CA2787418A1 - System and method for managing a multiphase motor in an electric automotive vehicle - Google Patents
System and method for managing a multiphase motor in an electric automotive vehicle Download PDFInfo
- Publication number
- CA2787418A1 CA2787418A1 CA2787418A CA2787418A CA2787418A1 CA 2787418 A1 CA2787418 A1 CA 2787418A1 CA 2787418 A CA2787418 A CA 2787418A CA 2787418 A CA2787418 A CA 2787418A CA 2787418 A1 CA2787418 A1 CA 2787418A1
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- Canada
- Prior art keywords
- multiphase
- automotive vehicle
- electric
- charging
- battery
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000004891 communication Methods 0.000 claims abstract description 7
- 210000000352 storage cell Anatomy 0.000 claims description 10
- 210000004027 cell Anatomy 0.000 claims description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
- B60L53/24—Using the vehicle's propulsion converter for charging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
-
- 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
-
- 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
- Y02T10/64—Electric machine technologies in electromobility
-
- 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
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
An energy managing unit is disclosed for providing energy to a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and an external power transformer unit, the external power transformer unit connected to a multiphase network, the energy managing unit comprising a battery housed in the electric automotive vehicle for storing and delivering a direct current; an electric automotive vehicle charging connector connectable to the charging station connector when in a charging mode; an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode; a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in the charging mode.
Description
SYSTEM AND METHOD FOR MANAGING A MULTIPHASE MOTOR IN AN
ELECTRIC AUTOMOTIVE VEHICLE
FIELD OF THE INVENTION
The invention is related generally to an electric drive system. More particularly, this invention pertains to a system and method for managing a multiphase motor in an electric automotive vehicle.
BACKGROUND
Three-phase AC motors have become popular as they are more efficient, cost less to build and operate, last longer, and are more dependable than DC motors.
Electric drive systems with AC motors include a battery source, a converter that converts direct current (DC) from the battery source into alternating current (AC) and a three-phase motor that it is subjected to deliver torque when alternating current is supplied to the stator.
Utilization of an electric motor as the power source within an automotive vehicle such as a truck or car requires implementation of a separate system for charging the battery source.
A first type of secondary system for charging the battery source of an electric automotive vehicle engine may consist of an additionally on-board battery charger supplied with alternating current from the network.
It will be appreciated by the skilled addressee that the reliance on a separate secondary system for charging the battery source of an electric automotive vehicle engine adds bulk and weight to the automotive vehicle which is a drawback since it reduces the vehicle's efficiency.
Another drawback associated with having a separate secondary system for charging the battery source of an electric automotive vehicle engine is the fact that such additional separate on-board system is costly.
An alternative second type of secondary system for charging the battery source of an electric automotive vehicle engine consists of specially designed power electronic charging stations placed along the route that the electric vehicle will follow so as to provide direct current to the batteries when docked or plugged-in to the charging station or by removing the batteries from the vehicle for recharge.
However, such charging stations will reduce a number of routes available to the electric vehicles and further require substantial expenses. The skilled addressee will appreciate that this is a great drawback.
There is a need for a method and system that will overcome at least one of the above-identified drawbacks.
Features of the invention will be apparent from review of the disclosure, drawings and description of the invention below.
BRIEF SUMMARY
In accordance with one aspect of the invention, there is provided a system for managing a multiphase motor of an electric automotive vehicle, the system comprising a battery housed in the electric automotive vehicle for storing and delivering a direct current; an electric automotive vehicle charging connector; an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode; a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for
ELECTRIC AUTOMOTIVE VEHICLE
FIELD OF THE INVENTION
The invention is related generally to an electric drive system. More particularly, this invention pertains to a system and method for managing a multiphase motor in an electric automotive vehicle.
BACKGROUND
Three-phase AC motors have become popular as they are more efficient, cost less to build and operate, last longer, and are more dependable than DC motors.
Electric drive systems with AC motors include a battery source, a converter that converts direct current (DC) from the battery source into alternating current (AC) and a three-phase motor that it is subjected to deliver torque when alternating current is supplied to the stator.
