EP4500685A1 - Procédé de commande d'un moteur électrique en cas d'anomalie de mesure de la vitesse - Google Patents
Procédé de commande d'un moteur électrique en cas d'anomalie de mesure de la vitesseInfo
- Publication number
- EP4500685A1 EP4500685A1 EP23718664.8A EP23718664A EP4500685A1 EP 4500685 A1 EP4500685 A1 EP 4500685A1 EP 23718664 A EP23718664 A EP 23718664A EP 4500685 A1 EP4500685 A1 EP 4500685A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electric motor
- speed
- electrical control
- motor
- electrical
- 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
- H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
- H02P21/0021—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control using different modes of control depending on a parameter, e.g. the speed
-
- 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
- H02P21/12—Stator flux based control involving the use of rotor position or rotor speed sensors
-
- 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
-
- 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
- H02P21/18—Estimation of position or speed
-
- 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
- H02P21/24—Vector control not involving the use of rotor position or rotor speed sensors
-
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
-
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
- H02P25/026—Synchronous motors controlled by supply frequency thereby detecting the rotor position
-
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/03—Synchronous motors with brushless excitation
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/028—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
-
- 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
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
- H02P2207/055—Surface mounted magnet motors
Definitions
- the invention relates to the control of an electric motor and more particularly to the control of an electric motor following an anomaly in measuring the speed of its rotor.
- a rotor speed sensor is generally used in order to construct a robust and efficient control law.
- the principle of controlling an electric motor without a position sensor based on fundamental electrical quantities includes a motor controlled in voltage by an electric controller.
- the electrical controller receives as input a measurement of the current in the motor, a value of the motor speed estimated from the voltage and current of the motor and a mechanical torque reference provided by a mechanical controller, the mechanical controller determining the reference of mechanical torque from a speed or position reference, speed estimation and control parameters of the electric controller.
- the principle of controlling an electric motor without a position sensor from high frequency electrical quantities differs from the principle of Figure 1 in that it includes a high frequency module upstream of the motor and that the estimate made is made on the speed or position of the motor.
- Either the control law is configured to operate with the information given by the position sensor, or the control law is configured to operate without this information. Reconfiguration from one to the other can only be done after a shutdown phase. This causes the current movement to end in an uncontrolled manner. A faulty position/speed measurement value will, through regulation, generate voltages on the motor which do not correspond to the state of the motor. This can lead to a set of inappropriate behaviors that will need to be captured through different monitoring functions.
- the main aim of the present invention is therefore to propose a solution for reconfiguring the motor control mode on the fly, to compensate for the failure of an engine position sensor.
- On-the-fly reconfiguration of the motor control mode means reconfiguration in operation. That is to say a reconfiguration of the motor control mode while maintaining the motor and its control means in operation.
- a method for controlling a synchronous electric motor comprising generation of a mechanical torque reference from a mechanical setpoint, measurement of the position and a determining the speed of the electric motor from the position measurement, measuring the current generated by the electric motor, generating voltage references from the mechanical torque reference, and generating control voltages from the reference voltages.
- the method further comprises monitoring a position measurement anomaly of the electric motor, an adaptation of the electrical control gains as a function of whether or not a position measurement anomaly of the electric motor is detected, the voltage references generated depending on the values of the electrical control gains.
- the method according to the invention thus makes it possible to provide continuity of control of the voltage of the electric motor even in the presence of a major failure such as the loss of measurement information on the position of the motor. Detecting the failure then reconfiguring the electrical control means through adaptation of the gains, and alternatively the current reference, makes it possible to guarantee the performance of the mechanical movement of the electric motor. And this without having to stop the motor, and without having to stop the control, that is to say without having to turn off and reset the motor control.
- Monitoring a position measurement anomaly of the electric motor also includes checking the consistency of the position or speed information with the current information.
- Current information means data from current measurements and transformations of current measurements.
- monitoring a position measurement anomaly of the electric motor comprises an estimation of the speed of the electric motor from the speed determined from the position measurement and the current measured at the terminals of the motor, a comparison of the estimated speed with the determined speed, and a reporting of a measurement anomaly based on the result of the comparison with respect to a detection threshold.
- an electrical system for controlling a synchronous electric motor comprising a mechanical control block configured to receive a mechanical setpoint and deliver a mechanical torque reference, an electrical control block configured to deliver a voltage reference as a function of the torque reference delivered by the mechanical control block, a power block configured to deliver a control voltage to the electric motor as a function of the voltage reference delivered by the electrical control block, a voltage sensor position of the rotor of the electric motor that said electrical system controls, and means for measuring the current at the terminals of the electric motor controlled by the electrical control system.
