考虑分布式电源接入与综合运行成本的配电网无功优化

Reactive power optimization for distribution system with distribution generators considering synthetic operation cost

为解决考虑分布式电源接入的配电网的无功调节问题,在分析分布式电源和负荷特性的基础上,以综合运行成本最小为目标,即由峰谷分时电价决定的线损费用和无功补偿设备费用之和最小建立配电网动态无功优化数学模型,并采用改进的蝴蝶优化算法求解。使用改进的IEEE 33节点进行配电系统仿真,验证了无功优化模型及其求解算法的有效性和优越性。研究结论为配电网无功优化策略提供了理论参考。

In order to solve the problem of reactive power regulation of distribution network considering distributed generation access,based on the analysis of distributed generation and load characteristics,a mathematical model of dynamic reactive power optimization of distribution network is established with the minimum comprehensive operation cost,that is,the minimum sum of line loss cost and reactive power compensation equipment cost determined by peak-valley time-of-use electricity price,and the improved butterfly optimization algorithm is used to solve the problem.By using the improved IEEE 33-bus distribution system simulation,the effectiveness and superiority of the reactive power optimization model and its solution algorithm are verified.The research conclusion provides a theoretical reference for the reactive power optimization strategy of distribution network.