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电力系统中许多控制器的参数众多,所提出的可区分性是指在参数的优化整定过程中,能否唯一确定某个参数,也即最优解的唯一性.由于在大多数情况下,无法获得优化目标与控制器参数之间的解析关系,这时要靠解析方法分析可区分性就非常困难.为此,提出一种基于轨迹灵敏度的可区分性数值分析方法,揭示了控制器参数的可区分性与轨迹灵敏度之间的内在联系.提出通过分析参数灵敏度的大小得到影响控制器性能的主导参数,通过分析灵敏度曲线的相位确定不可区分的控制器参数.以双馈异步风力发电机组控制器为背景进行应用研究,算例结果验证了上述方法的有效性.
Many controllers in the power system have many parameters, and the distinguishability proposed is whether the uniqueness of a certain parameter, that is, the optimal solution, can be uniquely determined in the process of optimal tuning of the parameters. Since in most cases, It is very difficult to analyze the distinguishability by means of analytic method.Therefore, a discriminable numerical analysis method based on trajectory sensitivity is proposed, which reveals that the controller parameters The distinction between the sensitivity of the trajectory and the intrinsic relationship between the proposed sensitivity of the parameters obtained by the size of the dominant performance parameters of the controller by analyzing the sensitivity of the phase curve to determine the indistinguishable controller parameters to double-fed asynchronous wind turbine The controller is applied in the background, and the result of the example verifies the validity of the above method.