JPS57211989A - Current controller for thyristor motor - Google Patents

Current controller for thyristor motor

Info

Publication number
JPS57211989A
JPS57211989A JP56097828A JP9782881A JPS57211989A JP S57211989 A JPS57211989 A JP S57211989A JP 56097828 A JP56097828 A JP 56097828A JP 9782881 A JP9782881 A JP 9782881A JP S57211989 A JPS57211989 A JP S57211989A
Authority
JP
Japan
Prior art keywords
current
coil
armature
voltage
output signal
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
JP56097828A
Other languages
Japanese (ja)
Other versions
JPS6240956B2 (en
Inventor
Takeaki Asaeda
Yasuhiro Hara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56097828A priority Critical patent/JPS57211989A/en
Publication of JPS57211989A publication Critical patent/JPS57211989A/en
Publication of JPS6240956B2 publication Critical patent/JPS6240956B2/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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • H02P25/024—Synchronous motors controlled by supply frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To enhance the reliability of a thyristor motor by simultaneously performing a current reducing operation at both an armature and a compensating field current controller with an intermittent commutation timing signal when a synchronous motor is intermittently commutated, thereby reducing the voltage of the compensating field coil. CONSTITUTION:An armature 101, a main field coil 102 and a cmpensating field coi 103 are provided at a synchronous motor 100. A current controller 216 amplifies the deviation between the output signal of a speed controller 111 and the output signal of a current detector 119 for detecting the current of the coil 103, and performs a current reducing operation of the coil 103 in synchronism with the current reducing operation of the armature according to the output signal of a logic circuit 115 at the time of intermittently commutating an inverter 108. In this manner, the output voltage of a compensating field comparator 110 is reduced to a negative level, and even if the voltage of Ldi/dt component produced at the coil 103 is added by the effect of the magnetic coupling due to the attenuation of the armature current, the coil voltage level can be reduced as compared with the conventional one.
JP56097828A 1981-06-23 1981-06-23 Current controller for thyristor motor Granted JPS57211989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56097828A JPS57211989A (en) 1981-06-23 1981-06-23 Current controller for thyristor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56097828A JPS57211989A (en) 1981-06-23 1981-06-23 Current controller for thyristor motor

Publications (2)

Publication Number Publication Date
JPS57211989A true JPS57211989A (en) 1982-12-25
JPS6240956B2 JPS6240956B2 (en) 1987-08-31

Family

ID=14202579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56097828A Granted JPS57211989A (en) 1981-06-23 1981-06-23 Current controller for thyristor motor

Country Status (1)

Country Link
JP (1) JPS57211989A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146557U (en) * 1987-03-19 1988-09-27

Also Published As

Publication number Publication date
JPS6240956B2 (en) 1987-08-31

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