WO2010034906A2 - Actionneur electrique qui integre deux onduleurs de tension controles en courant alimentant une machine electrique et qui est reconfigurable en presence d'un defaut - Google Patents
Actionneur electrique qui integre deux onduleurs de tension controles en courant alimentant une machine electrique et qui est reconfigurable en presence d'un defaut Download PDFInfo
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- WO2010034906A2 WO2010034906A2 PCT/FR2009/001126 FR2009001126W WO2010034906A2 WO 2010034906 A2 WO2010034906 A2 WO 2010034906A2 FR 2009001126 W FR2009001126 W FR 2009001126W WO 2010034906 A2 WO2010034906 A2 WO 2010034906A2
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- Prior art keywords
- actuator
- inverter
- bus
- machine
- connecting member
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/49—Combination of the output voltage waveforms of a plurality of converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53873—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with digital control
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- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- 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
-
- 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
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
- H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration
Definitions
- Electric actuator which integrates two voltage inverters controlled by current supplying an electrical machine and which is reconfigurable in the presence of a defect
- the invention relates to an electric actuator intended to equip an aircraft to control equipment of this aircraft.
- control systems actually used in the aeronautical field are hydraulic: they include a hydraulic actuator type jack, and a hydraulic network interposed between the cylinder and a control member.
- the network then comprises two separate and independent hydraulic circuits: in the event of failure of one of the circuits, for example due to a leak, the other circuit remains available to control the hydraulic actuator.
- actuators whose motors are electrical machines, in particular synchronous type permanent magnets, which can be enslaved in speed, position or effort, while being sufficiently light.
- the speed variation of these machines requires the variation of the frequency of the current or of the voltage applied to them, which requires the integration of a static converter, to vary this command according to the control variables.
- this converter may consist of a non-controlled diode rectifier or a controlled rectifier, associated with inverter.
- this type of inverter comprises arms each carrying two controlled switches, or transistors that can lock in an open or closed state. When one of these transistors is in fault, the steering is significantly complicated by the fact that the intensity of the current flowing through the arms remaining valid can no longer be controlled.
- the power supply network may be a single three-phase network sufficiently secure to be considered reliable.
- the object of the invention is to propose an actuator arrangement having an optimum level of availability, particularly with respect to a failure of a controlled switch of the inverter which is often a transistor, and that can be used with the different architectures of power supply network possible.
- the subject of the invention is an electric actuator, comprising a polyphase electrical machine, at least one connecting member to a power supply network, a first and a second bus connected in parallel between the machine and each connection, the first and the second bus respectively comprising a first and a second inverter for controlling this frequency machine, each inverter having several arms each provided with two controlled switches, each phase of the machine being continuously connected to the two switches of an arm the first inverter on the one hand, and the two switches of an arm of the second inverter on the other hand, and controlled means of connection and disconnection interposed between the buses and each connecting member.
- the actuator can be controlled to feed the machine via one or both of its buses, which offers several possibilities of reconfiguration either in normal operation, or in case of a fault appearing at the level of a power supply network, an inverter or a rectifier, or more generally at a bus, or at a winding of the electric machine.
- the controlled connection means make it possible to completely isolate an inverter from the power supply network or networks in order to configure the star machine with a central node, which makes it possible to control the current in each winding.
- connection means further enable the actuator to be powered in normal operation with one or more electrical networks, so that the actuator can be used with the various configurations of the actuator. power supply network possible.
- I / invention also relates to an actuator as defined above, wherein the controlled connection and disconnection means comprise a first contactor interposed between a connecting member to a single network and the first bus, and a second contactor interposed between this same connection member and the second bus.
- the invention also relates to an actuator as defined above, comprising a first and a second connecting member for supplying the actuator from two separate power supply networks, and wherein the controlled connection and disconnection means comprise a first contactor connecting the first bus to the first connecting member and a second contactor connecting the second bus to the second connecting member.
- the invention also relates to an actuator as defined above, comprising a first and a second connecting member for supplying said actuator with two separate supply networks, and wherein the controlled connection and disconnection means comprise a first contactor connected to the first bus, a second contactor connected to the second bus, and a two-position switch for connecting the first and the second contactor, either to the first connecting member or to the second connecting member.