- the electrical control block further comprises:
- an electrical control gain adaptation module configured to adapt the gains depending on whether or not a position measurement anomaly of the electric motor is detected
- control module configured to deliver voltage references from the mechanical torque reference, the current measured at the terminals of the electric motor, and the electrical control gains delivered by the adaptation module (94).
- the anomaly detection means comprises a module for estimating the speed of the motor from the voltage and the current of the motor, a comparator configured to compare the speed determined to the speed measured by the sensor, and a module for reporting a measurement anomaly based on the result of the comparison in relation to a detection threshold.
- the power control block further comprises a power converter.
- an electrical system comprising an electric motor coupled to a load, and an electrical control system as defined above coupled to the electric motor.
- Figure 1 schematically represents an electrical system 1 comprising a synchronous electric motor 2 and a control circuit 4 according to one embodiment of the invention.
- FIG. 2 Figure 2 schematically presents in more detail an electrical control system 4 of the synchronous electric motor 2 of Figure 1.
- Figure 3 is a schematic representation in more detail of an electrical control block 9 of Figure 2.
- FIG. 4 Figure 4 schematically presents a flowchart of a control method implemented by the electrical control system 4 of the synchronous electric motor 2 according to one mode of implementation of the invention.
- Figure 1 is schematically represented an electrical system 1 comprising a synchronous electric motor 2 with permanent magnets coupled to a load 3 and an electrical control system 4 coupled to the electric motor 2.
- the electrical control system 4 of the synchronous electric motor 2 comprises a control assembly 5, a position sensor 6 configured to measure the speed of the rotor of the synchronous electric motor 2, and means for measuring the voltage and current across the terminals of the synchronous electric motor 2.
- the control assembly 5 comprises a mechanical control block 8 configured to receive a mechanical setpoint Cm and deliver a reference of mechanical torque R c , an electrical control block 9 configured to deliver a voltage reference R T as a function of the torque reference Rc delivered by the mechanical control block 8, and a power block 10 configured to deliver a voltage of command T c to the electric motor 2 as a function of the voltage reference R T delivered by the electric control block 9.
- the electrical control block 9 comprises a means 92 for detecting a measurement anomaly of the position sensor 6, a module 94 of adaptation of electrical control gains configured to adapt the gains depending on the detection or not of a position measurement anomaly of the synchronous electric motor 2, a control module 96 configured to deliver voltage references R T from the mechanical reference R c , the current measured at the terminals of the electric motor 2 by the current measurement means 7, and the electrical control gains delivered by the adaptation module 94.
- the anomaly detection means 92 comprises a module 922 for estimating the speed of the motor from the voltage and current of the motor, a comparator 924 configured to compare the speed determined to the speed measured by the sensor of position 6, and a module 926 for signaling a measurement anomaly based on the result of the comparison in relation to a detection threshold.
- FIG 4 is shown a flowchart of a control method implemented by the electrical control system 4 of the synchronous electric motor 2.
- the method comprises a first step 400 of generating a mechanical torque reference from a mechanical instruction.
- a measurement of the position is then carried out using the position sensor 6 and a determination of the speed of the electric motor 2 from the position measurement, and, in a step 410, a measurement of the current generated by the electric motor 2.
- a step 430 we check the consistency of the position or speed information with the current information, and we determine if there is or not an anomaly, in a step 435, between said information.
- the information consistency check includes in particular an estimation of the speed or the position of the motor from electrical quantities such as the current generated by the motor and a comparison of this estimated speed or this estimated position in relation to the measured position. or a speed determined from the measured position, this comparison can be carried out by calculating the difference between the estimated speed and the measured speed and by checking that this difference remains limited to an expected range of variation with regard to the measurement noise and of the regulation dynamics.
- step 420 an estimate of the speed of the electric motor 2 from the position measurements and the current measured at the terminals of the motor in particular.
- step 445 the voltage references for the selected electrical control gains are delivered to the power block 10.
- the voltage block delivers a control voltage to the synchronous electric motor 2.
- Estimating the speed of the synchronous electric motor 2 with permanent magnets from the electrical quantities (voltage and current) of the electric motor can be carried out in different ways.
- the following mathematical model represents a modeling of a synchronous electric motor with surface permanent magnets (without salience) with the physical quantities of three phases S1, S2, S3, with the resistance R s , the current i on each of the phases i S i , is2, iss, and the voltage on each of the phases u s1 , U s2 , u S 3, and the electric flow on each of the phases ⁇ S1 , ⁇ s2 , ⁇ s3 .
