. Fault diagnosis and preventive maintenance techniques for wind turbine generators are still at an early stage compared to matured strategies used for generators in conventional power plants. The cost of wind energy can be further reduced if failures are predicted in advance of a major structural failure, which leads to less unplanned maintenance. High maintenance cost of wind turbines means that predictive strategies like fault diagnosis and preventive maintenance techniques are necessary to manage life cycle costs of critical components. Squirrel-Cage Induction Generators (SCIG) are the prevailing generator type and are more robust and cheaper to manufacturer compared to other generator types used in wind turbines. A statistical model was developed using SCADA data to estimate the relationships between winding temperatures and other variables. Predicting faults in stator windings are challenging because the unhealthy condition rapidly evolves into a functional failure.
Book Synopsis Large Turbo-Generators by : Isidor Kerszenbaum
Download or read book Large Turbo-Generators written by Isidor Kerszenbaum and published by CRC Press. This book was released on 2016-09-15 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive, ordered relationship between malfunctions and symptoms occurring in large turbogenerators. With this book, the operator and/or engineer in a generating station could identify underlying causes of a developing component degradation or a failure quicker, which could potentially save both time and money and reduce the trial-and-error troubleshooting process. Large turbogenerators are the most important source of electricity. They can be found in thousands of power stations in every country. Forced outages, failures and degradation of these very expensive machines have an enormous aggregate cost to society. As such, any tool that can ameliorate loss of production by shaving time from troubleshooting activities, and avoiding unnecessary costs by detecting and promptly responding to component degradation, represents a step forward.
Book Synopsis Turbines, Generators and Associated Plant by : D.J. Littler
Download or read book Turbines, Generators and Associated Plant written by D.J. Littler and published by Elsevier. This book was released on 2013-10-22 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of new 500 MW and 660 MW turbine generator plant in nuclear, coal- and oil-fired power stations has been partly responsible for the increase in generating capacity of the CEGB over the last 30 years. This volume provides a detailed account of experience gained in the development, design, manufacture, operation and testing of large turbine-generators in the last 20 years. With the advance in analytical and computational techniques, the application of this experience to future design and operation of large turbine-generator plant will be of great value to engineers in the industry.
Book Synopsis Operational-Condition-Independent Criteria Dedicated to Monitoring Wind Turbine Generators by :
Download or read book Operational-Condition-Independent Criteria Dedicated to Monitoring Wind Turbine Generators written by and published by . This book was released on 2012 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: To date the existing wind turbine condition monitoring technologies and commercially available systems have not been fully accepted for improving wind turbine availability and reducing their operation and maintenance costs. One of the main reasons is that wind turbines are subject to constantly varying loads and operate at variable rotational speeds. As a consequence, the influences of turbine faults and the effects of varying load and speed are coupled together in wind turbine condition monitoring signals. So, there is an urgent need to either introduce some operational condition de-coupling procedures into the current wind turbine condition monitoring techniques or develop a new operational condition independent wind turbine condition monitoring technique to maintain high turbine availability and achieve the expected economic benefits from wind. The purpose of this paper is to develop such a technique. In the paper, three operational condition independent criteria are developed dedicated for monitoring the operation and health condition of wind turbine generators. All proposed criteria have been tested through both simulated and practical experiments. The experiments have shown that these criteria provide a solution for detecting both mechanical and electrical faults occurring in wind turbine generators.
Book Synopsis ADVANCED MONITORING TO IMPROVE COMBUSTION TURBINE (CT) by :
Download or read book ADVANCED MONITORING TO IMPROVE COMBUSTION TURBINE (CT) written by and published by . This book was released on 2002 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power generators are concerned with the maintenance costs associated with the advanced turbines that they are purchasing. Since these machines do not have fully established operation and maintenance (O & M) track records, power generators face financial risk due to uncertain future maintenance costs. This risk is of particular concern, as the electricity industry transitions to a competitive business environment in which unexpected O & M costs cannot be passed through to consumers. These concerns have accelerated the need for intelligent software-based diagnostic systems that can monitor the health of a combustion turbine in real time and provide valuable information on the machine's performance to its owner/operators. Such systems would interpret sensor and instrument outputs, correlate them to the machine's condition, provide interpretative analyses, forward projections of servicing intervals, estimate remaining component life, and identify faults. EPRI, Impact Technologies, Boyce Engineering, and Progress Energy have teamed to develop a suite of intelligent software tools integrated with a diagnostic monitoring platform that will, in real time, interpret data to assess the ''total health'' of combustion turbines. The Combustion Turbine Health Management System (CTHM) will consist of a series of dynamic link library (DLL) programs residing on a diagnostic monitoring platform that accepts turbine health data from existing monitoring instrumentation. The CTHM system will be a significant improvement over currently available techniques for turbine monitoring and diagnostics. CTHM will interpret sensor and instrument outputs, correlate them to a machine's condition, provide interpretative analyses, project servicing intervals, and estimate remaining component life. In addition, it will enable real-time anomaly detection and diagnostics of performance and mechanical faults, enabling power producers to more accurately predict critical component remaining useful life and turbine degradation.
Book Synopsis On-line Monitoring and Diagnostic Systems for Generators by : Westinghouse Electric Corporation. Steam Turbine Generator Technical Operations Division
Download or read book On-line Monitoring and Diagnostic Systems for Generators written by Westinghouse Electric Corporation. Steam Turbine Generator Technical Operations Division and published by . This book was released on 1979 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Operational-condition-independent Criteria Dedicated to Monitoring Wind Turbine Generators by : Wenxian Yang
Download or read book Operational-condition-independent Criteria Dedicated to Monitoring Wind Turbine Generators written by Wenxian Yang and published by . This book was released on 2012 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an urgent need to either introduce some operational condition de-coupling procedures into the current wind turbine condition monitoring techniques or develop a new operational condition independent wind turbine condition monitoring technique to maintain high turbine availability and achieve the expected economic benefits from wind. The purpose of this paper is to develop such a technique. In the paper, three operational condition independent criteria are developed dedicated for monitoring the operation and health condition of wind turbine generators. All proposed criteria have been tested through both simulated and practical experiments. The experiments have shown that these criteria provide a solution for detecting both mechanical and electrical faults occurring in wind turbine generators.
