Experimental Verification of a Dynamic Voltage Restorer Capable of Significantly Reducing an Energy-Storage Element
Experimental Verification of a Dynamic Voltage Restorer Capable of Significantly Reducing an Energy-Storage Element
复制标题
能够大幅减少储能元件的动态电压恢复器的实验验证
DOI：
10.1541/ieejias.125.1153
复制
发表时间：
2005
影响因子：
--
通讯作者：
H. Akagi
中科院分区：
文献类型：
--
作者：
T. Jimichi;H. Fujita;H. Akagi
提出了一种在负载侧加装并联变流器的动态电压恢复器（DVR）。当电源电压出现电压暂降时，DVR可以补偿负载电压。现有的DVR需要大的电容器组或其他储能元件，例如双层电容器或电池。本文提出的DVR只需要一个小的直流电容器用于平滑直流链路电压。此外，三种控制方法的串联变换器进行了比较和讨论，以降低串联变换器的额定值，注意到零序电压中包含的电源电压和补偿电压。从200 V，5千瓦的实验室系统获得的实验结果，以验证系统配置和控制方法的可行性。
This paper deals with a dynamic voltage restorer (DVR) characterized by installing the shunt converter at the load side. The DVR can compensate for the load voltage when a voltage sag appears in the supply voltage. An existing DVR requires a large capacitor bank or other energy-storage elements such as double-layer capacitors or batteries. The DVR presented in this paper requires only a small dc capacitor intended for smoothing the dc-link voltage. Moreover, three control methods for the series converter are compared and discussed to reduce the series-converter rating, paying attention to the zero-sequence voltages included in the supply voltage and the compensating voltage. Experimental results obtained from a 200-V, 5-kW laboratory system are shown to verify the viability of the system configuration and the control methods.