Download or read book A Method for the Transient Stability Enhancement of a Power System Using Feedback Control of a Synchronous Generator written by Haren Almaula and published by . This book was released on 1979 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Power Systems Transient Stability Using Optimal Control of Network Parameters written by Abdelrahman Tawfig Hamad and published by . This book was released on 1975 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Small signal Stability Transient Stability and Voltage Regulation Enhancement of Power Systems with Distributed Renewable Energy Resources written by Adirak Kanchanaharuthai and published by . This book was released on 2012 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environmental and economic impact of fossil fuel generating plants has resulted in the need to find more efficient and clean sources of electricity power generation. As an alternative, promising power generation options such as renewable energy sources, especially wind energy, are receiving increased interest. This dissertation addresses some important problems in power system operations (stability and power quality) when renewable energy resources (generation and storage) are integrated into the conventional power system. In particular, the use of energy storage (STATCOM/Battery) to enhance the small-signal stability, transient stability, and voltage regulation of an electrical power system with renewable power generation is investigated as follows. 1) A linearized model of the nonlinear power system in the region of a steady-state operating point is used in conjunction with an LMI-based control design method, including D-stability, to achieve small-signal angle and frequency stability, voltage regulation, when the system is perturbed by changes in mechanical power inputs to the synchronous generators in the system. 2) A nonlinear model of the power systems with energy storage is used with an Interconnection and Damping Assignment-Passivity-Based Control design (IDA-PBC) framework to achieve transient power angle stability along with frequency and voltage regulation after the occurrence of a large disturbance (a symmetrical three-phase short circuit transmission line fault). 3) Using the combination of the IDA-PBC control law and a reduced-order nonlinear observer, voltage regulation and system stability enhancement are simultaneously accomplished following both temporary and permanent faults. To illustrate the effectiveness of the STATCOM/Battery to enhance small-signal and transient stability, the LMI-based controller design with D-stability and IDA-PBC controller design are validated using the following simulation studies: (1) a single machine infinite bus (SMIB) (2) a two-machine (synchronous generator and doubly-fed induction generator) connected to an infinite bus. For the small-signal case, simulation results show that the proposed controller can simultaneously achieve frequency and voltage regulation along with improved transient performance. For the large-signal case, the results show that the proposed controller provides improved critical clearing times (CCTs) and an enlarged domain of attraction (DOA) along with improved frequency and voltage regulation.
Download or read book Transient Stability Analysis for Power System Networks with Asynchronous Generation written by Prem Kethavath and published by . This book was released on 2015 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attention is increasing on transient stability and secure mode of operation for power systems with asynchronous generation. This is due to asynchronous mode of generation like wind farms, increasing in capacity and displacing existing high inertia synchronous generation. Participation of wind farms, which are primarily inertia decoupled during transient disturbance, will become necessary to comprehensively analyse framework like energy function and coherency based reduction methods. This thesis investigates the impact of reduced system inertia due to asynchronous generation, on transient stability of power systems. This thesis proposes an energy function approach to assess power system transient stability impacts following increased penetration of asynchronous generation plants. The asynchronous wind farm generation is considered as an equivalent conventional synchronous generator with negligible inertia. Assessment has been carried out on single machine infinite system and three machine nine bus test system to compute critical energy and critical fault clearing time, from first principles, using potential energy boundary surface method. A new representation of plotting contours of critical clearing times on inertia space has been developed. This enables estimation of additional inertia required for a system due to inertia reduction from asynchronous generators. The results of the simulation and new graphical method confirms that transient stability margin of the system is impacted with increased penetration of asynchronous generation. This thesis also investigates coherency based analysis technique for network reduction to carry out transient stability analysis for a large power system network that has wind penetration. Identification of coherent groups targets to obtain simplified dynamic equivalent of system by aggregation of coherent generators and replacing it with an equivalent generator. The use of this equivalence can transform a large power system into a reduced model, localized into a small internal area containing the disturbance which impact stability. The New England, 39 bus 10 machine system has been used to demonstrate the methodology. Contingencies are applied with and without wind farm i.e., by replacing few synchronous generators with wind farm of similar capacity. This thesis also develops transient stability enhancement method for networks with asynchronous generation. When a machine inertia is reduced its first swing stability can be enhanced by line series compensation and also multi-swing stability using bang-bang control on series compensation. Compensation values and the lines that can participate in series compensation during contingencies are found.
Download or read book Energy and Power Systems written by Cornelius T. Leondes and published by CRC Press. This book was released on 2000-08-08 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical committee on mechatronics formed by the International Federation for the Theory of Machines and Mechanisms, in Prague, Czech Republic, adopted the following definition for the term: Mechatronics is the synergistic combination of precision mechanical engineering, electronic control and systems thinking in the design products and manufa
Download or read book Power System Transient Stability Enhancement written by Sushama Wagh and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of the book discusses the online controller coordination requirements in WAN (wide-area network) which gives motivation to the new innovative schemes to predict future system status by a look-ahead approach to maintain system transient stability by introducing proper thyristor controlled series compensation (TCSC) in the post-disturbance scenario. The important feature of this scheme is in giving a general feasible approach by considering various time delays such as the communication channel delays and computation delays which are significant in geographically wide-spread power system network, WAN. The second part of the book develops the strategy for an estimation of the internal state variables, of a synchronous generator, based on available measurements. With the reducing cost of phasor measurement units (PMUs) and wide-area communication network, the research develops a new estimation strategy to investigate the actual values of internal state variables for accurate comment on power system transient stability in any operating conditions (steady state or transient) using available limited sets of measurements.
