摘要
在调研评述国内外分区电网低频、低压减载方案研究现状的基础上,针对江苏电网分层分区运行特点,分析指出江苏分区电网极端严重连锁故障下存在严重功率缺额、局部孤网等问题,通过校核江苏分区电网低频、低压减载方案的适应性,提出江苏分区电网低频、低压减载配置方案的改进建议。最后针对特高压电网互联、电气联系紧密,受电比例大、新能源出力不确定性等,对低频、低压减载方案整定研究方向进行了展望。
Based on the investigation and discussion of district power grid under-frequency and under-voltage load sheddmg scheme, this paper pointed out that Jiangsu district grids exist problems of serious power shortage and local isolated network under extremely serious chain faults with leveling and districting operation characteristics. Through checking adaptability of Jiangsu district power grid UFLS ＆ UVLS scheme, improvement suggestions of UFLS ＆ UVLS scheme in Jiangsu district power grid was proposed. Finally, considering of UHV grid interconnection, close electric connection, large proportion of power reception, and uncertainties of new energy output in the future, future research direction for setting under-frequency and under-voltage load shedding scheme is prospected.
出处
《江苏电机工程》
2012年第2期5-7,11,共4页
Jiangsu Electrical Engineering
关键词
低频低压减负荷
分区电网
频率安全
电压稳定
under-frequency and under-voltage load shedding
district grids
frequency security
voltage stability
