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
  • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
  • H02P29/60—Controlling or determining the temperature of the motor or of the drive
  • H02P29/64—Controlling or determining the temperature of the winding
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
  • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
  • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
  • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L50/00—Electric propulsion with power supplied within the vehicle
  • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
  • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R31/34—Testing dynamo-electric machines
• • 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
  • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
  • B60Y2200/00—Type of vehicle
  • B60Y2200/90—Vehicles comprising electric prime movers
  • B60Y2200/91—Electric vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
  • B60Y2200/00—Type of vehicle
  • B60Y2200/90—Vehicles comprising electric prime movers
  • B60Y2200/92—Hybrid vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
  • B60Y2400/00—Special features of vehicle units
  • B60Y2400/30—Sensors
  • B60Y2400/301—Sensors for position or displacement
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
  • B60Y2400/00—Special features of vehicle units
  • B60Y2400/30—Sensors
  • B60Y2400/308—Electric sensors
  • B60Y2400/3084—Electric currents sensors
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
  • B60Y2400/00—Special features of vehicle units
  • B60Y2400/60—Electric Machines, e.g. motors or generators
  • B60Y2400/604—AC Machines, e.g. asynchronous motors
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/62—Hybrid vehicles
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
  • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
  • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
  • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
  • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]

Definitions

• the present invention relates to the field of rotary electrical machines, and in particular the measurement of the temperature of the active part of such machines.
• the temperature probes such as for example negative temperature sensors, called "CTN" are arranged on the external surfaces of the coil heads or between two pins.
• a plastic sleeve generally covers said temperature probes.
• the measured temperature values deviate from the actual temperature values at the center of the winding, in particular on dynamic driving profiles. This disparity is reinforced by the presence of contact resistances between the winding wires and the temperature probe distant from the winding core. In fact, said resistors decrease the level of thermal heat given off by the winding and seen by the temperature probe, which generates an incorrect measurement of the winding temperature.
• the center of the winding constitutes the hottest point, so it is essential to monitor it continuously on motor vehicles with electric or hybrid propulsion.
• the present invention relates to a method for correcting the temperature measurement of the winding of an electric machine, in particular of a motor vehicle with electric or hybrid propulsion, in which a measured temperature value of the temperature is recovered at all times. winding measured by a temperature probe located on the surface of the winding, a measured value of the speed of rotation of said electric machine measured by a position sensor and a measured value of the effective current passing through an inverter controlling the electric machine and measured by a sensor current.
• the measured value of the winding temperature is corrected as a function of the measured value of the winding temperature, of the measured value of the speed of rotation of said electric machine, of the measured value of the effective current and of experimental data carried out beforehand on a machine. electric on test bench.
• thermocouples are installed at the heart of the prototype winding, which is not possible in an electric machine installed in a motor vehicle.
• a first temperature correction value is calculated as a function of the measured temperature and of a first corrective factor resulting from prior tests carried out on an electric machine on a test bench.
• the first corrective factor varying as a function of the measured winding temperature values.
• a second temperature correction value is calculated as a function of the measured temperature, an estimate of the losses by the Joule effect calculated as a function of the effective current and of the rotation speed of the electric machine and a second postman corrective from previous tests carried out on an electric machine on a test bench.
• the second corrective factor varies according to the estimated values of losses by Joule effect.
• an initial correction value is calculated by adding said first and second correction values and an intermediate corrected value is calculated by adding said initial correction value with the measured temperature value.
• the invention relates to a system for correcting the temperature of the winding of an electric machine, in particular of a motor vehicle with electric or hybrid propulsion, comprising a temperature probe situated on the surface of the winding, a sensor for position and a current sensor measuring the effective current passing through an inverter controlling the electric machine.
• the system includes a first module configured to calculate a first temperature correction value as a function of the temperature measured by the temperature probe as a function of a first corrective factor.
• the system further includes a second correction module configured to calculate a second temperature correction value as a function of the temperature measured by the temperature probe and of the Joule effect losses estimated in a module for estimating the Joule effect losses. depending on the effective current and the speed of rotation of the electric machine, said second correction module comprising a module for applying a second factor to the measured temperature value as a function of said estimate of losses by the Joule effect.
• the first and second corrective factors come from preliminary tests carried out on an electric machine on a test bench.
• the first corrective factor varies depending on the measured winding temperature values.
• the second corrective factor varies according to the estimated values of losses by Joule effect.
• the temperature correction system makes it possible to effectively readjust the temperature measured at the surface of the winding to the actual temperature at the heart of the winding.
• the system includes a first adder configured to add the first and second correction values to each other and delivering an initial correction value and a second adder configured to add the initial corrected value to the measured temperature value and delivering a corrected value intermediate.
• the system may include a module for applying a coefficient to the intermediate corrected value and a filtering module comprising a discrete state integrator and delivering a final corrected value.
• the final corrected value is then looped back and subtracted in the second summator.
• the invention relates to a motor vehicle with electric or hybrid propulsion comprising at least one electric machine, an inverter, an electric power controller intended to control the inverter of the electric machine, a performance management system of the electric machine, and a winding temperature correction system as described above intended to be integrated into the electric power controller and configured to deliver to the electric machine performance management system a corrected value of the winding temperature.
