CAJ | 학술논문

广域控制是新一代大电网调控技术的发展方向.南方电网公司为提升区域间振荡阻尼,研发并安装了广域阻尼控制系统.该系统由位于6个500 kV站点的相量测量单元(PMU)、位于2个直流整流站的控制子站、位于总调的控制中央站以及广域控制和高压直流(HVDC)输电系统的接口组成,利用2回大容量直流的调制来改善电网动态稳定性.文中介绍了广域阻尼控制系统的设计思路、总体概况、系统的开环试运行情况,详细分析了2次闭环大扰动试验的结果.运行与试验表明该系统完全达到了增强区域间振荡阻尼的设计目的.
엄역공제시신일대대전망조공기술적발전방향.남방전망공사위제승구역간진탕조니,연발병안장료엄역조니공제계통.해계통유위우6개500 kV참점적상량측량단원(PMU)、위우2개직류정류참적공제자참、위우총조적공제중앙참이급엄역공제화고압직류(HVDC)수전계통적접구조성,이용2회대용량직류적조제래개선전망동태은정성.문중개소료엄역조니공제계통적설계사로、총체개황、계통적개배시운행정황,상세분석료2차폐배대우동시험적결과.운행여시험표명해계통완전체도료증강구역간진탕조니적설계목적.
Wide-area control is a promising technology in the next generation of bulk power system. A wide-area damping control (WADC) system has recently been developed by China Southern Power Grid Ltd. Co., to enhance the damping performance of inter-area oscillations in China Southern Power Grid. The WADC system uses modulation of two HVDC systems for improving power system dynamic stability. The control system comprises phasor measurement units (PMUs) at six 500 kV substations, fiber-optic communications, real-time control computers, control units at rectifier station and interface between HVDC and WADC. This paper introduces the design aspects of the WADC system and the subsequent implementation issues. Results of open-loop trial operation and closed-loop testing in the field are analyzed and used to show the effectiveness of the system.