On control actions effects by using QV curves

Marujo, Diogo and De Souza, A. C.Zambroni and Lopes, B. Isaias Lima and Santos, Marcos V. and Lo, Kwok L. (2015) On control actions effects by using QV curves. IEEE Transactions on Power Systems, 30 (3). 1298 - 1305. ISSN 0885-8950

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Abstract

This paper proposes some methods for the purpose of reactive power and voltage control. Real cases show them as potentially harmful for power systems, since dynamic instability and voltage collapse may appear. Control actions like tap changers, active and reactive power redispatch may help the system voltage stability, but may present reverse results for some operating conditions. This paper is firstly devoted to identify and classify an operating point under the voltage stability point of view. Following this classification, an index to assess the robustness of a bus is proposed. The studies are carried out with the help of the QV curves. Methods to change the region of operation of a bus are then discussed with the help of a real Brazilian system with all limits considered.

Author(s):Marujo, Diogo, De Souza, A. C.Zambroni, Lopes, B. Isaias Lima, Santos, Marcos V. and Lo, Kwok L.
Item type:Article
ID code:62998
Keywords:power flow QV curves, regions of operation, sensitivity analysis, voltage collapse, Electrical engineering. Electronics Nuclear engineering, Energy Engineering and Power Technology, Electrical and Electronic Engineering
Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
Department:Faculty of Engineering
Depositing user: Pure Administrator
Date deposited:23 Jan 2018 13:53
Last modified:16 Jan 2020 07:02
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URI:https://strathprints.strath.ac.uk/id/eprint/62998
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