Title:
POWER CONVERTER CONTROLLER
Document Type and Number:
Japanese Patent JP2018050367
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a controller capable of suppressing torque ripple of a motor against a voltage fluctuation in a capacitor.SOLUTION: A power calculation unit 20 determines input power Pinv of an inverter 44 from a voltage Vinv applied to and a current Iinv flowing into the inverter 44. A reference voltage calculation unit 21 calculates a reference voltage Vref from a circuit impedance from a DC power supply 2 to the inverter 44 and input power Pinv. An output correction unit 23 corrects output voltage command values Vd, Vq, on the basis of a difference between the reference voltage Vref and the voltage Vinv applied to the inverter 44, so that the current Iinv running through the inverter 44 changes in such a direction that a fluctuation in the voltage Vinv applied to the inverter 44 is suppressed only when the voltage Vinv applied to the inverter 44 is not more than the reference voltage Vref.SELECTED DRAWING: Figure 1
Inventors:
KUBO YUKI
Application Number:
JP2016183046A
Publication Date:
March 29, 2018
Filing Date:
September 20, 2016
Export Citation:
Assignee:
DENSO CORP
International Classes:
H02M7/48
Attorney, Agent or Firm:
Masaki Hattori
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