MULTIGROUP, MULTIPHASE DRIVING SYSTEM AND DRIVING METHOD FOR ROTARY ELECTRIC MACHINE
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Accused Products
Abstract
A multigroup, multiphase driving system includes a power converter that converts direct current power into alternating current power and vice versa, a direct current power supply connected to a direct current side of the power converter to be charged with and discharge direct current power, and a rotary electric machine connected to an alternating current side of the power converter and including a plurality of groups of multiphase armature windings, and further including a determination unit that determines the number of groups to be used to drive the rotary electric machine on the basis of a rotation speed of the rotary electric machine, a current flowing through the rotary electric machine, a direct current power supply voltage of the direct current power supply, and a carrier frequency of the power converter, the multigroup, multiphase driving system overall loss in the system can be reduced.
9 Citations
27 Claims
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1-10. -10. (canceled)
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11. :
- A multigroup, multiphase driving system comprising;
a power converter that converts direct current power into alternating current power and vice versa; a direct current power supply connected to a direct current side of the power converter so as to be charged with and discharge direct current power; a rotary electric machine that is connected to an alternating current side of the power converter and includes a plurality of groups of multiphase armature windings; and a determination unit that determines a number of groups to be used to drive the rotary electric machine on the basis of a rotation speed of the rotary electric machine, a current flowing through the rotary electric machine, a direct current power supply voltage of the direct current power supply, and a carrier frequency of the power converter. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- A multigroup, multiphase driving system comprising;
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27. :
- A driving method for a rotary electric machine, executed in a multigroup, multiphase driving system including;
a power converter that converts direct current power into alternating current power and vice versa; a direct current power supply connected to a direct current side of the power converter so as to be charged with and discharge direct current power; and a rotary electric machine that is connected to an alternating current side of the power converter and includes a plurality of groups of multiphase armature windings, the driving method comprising a determination step for determining a number of groups to be used to drive the rotary electric machine on the basis of a rotation speed of the rotary electric machine, a current flowing through the rotary electric machine, a direct current power supply voltage of the direct current power supply, and a carrier frequency of the power converter.
- A driving method for a rotary electric machine, executed in a multigroup, multiphase driving system including;
Specification