In this letter, the expectation-maximization-based secondary voltage control scheme is proposed to achieve the robust secondary voltage control (SVC) in the presence of stochastic measurement error under wide-area measurement system (WAMS). The proposed control scheme is implemented iteratively in the two steps, expectation and maximization steps. Since stochastic measurement error, following arbitrary parametric or nonparametric probability distribution, can be considered in the proposed control scheme, the proposed work can provide a robust and generalized solution for SVC in the presence of stochastic measurement error. Case studies on IEEE 300-bus test system are presented to verify the accuracy of the proposed control scheme.

中文翻译：

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考虑随机测量误差的鲁棒期望最大化次级电压控制方案


在这封信中，提出了基于期望最大化的次级电压控制方案，以在广域测量系统（WAMS）下存在随机测量误差的情况下实现稳健的次级电压控制（SVC）。所提出的控制方案在期望和最大化这两个步骤中迭代实现。由于在所提出的控制方案中可以考虑遵循任意参数或非参数概率分布的随机测量误差，因此所提出的工作可以在存在随机测量误差的情况下为 SVC 提供鲁棒且通用的解决方案。通过 IEEE 300 总线测试系统的案例研究来验证所提出的控制方案的准确性。