具有代数约束的STATCOM与凸极式发电机励磁协调控制研究  

Coordinated Control Study of STATCOM With Algebraic Constraints and Salient-pole Generators Excitation of Power Systems

作　　者：李世芳[1] 王杰[2] 

机构地区：[1]宁夏大学电气信息学院,宁夏回族自治区银川市750021 [2]上海交通大学电子信息与电气工程学院,上海市闵行区200240

出　　处：《中国电机工程学报》2011年第13期26-32,共7页Proceedings of the CSEE

基　　金：国家自然科学基金项目(61074042;60674035)~~

摘　　要：主要研究含有静态同步补偿器装置的电力系统协调控制方法,以单机无穷大(single machine infinite bus,SMIB)系统为例,采用凸极式发电机(xd′≠xq)模型,并利用几何反馈线性化方法,进行励磁与静止同步补偿器(staticsynchronous compensator,STATCOM)的协调控制。在所研究的系统模型中,假定STATCOM输出的电压向量方向与无穷大系统电压向量的夹角为任意的δS,建立凸极式发电机与STATCOM所组成的具有约束代数方程的非线性系统模型,弥补了凸极式发电机励磁与STATCOM协调控制技术研究的不足。克服了以往的STATCOM模型需要假设STATCOM输出电压向量在d轴的强约束条件,使得所研究的STATCOM模型与控制方法更加符合实际的工程应用。仿真结果表明了所提出的模型和协调控制方法的合理性和有效性。A coordinated control method for power system with a static synchronous compensator （STATCOM） is proposed in this paper. As an example, a single machine infinite bus （SMIB） system is studied using a salient-pole generator （Х＇d≠ Хq） model. Furthermore, the geometric feedback linearization method is introduced to achieve the coordinated control of generator excitation and the STATCOM. This angle between the voltage vector of output of the STATCOM and the voltage vector of an infinite system is assumed as arbitrary in the studied system model, the model of nonlinear system with constraints algebraic equations composed by salient pole generator and STATCOM is established which makes up the lack of the coordinated control technology of the salient pole generator and STATCOM, and overcomes the previous strong constraints conditions that the output voltage vector of STATCOM must be set in the d-axis, thus the STATCOM model and control method presented in this paper are more to meet the practical engineering applications. The simulation results indicate that the model and the control scheme presented in this paper are reasonable and effective.

关 键 词：电力系统 凸极式发电机 静止同步补偿器 协调控制 几何反馈线性化 代数约束 

分 类 号：TM76[电气工程—电力系统及自动化]