JPS645393A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS645393A
JPS645393A JP62157827A JP15782787A JPS645393A JP S645393 A JPS645393 A JP S645393A JP 62157827 A JP62157827 A JP 62157827A JP 15782787 A JP15782787 A JP 15782787A JP S645393 A JPS645393 A JP S645393A
Authority
JP
Japan
Prior art keywords
speed
deviation
command
omega
300rpm
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
JP62157827A
Other languages
Japanese (ja)
Inventor
Hiroshi Kumagai
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62157827A priority Critical patent/JPS645393A/en
Publication of JPS645393A publication Critical patent/JPS645393A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To improve respon siveness in a low speed area, by providing the front step of a speed controlling means, with a limiter means for limiting a deviation between speed detection signal and speed command signal. CONSTITUTION:A limiter means 80 for limiting a deviation between the command signal omega of a speed command means and the speed detection signal omegar of a speed detection means is set. For example, when a speed deviation limit value omegaHH is kept set 30rpm, then a speed deviation command value omega does not come to 300rpm or more; therefore even if constants KP, KI are set 10 times as large as conventional ones, the stability of a system is kept. Accordingly, when the speed deviation command value omega is 300rpm, then torque command current I can be set 10 times as large as conventional one, and so in the low speed area of a less speed deviation, control good for response in particular can be performed.
JP62157827A 1987-06-26 1987-06-26 Controller for induction motor Pending JPS645393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62157827A JPS645393A (en) 1987-06-26 1987-06-26 Controller for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62157827A JPS645393A (en) 1987-06-26 1987-06-26 Controller for induction motor

Publications (1)

Publication Number Publication Date
JPS645393A true JPS645393A (en) 1989-01-10

Family

ID=15658185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62157827A Pending JPS645393A (en) 1987-06-26 1987-06-26 Controller for induction motor

Country Status (1)

Country Link
JP (1) JPS645393A (en)

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