JPS56150987A - Controller for speed of wound-rotor induction motor - Google Patents
Controller for speed of wound-rotor induction motorInfo
- Publication number
- JPS56150987A JPS56150987A JP5521980A JP5521980A JPS56150987A JP S56150987 A JPS56150987 A JP S56150987A JP 5521980 A JP5521980 A JP 5521980A JP 5521980 A JP5521980 A JP 5521980A JP S56150987 A JPS56150987 A JP S56150987A
- Authority
- JP
- Japan
- Prior art keywords
- power
- speed
- reactive power
- signals
- torque
- 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
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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
- H02P21/08—Indirect field-oriented control; Rotor flux feed-forward control
- H02P21/09—Field phase angle calculation based on rotor voltage equation by adding slip frequency and speed proportional frequency
-
- 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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/08—Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To hold a power-factor in an ideal value by controlling the amount of power at the secondary side of a motor returned to a power source by difference between reactive power at the primary side and reactive power set and signals obtained by adding secondary current signals to difference signals between actual speed and set speed. CONSTITUTION:Reference reactive power is given by a resistor 25, and controls a converter 3 at the secondary side of a motor 1 through a computing element 28 and a phase control circuit 30 together with reactive power signals from a reactive power detecting circuit 10 at the primary side. Reference speed is given by a resistor 15, inputted to a computing element 18 together with actual speed and changed into reference torque, actual torque signals from a torque detecting circuit 14 are further added and an inverter 4 is controlled through a phase control circuit 24. Thus, since a minor loop of speed control is controlled by torque, the variation of a main circuit due to the control of a power-factor has no effect on speed control, reactive power at the power source side is freely controlled and an ideal power-factor can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5521980A JPS56150987A (en) | 1980-04-25 | 1980-04-25 | Controller for speed of wound-rotor induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5521980A JPS56150987A (en) | 1980-04-25 | 1980-04-25 | Controller for speed of wound-rotor induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56150987A true JPS56150987A (en) | 1981-11-21 |
Family
ID=12992497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5521980A Pending JPS56150987A (en) | 1980-04-25 | 1980-04-25 | Controller for speed of wound-rotor induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56150987A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0221244A2 (en) * | 1985-10-02 | 1987-05-13 | Hitachi, Ltd. | Variable speed pump-up control method and apparatus |
JPH01270798A (en) * | 1988-04-22 | 1989-10-30 | Hitachi Ltd | Operation of variable speed generation system |
-
1980
- 1980-04-25 JP JP5521980A patent/JPS56150987A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0221244A2 (en) * | 1985-10-02 | 1987-05-13 | Hitachi, Ltd. | Variable speed pump-up control method and apparatus |
JPH01270798A (en) * | 1988-04-22 | 1989-10-30 | Hitachi Ltd | Operation of variable speed generation system |
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