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电力系统电压控制是维持系统电压水平的重要环节。文中基于模型预测控制理论和方法,利用分解协调法及辅助问题原理构造了分布式电压协调控制模型,实现了电压预测控制模型及结构的分解,使全局集中的优化问题转化为若干个只需本区域系统模型及数据的可分布式协调求解的子优化问题,有效降低了优化问题的求解规模,提高了计算和控制的灵活性及安全性。仿真结果表明,该方法能有效地控制系统电压,防止电压失稳,获得与集中电压预测控制相似的控制效果。
Power system voltage control is to maintain the system voltage level is an important part. Based on the theory and method of model predictive control, a distributed voltage coordinated control model is constructed by decomposing and coordinating method and auxiliary problem principle, and the voltage predictive control model and its structure are decomposed so that the global optimization problem can be transformed into several The sub-optimization problem of distributed coordination of regional system model and data can effectively reduce the solving scale of optimization problem and improve the flexibility and security of calculation and control. The simulation results show that this method can effectively control the system voltage and prevent voltage instability, and obtain the similar control effect as the centralized voltage predictive control.