计及分布式电源输出特性的有源配电网重构方法

针对含分布式电源的配电网重构算法将分布式电源等效为恒功率因数输出模型,未考虑节点电压变化对分布式电源无功出力影响的问题,提出一种考虑分布式电源不同输出特性的配网重构方法。首先对分布式电源进行分类并建立等效模型,该模型充分考虑了节点电压对分布式电源无功出力的影响,能够根据节点电压确定不同属性的分布式电源无功出力。再使用自适应烟花算法对配网重构进行寻优求解,对重构后的系统网损和节点电压进行对比分析。含分布式电源的IEEE 33节点典型测试系统的仿真结果对比验证了所提模型的有效性和真实性。

Active Distribution Network Reconfiguration Considering the Output Characteristics of Distributed Generation

In the traditional distribution network reconfiguration method with distributed generation, distributed generation is equivalent to a constant power factor output model, which does not take into account the influence of node voltage variation on reactive power output of distributed generation. This paper put forward a method of distribution network reconfiguration with distributed generation considering the different output characteristics of distributed generation. First, distributed generation is classified and an equivalent model is established. The model fully considers the influence of node voltage on reactive power output of distributed generation, and it can identify reactive power output of distributed generation based on node voltage. Then the adaptive fireworks algorithm is used to optimize the distribution network reconfiguration, and the network loss and the node voltage of the reconstructed system are compared and analyzed. The simulation results of a typical IEEE 33 node test system with distributed generation verified the validity and authenticity of the proposed model.