JPS5671485A - Control device for induction machine - Google Patents

Control device for induction machine

Info

Publication number
JPS5671485A
JPS5671485A JP14552979A JP14552979A JPS5671485A JP S5671485 A JPS5671485 A JP S5671485A JP 14552979 A JP14552979 A JP 14552979A JP 14552979 A JP14552979 A JP 14552979A JP S5671485 A JPS5671485 A JP S5671485A
Authority
JP
Japan
Prior art keywords
value
secondary resistance
resistance value
actual
set value
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
JP14552979A
Other languages
Japanese (ja)
Other versions
JPS6233838B2 (en
Inventor
Hiroshi Nagase
Toshiaki Okuyama
Yuzuru Kubota
Katsunori Suzuki
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 JP14552979A priority Critical patent/JPS5671485A/en
Priority to US06/158,390 priority patent/US4330741A/en
Priority to DE3023135A priority patent/DE3023135C2/en
Publication of JPS5671485A publication Critical patent/JPS5671485A/en
Publication of JPS6233838B2 publication Critical patent/JPS6233838B2/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
    • 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
    • H02P27/045—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 whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
    • 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
    • H02P27/048—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 supply for only the rotor circuit or only the stator circuit
    • 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
    • H02P27/06—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 dc to ac converters or inverters
    • 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
    • H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
    • H02P2207/01—Asynchronous machines
    • 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
    • H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To enable stable operation of an induction machine without affect of a secondary resistance change by detecting the variation of a secondary resistance value, adding said value to the set value, and calculating the actual secondary resistance value. CONSTITUTION:Since the actual voltage is increased higher than the set value when the secondary resistance value is increased higher than the set value, the voltage is detected by a detector 22, and the deviation between the detected value and the set value by the multiplier 20 is obtained by a subtractor 23. Since the gate 35 is turned on in high speed range, a voltage control circuit 26 will produce a signal responsive to the output signal of the subtractor 23, thereby obtaining the variation corresponding to the reference secondary resistance value set by a secondary resistor 27. Then, the secondary resistance value is added to the variation by the adder 28, thereby obtaining the signal proportional to the actual secondary resistance value. On the other hand, if the secondary resistance is decreased, since the set value becomes lower than the detected value, a signal proportional to the actual secondary resistance value is fed from the adder 28 similarly.
JP14552979A 1979-06-20 1979-11-12 Control device for induction machine Granted JPS5671485A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14552979A JPS5671485A (en) 1979-11-12 1979-11-12 Control device for induction machine
US06/158,390 US4330741A (en) 1979-06-20 1980-06-11 Electric control apparatus of induction motor
DE3023135A DE3023135C2 (en) 1979-06-20 1980-06-20 Arrangement for controlling the torque of an asynchronous motor fed by a converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14552979A JPS5671485A (en) 1979-11-12 1979-11-12 Control device for induction machine

Publications (2)

Publication Number Publication Date
JPS5671485A true JPS5671485A (en) 1981-06-15
JPS6233838B2 JPS6233838B2 (en) 1987-07-23

Family

ID=15387316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14552979A Granted JPS5671485A (en) 1979-06-20 1979-11-12 Control device for induction machine

Country Status (1)

Country Link
JP (1) JPS5671485A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62272884A (en) * 1986-05-19 1987-11-27 Mitsubishi Electric Corp Vector control arithmetic unit for electric motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114027A (en) * 1973-03-07 1974-10-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114027A (en) * 1973-03-07 1974-10-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62272884A (en) * 1986-05-19 1987-11-27 Mitsubishi Electric Corp Vector control arithmetic unit for electric motor

Also Published As

Publication number Publication date
JPS6233838B2 (en) 1987-07-23

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