电力系统保护与控制Issue(3)：134-140,7.
基于FNET实测数据分析川渝电网频率动态特性
Frequency dynamics analysis of Sichuan-Chongqing Power Grid based on the FNET data
摘要
Abstract
Frequency Monitoring Network (FNET) has realized the synchronous measurement of system frequency in Sichuan-Chongqing Power Grid. Based on the FNET measured data of Sichuan-Chongqing Power Grid, this paper evaluates the frequency quality of the power grid in recent years. The frequency time-space distribution characteristic of Sichuan-Chongqing Power Grid is presented and the frequency disturbance recovery capacity is evaluated by using statistic method. With disturbance data from FNET, this paper determines the dominant modes of the system according to the TLS-ESPRIT identification method and observes the weak damping and low frequency oscillation phenomenon between Chengdu and Panzhihua under the 0.25 Hz mode. The conclusions contribute to understanding the frequency quality and dynamics of Sichuan-Chongqing Power Grid as well as improving the control scheme of system frequency. This work is supported by National Natural Science Foundation of China (No. 90610026).关键词
频率监测网(FNET)/频率质量/时空分布特性/频率恢复能力/低频振荡/TLS-ESPRITKey words
frequency monitoring network (FNET)/frequency quality/time-space distribution characteristic/frequency recovery capacity/low frequency oscillation/TLS-ESPRIT分类
信息技术与安全科学引用本文复制引用
刘凯,刘克天,王晓茹,范成围..基于FNET实测数据分析川渝电网频率动态特性[J].电力系统保护与控制,2014,(3):134-140,7.基金项目
国家自然科学基金资助项目 （）
