摘要
10 kV分布式光伏接入工程已普遍铺开,量大面广,且大多未纳入电力调度部门实时监控。目前,分布式光伏发电系统防"孤岛"措施仍然基于用户侧的并网逆变器实现,电网侧缺乏受控的防孤岛措施。基于对并网开关柜进行改造,增加合闸闭锁环节,并通过GPRS方式使其受控于远方监控后台,从而有效地防止分布式光伏10 kV并网点倒送电情况的发生。
Grid-connection projects of 10kV distributed photovoltaic power generation have been widely spread, and most of them are still out of the control of the power dispatch center. Currently, distributed photovoltaic system islanding protection measures are still based on user side＇s inverter, therefore new islanding protection measures on grid side are needed to be studied. Based on the reform of grid-connected switchgear, closing and locking link and GPRS remote monitoring control system, the reverse power supply of 10 kV distributed photovoltaic power generation at grid connection point is effectively prevented.
出处
《江苏电机工程》
2015年第4期32-35,共4页
Jiangsu Electrical Engineering
基金
国网常州供电公司2014年群众性创新科技项目:J2014051-3
关键词
分布式光伏
并网点
倒送电
10 kV distributed photovoltaic power generation
grid connection point
reverse power supply
