PH12020000101A1 - Motor control apparatus and insulation resistance detection method for same - Google Patents

Motor control apparatus and insulation resistance detection method for same

Info

Publication number
PH12020000101A1
PH12020000101A1 PH12020000101A PH12020000101A PH12020000101A1 PH 12020000101 A1 PH12020000101 A1 PH 12020000101A1 PH 12020000101 A PH12020000101 A PH 12020000101A PH 12020000101 A PH12020000101 A PH 12020000101A PH 12020000101 A1 PH12020000101 A1 PH 12020000101A1
Authority
PH
Philippines
Prior art keywords
supply unit
power supply
bus
control apparatus
switch
Prior art date
Application number
PH12020000101A
Inventor
Yuji Ide
Keijo Kikuchi
Toshio Hiraide
Masakazu Sakai
Original Assignee
Sanyo Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co filed Critical Sanyo Electric Co
Publication of PH12020000101A1 publication Critical patent/PH12020000101A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

Provided is a motor control apparatus which includes: a first power supply unit; a first switch which is able to cut off supply of power from the first power supply unit; a direct current supply unit configured to output power from the first power supply unit to a bus; a capacitor connected to the bus; and a switching element configured to convert direct current supplied to the bus to alternating current and control drive of a motor. The motor control apparatus includes: a second power supply unit connected at one end to the bus and grounded at the other end via a second switch; a current detection unit configured to detect a value of a current between a winding of the motor and the bus connected to the second power supply unit; and an insulation resistance calculation unit, configured to, after cutting off the supply of power by the first switch unit, calculate an insulation resistance value of the motor on the basis of current values detected by the current detection unit in open and closed states of the second switch, a voltage value of the capacitor, and a voltage value of the second power supply unit.
PH12020000101A 2019-07-22 2020-07-16 Motor control apparatus and insulation resistance detection method for same PH12020000101A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019134575A JP6643519B1 (en) 2019-07-22 2019-07-22 Motor control device and its insulation resistance detection method

Publications (1)

Publication Number Publication Date
PH12020000101A1 true PH12020000101A1 (en) 2022-01-24

Family

ID=69412101

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12020000101A PH12020000101A1 (en) 2019-07-22 2020-07-16 Motor control apparatus and insulation resistance detection method for same

Country Status (4)

Country Link
JP (1) JP6643519B1 (en)
CN (1) CN112290853A (en)
PH (1) PH12020000101A1 (en)
TW (1) TW202107107A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112021007499T5 (en) 2021-06-16 2024-04-04 Fanuc Corporation MOTOR DRIVE DEVICE THAT CALCULATES AN INSULATION RESISTANCE VALUE OF A MOTOR
CN117471259B (en) * 2023-12-25 2024-04-02 中航锂电（洛阳）有限公司 Withstand voltage calculation method for power supply system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3751300B2 (en) * 2003-09-30 2006-03-01 ファナック株式会社 Motor drive device
JP4554501B2 (en) * 2005-01-18 2010-09-29 ファナック株式会社 Motor insulation resistance deterioration detection method, insulation resistance deterioration detection device, and motor drive device
JP4961045B1 (en) * 2011-02-24 2012-06-27 株式会社安川電機 Motor drive device
JP6680648B2 (en) * 2016-08-29 2020-04-15 山洋電気株式会社 Motor control device

Also Published As

Publication number Publication date
JP2021018163A (en) 2021-02-15
CN112290853A (en) 2021-01-29
JP6643519B1 (en) 2020-02-12
TW202107107A (en) 2021-02-16

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