【摘要】 提出一种基于三相三线系统的动态电压调节器 (DVR) ,根据其结构提出了线电压补偿的思想 ,具有结构紧凑、控制灵活等优点。采用常规PWM技术 ,DVR的补偿能力将十分低下 ,控制算法非常复杂。为此 ,提出了一种基于线电压的PWM控制技术 ,充分利用了逆变器直流侧电压。仿真分析和实验结果表明 ,该方法不仅计算简单 ,容易实现 ,而且大大提高了DVR的补偿能力。更多还原

【Abstract】 This paper introduces a dynamic voltage recovery (DVR) based on three phase three wire system and puts forward an idea of line voltage compensation, which is simple in structure and flexible to control. To overcome the disadvantages of low voltage compensation capability and complexity control algorithm of DVR, this paper proposes a control technique based on PWM of line voltage, which greatly improves the utilization rate of DC side voltage. The simulation analysis and experiment results show that the algorithm not only is simple in calculation and easy to implement, but also greatly improves the compensation capability of DVR. This work is supported by Construction Project of State Power Corporation Key Laboratory.更多还原