摘要
大中型光伏电站并网发电给电力系统的安全稳定及经济运行调度带来了很大的困扰和全新的挑战。基于逆变器调相控制的无功遥调技术的成功研发运用将完全改变传统的光伏发电站无功补偿的概念。以理论分析和实践验证证实:配置满足国家标准(GB/T-19964—2012《光伏发电站接入电力系统技术规定》)逆变器的光伏发电站无须额外配置无功补偿装置(SVC或SVG),其无功出力范围和动态响应时间足以满足电网对新接入电源的要求。这将为造价昂贵的光伏发电站节省大量资金,也可避免无功补偿装置的运行损耗。
The integration of large and medium-sized pv power station to the power grid brings a big problem and new challenges to the stability and scheduling of electric power system. The successful development and application of reactive remote-dispatching operation technology based on phase-modulation control of the inverter will totally change the traditional conception of reactive power compensation for pv power station. It has been theoretically and practically confirmed that the pv power station installed with the converter can meet the demand of national standards （GB/T 19964-2012 ＂Technical requirements for connecting photovohaic power station to power system＂）, and extra SVCs or SVGs are not needed, and the reactive power generation range and the dynamic response time of this kind of pv power station are good enough to meet the demand of power grid on integration of new power sources. It will save large amount of investment for butiding expensive pv power stations, and avoid power loss in running reactive compensation devices.
出处
《中国电力》
CSCD
北大核心
2014年第11期101-107,共7页
Electric Power
关键词
光伏发电站
逆变器
调相控制
自愈光环网
集群控制
瞬时功率理论
动态响应时间
PV power stations
inverter
phase modulation control
self-healing ring network
cluster control
instantaneous power theory
dynamic response time
