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.
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)~~
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
distributed photovohaic power generation
smartgrid
peak load shifting
line voltage drop
load rate
