针对高比例分布式光伏接入配电网，传统集中式控制难以适应高维度环境下电压控制问题，文章提出了一种考虑网络分区的含高比例分布式光伏配电网电压协调控制策略。首先，根据分区函数算法将配电网划分为集中拓扑和局部拓扑;其次，针对集中拓扑，以电压偏差与网损之和最小为目标函数，建立基于二阶锥规划(Second Order Cone Programming，SOCP)的配电网电压集中控制模型，针对局部拓扑，以节点电压偏差最小为目标函数，建立马尔科夫决策过程参与的电压精细化控制模型;再次，分别采用CPLEX求解器和深度确定性梯度算法对区域模型进行有效求解;最后，将该控制策略应用于某实际 35 kV/10 kV的配电网中。仿真实验表明，文章所提策略具有良好的控制效果，保证配电网安全运行的同时提高了光伏渗透率。
Voltage coordinated control of distribution network with high proportion distribution photovoltaic considering network partition
Due to the high proportion of distributed photovoltaic access to the distribution network,the traditional centralized control is difficult to adapt to the voltage control problem in high-dimensional environment.Therefore,this paper proposes a voltage coordinated control of photovoltaic distribution network with high proportion distribution considering network partition.Firstly,the distribution network is divided into centralized topology and local topology according to the partition function algorithm.Secondly,aiming at the centralized topology,the voltage centralized control model of distribution network based on second order cone programming(SOCP)is established with the minimum sum of voltage deviation and network loss as the objective function.Aiming at the local topology,the minimum node voltage deviation is taken as the objective function,and the voltage fine control model with Markov decision process is established.Then,the CPLEX solver and the deep deterministic gradient algorithm are used to solve the regional model effectively.Finally,the method is applied to an actual 35 kV/10 kV distribution network.The simulation results show that the proposed method has a good control effect,which ensures the safe operation of the distribution network and improves the photovoltaic penetration rate.
distribution networkdistribution photovoltaicvoltage coordinated controlnetwork partition
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