- the invention also relates to an actuator as defined above, comprising a first and a second connecting member for supplying said actuator with two separate power supply networks, and wherein the controlled connection and disconnection means comprise a first switch three-position, connected to the first bus and the first and second connecting member, and a second three-position switch connected to the second bus and the first and second connecting member.
- the invention also relates to an actuator as defined above, comprising an electrical storage member and a two-position switch which are interposed between the connecting member and the inverter of one of the buses, this storage member having a terminal connected to the connection member and to the inverter and a terminal connected to the two-position switch to be connected either to the connection member for recharging or to the inverter in order to feed it or charge.
- the invention also relates to an actuator as defined above, comprising a multiple switch connected to the two switches of each arm of one of the inverters, this switch being able to occupy an open position in which these arms are isolated from each other or a closed position in which these arms are electrically connected to each other.
- FIG. 1 is a diagram of a first embodiment of the invention in which the actuator comprises connection means including two contactors connecting it to a single power supply network;
- FIG. 2 is a diagram of a variant of the first embodiment of the invention in which the actuator is equipped with additional triple switches;
- FIG. 3 is a diagram of a second embodiment of the invention in which the actuator comprises connection means including two contactors connecting it to two electrical networks each supplying an inverter of this actuator;
- FIG. 4 is a diagram of a variant of the second embodiment of the invention in which the actuator is equipped with additional triple switches;
- FIG. 5 is a diagram of a third embodiment of the invention in which the actuator comprises connection means including two contactors and a controlled switch for selectively connecting each inverter to one or the other of two separate power grids;
- FIG. 6 is a diagram of a variant of the third embodiment of the invention in which the actuator is equipped with additional triple switches;
- FIG. 7 is a diagram of a fourth embodiment of the invention in which the actuator comprises connection means including two contactors in the form of controlled switches for selectively connecting each inverter to one or the other of two separate power grids;
- FIG. 8 is a diagram of a variant of the fourth embodiment of the invention in which the actuator is equipped with additional triple switches;
- FIG. 9 is a diagram of a fifth embodiment of the invention in which the actuator comprises an electrical energy storage member and connection means including two contactors connecting it to a single electrical network;
- FIG. 10 is a diagram of a sixth embodiment of the invention in which the actuator comprises an electrical energy storage member and connection means including a contactor in the form of a controlled switch connecting it to a single electrical network;
- FIG. 11 is a diagram of a variant of the sixth embodiment of the invention in which the actuator is provided with additional triple switches.
- the actuator according to the invention comprises a three-phase electrical machine 101, including three windings 102, 103, 104, as well as a first and a second separate bus 106 and 107. These buses convert the alternating current of the network, having a fixed or variable frequency, in an alternating current of variable frequency which is injected into the synchronous machine to drive it in frequency.
- the first bus 106 successively comprises a rectifier 108, a filter 109 of LC type, that is to say having an inductance and a capacitance, and a three-phase inverter 111.
- the three-phase inverter comprises three arms 112, 113, 114 each provided with two controlled switches denoted respectively 112a, 112b, 113a, 113b, 114a, 114b.
- the second bus 107 also comprises successively a rectifier 128, a filter 129 of the LC type, and a three-phase inverter 131.
- the three-phase inverter also has three arms 132, 133, 134 each provided with two controlled switches, denoted respectively 132a, 132b, 133a, 133b, 134a, 134b.
- Each winding of the machine is connected to an arm of each inverter, one of its ends being directly connected to the two switches of an arm of the first inverter 111, and the other end being directly connected to the two switches of an arm the second inverter 131.
- the coil 102 thus has a first end connected to the two switches 112a and 112b of the arm 112 of the first inverter 111, and a second end connected to the two switches 132a and 132b of the arm 132 of the second inverter 131.
- the coil 103 is connected to the arms 113 and 133
- the coil 104 is connected to the arms 114 and 134.
