Discrete control of unified power flow controller for stability improvement

被引：17
|
作者：
Krishna, S
Padiyar, KR
机构：
[1] MS Ramaiah Inst Technol, Dept Elect & Elect Engn, Bangalore 560054, Karnataka, India
[2] Indian Inst Sci, Dept Elect Engn, Bangalore 560012, Karnataka, India
来源：
ELECTRIC POWER SYSTEMS RESEARCH | 2005年 / 75卷 / 2-3期
关键词：
maximization (minimization) of power; transient stability control; unified power flow controller;
D O I：
10.1016/j.epsr.2005.03.003
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The emerging flexible ac transmission system (FACTS) controllers are considered to be suitable for transient stability control due to their speed and flexibility. In this paper, a control strategy is developed to achieve maximal improvement in transient stability and damp the rotor oscillations using unified power flow controller (UPFC). The control strategy involves maximization and minimization of power flow in a line. In general, this involves the solution of a constrained optimization problem at each step to determine the voltage and current injected by the UPFC. For the special case of a lossless symmetrical line, when the UPFC is located at the midpoint of the line, analytical solution can be derived. The control strategy can be extended to multimachine system and maximizing and minimizing power flow on a critical line can improve transient stability. The control strategy is evaluated by simulation studies. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：178 / 189
页数：12
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