ES2025867A6 - Method and arrangement for determining the magnetic flux of asynchronous machines - Google Patents
Method and arrangement for determining the magnetic flux of asynchronous machinesInfo
- Publication number
- ES2025867A6 ES2025867A6 ES9000030A ES9000030A ES2025867A6 ES 2025867 A6 ES2025867 A6 ES 2025867A6 ES 9000030 A ES9000030 A ES 9000030A ES 9000030 A ES9000030 A ES 9000030A ES 2025867 A6 ES2025867 A6 ES 2025867A6
- Authority
- ES
- Spain
- Prior art keywords
- flux
- model
- image
- stator
- estimated
- 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.)
- Expired - Fee Related
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
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
- H02P21/141—Flux estimation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
- G06G7/62—Analogue computers for specific processes, systems or devices, e.g. simulators for electric systems or apparatus
- G06G7/63—Analogue computers for specific processes, systems or devices, e.g. simulators for electric systems or apparatus for power apparatus, e.g. motors, or supply distribution networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Ac Motors In General (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
For a method for determining the magnetic flux of asynchronous machines, in which the rotor flux is estimated using a machine model formed by measurement parameters of the asynchronous machine, the intention is to achieve substantially higher accuracy with low expenditure. It is intended to be largely independent of rotational speed and to exhibit little sensitivity to deviations of the modelling parameters from the true values. This object is achieved by using a multi-stage machine model having a first model (1) for the stator and a second model (2) for the rotor, by determining computed values of the state variables of the rotor flux in various ways in both models and by feeding back the difference in the computed values to the first model (1). In a particular embodiment, on the one hand, in the first model (1), the estimated value of the rotor flux < IMAGE > is determined as a linear combination of the stator measurement parameters < IMAGE > and of an estimated magnitude of the stator flux < IMAGE > from the output of a flux integrator (7) and, on the other hand, in the second model (2), using a computed estimated value of the stator current < IMAGE > a further estimated rotor flux value < IMAGE > which acts as a pseudoparameter is determined, and the difference between the two flux values < IMAGE > is fed back to the input of the flux integrator (7).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3900539A DE3900539A1 (en) | 1989-01-07 | 1989-01-07 | Method and arrangement for determining the magnetic flux of asynchronous machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2025867A6 true ES2025867A6 (en) | 1992-04-01 |
Family
ID=6371819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9000030A Expired - Fee Related ES2025867A6 (en) | 1989-01-07 | 1990-01-05 | Method and arrangement for determining the magnetic flux of asynchronous machines |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU4773090A (en) |
| DE (1) | DE3900539A1 (en) |
| ES (1) | ES2025867A6 (en) |
| NO (1) | NO900056L (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212726A1 (en) * | 1992-03-21 | 1993-12-09 | Holger Dipl Ing Rapp | Method and device for regulating three-phase machines with dynamic high-quality detection of their stator voltages required in the steady state |
| FI94201C (en) * | 1993-03-17 | 1995-07-25 | Abb Stroemberg Drives Oy | Method for determining the stator flux estimate of an asynchronous machine |
| JP5044188B2 (en) * | 2006-10-16 | 2012-10-10 | 株式会社東芝 | Magnetic flux measuring device for static induction electrical equipment, magnetic flux measuring method, and synchronous switching control device for circuit breaker |
| US8742767B2 (en) * | 2009-11-03 | 2014-06-03 | Rockwell Automation Technologies, Inc. | Parameter estimation system and method for an induction motor |
| DE102019110879A1 (en) * | 2019-04-26 | 2020-10-29 | Schaeffler Technologies AG & Co. KG | Method for determining a motor parameter of an electric motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3026202A1 (en) * | 1980-07-10 | 1982-02-04 | Siemens AG, 1000 Berlin und 8000 München | TURNFIELD MACHINE DRIVE WITH A CONVERTER-DRIVEN TURNFIELD MACHINE AND A CONVERTER CONTROLLER CONNECTED WITH TWO AC VOLTAGE INTEGRATORS AND A COMPUTER MODEL CIRCUIT |
| DE3034275A1 (en) * | 1980-09-11 | 1982-04-22 | Siemens AG, 1000 Berlin und 8000 München | DEVICE FOR DETERMINING THE PARAMETER VALUES FOR STANDAL RESISTANCE, MAIN INDUCTIVITY AND SPREADING INDUCTIVITY OF AN ASYNCHRONOUS MACHINE |
-
1989
- 1989-01-07 DE DE3900539A patent/DE3900539A1/en not_active Ceased
-
1990
- 1990-01-05 ES ES9000030A patent/ES2025867A6/en not_active Expired - Fee Related
- 1990-01-05 NO NO90900056A patent/NO900056L/en unknown
- 1990-01-05 AU AU47730/90A patent/AU4773090A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| NO900056D0 (en) | 1990-01-05 |
| DE3900539A1 (en) | 1990-07-12 |
| AU4773090A (en) | 1990-07-12 |
| NO900056L (en) | 1990-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19991108 |