Utilization of an electric motor as the power source within an automotive vehicle such as a truck or car requires implementation of a separate system for charging the battery source.
A first type of secondary system for charging the battery source of an electric automotive vehicle engine may consist of an additionally on-board battery charger supplied with alternating current from the network.
It will be appreciated by the skilled addressee that the reliance on a separate secondary system for charging the battery source of an electric automotive vehicle engine adds bulk and weight to the automotive vehicle which is a drawback since it reduces the vehicle's efficiency.
Another drawback associated with having a separate secondary system for charging the battery source of an electric automotive vehicle engine is the fact that such additional separate on-board system is costly.
An alternative second type of secondary system for charging the battery source of an electric automotive vehicle engine consists of specially designed power electronic charging stations placed along the route that the electric vehicle will follow so as to provide direct current to the batteries when docked or plugged-in to the charging station or by removing the batteries from the vehicle for recharge.
However, such charging stations will reduce a number of routes available to the electric vehicles and further require substantial expenses. The skilled addressee will appreciate that this is a great drawback.
There is a need for a method and system that will overcome at least one of the above-identified drawbacks.
Features of the invention will be apparent from review of the disclosure, drawings and description of the invention below.
BRIEF SUMMARY
In accordance with one aspect of the invention, there is provided a system for managing a multiphase motor of an electric automotive vehicle, the system comprising a battery housed in the electric automotive vehicle for storing and delivering a direct current; an electric automotive vehicle charging connector; an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode; a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for
- 2 -providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in a charging mode; a charging station connector connectable to the electric automotive vehicle charging connector when in the charging mode; and a stationary power transformer unit housed in a charging station, the stationary power transformer unit connected to a multiphase network and to the charging station connector for providing electrical energy to the charging station connector; wherein the multiphase electronic converter is used in both charging and driving modes.
In accordance with one embodiment, the stationary power transformer unit comprises a standard power transformer coupled with an inductance.
In accordance with another embodiment, the stationary power transformer unit comprises a power transformer having a high leakage reluctance.
In accordance with another aspect of the invention, there is provided an energy managing unit for providing energy to a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the energy managing unit comprising a battery housed in the electric automotive vehicle for storing and delivering a direct current; an electric automotive vehicle charging connector connectable to the charging station connector when in a charging mode;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode; a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for
In accordance with one embodiment, the stationary power transformer unit comprises a standard power transformer coupled with an inductance.
In accordance with another embodiment, the stationary power transformer unit comprises a power transformer having a high leakage reluctance.
In accordance with another aspect of the invention, there is provided an energy managing unit for providing energy to a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the energy managing unit comprising a battery housed in the electric automotive vehicle for storing and delivering a direct current; an electric automotive vehicle charging connector connectable to the charging station connector when in a charging mode;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode; a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for
- 3 -providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in the charging mode wherein the multiphase electronic converter is used in both charging and driving modes.
In accordance with an embodiment, the system further comprises a controller operatively connected to at least one of the multiphase electronic converter and the electric energy providing unit, the controller for operating the at least one of the multiphase electronic converter and the electric energy providing unit.
In accordance with another embodiment, the multiphase electronic converter comprises a three-phase converter.
In accordance with another embodiment, the multiphase motor comprises a three-phase motor.
In accordance with an embodiment, the battery comprises a plurality of storage cells.
In accordance with an embodiment, the plurality of storage cells provides at least 660V.
In accordance with an embodiment, the plurality of storage cells comprises LiFePO4 cells.
In accordance with another embodiment, each storage cell provides at least 100 Ah.
In accordance with another embodiment, the multiphase network provides alternating current selected from a group consisting from 3x560 VAC 60Hz, 3x460 VAC 60Hz, 3x400 VAC 50Hz, 3x220 VAC 50Hz, 3x200 VAC 60Hz, 3x110 VAC
50Hz and 3x110 VAC 60Hz.
In accordance with an embodiment, the system further comprises a controller operatively connected to at least one of the multiphase electronic converter and the electric energy providing unit, the controller for operating the at least one of the multiphase electronic converter and the electric energy providing unit.
In accordance with another embodiment, the multiphase electronic converter comprises a three-phase converter.
