JPS579285A - Inverter for driving motor - Google Patents

Inverter for driving motor

Info

Publication number
JPS579285A
JPS579285A JP8142780A JP8142780A JPS579285A JP S579285 A JPS579285 A JP S579285A JP 8142780 A JP8142780 A JP 8142780A JP 8142780 A JP8142780 A JP 8142780A JP S579285 A JPS579285 A JP S579285A
Authority
JP
Japan
Prior art keywords
inverter
controlled
signal
compensating
comparator
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP8142780A
Other languages
Japanese (ja)
Other versions
JPS6329518B2 (en
Inventor
Toshiaki Okuyama
Hiroshi Nagase
Original Assignee
Hitachi Ltd
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
Family has litigation
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55081427A priority Critical patent/JPS6329518B2/ja
Publication of JPS579285A publication Critical patent/JPS579285A/en
Publication of JPS6329518B2 publication Critical patent/JPS6329518B2/ja
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13746063&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS579285(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P21/00Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/04Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for very low speeds
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P21/00Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/14Estimation or adaptation of machine parameters, e.g. flux, current or voltage
    • H02P21/16Estimation of constants, e.g. the rotor time constant

Abstract

PURPOSE:To smoothly control an inverter for driving a motor at a low speed operating time by compensating the influence of a primary resistance drop, improving the controllability at the low speed operating time and thus compensating the influence of the primary resistance drop. CONSTITUTION:After a commercial power source is rectified by a rectifier 1, it is smoothed by a smoothing condenser 2, and is in turn applied to a PWM inverter 3. The inverter 3 controls it as prescribed and supplies an AC power to an induction motor 4. When the inverter 3 is controlled, it is vector controlled, and is controlled by the excitation current component and torque current component. A carrier signal (triangular wave) from an oscillator 22 is compared by a comparator 23, the gate turn-off thyristor of the inverter 3 is controlled ON or OFF in accordance with the PWM signal as the output signal from the comparator so that the output of the inverter is proportional to the voltage instruction signal.
JP55081427A 1980-06-18 1980-06-18 Expired JPS6329518B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55081427A JPS6329518B2 (en) 1980-06-18 1980-06-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55081427A JPS6329518B2 (en) 1980-06-18 1980-06-18

Publications (2)

Publication Number Publication Date
JPS579285A true JPS579285A (en) 1982-01-18
JPS6329518B2 JPS6329518B2 (en) 1988-06-14

Family

ID=13746063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55081427A Expired JPS6329518B2 (en) 1980-06-18 1980-06-18

Country Status (1)

Country Link
JP (1) JPS6329518B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165969A (en) * 1983-03-11 1984-09-19 Hitachi Ltd Pwm inverter
JPS59220089A (en) * 1983-05-26 1984-12-11 Akira Yamamura Control system of induction motor
EP0154312A2 (en) * 1984-03-05 1985-09-11 Hitachi, Ltd. Load drive apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106452254B (en) * 2016-12-19 2019-01-29 四川长虹电器股份有限公司 Motor phase resistance high-precision offline identification method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50121724A (en) * 1974-03-05 1975-09-23
JPS531813A (en) * 1976-06-28 1978-01-10 Toshiba Corp Control system of ac motor
JPS54129422A (en) * 1978-03-31 1979-10-06 Toshiba Corp Controller for induction motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50121724A (en) * 1974-03-05 1975-09-23
JPS531813A (en) * 1976-06-28 1978-01-10 Toshiba Corp Control system of ac motor
JPS54129422A (en) * 1978-03-31 1979-10-06 Toshiba Corp Controller for induction motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165969A (en) * 1983-03-11 1984-09-19 Hitachi Ltd Pwm inverter
JPS59220089A (en) * 1983-05-26 1984-12-11 Akira Yamamura Control system of induction motor
EP0154312A2 (en) * 1984-03-05 1985-09-11 Hitachi, Ltd. Load drive apparatus

Also Published As

Publication number Publication date
JPS6329518B2 (en) 1988-06-14

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