Topic
Power-flow study
About: Power-flow study is a research topic. Over the lifetime, 8091 publications have been published within this topic receiving 155053 citations. The topic is also known as: load-flow study.
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07 Aug 2002
TL;DR: Linear analysis techniques are analysis tools that provide valuable engineering insights into the dynamic characteristics of a power system that are often not easily obtainable by other means of analysis as mentioned in this paper, and they can be used to acquire a more complete understanding of power system dynamic phenomena.
Abstract: Linear analysis techniques are analysis tools that provide valuable engineering insights into the dynamic characteristics of a power system that are often not easily obtainable by other means of analysis. Their importance is underlined by frequent new developments and applications. One of the objectives of this panel session is to highlight the practical value of linear analysis methods as a means to acquiring a more complete understanding of power system dynamic phenomena.
42 citations
23 Feb 1998
TL;DR: In this paper, the characterization of power system oscillations using the eigenvalues and eigenvectors of the state matrix is detailed. And the design of damping controllers is addressed with the aid of sensitivity measures.
Abstract: This paper reviews eigenvalue-based methods for analysis and control of power system oscillations. The characterization of power system oscillations using the eigenvalues and eigenvectors of the state matrix is detailed. Design of power system damping controllers is addressed with the aid of sensitivity measures. Special techniques to deal with large power systems are also discussed.
42 citations
05 Jan 1999
TL;DR: A new approach is proposed that first determines the reactive power flows using the exact circle equation for the transmission line complex flow, and then determines ATC using active power distribution factors.
Abstract: The paper presents some initial concepts on including reactive power in linear methods for computing Available Transfer Capability (ATC). It proposes a new approach that first determines the reactive power flows using the exact circle equation for the transmission line complex flow, and then determines ATC using active power distribution factors. The ideas are demonstrated on 3-bus and 7-bus systems, and the results are discussed and compared with those obtained without reactive power considerations, and full nonlinear solutions.
41 citations
TL;DR: In this article, a multi-objective fuzzy-based procedure for solving reactive power management in competitive environment is proposed, where the economical aspect aims to minimise the total costs of reactive power purchase from service providers as primary objective function and the technical aspect is taken care of through the secondary objective function that minimizes the total transmission losses.
Abstract: This study proposes a multi-objective fuzzy-based procedure for solving reactive power management in competitive environment. The proposed procedure incorporates both economical and technical aspects of reactive power support. The economical aspect aims to minimise the total costs of reactive power purchase from service providers as primary objective function, whereas the technical aspect is taken care of through the secondary objective function that minimises the total transmission losses. The proposed procedure achieves security constraints such as the bus voltage limits, reactive power capability limits and transmission line reactive transfer limits. The proposed procedure is applied to the west-delta region system as a part of the Egyptian Unified network. The numerical results show that the proposed procedure achieves a minimum real power loss with maximal reactive reserve for power systems for different operating conditions.
41 citations
TL;DR: In this paper, two kinds of performance indices viz. active power performance index and reactive power performance indices are computed for a large power system using a special code written in MATLAB environment, and a novel idea of static voltage stability analysis by incrementing the load in proportion to the original load on load buses along with the most vulnerable line outage using Newton Raphson (N-R) load flow is presented.
41 citations