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WO2019101372A1 - Système de commande pour commander une machine à réluctance commutée, machine à réluctance commutée, appareil et procédé - Google Patents

Système de commande pour commander une machine à réluctance commutée, machine à réluctance commutée, appareil et procédé Download PDF

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Publication number
WO2019101372A1
WO2019101372A1 PCT/EP2018/065553 EP2018065553W WO2019101372A1 WO 2019101372 A1 WO2019101372 A1 WO 2019101372A1 EP 2018065553 W EP2018065553 W EP 2018065553W WO 2019101372 A1 WO2019101372 A1 WO 2019101372A1
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WIPO (PCT)
Prior art keywords
phase current
stator poles
phase
control system
stator
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.)
Ceased
Application number
PCT/EP2018/065553
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English (en)
Inventor
Sander HEEREN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Punch Powertrain NV
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Punch Powertrain NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Punch Powertrain NV filed Critical Punch Powertrain NV
Priority to CN201880086856.1A priority Critical patent/CN111656671A/zh
Publication of WO2019101372A1 publication Critical patent/WO2019101372A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • H02P25/08—Reluctance 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
    • H02P25/08—Reluctance motors
    • H02P25/086—Commutation
    • 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
    • H02P25/08—Reluctance motors
    • H02P25/092—Converters specially adapted for controlling reluctance motors
    • H02P25/0925—Converters specially adapted for controlling reluctance motors wherein the converter comprises only one switch per phase
    • 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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/15—Controlling commutation time

