Patent ID: 6327162
Filing Date: 2001-12-04
Classification: H02J,Y02E

Abstract:
A static series voltage regulator for an electrical distribution system, said electrical distribution system having a power source outputting a source voltage and a load receiving a load voltage connected to said voltage source, said static series voltage regulator comprising:a first voltage source inverter having a dc input and an ac output;a source bridge, fed from said power source, supplying said dc input of said first inverter;a first series transformer connected between said power source and said load coupling said first inverter output to appear between said power source and said load; andcontrol means for controlling operation of said first inverter so that during normal operation said first inverter acts as a short on said first series transformer and during a power supply fault that causes a dip in the source voltage said first inverter output is injected in series with said source voltage to provide a boost action to maintain load voltage at a desired magnitude and balance.