- the actuator also comprises a first contactor 136 by which the first rectifier 108 is connected to the single three-phase electrical network 146, and a second contactor 137 by which the second rectifier 128 is connected to the three-phase network 146, by means of a connecting member 143.
- the term "contactor” denotes a controlled switch with breaking capacity. It can be a mechanical switch type contactor or circuit breaker, or a bidirectional type electronic switch current and voltage.
- This assembly which constitutes a non-isolated series redundant actuator architecture is controlled by a control unit identified by 138, connected to the contactors and to each controlled switch of the first and second inverters.
- the windings of the synchronous machine can be powered either jointly by the two buses 106 and 107, or by only one of these two buses.
- the machine is powered by its two buses, the switches 136 and 137 are both closed, and the switches of the two inverters 111 and 131 are controlled to apply to the coils 102, 103 and 104 a frequency voltage and variable amplitude and controlled.
- the machine is powered by a voltage that can be doubled since the voltage applied to it is the difference of the voltages applied by the two inverters.
- This voltage becomes double if the arm controls of the two inverters are complementary and if the DC bus voltages have the same values.
- this makes it possible to run it up to twice as fast, ie to optimize its operation.
- the machine is powered by only one of its buses, the electrical losses are reduced because only one bus is operated dynamically.
- One of the contactors 136 or 137 is then kept open and the corresponding inverter 111 or 131 is controlled to keep its switches closed so as to configure the windings of the machine 101 star.
- the other contactor 137 or 136 is kept closed, and the switches of the inverter 131, 111 corresponding to this other contactor are dynamically controlled to apply to the coils 102, 103 and 104 a voltage of variable frequency and amplitude and controlled.
- the machine In the event of a bus failure, for example at a switch of the inverter which is dynamically controlled, the machine is reconfigured by the control to adopt another mode of operation allowing it to deliver a mechanical torque despite this failure.
- the machine can be powered by the two inverters, or by a single inverter.
- the desired torque can be generated while minimizing Joule losses.
- the waveforms are derived from the form of the vacuum electromotive forces, the rotor position and the desired constant torque, so as to control the intensity of the current injected into the valid phases. It should be noted that this reconfiguration also allows to counteract a phase fault at the synchronous machine, that is to say a failure due to the rupture of one of its windings leading to the cancellation of the current in a phase of the electric machine.
- the machine is configured in a star configuration, a number of situations that can be distinguished.
- the switch 132a of the second inverter 131 locks in an open state
- the switch 137 is driven in opening to disconnect the entire second bus 107 of the three-phase electrical network, and the switches 132b, 133b and 134b are piloted to be continuously closed.
- the switch 132a locks in a closed state
- the switch 137 is controlled in opening to disconnect the second bus 107, and the switches 133a, 134a are controlled to be continuously closed.
- the windings 102, 103 and 104 of the machine 101 are configured in a star.
- the first contactor 136 is for its part kept closed, to power the machine 101 via the first bus 106.
- the first inverter 111 is then controlled to apply to these windings voltages having a frequency and an amplitude conditioned by the servocontrol.
- the connections between the two buses are made only via the electric machine.
- the machine is then reconfigured in a star, having its central node at a floating potential since it is completely disconnected from the network.
- the sum of the currents flowing through the windings of the machine is then zero, which gives rise to a nominal operation of this machine making it possible in particular to control the intensity of the current injected into it.
- the detection of faults is ensured by measuring the direction of the current passing through one or the other of the phases of the synchronous machine and by measuring the potential at one of these phases.
- the actuator is equipped with additional means of reconfiguration, as in the variant constituted by the actuator 200 of FIG.
- This actuator 200 includes all the members of that of Figure 1, these bodies bearing numerical references corresponding to those of the actuator 100 but increased by one hundred.
- this actuator 200 includes a first triple controlled switch 271 which is connected to each arm 212, 213, 214 of the first inverter 211, and a second triple switch 272 which is connected to each arm 232, 233 and 234 of the second inverter 231.
- These components 271 and 272 are advantageously bidirectional type contactors or static normally closed.
