一种优化系统动态性能的新型SSSC控制策略  

A Novel Static Synchronous Series Compensator Control Strategy for Improving the Dynamic Performance of Power Systems

作　　者：吴杰康[1] 蒋程[2] 张建华[2] 尚敬福[2] 朱星阳[2] 

机构地区：[1]广东工业大学电气工程学院广州510006 [2]华北电力大学电气与电子工程学院北京102206

出　　处：《电工技术学报》2011年第12期156-161,共6页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(50767001);高等学校博士学科点专项科研基金(20094501110002);广西自然科学基金(2011jjA60017)资助项目

摘　　要：静止同步串联补偿器(SSSC)具有快速潮流控制的能力,选择好的控制策略能够充分发挥SSSC的作用。本文计及逆变器的损耗及直流侧电容电压的动态调节过程,在两相同步旋转dq坐标系下建立了SSSC的数学模型。在分析此模型的基础上提出了基于部分状态反馈的dq轴解耦策略,同时还提出了直流侧电容电压和线路有功功率的控制方法。在Matlab/Simulink动态仿真环境中搭建了SSSC的数学模型及控制系统的仿真模型,并基于该模型对直流侧电容电压调节过程、线路传输有功功率的调节过程和SSSC的暂态过程进行了仿真,仿真结果表明该控制策略的有效性和适用性。Static synchronous series compensator （SSSC） is capable of fast power flow control, and choosing advanced control strategy is crucial for achieving the function. In this paper the mathematical model is presented for SSSC in a synchronously rotating d-q frame by using Park＇s transformation, in which the inverter loss and the dynamic regulating process of the DC link capacitor voltage are considered. And the decoupling strategy for d-q axes based on partial states feedback is proposed, meanwhile the control strategy for transimssion line active power and DC link capacitor voltage are proposed. The mathematical model of the SSSC and the simulation model of control system are built in the Matlab/Simulink dynamic simulation platform. A studying example for simulating the regulating process of transmission line active power and DC link capacitor voltage and the transient stabilization is carried out to illustrate the flexibility, adaptability and feasibility of the proposed method and models.

关 键 词：静止同步串联补偿器 线路有功功率 dq轴解耦 暂态稳定性 

分 类 号：TM712[电气工程—电力系统及自动化]