Apparatus for controlling current type inverters

Details Apparatus for controlling current type inverters Apparatus for controlling current type inverters

1979-11-27

1982-01-19

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

318811, 363138, H02M 7155

Patent

active

043120318

ABSTRACT:
In an apparatus for controlling an inverter which delivers a current vector with a specific number of phase positions to an AC load, there are provided a phase difference detecting circuit and a commutation control circuit. The phase difference detecting circuit detects a phase difference (.theta.) between the output current vector delivered from the inverter and a phase angle instructed, while the commutation control circuit controls the commutation of the inverter by comparing the phase difference (.theta.) thus detected, or an integration of the phase difference (.theta.) with respect to time, with a positive reference value and a negative reference value.

REFERENCES:
patent: 3694718 (1972-09-01), Graf et al.
patent: 3886430 (1975-05-01), Meier
patent: 4225912 (1980-09-01), Messer
patent: 4227138 (1980-10-01), Espelage

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