摘要
基于放射状链式配电网络,研究了分布式电源并网后负荷节点的静态电压分布情况.首次建立了递减、递增和等腰三种典型负荷分布模型,并在此负荷分布模型基础上定量地研究了分布式电源并网后配电网的电压分布情况.讨论了分布式电源位置和容量的限制问题.结合仿真算例,考察不同位置和容量的分布式电源并网后配电线路的电压变化情况.研究表明,分布式电源的接入会起到电压支撑作用,但不恰当的接入位置和注入容量会造成电压越限和网损增加;因此必须进行合理的规划,使各负荷节点的静态电压稳定在允许范围内.
The static voltage profile of loaded nodes in a radially chained distribution network interconnecting with a number of distributed generation（DG） systems was studied.Three typical load distribution models,i.e.,the decreasing,increasing and isosceles models,were developed to discuss the voltage profile in such a distribution network quantitatively in association with the restrictions on DG＇s location and capacity.A simulation example was given to investigate the impact of DG＇s location and capacity on the static voltage,and the results showed that the interconnections between DGs and distribution network will support the voltage,while the improper location and capacity of DG may cause overvoltage and increase the network loss.Therefore,a reasonable allocation is necessary for DGs to ensure that the static voltage of every loaded node is within the permissible range.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第8期1074-1077,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(60904101,60972164,50977008)
中央高校基本科研业务费专项资金资助项目(N090404009)
关键词
分布式发电
配电网
典型负荷分布模型
静态电压分布
优化配置
distributed generation
distribution network
typical load distribution model
static voltage profile
optimal allocation