- the switch 271 can occupy an open position, as in FIG. 2, in which the three arms of the first inverter are isolated from each other when this first inverter supplies the machine 201. It can also occupy a closed position , in which it connects to each other the three arms 212, 213 and 214, to configure the three windings 202, 203 and 204 star, without having to drive the controlled switches of the first inverter.
- This triple switch 271 is advantageously coupled to the contactor 236 for disconnecting the first bus 206, so that when the contactor 236 for connecting the first bus 206 is closed, the triple switch 271 is open, and vice versa.
- an opening of the contactor 236 causes the closing of the triple switch 271, which has the effect of electrically isolating the whole of the first bus, and to configure as a star the windings of the machine 201, by inhibiting (blocking) the transistors of the first inverter 211.
- the second triple switch 272 holds the arms 232, 233 and 234 isolated from each other when open, and connects them to each other when closed, in order to configure the star machine 201. It is advantageously coupled to the second contactor 237, according to a coupling similar to that of the first triple switch.
- This variant of FIG. 2 further improves the availability of the actuator because it makes it possible to configure the star machine with a central node, even when this reconfiguration can not be obtained by driving the faulty inverter, such a situation can example when two switches of the same arm of the inverter are blocked in the open position.
- the actuator which is represented in FIG. 3 under reference 300, is powered by two separate three-phase electrical networks.
- This actuator 300 comprises all the members of the actuator 100 of FIG. 1, these members bearing numerical references corresponding to those of the actuator 100 plus a value of two hundred.
- the actuator 300 comprises at its input two connecting members, identified by 343 and 344 and located respectively at its first bus 306 and its second bus 307, to which are connected respectively a first and a second three-phase power supply network, identified by 346 and 347.
- the first contactor 336 connects the rectifier 308 of the first bus 306 to the first connection member 343, the second contactor 337 connecting the rectifier 328 of the second bus 307 to the second connection member 344.
- the first bus 306 is thus powered by the first electrical network.
- three-phase 346, and the second bus 307 is powered by the second three-phase electrical network 347.
- the operation is similar to that of the actuator 100 of FIG. 1: in the event of a fault detected on one of the buses, this bus can be disconnected and controlled to configure the star machine, with a node with zero potential, this machine is then powered by the other inverter, not defective.
- FIG. 4 shows an actuator 400 which is a variant of the actuator of FIG. 3. It comprises all the members of the actuator 300 of FIG. 3, these members bearing numerical references corresponding to those of FIG. 300 actuator, increased by one hundred.
- This actuator 400 of FIG. 4 is a variant of the same type as that of the actuator 200 of FIG. 2. It also comprises a first and a second triple switch, 471 and 472, respectively connected to the first and the second bus 406. and 407, and respectively coupled to the contactors 436 and 437 associated with these buses.
- these triple switches make it possible to reconfigure the phases of the star machine 401 without having to drive either the first or the second inverter.
- the actuator is powered by a first and a second three-phase electrical network, while including means for supplying each of its two buses either with one or the other. of these networks.
- This actuator 500 which is represented in FIG. 5 has a general structure of the same type as that of the actuator 300 of FIG. 3. It comprises all the members of the actuator 300 of FIG. 3, these members carrying corresponding numerical references. to those of the actuator 300, but increased by two hundred.
- This other actuator comprises two input connection members 543, 544, which are connected to the two three-phase networks 546 and 547.
- the two contactors 536 and 537 respectively connected to the first and second rectifiers, are connected to the two connection members 543, 544 via an additional two-position switch, marked by 539, and which is controlled by the control unit 538.
- This switch 539 is advantageously a contactor type 3PDTCO.
- This switch can occupy either a first position, as in FIG. 5, in which it electrically connects the first connection member 543 to the first contactor 536, or a second position in which it electrically connects the second connection member 544 to the second contactor 537. .
- the switch 539 can occupy the first position: the first contactor 536 is then closed, and the second contactor 537 is open, the switches of the second inverter being controlled to configure the windings of the star machine.
- the machine 501 is then configured as a star by being powered from the first three-phase electrical network 546, via the first bus 506.
