摘要
针对含分布式电源的配电网安全经济运行问题,提出了分布式电源主动参与无功优化控制的策略。通过潮流计算,以系统网损和电压偏移量的综合最优为目标函数,利用基于最优保存策略的改进遗传算法,结合实时用户负荷情况,动态确定参与调度的分布式电源出力大小。在MATLAB平台上采用IEEE-33节点母线系统进行仿真,仿真结果表明,该方案有效改善了系统网损和电压偏移,消除了节点电压越限风险,相对于传统的电容器组无功补偿,不仅减少了电容器的投切容量,而且可实现连续平滑调节,整体上具备更好的控制效果,验证了控制方案的可行性和有效性。
The strategy of distributed generation participating reactive power optimization actively is proposed in this paper, according to the problem of secure and economical operating of the distribution network which contains distributed generation. Based on the power flow calculation, the objective function is established with comprehensive optimization between system losses and voltage excursion, and the advanced genetic algorithm attached with optimum saving strategy is utilized to dynamically determine the output of the adjustable sources as the customer loads change. Finally related simulation works are carried out based on MATLAB platform employing IEEE-33 node power system, and the feasibility and effectiveness of the proposed optimization scheme can be verified by the simulation results firstly demonstrating the effective improvements of the power losses and voltage deviation, meanwhile the elimination of out-of-limit risk for the node voltage; more importantly, testifying the better control effects for the stepless regulation ability and capacitor switching reduction compared with the traditional reactive compensation only with capacitors.
出处
《控制工程》
CSCD
北大核心
2016年第11期1666-1670,共5页
Control Engineering of China
关键词
配电网
分布式电源
无功优化
改进遗传算法
Distribution network
distributed generation
reactive power optimization
advanced genetic algorithm
