Control for electrical power conversion system

Details Control for electrical power conversion system Control for electrical power conversion system

1983-02-07

1984-12-18

Shoop, William M.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363129, 322 29, H02P 1324

Patent

active

044893230

ABSTRACT:
An electrical power system has a variable speed multi-phase alternator. A multi-phase full wave rectifier with controlled rectifier elements converts the electrical power to DC. The DC voltage is regulated by a control circuit which determines the angle of conduction of the rectifier elements. If the alternator frequency is excessive, the controlled rectifier elements are not reliably commutated. The control circuit compares the alternator frequency with a reference. When the frequency is above a selected value, rectifier operation is modified either for half wave rectification or for full wave rectification of less than all of the phases from the alternator. Additional switching time is provided, improving reliability.

REFERENCES:
patent: 3486102 (1969-12-01), Wilkerson
patent: 3514689 (1970-05-01), Giannamore
patent: 4042873 (1977-08-01), Cox
patent: 4161022 (1979-07-01), kanazawa et al.
patent: 4245292 (1981-01-01), Kalinichenko et al.

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