- the first contactor 536 is opened and the first inverter is controlled to close its switches, then the second contactor 537 is closed.
- the machine is thus again configured as a star powered from the first three-phase network 546, but via its second bus 507.
- the switch 539 is switched to its second position, which allows to feed the machine from the second three-phase network 547 via the second bus 507.
- Both 536 and 537 contactors can be closed to power the machine via both inverters.
- the switch 539 then makes it possible to connect the actuator to either the network 546 or to the network 547.
- the switch 539 makes it possible to connect the actuator to the other network.
- contactor 536 or 537 associated with the faulty inverter is opened and the faulty inverter is controlled to configure the coils of the electric star machine. In this case, the machine is powered by one of the two networks selected by positioning the switch 539, and via the non-faulty inverter by closing the contactor 536, 537 associated therewith.
- the actuator is provided with additional triple switches to ensure a star setting without having to intervene on either the first or the second inverter.
- This variant corresponds to the actuator 600 of FIG. 6.
- This actuator 600 comprises all the members of the actuator 500 of FIG. 5, these members carrying numerical references corresponding to those of the actuator 500, increased by the value 100 .
- This actuator 600 of FIG. 6 is a variant of the same type as the variants 200 and 400 of FIGS. 2 and 4. It also comprises a first and a second triple switch 671 and 672 respectively connected to the first and the second bus 606. and 607, and respectively coupled to the contactors 636 and 637 of these buses.
- the actuator is powered by a first and a second electrical network.
- This actuator 700 has a general structure of the same type as the actuator 300 of FIG. 3.
- This actuator 700 comprises all the members of the actuator 300 of FIG. 3, these members carrying numerical references corresponding to those of the actuator. 300, increased by four hundred.
- the first and second contactors, designated by 736 and 737 are here three-position switches, instead of being simple controlled switches as in the actuator 300.
- These components 736 and 737 are advantageously 3PDTCO type contactors. .
- This switch can occupy a first position, as in FIG. 7, where it connects the first contactor 736 to the first connection member 743. It can occupy a second position in which it connects the contactor 736 to the second connection member 744, as well as a third position in which it completely isolates the first contactor 736 from the electrical network.
- This switch is thus able to supply the first bus 706 from the first three-phase electrical network 746 when it is in the first position of FIG. 7. When it is in the second position, it supplies this first bus 706 from the second network.
- the second switch which has the same general structure is also able to supply the second bus, from the first or second network, or disconnect from these networks.
- This actuator 700 has the same advantages as the actuator 500 since it can be driven to power each bus 706, 707, or from the first 746 electrical network, or from the second electrical network 747.
- the actuator is provided with two triple switches, similarly to the actuators 200, 400 and 600 of FIGS. 2, 4 and 6.
- the first and second triple switches, 871 and 872, also make it possible to reconfigure the star machine without having to act on either the first or the second inverter.
- the triple switches are not coupled to the bus contactors because these contactors are three-position switches. But the triple switch and the contactor associated with each bus are controlled jointly by the control unit 838.
- one of the buses of the actuator comprises a battery associated with a switch, in order to be able to be recharged by the three-phase power supply network, or to power the machine, depending on the position occupied by this switch.
- This actuator 900 comprises the same members as the actuator 100 of FIG. 1, these members bearing the same numerical references as for the actuator 100, but increased by the value eight hundred. However, it is a battery 951 and a switch 952 which are interposed between the rectifier 928 and the inverter 931 of the second bus 907, instead of an LC filter as in the actuator 100.
- the battery of this actuator 900 is integrated in its second bus 907, where it replaces the LC filter being interposed between the rectifier 928 and the inverter 931.
- This battery 951 has its first terminal connected to the rectifier 928 and the inverter 931 , and its second terminal connected to a two-position switch 952.
- This switch 952 can occupy a first position in which it connects the second terminal of the battery to the rectifier for charging. It can occupy a second position in which it connects the second terminal of the battery to the second inverter 931, to supply the machine 901 from the battery and via this inverter 931.
- the two switches 936 and 937 can be closed, and the switch 952 placed in the first position.
