EP4291437A1 - Verfahren zur überwachung der betriebsart einer drehzahl-veränderlichen elektrischen antriebsmaschine - Google Patents
Verfahren zur überwachung der betriebsart einer drehzahl-veränderlichen elektrischen antriebsmaschineInfo
- Publication number
- EP4291437A1 EP4291437A1 EP22712333.8A EP22712333A EP4291437A1 EP 4291437 A1 EP4291437 A1 EP 4291437A1 EP 22712333 A EP22712333 A EP 22712333A EP 4291437 A1 EP4291437 A1 EP 4291437A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- asynchronous machine
- sign
- stator
- speed
- rotor
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
-
- 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
-
- 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
- H02P23/24—Controlling the direction, e.g. clockwise or counterclockwise
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
Definitions
- asynchronous machines are used as variable-speed electrical drive machines not only for driving but also for braking.
- the asynchronous machine is typically fed by an inverter that provides current and voltage for the asynchronous machine.
- an inverter that provides current and voltage for the asynchronous machine.
- Monitoring is typically provided for the above-described safeguarding of the rail vehicle, which reliably brings about a safe state for the braking process in the event of a fault.
- the monitoring is specific to the rail vehicle and is checked as part of the approval of the rail vehicle.
- a further possibility for error avoidance is to monitor the electrical power supplied to the asynchronous machine.
- the power is obtained by multiplying the voltages applied to the electric drive machine by the associated currents.
- the power monitoring allows conclusions to be drawn about the driving force of the asynchronous machine on the rail vehicle.
- a further possibility for error avoidance consists in determining the current in the intermediate circuit of the feeding inverter by measurement as part of the monitoring and supplying it to an analysis as a measure of the power. This is described, for example, in publication WO 2016134 964 A1. wrote . By monitoring the power, the driving force of the asynchronous machine on the rail vehicle is deduced.
- the invention is based on the fact that, with sensible monitoring in detail, the absolute level of an active electrical braking or driving force is not important. it already suffices to recognize any difference at all between the operating modes "drive” and “braking” in the asynchronous machine.
- the electrical slip of the asynchronous machine also known as the slip frequency
- the slip frequency represents the difference between the supplied stator frequency and the mechanical rotor frequency in relation to the number of pole pairs of the asynchronous machine.
- the slip frequency or its sign is determined by analyzing the currents in the asynchronous machine using a model that is described below.
- the inverter which is connected upstream of the asynchronous machine for the electrical supply, is blocked in the event that the monitoring of intended braking of the rail vehicle in the asynchronous machine is in the "drive” mode. This is in the sense understood as a "safe barrier" within the framework of the approval of the rail vehicle.
- the model Since the absolute value of the torque M me is not important, the model is designed to be robust with regard to parameter changes in reality. Accordingly, there is no tracking of thermal changes in parameters.
- FIG. 3 shows the MOD model for calculating the sign of the torque M me .
- Equation (9) is implemented in FIG. 3 as a model MOD in blocks B1, B2 and B3 as follows:
- the measured speed ⁇ me is subjected to an integration Integ, taking into account the number of pole pairs p, and from this an angle a is calculated, which is used for the rotation.
- the rotating field of the stator is transferred to the rotor by induction and forms the rotor magnetic field there.
- the rotor magnetic field builds up with a rotor time constant.
- the torque or its sign DMVZ is determined by multiplying the results of the third block B3 with the conjugate-complex space vector of the stator currents.
- the model described here is very simple and therefore easy to implement. It is not dependent on special machine parameters and does not have to be adapted during operation.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021202926.4A DE102021202926A1 (de) | 2021-03-25 | 2021-03-25 | Verfahren zur Überwachung der Betriebsart einer Drehzahl-veränderlichen elektrischen Antriebsmaschine |
| PCT/EP2022/055373 WO2022200011A1 (de) | 2021-03-25 | 2022-03-03 | Verfahren zur überwachung der betriebsart einer drehzahl-veränderlichen elektrischen antriebsmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4291437A1 true EP4291437A1 (de) | 2023-12-20 |
Family
ID=80933394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22712333.8A Withdrawn EP4291437A1 (de) | 2021-03-25 | 2022-03-03 | Verfahren zur überwachung der betriebsart einer drehzahl-veränderlichen elektrischen antriebsmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4291437A1 (de) |
| DE (1) | DE102021202926A1 (de) |
| WO (1) | WO2022200011A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0677919B1 (de) * | 1994-04-14 | 1998-05-20 | MANNESMANN Aktiengesellschaft | Verfahren zur Regelung einer umrichtergespeisten Asynchronmaschine im Feldschwächebetrieb |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015203303A1 (de) | 2015-02-24 | 2016-08-25 | Siemens Aktiengesellschaft | Fahrzeug, insbesondere Schienenfahrzeug, mit Antriebssteuereinrichtung |
| EP3208138B1 (de) * | 2016-02-17 | 2022-10-12 | ALSTOM Transport Technologies | Verfahren zur schätzung eines drehmoments einer asynchronen elektrischen maschine, eine drehmomentsteuerung und ein elektrofahrzeug |
| DE102018251776A1 (de) * | 2018-12-28 | 2020-07-02 | Siemens Mobility GmbH | Fahrzeug |
-
2021
- 2021-03-25 DE DE102021202926.4A patent/DE102021202926A1/de not_active Withdrawn
-
2022
- 2022-03-03 WO PCT/EP2022/055373 patent/WO2022200011A1/de not_active Ceased
- 2022-03-03 EP EP22712333.8A patent/EP4291437A1/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0677919B1 (de) * | 1994-04-14 | 1998-05-20 | MANNESMANN Aktiengesellschaft | Verfahren zur Regelung einer umrichtergespeisten Asynchronmaschine im Feldschwächebetrieb |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022200011A1 (de) | 2022-09-29 |
| DE102021202926A1 (de) | 2022-09-29 |
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