统一潮流控制器功率解耦控制策略的研究

针对统一潮流控制器（UPFC）在调节电力线路潮流过程中存在的有功和无功功率相互影响等问题，通过分析UPFC数学模型，从UPFC实现传输线路潮流调节作用的角度出发，提出了并联变流器稳压控制、电压电流双闭环控制方法和串联变流器电压、电流、功率三环解耦控制策略，实现了UPFC直流电容电压恒定、输入端交流母线电压稳定和独立调节有功、无功潮流的功能。通过搭建UPFC并网仿真模型，验证了该控制策略在电力系统潮流调节中的有效性和可行性。...

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Bibliographic Details
Published in电测与仪表 Vol. 51; no. 7; pp. 39 - 44
Main Author 赵峰 赵雨欣 阎宏
Format Journal Article
LanguageChinese
Published 兰州交通大学 自动化与电气工程学院,兰州,730070 2014
Subjects
无功补偿
潮流控制
统一潮流控制器
解耦控制
power flow control
统一潮流控制器
解耦控制
decoupling control
reactive power compensation
潮流控制
无功补偿
UPFC
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ISSN1001-1390

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Summary:针对统一潮流控制器（UPFC）在调节电力线路潮流过程中存在的有功和无功功率相互影响等问题，通过分析UPFC数学模型，从UPFC实现传输线路潮流调节作用的角度出发，提出了并联变流器稳压控制、电压电流双闭环控制方法和串联变流器电压、电流、功率三环解耦控制策略，实现了UPFC直流电容电压恒定、输入端交流母线电压稳定和独立调节有功、无功潮流的功能。通过搭建UPFC并网仿真模型，验证了该控制策略在电力系统潮流调节中的有效性和可行性。
Bibliography:ZHAO Feng, ZHAO Yu-xin, YAN Hong （School of Automation＆Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China）
Active and reactive powers interact in the process of power line flow regulation for unified power flow con- troller （UPFC）. To solve the problem, the mathematical model of UPFC is analyzed, and the voltage control and dual closed-loop control method of voltage and current to the shunt converter, as well as three loop decoupling control strat- egy of voltage, current, power to the series converter are proposed from the perspective of transmission line flow regu- lation with UPFC. These controls realize the capabilities of constant capacitor voltage, voltage stability of AC bus and independent active and reactive power flow regulation to UPFC. A grid-connected simulation model of UPFC is estab- lished to verify the effectiveness and feasibility of the control strategy in power flow regulation.
23-1202/TH
UPFC, power flow control, decoupling control, reactive power compensation
ISSN:1001-1390