- the battery 951 is then recharged by the three-phase network, the second inverter 931 being isolated from the network because the switch 952 is in the first position.
- These components 936 and 937 are advantageously 3PDTCO type contactors.
- the second inverter 931 is controlled to close its switches so as to configure the phases of the star machine 901, this machine being supplied by the network via the first inverter 911.
- the first contactor 936 is controlled in opening, and the first inverter 911 is controlled to configure the phases of the star machine 901.
- the switch 952 is then controlled by the control unit 938 to move into its second position while the second inverter 931 is driven to power the electric machine 901.
- the machine is powered from the battery 951, via the second inverter 931, while its phases are star-shaped, with a floating potential central node, because of the opening of the first contactor 936 and the closing of the switches of the first inverter 911.
- the battery can also be operated in regeneration mode: when the machine operates in generator mode instead of engine, the battery can be loaded by the machine instead of by the network.
- the battery can also be used to limit the maximum power absorbed by the actuator: when the actuator absorbs its maximum power only occasionally, the battery can be charged when this actuator absorbs only a low electrical power, and it can be used when the actuator needs maximum electrical power.
- the actuator is also equipped with a battery, but its buses are connected to the supply network not via two contactors, but via a single two-position switch. .
- This actuator 1000 comprises the same members as the actuator 900 of Figure 9, which are identified by numerals corresponding to those of the actuator 900, increased by the value one hundred. However, it is here a two-position switch 1056 which is interposed between its connection member and the buses, instead of the two controlled switches included in the actuator 900.
- the two buses are connected to the single connection member 1043 not by two independent contactors, but by a two-position switch marked 1056.
- This component 1056 is advantageously a contactor 3PDTCO type.
- This switch comprises a first terminal connected to the first rectifier 1008 of the first bus 1006, a second terminal connected to the second rectifier 1028 of the second bus 1007, and a third terminal connected to the supply terminal 1043 of the three-phase network 1046.
- This switch can occupy a first position in which it connects the first rectifier 1008 to the connection member 1043 to supply the electrical machine 1001 from the three-phase network 1046 and via the first bus 1006, for example in normal operation. It can also occupy a second position in which it connects the second rectifier 1028 to the connection member 1043. If the switch 1052 of the battery 1051 is in its first position, the latter is charged by the electrical network 1046, via the rectifier 1028. This configuration allows in particular to ensure the charging of the battery 1051 when the actuator is not requested.
- the switch 1052 is advantageously a contactor type 3PDTCO.
- the switch 1056 is controlled by the unit 1038 to move to the second position, and the switches of the first inverter 1011 are controlled in closing, which has the effect of configuring the phases of the star machine 1001, with a floating potential central node.
- the switch 1052 can then be placed in its second position by the control 1038, which also drives the second inverter to feed the electrical machine 1001, which is thus fed from the battery.
- the battery can also be operated in regeneration mode, similarly to the fifth embodiment. It also makes it possible to limit the maximum power demanded by the actuator to the supply networks.
- FIG. 11 shows a variant of the actuator 1000 of FIG. 10.
- This actuator 1100 is a variant of the same type as those of FIGS. 4, 6, 8 and 10.
- the actuator is also provided with a first and second triple switches, 1171 and 1172 respectively connected to its first and second buses 1106 and 1107.
- these triple switches make it possible to reconfigure the phases of the star machine 1101, without having to drive either the first or the second inverter. But these triple switches are here independent, ie controlled directly by the control unit 1138.
- the battery can also be operated in regeneration mode, similarly to the fifth and sixth embodiments. It also makes it possible to limit the maximum power demanded by the actuator to the supply networks. It will be noted that in the fifth and sixth embodiments as well as in this latter variant, the battery can also be charged through the machine and the inverter associated with this battery, both with the machine stopped and rotation, which makes it possible to do without a rectifier.
- the actuator is equipped with an electric battery, but it may be a supercapacitor or the like. More generally, any electrical storage device can be used in this context.
- the invention which has been presented in the context of actuators provided with synchronous electrical machines is equally applicable to actuators provided with asynchronous electrical machines.
