H - Electricity – 02 – M
Patent
H - Electricity
02
M
H02M 1/084 (2006.01) H02M 7/19 (2006.01) H02M 7/217 (2006.01) H02M 1/00 (2006.01) H02M 7/48 (2006.01)
Patent
CA 2337921
A power conversion device according to the invention of the present application includes: an active current controller that calculates a phase angle reference value for determining the ON/OFF phase with reference to the AC power source voltage phase, from the deviation of the input active current with respect to an active current reference value; and a fixed pulse pattern generator that controls the self-excited voltage type power converter by generating switching signals of fixed pulse pattern whose fundamental frequency is synchronized with the AC power source frequency, based on the phase angle reference value calculated by this active current controller. In this way, with the invention of the present application, the harmonic components contained in the AC input current can be reduced without raising the switching frequency of the PWM power conversion device.
Fetherstonhaugh & Co.
Kabushiki Kaisha Toshiba
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