JPS5731391A - Speed controlling device for induction motor - Google Patents

Speed controlling device for induction motor

Info

Publication number
JPS5731391A
JPS5731391A JP10399580A JP10399580A JPS5731391A JP S5731391 A JPS5731391 A JP S5731391A JP 10399580 A JP10399580 A JP 10399580A JP 10399580 A JP10399580 A JP 10399580A JP S5731391 A JPS5731391 A JP S5731391A
Authority
JP
Japan
Prior art keywords
circuit
controlling
power source
frequency
controlled rectifier
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
JP10399580A
Other languages
Japanese (ja)
Inventor
Yoshiharu Nakazawa
Makoto Fukuyama
Fujio Ishikawa
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP10399580A priority Critical patent/JPS5731391A/en
Publication of JPS5731391A publication Critical patent/JPS5731391A/en
Pending 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
    • 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
    • H02P27/16—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 ac to ac converters without intermediate conversion to dc

Abstract

PURPOSE:To finely control the generated frequency of a controlled rectifier circuit by switching and controlling the element of the controlled rectifier circuit at every predetermined half-wave of a power source. CONSTITUTION:The phases U, V, W of 3-phase AC power source 1 are led to a transformer 2, the elements THU, THU1, THV, THV1, THW, THW1 of a controlled rectifier circuit 3 are connected to the output of the transformer 2 commonly, and the output of the circuit 3 is connected to the input terminals MU, MV, MW of a 3-phase induction motor 4. A speed feedback signal is produced from a speed detector 5, is compared with the set signal of a speed setting unit 6 by a comparator 7, and a speed controller 8 is controlled by the deviation signal from the comparator. A switching signal for controlling the generated frequency of the circuit 3 is applied from the frequency controlling circuit 9, and a voltage phase controlling circuit 10 is operated simultaneously in response to the frequency. The elements in the circuit 3 are switched at every predetermined half-wave of the power source.
JP10399580A 1980-07-29 1980-07-29 Speed controlling device for induction motor Pending JPS5731391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10399580A JPS5731391A (en) 1980-07-29 1980-07-29 Speed controlling device for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10399580A JPS5731391A (en) 1980-07-29 1980-07-29 Speed controlling device for induction motor

Publications (1)

Publication Number Publication Date
JPS5731391A true JPS5731391A (en) 1982-02-19

Family

ID=14368872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10399580A Pending JPS5731391A (en) 1980-07-29 1980-07-29 Speed controlling device for induction motor

Country Status (1)

Country Link
JP (1) JPS5731391A (en)

Similar Documents

Publication Publication Date Title
DE3370732D1 (en) Three-phase power factor controller with induced emf sensing
ATE98067T1 (en) DC CONTROLLER.
DE3272772D1 (en) Method and device for controlling a brushless alternating current motor
JPS5731391A (en) Speed controlling device for induction motor
JPS5731392A (en) Speed controlling device for 6-phase induction motor
JPS6423768A (en) Dc and ac power circuit unit
JPS56149617A (en) Temperature controller of electric heating device
JPS56162997A (en) Motor controlling device by primary frequency control
FR2356992A1 (en) Power regulator system for electric motor - has series triac controlled by triggering pulses of variable conduction angle and connected to AC supply (NL 3.1.78)
JPS57129196A (en) Control device for ac motor
JPS5599615A (en) Automatic voltage controller
JPS5450858A (en) Temperature controller
JPS56116127A (en) Voltage controller
JPS56101397A (en) Motor control circuit
JPS56133999A (en) Inverter control circuit
JPS5790728A (en) Stabilizer of load electric power
JPS57142194A (en) Electric power-saving control circuit for motor
JPS5785596A (en) Multi-stage speed control device for induction motor
JPS56121299A (en) Voltage controller for x-ray tube
JPS56132190A (en) Driving device for induction motor
FR2253309A1 (en) Current supply cct. from AC mains - uses AC voltage phase control with anti-parallel thyristors in series with load, controlled by flip-flop stage
JPS57153593A (en) Variable speed driving method for induction motor
JPS5728566A (en) Semiconductor circuit for electric power
JPS558255A (en) Dc motor speed controller
JPS5625382A (en) Separately excited inverter device