GESCHWINDIGKEITSVERAENDERLICHES, FREQUENZKONSTANTES LEISTUNGSSYSTEM MIT ERHOEHUNGSWANDLERHILFSAUSGANG.

摘要

A DC link variable speed constant frequency power system is provided with a voltage boost circuit (46) connected to receive voltage from a pair of DC link conductors (14, 16) and to supply voltage to an auxiliary supply bus (62, 64). During normal system operation, the voltage boost circuit transfers the DC link voltage to the auxiliary supply bus. When a system fault occurs, such that the DC link voltage is reduced, the voltage boost circuit is activated to boost the reduced DC link voltage level and supply that boosted voltage level to the auxiliary supply bus.