分布式光伏发电在智能电网中的作用分析  

Role of Distributed Photovoltaic Generation in Smart Grid

作　　者：康海云[1] 杭乃善[1,2] 卢桥[1] 詹厚剑[3] 康海兵 成煜[1] 苏毅[1] 

机构地区：[1]广西大学电气工程学院,广西南宁530004 [2]广西电力系统最优化与节能技术重点实验室,广西南宁530004 [3]广西电力调度通信中心,广西南宁530023 [4]海军南海舰队司令部军务处,广东湛江524001

出　　处：《电网与清洁能源》2013年第10期86-90,共5页Power System and Clean Energy

基　　金：国家自然科学基金(51277034);广西研究生教育创新计划资助项目(YCSZ2012026)~~

摘　　要：介绍了分布式光伏发电的原理,分别从削峰填谷作用、对低压配电网电压降的影响、系统节点电压及线路负载率的影响三个方面探讨了在智能电网中分布式光伏发电并网的可行性。通过理论分析和算例分析,得到了以下结论:分布式光伏发电系统并入智能电网可以对系统起到削峰填谷的作用,对电网的安全运行以及能源的充分利用发挥了重要作用;对低压配电网起到了提升电压、缓减压降的效果;降低了系统重载线路的负载率,且对系统的电压稳定性不会造成威胁。This paper introduces the principle of distributed photovoltaic, and discusses the feasibility of distributed grid-connected photovoltaic（pv） in the smart grid from perspectives of peak sharpening effect, impacts on the low voltage distribution network node voltage and line voltage drop, and impacts on the system load factor. Through theoretical analysis and example analysis, the paper has obtained following conclusion： the distributed photovoltaic power generation system integrated into the smart grid can cut the load peak cut, and plays an important role on the safe operation of the power grid and full use of the energy. For the low voltage distribution network it can boost the voltage, slow the effects of reduced pressure drop and reduce the load rate of the overloaded lines in the system. In addition, this system poses no threat to the voltage stability of the system.

关 键 词：分布式光伏发电 智能电网 削峰填谷 线路压降 负载率 

分 类 号：TM914.4[电气工程—电力电子与电力传动]