江苏分区电网低频低压减载方案适应性分析  

Analysis on Adaptability of UFLS & UVLS Scheme in Jiangsu District Grids

作　　者：周霞[1] 罗凯明 李威[1] 李琳[1] 周磊[1] 罗剑波[1] 

机构地区：[1]国网电力科学研究院,江苏南京210003 [2]江苏电力调度通信中心,江苏南京210024

出　　处：《江苏电机工程》2012年第2期5-7,11,共4页Jiangsu Electrical Engineering

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.

关 键 词：低频低压减负荷 分区电网 频率安全 电压稳定 

分 类 号：TM732[电气工程—电力系统及自动化]