Definitions

  • Control system for controlling a switched reluctance machine, a switched reluctance machine, an appliance and a method.
  • the present invention is directed at a control system for controlling a switched reluctance machine, the switched reluctance machine including: a rotor comprising one or more rotor poles; a stator comprising one or more sets of stator poles, each set including one or more stator poles comprising phase windings, such that each phase winding is associated with a respective one of the sets of stator poles; wherein the rotor is moveable relative to the stator by sequential powering of the sets of stator poles by powering the phase windings; wherein the control system is configured for controlling the powering of the sets of stator poles.
  • the invention is further directed at a method of controlling a switched reluctance machine as described above, the method comprising controlling, by a controller, the powering of the sets of stator poles.
  • the invention is further directed at a switched reluctance machine, and an appliance, such as a power generator or a vehicle.
  • This disclosed invention relates to the control of switched reluctance (SR) motors, and more particularly to the control of a switched reluctance machine operating in continuous conduction mode.
  • SR switched reluctance
  • the torque can be regulated mainly by controlling the magnitude of the phase current by switching the power electronics.
  • the phase current rapidly drops to zero.
  • the maximum torque depends on the phase current limit.
  • the peak current can be regulated by controlling the relative rotor position at which the phase is turned on. Because of the increased back EMF, the current will decrease even if the switching elements stay active. There is a small current trail after turning off the phase, which can cause a small generative torque.
  • the switch on angle has to be advanced to reach the same peak current.
  • the current trail after switching off the phase also becomes larger.
  • phase current does not become zero between commutations. This makes it a lot more difficult to predict the resulting phase current waveform resulting from certain firing angles, because it depends on the current at which the previous commutation ends.
  • Various properties such as— but not limited to— phase resistance and power electronics voltage drop, therefore have a significant influence on resulting phase current waveform.
  • the current waveform With fixed firing angles and no other way of control, the current waveform will seem to stabilize at first in continuous conduction mode, but it will continuously change because of changing environmental conditions. For example on a test bench, it can be observed the current waveform changes continuously when the motor coil temperature is changing, while firing angles remain unchanged. Compared to discontinuous conduction mode, very small changes in firing angles have a big influence on the resulting waveform. This makes the transition between discontinuous and continuous conduction mode difficult, especially if the accuracy of the motor model is not extremely good or environmental condition or not exactly known. This results in underperformance of the motor, for example due to undesired generative torque or production of insufficient torque.
  • a Control system for controlling a switched reluctance machine including: a rotor comprising one or more rotor poles; a stator comprising one or more sets of stator poles, each set including one or more stator poles comprising phase windings, such that each phase winding is associated with a respective one of the sets of stator poles; wherein the rotor is moveable relative to the stator by sequential powering of the sets of stator poles; wherein the control system is configured for controlling the powering of the sets of stator poles, the control system comprising or being operatively connected to a phase current sensor configured for providing a phase current signal for one or more of the sets of stator poles, the phase current signal being indicative of an amount of phase current present in a respective one of the sets of stator poles; wherein the control system comprises a processor configured for, upon powering of one or more of the sets of stator poles or at a predetermined position of the
  • the present invention is based on the insight that the moment of powering on of the respective sets of stator poles may easily be applied to obtain a phase current value at a fixed moment or predetermined position during each commutation.
  • the powering on may be applied as trigger to obtain the phase current value from the phase current signal received from the phase current sensor.
  • This value may then be used to control the timing of controlling the powering of respective the set of stator poles.
  • the control system may control this for example setting the timing of powering-off differently.
  • the controller may adjust the timing of switching the set of stator poles in a different powering mode, for example a freewheeling mode as explained further below in this document. The timing of various powering modes may thus be adjusted dependent on a desired correction.
  • each set of stator poles of the switched reluctance machine comprises one or more phase switches for enabling said set of stator poles to be activated and de- activated by operating the phase switches; wherein the processor is configured for providing control signals to at least one of the phase switches of a respective one of the sets of stator poles such as to activate said set of stator poles for enabling said sequential powering.
  • control signals comprising activation signals and deactivation signals for switching-on and switching-off one or more of the phase switches of the respective set of stator poles
  • the processor is configured for obtaining the phase current signal of said respective set of stator poles simultaneously with the providing of an activation signal for switching-on the phase switches such as to power the set of stator poles, and for using the phase current signal for determining a timing for providing a deactivation signal to one or more of the at least one of the phase switches for the respective set of stator poles.
  • the activation signal of the switches may conveniently be used to trigger the acquisition of the phase current value from the phase current signal.
  • other trigger signals may likewise be used for this purpose, or alternatively a dedicated trigger may be generated.
  • the use of the activation signals obviates the need for generation of a dedicated trigger which thereby reduces the overall complexity of the system.
  • phase current signal of the respective set of stator poles upon powering of the set of stator poles
  • a predetermined rotor position This position may for example be a fixed position, a position predetermined for each setpoint, or a position at which the phase switches are scheduled.
