直流微电网光伏发电系统自适应电压支撑策略OA北大核心CSTPCD
Adaptive Voltage Support Strategy for Photovoltaic Generation System in DC Microgrid
当直流微电网中光伏发电系统的容量占比较大时,光伏应具备对直流母线电压支撑的功能。将光伏输出功率与直流微电网母线电压构成支撑关系,采用牛顿差值法对光伏输出采样值进行拟合,并依据实时拟合光伏P-V曲线和电压支撑关系得到电压控制参考值;引入出力系数综合考虑光伏发电的经济性与电压支撑能力,通过自适应策略选取出力系数,实现光伏发电的自适应电压支撑。同时将最大功率跟踪、恒功率和自适应电压支撑策略进行集成,建立了多模式集成控制策略。本文提出的策略原理简单、易于…查看全部>>
When the capacity of photovoltaic system is relatively large in DC microgrid,the photovoltaic (PV)system should have the function of bus voltage support. Firstly,a supportive relationship between the output power of PV and the bus voltage of DC microgrid is constituted in this paper,and the real-time photovoltaic output P-V curve is fitted based on sampling values by using the Newton difference method,then the DC voltage control reference value i…查看全部>>
喻磊;雷金勇;田兵;胡辉勇;魏文潇;郭晓斌;李鹏
南方电网科学研究院,广州510663南方电网科学研究院,广州510663南方电网科学研究院,广州510663浙江大学电气工程学院,杭州310027南方电网科学研究院,广州510663南方电网科学研究院,广州510663南方电网科学研究院,广州510663
信息技术与安全科学
直流微电网光伏发电系统自适应电压支撑牛顿插值法
DC microgridphotovoltaic generation systemadaptive voltage supportNewton difference method
《南方电网技术》 2016 (10)
18-23,30,7
国家高技术研究发展计划(863计划)项目(2014AA052001);南方电网公司科技项目(K-KY2014-009);南方电网科学研究院科技项目(SEPRI-K154001)。@@@@Supported by the National High Technology Research and Development Program of China (863 Program)(2014AA052001);Science &Technology Projects of CSG (K-KY2014-009);Science &Technology Projects of SEPRI (SEPRI-K154001)
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