Download or read book Stability Control and Reliable Performance of Wind Turbines written by Kenneth Eloghene Okedu and published by BoD – Books on Demand. This book was released on 2018-10-10 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for academics and engineers working in universities, research institutes, and industry sectors wishing to acquire new information and enhance their knowledge of the current trends in wind turbine technology. Readers will gain new ideas and special experience with in-depth information about modeling, stability control, assessment, reliability, and future prospects of wind turbines. This book contains a number of problems and solutions that can be integrated into larger research findings and projects. The book enhances studies concerning the state of the art of wind turbines, modeling and intelligent control of wind turbines, power quality of wind turbines, robust controllers for wind turbines in cold weather, etc. The book also looks at recent developments in wind turbine supporting structures, noise reduction estimation methods, reliability and prospects of wind turbines, etc. As I enjoyed preparing this book, I am sure that it will be valuable for a large sector of readers.
Download or read book IEE Proceedings written by Institution of Electrical Engineers and published by . This book was released on 1999 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes IEE proceedings parts A through I
Download or read book Advanced Technologies for Planning and Operation of Prosumer Energy Systems volume III written by Bin Zhou and published by Frontiers Media SA. This book was released on 2024-07-30 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prosumers, such as energy storage, smart home, and microgrids, are the consumers who also produce and share surplus energy with other users. With capabilities of flexibly managing the generation, storage and consumption of energy in a simultaneous manner, prosumers can help improve the operation efficiency of smart grid. Due to the rapid expansion of prosumer clusters, the planning and operation issues of prosumer energy systems have been increasingly raised. Aspects including energy infrastructure design, energy management, system stability, etc., are urgently required to be addressed while taking full advantage of prosumers' capabilities. However, up to date, the research on prosumers has not drawn sufficient attention. This proposal presents the need to introduce a Research Topic on prosumer energy systems in Frontiers in Energy Research. We believe this Research Topic can promote the research on advanced planning and operation technologies of prosumer energy systems and contribute to the carbon neutrality for a sustainable society.
Download or read book Proceedings of the Tenth Power Systems Computation Conference written by Graz Austria and published by Elsevier. This book was released on 2016-06-06 with total page 1281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Tenth Power Systems Computation Conference
Download or read book Robust Control for Grid Voltage Stability High Penetration of Renewable Energy written by Jahangir Hossain and published by Springer. This book was released on 2014-07-07 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book makes the area of integration of renewable energy into the existing electricity grid accessible to engineers and researchers. This is a self-contained text which has models of power system devices and control theory necessary to understand and tune controllers in use currently. The new research in renewable energy integration is put into perspective by comparing the change in the system dynamics as compared to the traditional electricity grid. The emergence of the voltage stability problem is motivated by extensive examples. Various methods to mitigate this problem are discussed bringing out their merits clearly. As a solution to the voltage stability problem, the book covers the use of FACTS devices and basic control methods. An important contribution of this book is to introduce advanced control methods for voltage stability. It covers the application of output feedback methods with a special emphasis on how to bound modelling uncertainties and the use of robust control theory to design controllers for practical power systems. Special emphasis is given to designing controllers for FACTS devices to improve low-voltage ride-through capability of induction generators. As generally PV is connected in low voltage distribution area, this book also provides a systematic control design for the PV unit in distribution systems. The theory is amply illustrated with large IEEE Test systems with multiple generators and dynamic load. Controllers are designed using Matlab and tested using full system models in PSSE.
Download or read book Proceedings of the IEEE International Conference on Control Applications written by and published by . This book was released on 1996 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of Direct Methods for Power System Transient Stability Analysis written by Jiann-tarng Chen and published by . This book was released on 1993 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transient Stability of Power Systems written by M. Pavella and published by John Wiley & Sons. This book was released on 1994-08-08 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: An in-depth treatment of the transient stability problem, its physical description and formulation. Discusses methods for transient stability analysis, sensitivity assessment and control. Considers conventional and non-conventional techniques including direct and artificial intelligence, system theory, load modeling, evaluation of machine parameters, saturation effects and pattern recognition approaches. Features practical examples and simulation results.
Download or read book Power System Dynamics and Stability written by Peter W. Sauer and published by . This book was released on 1998 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: For a one-semester senior or beginning graduate level course in power system dynamics. This text begins with the fundamental laws for basic devices and systems in a mathematical modeling context. It includes systematic derivations of standard synchronous machine models with their fundamental controls. These individual models are interconnected for system analysis and simulation. Singular perturbation is used to derive and explain reduced-order models.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
