JPS5743592A - Controlling device of inverter - Google Patents

Controlling device of inverter

Info

Publication number
JPS5743592A
JPS5743592A JP55115985A JP11598580A JPS5743592A JP S5743592 A JPS5743592 A JP S5743592A JP 55115985 A JP55115985 A JP 55115985A JP 11598580 A JP11598580 A JP 11598580A JP S5743592 A JPS5743592 A JP S5743592A
Authority
JP
Japan
Prior art keywords
voltage
signal
frequency
veta
matching
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
JP55115985A
Other languages
Japanese (ja)
Inventor
Makoto Fukuyama
Takeshi Shioda
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 Denki Seizo KK
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Denki Seizo KK
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 Denki Seizo KK, Toyo Electric Manufacturing Ltd filed Critical Toyo Denki Seizo KK
Priority to JP55115985A priority Critical patent/JPS5743592A/en
Publication of JPS5743592A publication Critical patent/JPS5743592A/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
    • H02P27/06—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

Landscapes

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

Abstract

PURPOSE:To enable an electric motor to be operated on the most efficient condition at all times, by operating the electric motor by an operation voltage to be decided by the maximum-efficiency operation frequency matching a set rpm and the minimum current value of the motor. CONSTITUTION:A frequency setter 1 has in its memory operation frequencies to display the maximum efficiency in all the set revolutions, and when a set revolution signal omegam' is put in, an operation frequency signal f1' is put out, and an inverter 2 drives an electric motor 3 at the frequency f1 matching this. A signal I1' corresponding to primary current of the motor 3 is detected by a current detecting circuit 7, and a voltage adjuster 8 puts out a voltage signal V1 to minimize the primary current I1 and also puts out a voltage signal Vm' for the time when the primary current I1 is minimum. A voltage setter 5 keeps in its memory an operation voltage Veta which maximamizes efficiency mathcing the primary voltage Vm, and an output voltage of the inverter becomes Veta when an operation voltage signal Veta, matching Vm' is put out.
JP55115985A 1980-08-25 1980-08-25 Controlling device of inverter Pending JPS5743592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115985A JPS5743592A (en) 1980-08-25 1980-08-25 Controlling device of inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115985A JPS5743592A (en) 1980-08-25 1980-08-25 Controlling device of inverter

Publications (1)

Publication Number Publication Date
JPS5743592A true JPS5743592A (en) 1982-03-11

Family

ID=14676015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115985A Pending JPS5743592A (en) 1980-08-25 1980-08-25 Controlling device of inverter

Country Status (1)

Country Link
JP (1) JPS5743592A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175383A (en) * 1983-03-25 1984-10-04 Toshiba Corp Inverter device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS557077A (en) * 1978-07-03 1980-01-18 Nippon Suisan Kaisha Ltd Production of fish meat food

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS557077A (en) * 1978-07-03 1980-01-18 Nippon Suisan Kaisha Ltd Production of fish meat food

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175383A (en) * 1983-03-25 1984-10-04 Toshiba Corp Inverter device

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