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Reliability Evaluation Of Composite Power Systems Including The Effects Of Hurricanes
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Book Synopsis Reliability Evaluation of Composite Power Systems Including the Effects of Hurricanes by : Yong Liu
Download or read book Reliability Evaluation of Composite Power Systems Including the Effects of Hurricanes written by Yong Liu and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Adverse weather such as hurricanes can significantly affect the reliability of composite power systems. Predicting the impact of hurricanes can help utilities for better preparedness and make appropriate restoration arrangements. In this dissertation, the impact of hurricanes on the reliability of composite power systems is investigated. Firstly, the impact of adverse weather on the long-term reliability of composite power systems is investigated by using Markov cut-set method. The Algorithms for the implementation is developed. Here, two-state weather model is used. An algorithm for sequential simulation is also developed to achieve the same goal. The results obtained by using the two methods are compared. The comparison shows that the analytical method can obtain comparable results and meantime it can be faster than the simulation method. Secondly, the impact of hurricanes on the short-term reliability of composite power systems is investigated. A fuzzy inference system is used to assess the failure rate increment of system components. Here, different methods are used to build two types of fuzzy inference systems. Considering the fact that hurricanes usually last only a few days, short-term minimal cut-set method is proposed to compute the time-specific system and nodal reliability indices of composite power systems. The implementation demonstrates that the proposed methodology is effective and efficient and is flexible in its applications. Thirdly, the impact of hurricanes on the short-term reliability of composite power systems including common-cause failures is investigated. Here, two methods are proposed to archive this goal. One of them uses a Bayesian network to alleviate the dimensionality problem of conditional probability method. Another method extends minimal cut-set method to accommodate common-cause failures. The implementation results obtained by using the two methods are compared and their discrepancy is analyzed. Finally, the proposed methods in this dissertation are also applicable to other applications in power systems.
Book Synopsis Reliability Evaluation of Composite Power Generation and Transmission Systems by :
Download or read book Reliability Evaluation of Composite Power Generation and Transmission Systems written by and published by . This book was released on 1982 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composite Power Systems Reliability Evaluation by : J. R. Ochoa-Mendoza
Download or read book Composite Power Systems Reliability Evaluation written by J. R. Ochoa-Mendoza and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reliability Evaluation of Composite Power Systems by : C. Aruda
Download or read book Reliability Evaluation of Composite Power Systems written by C. Aruda and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power System Reliability Analysis by : International Conference on Large High Voltage Electric Systems
Download or read book Power System Reliability Analysis written by International Conference on Large High Voltage Electric Systems and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Equivalents to the Reliability Evaluation of Composite Power Systems by : H.A.M. Maghraby
Download or read book Application of Equivalents to the Reliability Evaluation of Composite Power Systems written by H.A.M. Maghraby and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reliability Analysis of Composite Power Systems using FACTS Controllers by : Suresh Kumar Tummala
Download or read book Reliability Analysis of Composite Power Systems using FACTS Controllers written by Suresh Kumar Tummala and published by Lulu.com. This book was released on 2015-10-29 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: To satisfy system load requirements, as economically as possible and with a reasonable assurance of continuity and quality.
Book Synopsis Load Shedding Techniques for Reliability Evaluation of Composite Power Systems by : H. Darnel
Download or read book Load Shedding Techniques for Reliability Evaluation of Composite Power Systems written by H. Darnel and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Reliability of Composite Power System Including Smart Grids by : Thotakura Bharath Kumar
Download or read book Assessment of Reliability of Composite Power System Including Smart Grids written by Thotakura Bharath Kumar and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The large service interruptions of power supply in the transmission system have significant impact on modern society. The aim of the power system engineers is to prevent and mitigate such events with optimal decisions in design, planning, operation and maintenance. Due to the rapid growth in the power demand and competitive power market scenario, the transmission and distribution systems are frequently being operated under heavily loaded conditions. This tends to make failure of components more frequent in the power system necessitating large downtime to repair or replace the equipment. A majority of the service interruptions are happening due to lack of proper planning and operation of power system. Therefore, complete reliability assessment in generation, transmission and distribution systems is needed at the planning stage. The reliability assessment in smart grids is very much beneficial to the power operator and reduces the risk of grid failure due to failure of major components in power systems. This chapter is confined to composite power system reliability assessment. The composite power system combines both the generation and transmission systems' adequacy. The generation system in the composite power system includes both conventional and renewable sources. The composite power system reliability assessment is quite difficult due to the large number of equipment, interconnected network topology and uncertainties in generation capacity. The reliability assessment concentrates mainly on the use of probabilistic states of components in generation and transmission systems to evaluate the overall reliability. This analysis will result in a cost-effective system configuration to provide continuous power supply to the consumers at reasonable cost. The reliability level of the system is measured by the defined indices. One of these indices is the probability of average power availability at load bus. This reliability assessment mainly focuses on development of methods to evaluate the probability of average power availability at load buses for a specified system configuration. This chapter discusses the two main techniques called node elimination method and modified minimal cut set method.
