Inverter firing control with compensation for variable switching

Details Inverter firing control with compensation for variable switching Inverter firing control with compensation for variable switching

1982-03-05

1984-04-17

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 98, 363132, H02M 7537, H02M 112

Patent

active

044438427

ABSTRACT:
A pole switch firing control for a pulse width modulated inverter controls pole switch operation under steady state operating conditions such that the inverter output duplicates a reference signal waveform after a fixed time delay. Pole switch operating time for a given pulse in an inverter output cycle is measured and subtracted from a fixed time interval to get a delay time. In the succeeding output cycle, the corresponding pulse is produced by initiating the pole switch operating sequence after the delay time, thereby causing the pole switch to operate a fixed time following the reference signal.

REFERENCES:
patent: 3624486 (1971-11-01), Oates
patent: 3710229 (1973-01-01), Jessee
patent: 3715649 (1973-02-01), Ravas
patent: 3781634 (1973-12-01), Jessee
patent: 3967173 (1976-06-01), Stich
patent: 4166247 (1979-08-01), Miyazawa
patent: 4179727 (1979-12-01), Muto et al.
patent: 4228491 (1980-10-01), Abraham et al.
patent: 4291368 (1981-09-01), Yarema et al.
patent: 4370702 (1983-01-01), Shuey et al.

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