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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.
Aiming at the nonlinear thyristor controlled series compensator (TCSC) system with unknown external disturbances and uncertain parameters, a two-gain interference suppression algorithm is proposed. The minimax method is introduced into the dissipative Hamiltonian system to eliminate the constraint of the inequality assumption. Function to calculate the maximum degree of interference that the system can tolerate and reduce the conservativeness of the traditional interference processing methods.The adaptive law is designed using the parameter mapping method to improve the parameter tracking efficiency.Finally through the simulation results of mechanical power and short to ground fault It shows that the proposed control scheme can effectively improve the transient performance of the system.