VSCF system with an overload protection

Details VSCF system with an overload protection VSCF system with an overload protection

1989-05-15

1990-06-26

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 37, 363 97, 363132, H02H 700

Patent

active

049377230

ABSTRACT:
The problem of providing overload protection in a power generating system (10) is solved with an overload control (56) disclosed herein. The overload control (56) is used in connection with an inverter (50) which develops AC power at a select voltage level from a source (48) of DC power and includes an inverter switch controller (59) for developing switching signals to maintain inverter output voltage at the select voltage level. The overload control (56) includes an inverter output current sensor (66) and a current setpoint developing device (84). A logic control (92) is operatively associated with the inverter switch controller (59) for developing switching signals to control inverter output current if the actual inverter output current exceeds the desired inverter output current.

REFERENCES:
patent: 4167037 (1979-09-01), Moerman
patent: 4264951 (1981-04-01), Konishi et al.
patent: 4520437 (1985-05-01), Boettcher, Jr. et al.
patent: 4527226 (1985-07-01), Glennon
patent: 4666020 (1987-05-01), Watanabe

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