JPS5743585A - Slip angle frequency calculating device for induction motor - Google Patents
Slip angle frequency calculating device for induction motorInfo
- Publication number
- JPS5743585A JPS5743585A JP55117882A JP11788280A JPS5743585A JP S5743585 A JPS5743585 A JP S5743585A JP 55117882 A JP55117882 A JP 55117882A JP 11788280 A JP11788280 A JP 11788280A JP S5743585 A JPS5743585 A JP S5743585A
- Authority
- JP
- Japan
- Prior art keywords
- angle frequency
- slip angle
- calculating device
- square number
- omegas
- 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
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To obtain a slip angle frequency calculating device for induction motor using a small time constant, by calculating slip angle frequency by using a calcalculation formula of small time constant on the basis of a power source angle frequency, a square number of a primary current, an effective power and an inducted voltage. CONSTITUTION:On the basis of a line voltage, a line curent and an inducted voltage, an effective power P, a power source angle frequency omega0 and its square number omega0<2>, a square number i of a primary current i1 and a square number vm<2> of an inducted voltage vm are calculated. By putting these numbers into a calculating device consisting of multipliers 18a and 18b, a signal inverting circuit 16, time constant generating circuits 20a-20d and a divider 22, a slip angle frequency omegas is sought. omegas is calculated by using an equation omegas=[r2omega0M(M+2L2)P]/ [(L2+M)<2>Vm<2>-omegao<2>M<2>L2<2>i1<2>] (wherein, M represents a mutual inductance, a secondary leak inductance and r2 a secondary resistance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55117882A JPS5743585A (en) | 1980-08-27 | 1980-08-27 | Slip angle frequency calculating device for induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55117882A JPS5743585A (en) | 1980-08-27 | 1980-08-27 | Slip angle frequency calculating device for induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5743585A true JPS5743585A (en) | 1982-03-11 |
Family
ID=14722565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55117882A Pending JPS5743585A (en) | 1980-08-27 | 1980-08-27 | Slip angle frequency calculating device for induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5743585A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5288828A (en) * | 1993-03-08 | 1994-02-22 | The Sherwin-Williams Company | Dispersant polymers |
US5302629A (en) * | 1992-05-15 | 1994-04-12 | Berejka Anthony J | Hydrophilic acrylic pressure sensitive adhesives |
US7273378B2 (en) | 2003-09-19 | 2007-09-25 | Mitsumi Electric Co., Ltd. | Connecting device |
-
1980
- 1980-08-27 JP JP55117882A patent/JPS5743585A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302629A (en) * | 1992-05-15 | 1994-04-12 | Berejka Anthony J | Hydrophilic acrylic pressure sensitive adhesives |
US5288828A (en) * | 1993-03-08 | 1994-02-22 | The Sherwin-Williams Company | Dispersant polymers |
US5360856A (en) * | 1993-03-08 | 1994-11-01 | The Sherwin-Williams Company | Dispersant polymers |
US5430089A (en) * | 1993-03-08 | 1995-07-04 | The Sherwin-Williams Company | Dispersant polymers |
US5554682A (en) * | 1993-03-08 | 1996-09-10 | The Sherwin-Williams Company | Dispersant polymers |
US7273378B2 (en) | 2003-09-19 | 2007-09-25 | Mitsumi Electric Co., Ltd. | Connecting device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2961322D1 (en) | Substrate polarisation voltage generator circuit | |
GB2031666B (en) | Var generator with current sensitive inductance break point | |
JPS53109154A (en) | Higher harmonic remover | |
JPS5743585A (en) | Slip angle frequency calculating device for induction motor | |
JPS5743586A (en) | Slip angle frequency calculating device for induction motor | |
JPS52116831A (en) | Transistor invertor | |
JPS51132341A (en) | Non-contact point ignition device | |
JPS5360675A (en) | Converter for power and dc signal | |
SE7906053L (en) | CIRCUIT DEVICE FOR GENERATING A CONTROL VOLTAGE IN DEPENDENCE OF AN AC VOLTAGE | |
JPS5437223A (en) | All wave rectifying circuit | |
JPS52125712A (en) | Control circuit of electric motor | |
JPS5213620A (en) | Method to test the field coronal of the power equipment | |
JPS51148348A (en) | Input protection circuit | |
JPS5439806A (en) | Armature winding of revolving electrical machinery | |
JPS52107547A (en) | Earth method | |
JPS53116446A (en) | Fault point locator for power transmission line | |
JPS5426419A (en) | Ac-ac inverter circuit | |
JPS5672717A (en) | Electric power unit | |
JPS5325851A (en) | Energy sensing meh tod of inductive thunder | |
JPS5299758A (en) | Signal reading circuit at transformer insulation point | |
JPS54101157A (en) | Conductor polarity indication for polar electronic components | |
JPS5276661A (en) | Power source device | |
JPS5373177A (en) | Insulation resistance measuring system | |
JPS5268911A (en) | Control apparatus for ac generator for vehicle | |
JPS54103524A (en) | Electrical route insulation resistance supervising device |