• FIG. 1 illustrates, schematically, a motor vehicle with electric or hybrid propulsion comprising a winding temperature correction system according to the invention
• FIG. 3 shows an embodiment of a winding temperature correction method according to the invention.
• the motor vehicle 10 with electric or hybrid propulsion comprises at least one electric machine 12, an inverter 14 and an electric power controller 16 intended to control the inverter 14 of the electric machine 12.
• a position sensor 12a is mounted in the electric machine 12 and makes it possible to measure a value of the speed of rotation w of said electric machine.
• a temperature sensor 12b is placed on the coil heads of the winding (not shown) of the electric machine and measures the temperature Tmes of the winding.
• a current sensor l 4a is mounted in the inverter and makes it possible to measure the effective current Ieff passing through the inverter 14.
• the motor vehicle 10 with electric or hybrid propulsion further comprises a system 20 for correcting the winding temperature intended to be integrated into the electric power controller 16 and delivering to a system 1 8 for managing the performance of the electric machine 12, a corrected value Tcorr of the winding temperature.
• the winding temperature correction system 20 illustrated in detail in FIG. 2, comprises a first module 21 for correcting the temperature measured Tmes by the temperature probe l 2b as a function of a first corrective factor F l originating from preliminary tests carried out on an electric machine on a test bench.
• the first corrective factor F l varies according to the measured values Tmes of winding temperature.
• the first correction module 21 delivers a first correction value T l of the temperature.
• the winding temperature correction system 20 further comprises a second module 22 for correcting the temperature measured Tmes by the temperature probe 12b as a function of the Joule effect losses P evaluated in a module 23 for estimating the effect losses Joule P as a function of the effective current Ieff and of the speed of rotation w of the electric machine 12.
• the dependence of these losses on the temperature, by the change of the electrical resistance R as a function of the temperature, is also taken into account. account by the following equation:
• the second correction module 22 also includes a module 24 for applying a second factor F2 to the measured value Tmes of temperature as a function of said estimate of losses by the Joule P effect.
• the second corrective factor F2 is also the result of preliminary tests carried out on an electric machine on a test bench.
• the second corrective factor F2 varies as a function of the estimated values of losses by the Joule P effect.
• the second correction module 22 delivers a second temperature correction value T2.
• the winding temperature correction system 20 further comprises a first adder 25 configured to add the correction values T l, T2 to each other and delivering an initial correction value T3 and a second adder 26 configured to add the initial correction value T3 with the measured value Tmes of temperature and delivering an intermediate corrected value T4.
• the winding temperature correction system 20 also comprises a module 27 for applying a coefficient Kp to the input of a filtering module 28 comprising a state integrator discrete and delivering a final corrected value Tcorr.
• the final corrected value Tcorr is then looped back and subtracted in the second summator 26.
• the coefficient Kp is the gain of the filter applied in the module 28.
• the temperature correction system makes it possible to effectively readjust the temperature measured at the surface of the winding to the actual temperature at the heart of the winding.
• the flow diagram represented in FIG. 3 illustrates an example of a method 30 implemented by the system represented in FIG. 2.
• the measured temperature value Tmes of the winding is recovered, measured by the temperature probe l 2b, the value of the speed of rotation w of said electric machine 12 measured by the position sensor l 2a and the measurement of the effective current Ieff flowing through the inverter 14 measured by the current sensor l 4a.
• a first correction value T l of the temperature is calculated as a function of the temperature measured Tmes by the temperature probe l 2b and of a first corrective factor F l originating from prior tests carried out on a machine electric on a test bench.
• the first corrective factor F l varies as a function of the measured values Tmes of winding temperature.
• the first corrective factor F1 is of the order of a few degrees on the temperature variation margin, between -30 ° C and l 60 ° C.
• a second correction value T2 of the temperature is calculated as a function of the temperature measured Tmes by the temperature probe 12b, of an estimate of the losses by Joule effect P calculated as a function of the effective current Ieff and of the speed of rotation w of the electric machine 12 and of a second corrective factor F2 resulting from preliminary tests carried out on an electric machine on a test bench.
• the second corrective factor F2 can be of the order of a few degrees for small losses and tens of degrees for larger losses.
• the second corrective factor F2 varies as a function of the estimated values of losses by the Joule P effect.
• an initial correction value T3 is calculated by adding said correction values T l, T2 and in step 35, an intermediate corrected value T4 is calculated by adding said initial correction value T3 with the measured value Tmes of temperature.
• Steps 36 and 37 implement a regulation loop on this intermediate corrected value T4.
• a coefficient Kp is applied to the error on said intermediate corrected value T4 and in step 37, a final corrected value Tcorr is calculated by filtering by a discrete state integrator the previous value which is the error multiplied by the gain Kp.
• the transfer function in z of this discrete integrator is of the form:
• T is the sampling period.
• the final corrected value Tcorr is then looped back and subtracted in step 35, from the intermediate corrected value T4.
• thermocouples are installed at the heart of the prototype winding, which is not possible in an electric machine installed in a motor vehicle.
• the temperature measurement of a winding of an electric machine is improved, approaching the actual temperature value at the heart of the winding, while guaranteeing the performance of the electric machine and the protection of the machine. electric against overheating.

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Mechanical Engineering (AREA)
• Transportation (AREA)
• Sustainable Energy (AREA)
• Sustainable Development (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Physics & Mathematics (AREA)
• Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Control Of Electric Motors In General (AREA)
• Control Of Ac Motors In General (AREA)

Applications Claiming Priority (2)

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• 2018
  • 2018-07-18 FR FR1856643A patent/FR3084219B1/fr active Active
• 2019
  • 2019-06-24 EP EP19731761.3A patent/EP3824544A1/de active Pending
  • 2019-06-24 WO PCT/EP2019/066682 patent/WO2020015955A1/fr active Application Filing
  • 2019-06-24 KR KR1020217001599A patent/KR20210035177A/ko not_active Application Discontinuation
  • 2019-06-24 CN CN201980045761.XA patent/CN112470397A/zh active Pending

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