摘要
动态电压恢复器(DVR)是补偿电压凹陷最有效的装置,控制方式是其技术核心。文中从能量角度提出了DVR的最小视在功率控制方式,该方式在使DVR的视在功率最小的同时,大大减小了DVR的容量、无功功率和注入电压幅值,并降低了DVR的造价,而且控制简单、计算量小,是一种综合性能较好的控制方式。对采用最小视在功率控制时DVR各方面性能的改进做了详细的理论论证。仿真结果验证了理论论证的正确性。
Dynamic voltage restorer (DVR) is the most effective device for compensating voltage sags. Control method is a key technology. This paper proposes a new method named minimum apparent power control. It minimizes apparent power of DVR, reduces capacity and reactive power of DVR greatly, and also decreases the injecting voltages of DVR, thus reducing the cost. Furthermore, it has the advantages of less computation and simple control. Therefore it is a better multiple-performance control method. Detailed demonstrations for performances of the method are presented, and simulation results illustrate the validity of the demonstration.
出处
《电力系统自动化》
EI
CSCD
北大核心
2005年第11期19-22,48,共5页
Automation of Electric Power Systems
基金
四川省应用基础研究基金资助项目(01GY051-41)
