JPS55122498A - Method of controlling power switchover of motor - Google Patents

Method of controlling power switchover of motor

Info

Publication number
JPS55122498A
JPS55122498A JP3152679A JP3152679A JPS55122498A JP S55122498 A JPS55122498 A JP S55122498A JP 3152679 A JP3152679 A JP 3152679A JP 3152679 A JP3152679 A JP 3152679A JP S55122498 A JPS55122498 A JP S55122498A
Authority
JP
Japan
Prior art keywords
current
motor
driven
circuit
inverters
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
JP3152679A
Other languages
Japanese (ja)
Other versions
JPS5653276B2 (en
Inventor
Masahiko Iwata
Hiroki Shimizu
Yoji Namikawa
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.)
Shinko Electric Co Ltd
Original Assignee
Shinko Electric Co 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 Shinko Electric Co Ltd filed Critical Shinko Electric Co Ltd
Priority to JP3152679A priority Critical patent/JPS55122498A/en
Publication of JPS55122498A publication Critical patent/JPS55122498A/en
Publication of JPS5653276B2 publication Critical patent/JPS5653276B2/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
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors

Abstract

PURPOSE:To prevent an overcurrent when connecting a motor being driven by a commercial power source, in parallel with another motor being driven by an inverter, by increasing the current of the former motor as a lump function. CONSTITUTION:When only a motor M2 is driven by inverters 2, 5, a transistor 13 is turned on through a current minor loop including an integration circuit 14 and a linear amplifier 16 supplied with an inverter input current. A power rectifier circuit 2 is controlled through a current control amplifier 18. When another motor M1 being driven by a commercial power source 1 is coupled to the inverters, the sharp increase in the current of the power rectifier circuit 2 which accompanies the fall in a voltage feedback V0 is restricted by a limiter circuit, which comprises the transistor 13 and the integration circuit 14, to slowly increase the current as a lump function. This results in preventing a rush current at the time of switchover and heightening safety.
JP3152679A 1979-03-16 1979-03-16 Method of controlling power switchover of motor Granted JPS55122498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3152679A JPS55122498A (en) 1979-03-16 1979-03-16 Method of controlling power switchover of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3152679A JPS55122498A (en) 1979-03-16 1979-03-16 Method of controlling power switchover of motor

Publications (2)

Publication Number Publication Date
JPS55122498A true JPS55122498A (en) 1980-09-20
JPS5653276B2 JPS5653276B2 (en) 1981-12-17

Family

ID=12333625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3152679A Granted JPS55122498A (en) 1979-03-16 1979-03-16 Method of controlling power switchover of motor

Country Status (1)

Country Link
JP (1) JPS55122498A (en)

Also Published As

Publication number Publication date
JPS5653276B2 (en) 1981-12-17

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