考虑需求响应及网架优化的含分布式电源的配网潮流调度优化

Optimization of Power Flow Scheduling in Distribution Networks with Distributed Power Considering Demand Response and Network Structure Optimization

风电、光伏等分布式电源并网为配网潮流的安全经济运行带来了巨大的挑战,为提高配网运行的安全经济性,提出了一种考虑需求响应及网架优化的配网潮流调度优化模型。首先,在配电网调度模型中引入了需求响应对配电网的用电负荷进行调整,使得用电负荷能够更加适应分布式电源出力情况;紧接着,利用“非同调”现象作为理论基础对电网结构进行优化,能够释放网架的功率传输能力;然后,在系统配网模型中引入储能系统,缓解分布式电源的波动情况;通过源-网-荷-储多角度协同作用,提升配网潮流运行的经济性。以IEEE24节点为例进行仿真分析,利用MATLAB软件调用Cplex求解器对所构建的模型进行求解,仿真结果表明:所提模型能够有效地提升配网潮流的经济性,降低系统的运行成本。

The grid connection of distributed power sources such as wind power and photovoltaic brings huge challenges to the safe and economic operation of distribution network trends.In order to improve the safety and economy of distribution network operation,a distribution network trend scheduling optimization model considering demand response and network structure optimization is proposed.Firstly,demand response is introduced into the distribution network scheduling model to adjust the electricity load of the distribution network,making the electricity load more adaptable to the output situation of distributed power sources.Subsequently,using the “non homology” phenomenon as a theoretical basis to optimize the power grid structure can release the power transmission capacity of the grid.Then,an energy storage system is introduced into the system distribution network model to alleviate the fluctuation of distributed power sources.The economic efficiency of distribution network power flow operation is improved through the synergistic effect of source network load storage from multiple perspectives.IEEE24 nodes are taken as an example for simulation analysis,and the Cplex solver is called using MATLAB software to solve the constructed model.The simulation results show that the model proposed can effectively improve the economy of distribution network power flow and reduce the operating cost of the system.