Book Synopsis Reliability Assessment of Composite Power Systems Containing Mixed Hydro Thermal Generation by : Jaime Román-Úbeda
Download or read book Reliability Assessment of Composite Power Systems Containing Mixed Hydro Thermal Generation written by Jaime Román-Úbeda and published by . This book was released on 1991 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composite Power System Reliability Modeling and Evaluation by : George Joseph Anders
Download or read book Composite Power System Reliability Modeling and Evaluation written by George Joseph Anders and published by . This book was released on 1980 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composite System Reliability Evaluation Methods by : M. V. F. Pereira
Download or read book Composite System Reliability Evaluation Methods written by M. V. F. Pereira and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reliability Evaluation of Bulk Power Systems Using Analytical and Equivalent Approaches by :
Download or read book Reliability Evaluation of Bulk Power Systems Using Analytical and Equivalent Approaches written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric power systems throughout the world are undergoing considerable changes due to the converging forces of deregulation, technological revolution and evolving customer expectations. Quantitative reliability evaluation plays an important role in the development, design and operation of composite generation and transmission or bulk power systems. This thesis presents research conducted on the development and examination of concepts, techniques and pertinent factors in the reliability evaluation of composite power systems using direct analytical and equivalent analytical approaches. A major difficulty in composite system reliability evaluation using analytical methods is the long computation times required to investigate the extremely large number of possible system outage events in an actual composite system. Only the credible system states are usually investigated. The credible system states are those that make significant contributions to the reliability indices and are usually determined by considering outages up to a certain level. The computation time increases rapidly with increase in system size and the defined outage level. The obtained adequacy indices can often be inaccurate due to limited depth of analysis. Computation times can be significantly reduced when the unchanging portion of a system can be replaced by a reduced equivalent reliability model. Equivalents can prove very useful in the evaluation of large systems where sensitivity studies are to be performed on a portion of the system or when the system is to be interconnected to a further system, which is to be studied in detail. Reliability equivalent concepts also have many other applications in composite system evaluation. This thesis illustrates the foundations, evaluation procedures, pertinent factors, reliability indices and computer program design concepts associated with composite system evaluation using the analytical approach. The thesis presents three advanced algorithms which effectiv.
Book Synopsis A Comprehensive Approach for Bulk Power System Reliability Assessment by : Fang Yang
Download or read book A Comprehensive Approach for Bulk Power System Reliability Assessment written by Fang Yang and published by . This book was released on 2007 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall SCAE methodology is implemented and applied to IEEE reliability test systems, and evaluation results demonstrate the expected features of proposed advanced techniques. Finally, the contributions of this research are summarized and recommendations for future research are proposed.
Book Synopsis Reliability Modeling and Simulation of Composite Power Systems with Renewable Energy Resources and Storage by : Hag-kwen Kim
Download or read book Reliability Modeling and Simulation of Composite Power Systems with Renewable Energy Resources and Storage written by Hag-kwen Kim and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research proposes an efficient reliability modeling and simulation methodology in power systems to include photovoltaic units, wind farms and storage. Energy losses by wake effect in a wind farm are incorporated. Using the wake model, wind shade, shear effect and wind direction are also reflected. For solar modules with titled surface, more accurate hourly photovoltaic power in a specific location is calculated with the physical specifications. There exists a certain level of correlation between renewable energy and load. This work uses clustering algorithms to consider those correlated variables. Different approaches are presented and applied to the composite power system, and compared with different scenarios using reliability analysis and simulation. To verify the results, reliability indices are compared with those from original data. As the penetration of renewables increases, the reliability issues will become more important because of the intermittent and non-dispatchable nature of these sources of power. Storage can provide the ability to regulate these fluctuations. The use of storage is investigated in this research. To determine the operating states and transition times of all turbines, Monte Carlo is used for system simulation in the thesis. A conventional power system from IEEE Reliability Test Systems is used with transmission line capacity, and wind and solar data are from National Climatic Data Center and National Renewal Energy Laboratory. The results show that the proposed technique is effective and efficient in practical applications for reliability analysis. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151020
Book Synopsis Reliability Evaluation of Power Systems by : Riyad M. S. Husain
Download or read book Reliability Evaluation of Power Systems written by Riyad M. S. Husain and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Operational Risk Assessment of Power Systems with Distributed Energy Resources Using Minimal Cut Sets by : Badr Lami
Download or read book Operational Risk Assessment of Power Systems with Distributed Energy Resources Using Minimal Cut Sets written by Badr Lami and published by . This book was released on 2012 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric power system networks are facing major challenges because of the rapid increase in penetration of distributed energy resources (DERs). Reliability evaluation plays an important role in system analysis, design, upgrades, and operations, especially in bulk power systems. The research presented in this thesis focuses on the evaluation of the composite system reliability under steady state conditions, and also goes a step further towards assessing operational risks in real-time system operations using direct probabilistic analysis techniques. The thesis also examines the reliability and risk improvements that are accrued from penetration of DERs into the power system. The challenge of using analytical methods in reliability evaluation of composite power systems is the large computational burden involved, to examine all the possible outage events. This thesis presents the mathematical foundations, evaluation procedures, and reliability indices associated with composite power system reliability evaluation using the minimal cut set calculations. The objective of this approach is to evaluate reliability and risk indices for the system and for every load bus in the system. The performance of the system under outage condition of generators, transmission lines, or both, is examined by conducting an appropriate power flow study. An optimal power flow (OPF) is solved to find the system minimal cut sets which are then used to evaluate reliability and operational risk. DER units are incorporated to investigate the enhancement in system reliability and operational risk. The concepts and developed model are illustrated by application to the 24-bus IEEE Reliability Test System.
