TCSC系统的自适应minimax干扰抑制控制器设计  

Adaptive minimax disturbance attenuation controller design for TCSC system

作　　者：刘婷[1] 井元伟[1] 姜囡[1] 张嗣瀛[1] 

机构地区：[1]东北大学信息科学与工程学院,沈阳110819

出　　处：《控制与决策》2013年第12期1894-1897,共4页Control and Decision

基　　金：国家自然科学基金项目(61304021);中央高校基本科研业务费专项资金项目(N110404032;N110417005)

摘　　要：针对含有未知外部干扰和不确定参数的非线性晶闸管控制串联补偿器(TCSC)系统,提出一种2增益干扰抑制算法.将minimax方法引入耗散Hamilton系统,消除了不等式假设条件的约束;构造检验函数,推算出系统所能承受的最大干扰程度,降低了传统干扰处理方法的保守性;采用参数映射方法设计自适应律,提高了参数跟踪效率.最后通过机械功率和对地短路故障的仿真结果表明了所提出的控制方案能够有效改善系统的暂态性能.An L2 gain disturbance attenuation algorithm and a parameter estimation method are investigated for nonlinear thyristor controlled series capacitor（TCSC）. The restriction of assumption inequality is eliminated by introducing the minimax method into the dissipative Hamiltonian system. With the test function formed, the worst-case disturbance can be calculated, accordingly the conservativeness brought by conventional disturbance treatment is significantly reduced Meanwhile, the parameter projection mechanism is used to design adaptive law to enhance the efficiency of the parameter tracking error convergence. By considering the mechanical power perturbation and short-circuit ground fault, simulation results show that the proposed scheme can effectively improve the transient performance of the system.

关 键 词：晶闸管控制串联补偿器 耗散Hamilton系统 L2增益干扰抑制 MINIMAX 参数映射 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]