  • the controller may cooperate with a sensor to establish an angular position of the rotor, or obtain such information in a different manner.
  • the processor is configured for comparing the obtained phase current signal with a reference phase current value for said determining of the timing.
  • a comparison with a reference value may be applied to detect a difference and actively control the timing of the powering off of the respective set of stator poles dependent thereon.
  • the control system is configured for obtaining the reference phase current value from at least one of: a memory, a data repository, a wireless data network, a wireline data network, or an application specific network such as a vehicle integrated data network.
  • the reference values may be obtained ones during initialization or during testing of a switched reluctance machine, and may then be stored in a lookup table for use during operation of the switched reluctance machine.
  • the processor is configured for adjusting the timing dependent on said comparison of the phase current signal with the reference phase current value.
  • the processor is configured for at least one of: shorten a duration wherein the respective set of stator poles is powered and/or extend a duration wherein the respective set of stator poles is not powered when the phase current signal indicates a phase current value larger than the phase current reference value, such as by advancing the timing of a switching-off of the respective set of stator poles; and extend the duration wherein the respective set of stator poles is powered and/or shorten the duration wherein the respective set of stator poles is not powered when the phase current signal indicates a phase current value smaller than the phase current reference value, such as by delaying the timing of a
  • control system further comprises or is operatively connected to a position sensor configured for providing the processor with a position signal indicative of an angular position of the rotor relative to the stator.
  • a position sensor configured for providing the processor with a position signal indicative of an angular position of the rotor relative to the stator.
  • the control system to control the powering off position, i.e. the angular position wherein the respective set of stator poles is de-energized or switched off.
  • the processor is configured for determining based on the phase current signal a reference angular position of the rotor, the control system being configured for powering off of the respective set of stator poles upon the rotor reaching the reference position.
  • a switched reluctance machine comprising a control system according to one or more of the preceding claims.
  • an appliance comprising a switched reluctance machine according to claim 10, the appliance being at least one of a power generator, a vehicle, or a motor driven apparatus.
  • the present invention in accordance with a fourth aspect thereof relates to a method of controlling a switched reluctance machine, the switched reluctance machine including: a rotor comprising one or more rotor poles; a stator comprising one or more sets of stator poles, each set including one or more stator poles comprising phase windings, such that each phase winding is associated with a respective one of the sets of stator poles;
  • the rotor is moveable relative to the stator by sequential powering of the sets of stator poles; wherein the method comprises: controlling, by a controller, the powering of the sets of stator poles; and obtaining, from a phase current sensor, a phase current signal for one or more of the sets of stator poles, the phase current signal being indicative of an amount of phase current present in a respective one of the sets of stator poles; the method further comprising: upon powering of one or more of the sets of stator poles, obtaining the phase current signal of said respective set of stator poles; and determining based on the obtained phase current signal a timing for powering off of the respective set of stator poles.
  • Figure 1 schematically illustrates, in cross-section, a rotor and stator of a 4-phase 16/12 switched reluctance motor
  • Figure 2 illustrates a schematic circuit topology of a typical inverter for a four-phase switched reluctance machine
  • Figure 3A provide operational characteristics of a multiphase switched reluctance machine at low rotor speeds
  • Figure 3B provide operational characteristics of a multiphase switched reluctance machine at medium rotor speeds
  • Figure 3C provide operational characteristics of a multiphase switched reluctance machine at high rotor speeds
  • Figure 4 provides a typical performance characteristic torque vs. rotor speed for a conventionally controlled multiphase switched reluctance machine when only using discontinuous conduction mode
  • Figure 5 schematically illustrates a phase current characteristic for a multiphase switched reluctance machine operated using a control system and/or method of the invention
  • Figure 6 provides a typical performance characteristic torque vs. rotor speed for a conventionally controlled multiphase switched reluctance machine when also using continuous conduction mode;
  • Figure 7 schematically illustrates a method in accordance with an embodiment of the invention.
  • FIG 1 schematically illustrates a multiphase switched reluctance machine (SRM or SR-machine), in particular a multiphase switched reluctance machine motor 1.
  • the motor 1 comprises a stator 2 including a plurality of coils 6 and stator poles 7.
  • the motor 1 and coils 6 of the stator 2 are schematically illustrated in cross-section around the cores 8.
  • the windings of each coil 6 are visible on either side of the core 8.
  • the stator poles 7 form the cores 8 of the coils 6.
  • the motor 1 further comprises a rotor 3 including a plurality of counter poles 10 for interacting with the stator poles 7.
  • the rotor 3 is rotatable relative to the stator 2, for example by means of an axis 4.
  • the coils 6 of the stator 2 are associated with phase stages 12, 13, 14 and 15 of the motor 1, such that each coil 6 of the plurality of coils of the stator 2 is associated with one of the phase stages 12-15 respectively.
  • the phase stages 12-15 are also designated by the phase stage numbers O (phase stage 12), Q (phase stage 13), Q (phase stage 14) and O (phase stage 15).
  • phase stage O (12) is powered and the counter poles 10 of the rotor 3 are aligned with phase stage O (12).
  • phase stage Q (13) the rotor 3 will rotate clockwise to align counter poles 10 with phase stage Q.
  • the rotor 3 will rotate counter-clockwise to align counter poles 10 with phase stage O.
  • the rotor 3 can be rotated in either direction dependent on the powering sequence of the phase stages O, q, Q and ⁇ (12- 15).
  • the motor illustrated in figure 1 is a 4-phase 16/12 switched reluctance motor, consisting of 4 switchable phase stages wherein each phase stage comprises 4 stator poles 7 distributed across a full revolution, and 12 rotor poles.
