Load commutated inverter gating control system and motor drive w

Details Load commutated inverter gating control system and motor drive w Load commutated inverter gating control system and motor drive w

1981-10-30

1984-01-24

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Synchronization systems

318345E, 318809, H02P 540

Patent

active

044279337

ABSTRACT:
A synchronous motor drive includes an inverter gating control system using three counters wherein two counters respond to 180.degree. apart zero crossings for providing units of time in terms of clock units, and the third counter is at a computed time interval preset with a count to be counted down to derive the remaining time which is to elapse until a predetermined firing angle is reached, at which time firing of the thyristor of the inverter is triggered.

REFERENCES:
patent: 4090116 (1978-05-01), Lippitt
Le-Huy et al., "Microprocessor Control of a Current-Fed Motor Drive," 1979IAS79:29A, pp. 873-880.

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