JPS57106389A - Static scherbius device - Google Patents

Static scherbius device

Info

Publication number
JPS57106389A
JPS57106389A JP17802380A JP17802380A JPS57106389A JP S57106389 A JPS57106389 A JP S57106389A JP 17802380 A JP17802380 A JP 17802380A JP 17802380 A JP17802380 A JP 17802380A JP S57106389 A JPS57106389 A JP S57106389A
Authority
JP
Japan
Prior art keywords
currents
current
command
motor
inhibit
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
JP17802380A
Other languages
Japanese (ja)
Other versions
JPS631840B2 (en
Inventor
Tatsuo Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing Co 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
Application filed by Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP17802380A priority Critical patent/JPS57106389A/en
Publication of JPS57106389A publication Critical patent/JPS57106389A/en
Publication of JPS631840B2 publication Critical patent/JPS631840B2/ja
Granted legal-status Critical Current

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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
    • H02P21/08—Indirect field-oriented control; Rotor flux feed-forward control
    • H02P21/09—Field phase angle calculation based on rotor voltage equation by adding slip frequency and speed proportional frequency
    • 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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/08—Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To inhibit overcurrents by electrically detecting the condition of an induction motor and controlling currents by the signals when the motor reaches the maximum speed. CONSTITUTION:When a current command Iref high than currents corresponding to necessary secondary currents is given even after the induction motor IM reaches the maximum speed, the currents of the secondary currents or higher of the necessary motor flow through a rectifying device SR of an additional circuit and a current detector IDET. The rotary currents i are detected by means of the current detector IDET, and arithmetically operated by means of a low voltage command preference circuit PC so as to inhibit a current limit command ILIM by the current detecting signals. That is, the currents of a main circuit of the static Scherbius device, a transformer TR- a reverse conversion section INV- a forward conversion section CONV- a DC reactor DCL, are inhibited because converter output I'LIM decreases with the increase of current detecting signals i and the low output signal voltage is given to a current amplifier IAMP as the current command Iref from the operation of low voltage command preference.
JP17802380A 1980-12-18 1980-12-18 Static scherbius device Granted JPS57106389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17802380A JPS57106389A (en) 1980-12-18 1980-12-18 Static scherbius device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17802380A JPS57106389A (en) 1980-12-18 1980-12-18 Static scherbius device

Publications (2)

Publication Number Publication Date
JPS57106389A true JPS57106389A (en) 1982-07-02
JPS631840B2 JPS631840B2 (en) 1988-01-14

Family

ID=16041221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17802380A Granted JPS57106389A (en) 1980-12-18 1980-12-18 Static scherbius device

Country Status (1)

Country Link
JP (1) JPS57106389A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02133327U (en) * 1989-04-11 1990-11-06

Also Published As

Publication number Publication date
JPS631840B2 (en) 1988-01-14

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