- the quantities (u s i, Us2, u s3 ) are sinusoidal quantities phase shifted by 2K/3.
- the quantities (u sa , u s p) are sinusoidal quantities phase shifted by TI/2.
- the following model represents in matrix form a synchronous electric motor with permanent magnets in the following fixed frame:
- PLL Phase lock loop
- the comparison between on the one hand the information obtained by the speed measurement, and on the other hand the information obtained by a speed estimation makes it possible to validate the consistency of the position or speed measurement.
- the speed estimate can be directly a value obtained from electrical quantities, for example [Math 41] or [Math 52]; it is also possible to use a static or dynamic combination of speed measurement and speed estimation from electrical quantities.
- the validation of coherence consists, for example, of calculating the difference between the two pieces of information, and of defining an acceptable difference threshold between these two estimates, which must be equal in steady state, for example 1 Hz.
- a classic control of the permanent magnet electric motor consists of calculating a reference voltage vector in the following control reference:
- ⁇ s corresponds to the pulsation of the control mark
- 0 S corresponds to the pulsation of the control mark
- ⁇ corresponds to the estimated engine speed
- the gain matrices K CTRL-P and K CTRL-r must be calculated to ensure control performance. This performance depends on the dynamics of the estimated speed. It is appropriate to determine a set of gains (K CTRL-P , K CTRL-I) by speed estimation strategy, whether the estimated speed of the motor comes from the measurement, or from an estimation strategy based on electrical quantities, or a mixture of the two.
- the reference voltage is then transformed into the three voltages to be applied to the motor phases, in two stages: from a rotation of the angle of the control mark
- the invention thus makes it possible to provide continuity of control of the voltage of the electric motor even in the presence of a major failure such as loss of information. measuring the position of the motor. Detecting the failure then reconfiguring the electrical control means through adaptation of the gains, and alternatively the current reference, makes it possible to guarantee the performance of the mechanical movement of the electric motor.
- the invention consists of reconfiguring the motor control mode on the fly to compensate for a failure of the position sensor, by controlling the movement. This on-the-fly reconfiguration is made possible by the invention thanks to a control of the consistency of the speed/position information with regard to the electrical measurements, and to an adaptation of the controller according to this measurement consistency.
- the invention thus proposes a control of the consistency of the speed/position information with regard to the electrical measurements thus allowing detection of position measurement anomaly from an electrical/mechanical behavioral analysis, a reconfiguration of the electrical controllers and mechanical to control the movement, and adaptive control between a control means with speed/position measurement information and a control means with information on the measurements of electrical quantities, without speed/position measurement information.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2202661A FR3133957B1 (fr) | 2022-03-25 | 2022-03-25 | Procédé de commande d’un moteur électrique en cas d’anomalie de mesure de la vitesse |
| PCT/FR2023/050426 WO2023180675A1 (fr) | 2022-03-25 | 2023-03-24 | Procede de commande d'un moteur electrique en cas d'anomalie de mesure de la vitesse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4500685A1 true EP4500685A1 (fr) | 2025-02-05 |
Family
ID=82942643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23718664.8A Pending EP4500685A1 (fr) | 2022-03-25 | 2023-03-24 | Procédé de commande d'un moteur électrique en cas d'anomalie de mesure de la vitesse |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250211145A1 (fr) |
| EP (1) | EP4500685A1 (fr) |
| JP (1) | JP2025510246A (fr) |
| FR (1) | FR3133957B1 (fr) |
| WO (1) | WO2023180675A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7002318B1 (en) * | 2004-09-23 | 2006-02-21 | General Motors Corporation | Position sensor fault tolerant control for automotive propulsion system |
| US8664901B2 (en) * | 2012-02-15 | 2014-03-04 | GM Global Technology Operations LLC | Method and system for estimating electrical angular speed of a permanent magnet machine |
-
2022
- 2022-03-25 FR FR2202661A patent/FR3133957B1/fr active Active
-
2023
- 2023-03-24 US US18/850,415 patent/US20250211145A1/en active Pending
- 2023-03-24 WO PCT/FR2023/050426 patent/WO2023180675A1/fr not_active Ceased
- 2023-03-24 JP JP2024556714A patent/JP2025510246A/ja active Pending
- 2023-03-24 EP EP23718664.8A patent/EP4500685A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250211145A1 (en) | 2025-06-26 |
| FR3133957A1 (fr) | 2023-09-29 |
| JP2025510246A (ja) | 2025-04-14 |
| WO2023180675A1 (fr) | 2023-09-28 |
| FR3133957B1 (fr) | 2025-04-18 |
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