摘要
应用统一电能质量调节器(UPQC)对电能质量进行综合补偿时,容易受到外界不确定干扰的影响,UPQC的鲁棒稳定性和补偿效果得不到保证。针对这个问题,该文采用对电网和负载建立统一数学模型方式,设计一种灵敏度最小化的H∞补偿控制器,抑制电力系统不确定干扰。理论分析和仿真结果表明,该方法能提高UPQC的稳定性和鲁棒性,充分发挥其对电能质量的综合补偿功能。
When synthetically compensating for power quality by unified power quality conditioner （UPQC）, the robust stability and compensating effect of UPQC are affected by outside uncertain disturbance This paper adopts a unified math model, which contains electric power and load, and designs a sensitivity minimal H∞ controller to restrain the uncertain disturbance of electrical power system. The theoretically analysis and emulation result shows, this method can adequately carry out the synthetically compensating function of UPQC and get preferable control effect in improving power quality.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第19期76-80,共5页
Proceedings of the CSEE
基金
天津市自然科学基金项目(05YFJMJC11500)
