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针对含有未知参数的励磁系统 ,提出了一种非线性自适应控制设计方法。通过递推方法得到了自适应控制策略 ,而且在控制策略中包含了对未知参数的动态估计 ,最后获得了多机系统的非线性自适应分散励磁控制策略的一般表达式。在控制策略中所有的变量都是可量测的 ,而且控制量只与本机组的状态量有关 ,与其他机组的状态量和输电网络的参数无关 ,因此控制策略具有分散性和适应性。在一个 6机系统上的仿真结果表明了非线性自适应控制器的有效性
Aiming at the excitation system with unknown parameters, a nonlinear adaptive control design method is proposed. The adaptive control strategy is obtained through the recursion method, and the dynamic estimation of unknown parameters is included in the control strategy. Finally, the general expression of nonlinear adaptive decentralized excitation control strategy for multi-machine system is obtained. All the variables in the control strategy are measurable, and the control quantity is only related to the state quantity of this unit, and has nothing to do with the state quantities of other units and the parameters of the transmission network. Therefore, the control strategy is decentralized and adaptive. The simulation results on a 6-machine system show the effectiveness of the nonlinear adaptive controller