SCR switched capacitor voltage regulator for 150 kV neutral beam power supply

This paper describes the LBL, MFE Neutral Beam Test Stand III B high voltage regulator system. The regulator is 100% solid state and provides 1% regulation at power levels in excess of 10 MW for 50 msec. Regulation is achieved by switching charged capactors in series with a large main capacitor bank which supplies the bulk of the power.