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双向互动省地协调电压控制模式符合智能电网的要求,具有广阔的应用前景。在该控制模式中,省、地两侧需要将各自的运行信息浓缩为协调约束(包括能力约束和期望约束)并提交给协调层供其决策。文中基于在线自适应分区结果,构造生成省调侧协调约束的优化模型;基于拓扑分区结果,构造生成地调侧协调约束的优化模型。省、地两侧通过实时求解上述优化模型得到各自的协调约束。基于全局潮流算法实现了省、地间电网的联合仿真协调控制系统,并给出仿真结果。文中方法已成功应用于江苏电网省地协调无功电压控制系统。仿真算例及现场运行结果均证明了该方法的有效性。
Two-way interaction Provincial coordination of voltage control mode in line with the requirements of smart grid has broad application prospects. In this control mode, provincial and local governments need to condense their operational information into coordination constraints (including capacity constraints and expected constraints) and submit them to the coordination layer for decision-making. Based on the results of on-line adaptive partitioning, an optimization model for generating provincial coordinating constraints is constructed. Based on the topological partitioning results, an optimized model of coordinating constraints of generated side is constructed. The provincial and local sides get their own coordination constraints by solving these optimization models in real time. Based on the global power flow algorithm, the co-simulation coordination control system of provincial and terrestrial power grids is realized and the simulation results are given. The method has been successfully applied to Jiangsu provincial power grid coordinated reactive power voltage control system. Simulation results and field operation results show the effectiveness of this method.