Use of Voltage Stability Assessment and Transient Stability Assessment Tools in Grid Operations


Book Description

This book brings together real-world accounts of using voltage stability assessment (VSA) and transient stability assessment (TSA) tools for grid management. Chapters are written by leading experts in the field who have used these tools to manage their grids and can provide readers with a unique and international perspective. Case studies and success stories are presented by those who have used these tools in the field, making this book a useful reference for different utilities worldwide that are looking into implementing these tools, as well as students and practicing engineers who are interested in learning the real-time applications of VSA and TSA for grid operation.







Voltage Stability of Electric Power Systems


Book Description

Voltage Stability is a relatively recent and challenging problem in Power Systems Engineering. It is gaining in importance as the trend of operating power systems closer to their limits continues to increase. Voltage Stability of Electric Power Systems presents a clear description of voltage instability and collapse phenomena. It proposes a uniform and coherent theoretical framework for analysis and covers state-of-the-art methods. The book describes practical methods that can be used for voltage security assessment and offers a variety of examples.




Voltage Stability in Electrical Power Systems


Book Description

Explore critical topics and the latest research in voltage stability in electric power systems In Voltage Stability in Electrical Power Systems: Concepts, Assessment and Methods for Improvement, two distinguished electrical engineers deliver a comprehensive discussion of voltage stability analysis in electrical power systems. The book discusses the concept of voltage stability, effective factors and devices, and suitable system modeling, offering readers an authoritative overview of the subject and strategies to prevent instability in power systems. The authors explore critical topics such as load and load tap changer (LTC) transformer modeling and the impact of distributed generation and transmission-distribution interactions on voltage stability. They also present practical methods to improve voltage stability. Readers will also find: Thorough introductions to voltage stability, effective factors and devices, and suitable systems modeling Comprehensive explorations of voltage stability assessment methods, including the continuation power flow methods and PV-curve fitting In-depth explorations of methods of improving voltage stability, including preventive and corrective methods Fulsome presentations of measurement-based indices and model-based indices of stability assessment Perfect for engineers and other professionals designing electric power systems, Voltage Stability in Electrical Power Systems: Concepts, Assessment and Methods for Improvement will also earn a place in the libraries of graduate and senior undergraduate students with an interest in power systems.




Computational Techniques for Voltage Stability Assessment and Control


Book Description

This book provides comprehensive details on continuation power flow, and reviews concepts in bifurcation theory and continuation methods for assessing power system voltage stability. The author proposes a uniform framework that provides computational approaches for both short-term and long-term voltage stability phenomena. Readers can access the author’s web-based simulation tools, which are based on the advice in this book, to simulate tests of systems up to the size of 200 busses.







An AI-based On-line Voltage Stability Assessment


Book Description

The load margin differs with loading patterns and contingencies. The on-line tool needs to address this variation. Hence, a skeletal framework of the development of on-line tool for voltage stability problem is also given. The on-line tool is made comprehensive by involving the loading scenarios and credible contingencies in training. Hence, the proposed tool predicts the voltage stability margin of any given operating condition with a scenario or contingency.




Steady-state voltage stability assessment method


Book Description

Atualmente os sistemas elétricos altamente carregados estão enfrentando um crescente risco de estabilidade de tensão na medida que restrições ambientais e incertezas econômicas limitam o investimento em novas linhas de transmissão. Uma revisão dos problemas ocorridos em vários países indicam claramente que o problema de estabilidade de tensão é real e que o pior ainda está por vir [1]. Portanto existe a necessidade do desenvolvimento de ferramentas analíticas capazes de prever o colapso de tensão em redes complexas. Estas ferramentas devem ser capazes de quantificar com precisão as margens de estabilidade e os limites de transferência de potência, identificando os pontos fracos e as áreas susceptíveis á estabilidade de tensão. Um método para determinação das condições de estabilidade local de tensão é mostrado. A eficiência computacional desta ferramenta analítica é enfatizada em estudos de análise de cotingência. Estudos comparativos mostram a influência do modelo da carga estática, dos equivalentes de redes e da representação dos limites de geração ou absorção de potência reativa a partir da curva de capabilidade da máquina síncrona, no índice que avalia a estabilidade local de tensão. Um estudo sobre o determinante da matriz que serve como índice que avalia a estabilidade local de tensão. Neste trabalho são propostos novos estudos para dar continuidade aos avanços obtidos até o momento.