A Dynamic Voltage Restorer (DVR) is connected in series with the network. The main function of a DVR is the protection of sensitive loads from influence of the voltage fluctuation, especially voltage sag.

• 动态电压恢复器DVR(Dynamic Voltage Restorer)串联于电网络,用来保护敏感负荷免受电压波动尤其是电压凹陷的影响。