摘要
利用潮流计算模型分析了电网小负荷运行方式下发电机进相运行与负荷侧无功补偿对电网网损的影响机理,得到了发电机发出无功功率和负荷侧无功补偿容量对网损的灵敏度表达式。利用Dig SILENT/Power Factory对IEEE-9节点系统中发电机进相运行与负荷侧无功补偿对网损的影响进行了仿真计算,结果表明采用两种调压方式都能降低电网网损,但负荷侧进行无功补偿时网损更低。
Based on the power flow calculation model, this paper firstly analyzes the influence mechanism of the lead- ing phase generator and the reactive power compensation on load side to the grid losses in the small load operation mode,and the sensitivity expression of generator reactive power and reactive power compensation on load side to the grid losses is obtained. Then we simulate the influence of leading phase generator and reactive power compensation on load side on grid losses of IEEE-9 bus system by using DigSILENT/Power Factory. The results show that the two volt- age regulation methods can reduce the grid losses, when the reactive power compensation on load side is performed, the grid losses can be lower.
出处
《华北电力技术》
CAS
2017年第9期8-13,共6页
North China Electric Power
基金
国家电网公司重大科技项目(52272214002C)
关键词
发电机进相运行
负荷侧无功补偿
网损
调压
leading phase generator, reactive power compensation on load side, grid losses, voltage regulation