  • Application of the calibration method of the present invention is not limited to this type of motor, but may be applied to other types of switched reluctance motors, e.g. 2-phase 4/2, 4-phase 8/6, 3-phase 6/4, 3-phase 12/8, 5-phase 10/8, 6-phase 12/10, 7-phase 14/12, 8-phase 16/14 or any other configuration.
  • 2-phase 4/2 4-phase 8/6, 3-phase 6/4, 3-phase 12/8, 5-phase 10/8, 6-phase 12/10, 7-phase 14/12, 8-phase 16/14 or any other configuration.
  • FIG. 1 The most commonly used topology of an inverter 18 for controlling SR-machines is shown in figure 2. Inverters for SR-machines with a different number of phases can be similar, although the number of phase associated switching stages may be different.
  • a switching stage for phase A of an SR-machine has been generally designated as I. Each phase has two switching elements and four diodes, of which two to clamp at -UDC voltage level when de-energizing the phase. This has been illustrated for phase A, element 24 schematically illustrates a coil of a stator pole of phase A.
  • the semiconductor type switching elements 22 and 23 enable switching of the phase, such as to power-on and power-off the coil 24 and to switch the phase into a freewheeling state, as explained below.
  • the clamping diodes 27 and 28 enable to clamp the coil at -UDC voltage level, upon powering-off phase A.
  • phase voltage is +U DC .
  • the phase A is energised (ON’), and the conductive path is from switching element 22 via coil (or coils) 24 to switching element 23.
  • the phase voltage is near 0V.
  • the phase is‘freewheeling’ (‘FW’), and current is allowed to flow freely through the phase (free-wheeling).
  • the applied phase voltage is - UDC (if there is any current flowing through the phase).
  • the phase is de energising (OFF’).
  • the conductive path is from diode 27 via coil (or coils) 24 to diode 28.
  • FIGS. 3A to 3C Operational characteristics of an SR-machine are illustrated in figures 3A to 3C for low rotor speeds, medium rotor speeds and high rotor speeds.
  • curve 29 illustrates the phase current i dependent on the angular position of the rotor for one of the phase stages of an SR-machine.
  • the generated torque T is illustrated as curve 35
  • curve 36 illustrates the flux linkage y.
  • the surface 40 spanned by curve 38 is indicative of the amount of work delivered by a single commutation of the phase stage.
  • figures 3B and 3C illustrate these characteristics for medium rotor speeds and high rotor speeds.
  • curve 53 illustrates the phase current i dependent on the angular position of the rotor for the respective phase stage.
  • the generated torque T is illustrated as curve 55, whereas curve 56 illustrates the flux linkage y.
  • the surface 58 spanned by curve 59 is indicative of the amount of work delivered by a single
  • curve 63 illustrates the phase current i dependent on the angular position of the rotor for the respective phase stage.
  • the generated torque T is illustrated as curve 65, whereas curve 66 illustrates the flux linkage y.
  • the surface 68 spanned by curve 69 is indicative of the amount of work delivered by a single commutation of the phase stage.
  • the torque T 35 can be regulated mainly by controlling the magnitude of the phase current I 29 by switching the power electronics.
  • the phase stage is powered at switch- on angle 30, the phase current i 29 thereafter rapidly building up in the phase stage.
  • the phase current i rapidly drops to zero.
  • the maximum torque generated during the commutation depends on the phase current limit.
  • the peak current 53 can be regulated by controlling the relative rotor position 51 at which the phase is turned on. Because of the increased counter electromotive force (the back EMF), the current 53 will decrease even if the switching elements stay active prior to the turn-off angle 52. There is a small current trail after turning off the phase at 52, which can cause a small generative torque T as can be seen in 55.
  • the switch on angle 51 has to be advanced (moved to the left in the diagram) to reach the same peak current 53.
  • the current trail after switching off the phase at 52 also becomes larger (the end-point thereof moving further to the right in curve 53).
  • the current trail will reach up to the angle where the next commutation will start. This is where the high rotor speed region starts, which is visualized in figure 3C. Reducing the dwell angle (angle between turning on and off the phase between locations 61 and 62) can avoid this situation but also reduces power and generated work W with increasing speed.
  • the situation where the current always reaches zero before starting the next commutation is called‘discontinuous conduction mode’.
  • the motor 1 may be controlled in the high speed region.
  • continuous conduction mode also referred to as‘continuous current mode’.
  • phase current 63 does not become zero between commutations. This makes it a lot more difficult to predict the resulting phase current waveform resulting from certain firing angles 61 and 62, because it depends on the current i at which the previous commutation ends. Properties like phase resistance, power electronics voltage drop therefore have a significant influence on resulting phase current waveform.
  • the current waveform will seem to stabilize at first in continuous conduction mode, but it will continuously change because of changing environmental conditions. For example on a test bench, it can be observed the current waveform changes continuously when the motor coil
  • Performance characteristics of a conventionally controlled SR- machine are illustrated in figure 4 in a torque vs. speed diagram.
  • the amount of delivered torque T is determined by the current limit though the coils and is therefore a constant value (region 70).
  • region 70 the amount of torque will decrease as the speed of the rotor increases. The decrease will be proportional with l/w, as illustrated in region 71.
  • region 72 reduction of the dwell angle to control the phase current in the phase stage results in a decrease of the torque T which is proportional with 1/w 2 .
  • FIG. 5 illustrates a the behavior of an SR-machine control in accordance with the principles of the present invention.
  • the phase current vs. time is illustrated.
  • the phase current in the phase stage is compared to a reference phase current 78.
  • the processor of the control system determines how to adjust the ON-state of the phase stage (i.e.
  • the ON-state is adjusted by adjusting one or more of the OFF-angle and/or FW-angle.
  • the OFF-angle is the angular position at which the phase stage is switched to the OFF-state; with reference to figure 2, this is the state wherein both switching elements 22 and 23 are switched off.
  • the FW-angle is the angular position at which the phase stage is switched to the freewheeling state; with reference to figure 2, this is the state wherein one of the switching elements 22 or 23 is switched off, while the other one is switched on.
