FIELD: electricity.
SUBSTANCE: power conversion device consists of the following components: switching elements (S1-S6) which are connected in parallel to the common current-conducting bus and excite currents with different phases; and a controller (14) of the electric motor which controls the respective switching elements (S1-S6). The controller (14) of the electric motor controls the respective switching elements (S1-S6) so that the direction of current fluctuation stipulated by switching on/off of one switching element is opposite to the direction of current fluctuation stipulated by switching on/off of at least one of other switching elements.
EFFECT: prevention of fast current fluctuations related to the switching on/off operations of each switching element.
12 cl, 25 dwg
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