Title:
CONTROLLER AND CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2022077893
Kind Code:
A
Abstract:
To provide a controller and a control system which can suppress decrease of a damping effect for oscillation of filter capacitor voltage.SOLUTION: A controller controls an inverter which drives an AC motor with DC as an input to be output from an LC filter including a filter reactor and a filter capacitor. The controller is provided with a compensation control unit which performs damping compensation control which compensates for an output frequency of the inverter by sampling an oscillation component of voltage of the filter capacitor. The compensation control unit adjusts a gain of the damping compensation control depending on flux information of the AC motor. The control system is provided with the controller, the LC filter, and the inverter.SELECTED DRAWING: Figure 1
Inventors:
TAJIMA KOICHI
Application Number:
JP2020188955A
Publication Date:
May 24, 2022
Filing Date:
November 12, 2020
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H02P21/05; H02P21/14; H02P21/26
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito