STATCOM无功电流的灰色预测控制  

Grey Prediction Control of STATCOM Reactive Current

作　　者：文维娟[1] 孙玉坤[1] 嵇小辅[1] 白雪飞[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《电气自动化》2008年第1期9-11,33,共4页Electrical Automation

基　　金：江苏省高新科技项目BG2004024

摘　　要：针对模型参数变化和噪声干扰的 STATCOM 单机无穷大系统,提出了一种无功电流灰色预测控制方案。根据 STATCOM 装置级非线性数学模型,建立了系统无功补偿电流的控制模型,采用 GM(1,1)模型预测无功电流和系统灰量,将无功电流灰色预测控制引入到 PID 控制中。运用灰色系统理论进行预报,具有不必完全知道被控对象结构、参数和特性的优点,这对于像 STATCOM 这样大型非线性系统的预测控制实现非常有利。仿真结果表明,该方法比传统的 PID 控制具有更强的跟踪能力和鲁棒性。According to highly inherent nonlinear STATCOM based on single infinite system which is disturbed and has variable parameters, controlling means of grey prediction is presented. Reactive current and grey parts are predicted on the basis of GM （ 1, 1 ） model. In the light of mathematical mode of STATCOM, control model of reactive current compensation is established and then reactive current is controlled by grey prediction design. There are many advantages such as no completely explicit structure, parameter, character and so on when apply grey theory to prediction. Therefore it is very favorable to realize prediction control of large-scale system like STATCOM. The simulation results show that there are much stronger controllability and robustness against external disturbance with this method than with traditional PID control design.

关 键 词：STATCOM GM(1 1)模型 灰色预测控制 无功电流控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TN322.8[自动化与计算机技术—控制科学与工程]