H - Electricity – 02 – M
Patent
H - Electricity
02
M
318/103, 364/23
H02M 5/458 (2006.01) H02M 7/48 (2006.01) H02M 7/5387 (2006.01)
Patent
CA 1298612
ABSTRACT OF THE DISCLOSURE A method of and apparatus for regulating the control voltage of a three-phase inverter supplying an a.c. motor are provided, the inverter having a power stage implemented with semiconductor switches, and the output voltage of each inverter phase being measured in the voltage control. For rapidly improving the curve shapes of the inverter output by means of feedback, the control voltage of the pulse width modulator of each inverter phase is regulated by a voltage regulator. The control voltage obtained as output of the voltage regulator is derived from an actual value voltage formed from the output voltage of each inverter phase and a reference voltage.
530948
Hakala Harri
Hytti Pekka
Kahkipuro Matti
Nummi Pekka
Sten Urpo
G. Ronald Bell & Associates
Kone Elevator Gmbh
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