- the invention applies to actuators with polyphase electrical machines that can be powered by two converters making it possible to produce a series-type power supply architecture with two connection paths to the same electrical source or to two electrical sources. distinct.
- the power supply network or networks may be of the three-phase alternating type, as in the case of the examples which have been described, but these networks may also be of the single-phase alternating type or other type, rectifiers that can be simple diode rectifiers or controlled rectifiers, as in the examples that have been described.
- the power supply networks can also be DC networks, in which case the buses do not have to be equipped with rectifiers.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0919080-5A BRPI0919080B1 (pt) | 2008-09-24 | 2009-09-23 | Acionador elétrico |
EP09748362A EP2327133A2 (fr) | 2008-09-24 | 2009-09-23 | Actionneur electrique qui integre deux onduleurs de tension controles en courant alimentant une machine electrique et qui est reconfigurable en presence d'un defaut |
CN200980138098.4A CN102165666B (zh) | 2008-09-24 | 2009-09-23 | 为电机供电并在存在故障时可重新配置的包含两个电流控制的电压逆变器的电执行机构 |
US13/119,625 US8604733B2 (en) | 2008-09-24 | 2009-09-23 | Electric actuator including two current-controlled voltage inverters powering an electrical machine, and reconfigurable in the presence of a defect |
CA2738051A CA2738051C (fr) | 2008-09-24 | 2009-09-23 | Actionneur electrique qui integre deux onduleurs de tension controles en courant alimentant une machine electrique et qui est reconfigurable en presence d'un defaut |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0805240 | 2008-09-24 | ||
FR0805240A FR2936380B1 (fr) | 2008-09-24 | 2008-09-24 | Actionneur electrique qui integre deux onduleurs de tension controles en courant alimentant une machine electrique et qui est reconfigurable en presence d'un defaut |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010034906A2 true WO2010034906A2 (fr) | 2010-04-01 |
WO2010034906A3 WO2010034906A3 (fr) | 2010-05-20 |
Family
ID=40568651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/001126 WO2010034906A2 (fr) | 2008-09-24 | 2009-09-23 | Actionneur electrique qui integre deux onduleurs de tension controles en courant alimentant une machine electrique et qui est reconfigurable en presence d'un defaut |
Country Status (7)
Country | Link |
---|---|
US (1) | US8604733B2 (fr) |
EP (1) | EP2327133A2 (fr) |
CN (1) | CN102165666B (fr) |
BR (1) | BRPI0919080B1 (fr) |
CA (1) | CA2738051C (fr) |
FR (1) | FR2936380B1 (fr) |
WO (1) | WO2010034906A2 (fr) |
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WO2012059368A3 (fr) * | 2010-11-05 | 2012-12-20 | Lti Drives Gmbh | Circuit d'entraînement d'un moteur à pas à pas apte à fonctionner en régime de secours |
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TWI693769B (zh) * | 2018-11-28 | 2020-05-11 | 緯創資通股份有限公司 | 供電系統、電子裝置及其供電方法 |
KR20220020972A (ko) * | 2019-07-18 | 2022-02-21 | 각코호진 호세이다이가쿠 | 회전기 시스템 |
JP7280796B2 (ja) * | 2019-10-04 | 2023-05-24 | 日立Astemo株式会社 | モータ駆動装置 |
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Also Published As
Publication number | Publication date |
---|---|
BRPI0919080B1 (pt) | 2019-07-30 |
CA2738051A1 (fr) | 2010-04-01 |
FR2936380B1 (fr) | 2010-10-29 |
EP2327133A2 (fr) | 2011-06-01 |
FR2936380A1 (fr) | 2010-03-26 |
CN102165666B (zh) | 2014-12-31 |
BRPI0919080A2 (pt) | 2015-12-15 |
US8604733B2 (en) | 2013-12-10 |
CN102165666A (zh) | 2011-08-24 |
US20110181219A1 (en) | 2011-07-28 |
WO2010034906A3 (fr) | 2010-05-20 |
CA2738051C (fr) | 2015-12-29 |
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