摘要
分布式电源DG(Distributed Generation)接入配电系统的形式多样。对于DG接入配电网的评价过程中一直缺少全面、综合的方法,提出了有功网损、电压偏移、电压稳定性和DG运行效率四个配电网评价指标,并基于粒子群算法对DG的并网位置和容量进行多目标优化。最后,将提出的评价指标和优化方法应用于IEEE33节点配电网标准算例,分别对DG的接入位置和接入容量进行了单目标和多目标优化。仿真结果表明,合理选择DG的接入地点和并网容量,可以兼顾配电网网损、电压偏移、电压稳定、DG运行效率多个评价指标,得到最优的DG接入配电网方案,对更多DGs接入配电网提供有价值的参考。
distributed Generation （DG） access to distribution system in various of forms. The evaluation for process of DG access to distribution network has been a lack of comprehensive approaches, this paper puts forward four distribution network evaluation index as the active network loss, voltage deviation, voltage stability, and I）G oper- ating efficiency, furthermore based on particle swarm optimization （pso） algorithm for multi-objective optimization to determine best grid location and capacity when ~ access to distribution system. Finally, the evaluation index and optimization method this article puts forward is applied to IEEE33 distribution network, respectively calculate the insert location and insert capacity of distributed generation as single objective optimization and multi-objective optimization. The simulation results show that the rational selection of DG insert location and DG insert capacity, can consider four of the evaluation index below, distribution network loss, voltage deviation, voltage stability, and DG operating efficiency, also gives the optimal plan of DG access to distribution network, provide valuable reference to evaluation of more DG access to distribution network.
出处
《电力学报》
2015年第2期93-99,116,共8页
Journal of Electric Power
基金
国家自然科学基金项目(50767001)
国家863高技术基金项目(2007AA04Z197)
高等学校博士学科点专项科研基金资助项目(20094501110002)
广东自然科学基金项目(S2013010012431
2014A030313509)
广西自然科学基金项目(2011jjA60017)
广东省高等学校人才引进专项资金项目
广东省高等院校学科建设专项资金科技创新项目(2012KJCX0045)
中国南方电网有限责任公司科技项目(K-GD2014-194LGD2014-2-0202)
关键词
配电网
分布式电源
运行效率
多评价指标
distribution network
distributed generation
operation efficiency
multi-index evaluation