  • the processor only has a certain budget in terms of angular position (and hence time within the commutation) to extend the length of ON-state of the phase stage. This is because suboptimal performance due to, for example, a generation of a counter torque that interferes with operation of the next phase stage is to be prevented.
  • the processor calculates the ON-state adjustment Ai (reference 76) required to close the gap between the phase current at switch-on and the reference level 78 at the start of the next commutation.
  • a maximum extension Ai of the ON-state is added to the first commutation.
  • such an adjustment of the ON-state may be implemented by postponing the switch-off moment at which the phase stage is powered off, in other words by shifting the angular position (OFF-angle) at which the phase stage is switched off. This will extend the freewheeling state with duration Ai.
  • adjusting the phase current at switch-on of the next commutation may also be obtained by adjusting the FW-angle. This will affect the phase current level during the ON-state, and thereby also the remaining phase current after switching-off.
  • the maximum adjustment is implemented by the processor, and although the gap 80 between the phase current at the switch on time 79 and the reference level 78 is smaller upon the start of the second commutation, there still is a relatively large gap.
  • the processor Upon switching-on the phase stage during the second commutation at 79, the processor again obtains the actual phase current from the phase current sensor in the switched reluctance machine, and compares it to the reference phase current 78.
  • An adjustment of the ON-state is calculated by the processor, and the ON-state is adjusted by postponing the switch off moment by switching off at a later angular position. This again adjusts the ON-state of the phase stage by an amount A 2 (reference 82) during the freewheeling state. Like Di, A 2 resembles the maximum amount of
  • the adjustment A 2 82 is more or less equal to the adjustment Ai 76.
  • the phase current drops, and upon switch-on at 88, a measurement of the actual phase current is obtained by the processor to calculate a difference 89 with the reference phase current 78.
  • the reference phase current level at switch on time 78 is set such that, at the given rotor speed and under the given operational conditions (temperature, required torque, etc.) a maximum amount of torque is generated by obtaining a peak phase current 91 that approximates a safety level 90 under the given conditions.
  • Both the reference phase current 78 and the safety level 90 may be determined during test runs or simulations of the switched reluctance machine, for example during factory tests. These values may for example be stored in a look up table, which may be available from a memory in the control system. Optionally, such a look up table may also store the desired adjustments or A’s of the ON-state dependent on the measured difference in phase current upon switching on the phase stage.
  • These adjustments may be stored as individual adjustments to one or more of the OFF-angle or FW-angle, or as absolute or relative OFF-angles and/or FW-angles. As may be appreciated, obtaining these values from a look up table during operation could provide more flexible control possibilities.
  • FIG. 6 The increased performance obtained using a control method of the present invention is illustrated in figure 6.
  • the deliverable torque dependent on the rotor speed is illustrated for a switched reluctance machine controls using the control system or control method in accordance with the present invention.
  • the curve 70’, 71’, 72’ illustrates the torque in the low rotor speed range, the mid rotor speed range and the high rotor speed range. These parts 70’, 71’ and 72’ of the curve are comparable to the corresponding parts of the curve of figure 4 (70, 71 and 72).
  • the advantages of the present control system and control method are obtained in the high speed region, in continuous conduction mode. This is illustrated by the area 92 between curve 72’ of the high rotor speed region, and 72 of the
  • the amount of torque that may be delivered in the high speed range 72’ is larger than with the conventional control methods.
  • the decrease of the torque T which is proportional to l/w in the mid speed range 71’, is continued at rate l/w in the high speed range 72’.
  • the amount of torque gained is thus considerable as compared to conventional control methods.
  • a control method in accordance with the present invention is schematically illustrated in figure 7.
  • the look up table the reference phase current level and the safety level may be obtained.
  • the safety level may be obtained from the look up table.
  • the reference phase current values provided in accordance with the look up table and the resulting adjustments of the on- time, will cause the system to operate within the safety level. Therefore, to obtain the safety level of the current phase (reference 90 in figure 5) may purely be advantageous for monitoring purposes, e.g. to detect whether the switch reluctance machine malfunctions.
  • step 102 upon start of the commutation, the switching elements of the phase stage are switched-on such as to power the phase stage at the ON-angle. Simultaneously, the phase current is measured by the phase current sensor and the actual phase current value is obtained by the processor.
  • step 104 the obtained phase current value is compared with the reference phase current value obtained from the memory in step 100. Either from a look up table or from a different algorithm or data obtained from a network or other data repository, the processor determines the required adjustment of the ON-state for approaching the reference phase current value at the start of the next commutation.
  • the processor may shift the freewheeling- and OFF angles in order to extend or reduce the duration of the powered on state of the phase stage. The effect of this is illustrated for example in figure 5, as discussed hereinabove.
  • step 108 the actual switching to the freewheeling state and the off- state during commutation will be performed by the processor, at the adapted angles.
  • any reference signs shall not be construed as limiting the claim.
  • the term 'comprising' and‘including’ when used in this description or the appended claims should not be construed in an exclusive or exhaustive sense but rather in an inclusive sense.
  • the expression ‘comprising’ as used herein does not exclude the presence of other elements or steps in addition to those listed in any claim.
  • the words‘a’ and‘an’ shall not be construed as limited to‘only one’, but instead are used to mean‘at least one’, and do not exclude a plurality.
  • Features that are not specifically or explicitly described or claimed may be additionally included in the structure of the invention within its scope. Expressions such as:

