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JPS5523770A - Controller for thyristor motor - Google Patents

Controller for thyristor motor

Info

Publication number
JPS5523770A
JPS5523770A JP9613078A JP9613078A JPS5523770A JP S5523770 A JPS5523770 A JP S5523770A JP 9613078 A JP9613078 A JP 9613078A JP 9613078 A JP9613078 A JP 9613078A JP S5523770 A JPS5523770 A JP S5523770A
Authority
JP
Japan
Prior art keywords
motor
speed
signal
current
depending
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.)
Pending
Application number
JP9613078A
Other languages
Japanese (ja)
Inventor
Toshiaki Okuyama
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.)
Hitachi Ltd
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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9613078A priority Critical patent/JPS5523770A/en
Publication of JPS5523770A publication Critical patent/JPS5523770A/en
Pending legal-status Critical Current

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  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE: To reduce the ripple of torque of a thyristor motor when it rotates slowly, by adjusting the control advancement angle depending on the level of the current of the motor
CONSTITUTION: An automatic pulse phase shifter 8 regulates the control delay angle of a cyclone converter 1 depending on the difference between the output signal of a current detector 6 and that of a speed deviation amplifier 5 which amplifies the deviation of a speed detection signal from a speed command signal. A speed discrimination circuit 12 discriminates whether the revolution speed of the motor 2 is high or low. A function generator 13 selects a characteristic corresponding to the output of the speed discrimination circuit 12 and generates a phase control signal corresponding to the input current to the cyclone converter 1. The automatic pulse phase shifter 10 compares the phase control signal with a position signal to regulate the control advancement angle of the cyclone converter 1 depending on the armature current of the motor even if the motor rotates slowly. The terminal voltage and the armature current of the motor are thus set at the same phase. This results in reducing the ripple of torque of the motor when the motor rotates slowly.
COPYRIGHT: (C)1980,JPO&Japio
JP9613078A 1978-08-09 1978-08-09 Controller for thyristor motor Pending JPS5523770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9613078A JPS5523770A (en) 1978-08-09 1978-08-09 Controller for thyristor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9613078A JPS5523770A (en) 1978-08-09 1978-08-09 Controller for thyristor motor

Publications (1)

Publication Number Publication Date
JPS5523770A true JPS5523770A (en) 1980-02-20

Family

ID=14156796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9613078A Pending JPS5523770A (en) 1978-08-09 1978-08-09 Controller for thyristor motor

Country Status (1)

Country Link
JP (1) JPS5523770A (en)

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