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  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

La présente invention concerne un système de commande pour commander une machine à réluctance commutée comportant : un rotor comprenant des pôles de rotor ; un stator comprenant des ensembles de pôles de stator, chaque ensemble comportant des pôles de stator comprenant des enroulements de phase. Le rotor est mobile par alimentation séquentielle des ensembles de pôles de stator. Le système de commande est configuré pour commander l'alimentation, et comprend un capteur de courant de phase pour fournir un signal de courant de phase pour les ensembles de pôles de stator, indiquant une quantité de courant de phase de l'un des ensembles de pôles de stator. Le système de commande comprend un processeur pour, lors de l'alimentation des ensembles de pôles de stator ou au niveau d'une position prédéterminée du rotor, obtenir le signal de courant de phase, et pour déterminer, sur la base du signal de courant de phase obtenu, un positionnement temporel pour commander l'alimentation de l'ensemble respectif de pôles de stator.
PCT/EP2018/065553 2017-11-24 2018-06-12 Système de commande pour commander une machine à réluctance commutée, machine à réluctance commutée, appareil et procédé Ceased WO2019101372A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880086856.1A CN111656671A (zh) 2017-11-24 2018-06-12 用于控制开关磁阻机的控制系统、开关磁阻机、装置和方法

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BE2017/5859 2017-11-24
BE2017/5859A BE1025735B1 (nl) 2017-11-24 2017-11-24 Regelsysteem voor het regelen van een geschakelde reluctantiemachine, een geschakelde reluctantiemachine, een apparaat en een werkwijze

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WO2019101372A1 true WO2019101372A1 (fr) 2019-05-31

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BE (1) BE1025735B1 (fr)
WO (1) WO2019101372A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115378197A (zh) * 2021-05-21 2022-11-22 宁波方太厨具有限公司 开关磁阻电机及其控制方法、抗扰动方法、设备和介质
CN116317811A (zh) * 2021-12-21 2023-06-23 莱克电气股份有限公司 开关磁阻电机的控制方法、装置、烹饪设备和存储介质

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CN116317811A (zh) * 2021-12-21 2023-06-23 莱克电气股份有限公司 开关磁阻电机的控制方法、装置、烹饪设备和存储介质

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