In accordance with another embodiment, the multiphase motor comprises a three-phase motor.
In accordance with an embodiment, the battery comprises a plurality of storage cells.
In accordance with an embodiment, the plurality of storage cells provides at least 660V.
In accordance with an embodiment, the plurality of storage cells comprises LiFePO4 cells.
In accordance with another embodiment, each storage cell provides at least 100 Ah.
In accordance with another embodiment, the multiphase network provides alternating current selected from a group consisting from 3x560 VAC 60Hz, 3x460 VAC 60Hz, 3x400 VAC 50Hz, 3x220 VAC 50Hz, 3x200 VAC 60Hz, 3x110 VAC
50Hz and 3x110 VAC 60Hz.
- 4 -In accordance with an embodiment, the multiphase network provides alternating current in a voltage range selected from a group consisting of 6kV, 10kV and 20kV.
In accordance with an embodiment, the electric energy providing unit comprises a plurality of switches for selectively connecting the multiphase motor to the multiphase electronic converter.
In accordance with an aspect of the invention, there is provided a method for driving a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the method comprising providing a system as disclosed above and controlling the electric energy providing unit to selectively set the system in one of the charging mode and the driving mode, such that when in the driving mode, direct current ("DC") power from the battery is converted into multiphase AC power in the multiphase electronic converter and generates drive torque in the multiphase motor and when in the charging mode, AC power from the stationary power transformer unit is provided to the multiphase electronic converter where the AC power is converted into DC power and is delivered to the battery.
According to one embodiment, the controlling of the electric energy providing unit comprises receiving a control signal from a controller.
According to one embodiment, there is provided an electric automotive vehicle comprising an energy managing unit as disclosed above for providing energy to a multiphase motor used for moving the electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit.
An advantage of the system disclosed herein is that the system does not require a separate secondary on-board electronic system for charging the battery or a specially configured power electronic charging station that produces direct current.
In accordance with an embodiment, the electric energy providing unit comprises a plurality of switches for selectively connecting the multiphase motor to the multiphase electronic converter.
In accordance with an aspect of the invention, there is provided a method for driving a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the method comprising providing a system as disclosed above and controlling the electric energy providing unit to selectively set the system in one of the charging mode and the driving mode, such that when in the driving mode, direct current ("DC") power from the battery is converted into multiphase AC power in the multiphase electronic converter and generates drive torque in the multiphase motor and when in the charging mode, AC power from the stationary power transformer unit is provided to the multiphase electronic converter where the AC power is converted into DC power and is delivered to the battery.
According to one embodiment, the controlling of the electric energy providing unit comprises receiving a control signal from a controller.
According to one embodiment, there is provided an electric automotive vehicle comprising an energy managing unit as disclosed above for providing energy to a multiphase motor used for moving the electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit.
An advantage of the system disclosed herein is that the system does not require a separate secondary on-board electronic system for charging the battery or a specially configured power electronic charging station that produces direct current.
- 5 -Rather, the multiphase electronic converter of the system is also used to recharge the batteries accepting input from a stationary power transformer unit converting the AC current via the multiphase electronic converter into direct current.
In accordance with another aspect of the invention, there is provided an energy managing unit for providing energy to a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the energy managing unit comprising a battery housed in the electric automotive vehicle for storing and delivering a direct current; an electric automotive vehicle charging connector connectable to the charging station connector when in a charging mode;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode; a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in the charging mode, wherein the multiphase electronic converter is used in both charging and driving modes.
Conversely, using an electric energy providing unit and the multiphase electronic converter, the battery may be charged from the stationary power transformer unit. In a preferred embodiment, the battery source is charged when AC power flows from the stationary power transformer unit to the multiphase electronic converter where it is converted into DC power and finally stored in the battery. In this regard, electric
In accordance with another aspect of the invention, there is provided an energy managing unit for providing energy to a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the energy managing unit comprising a battery housed in the electric automotive vehicle for storing and delivering a direct current; an electric automotive vehicle charging connector connectable to the charging station connector when in a charging mode;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode; a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in the charging mode, wherein the multiphase electronic converter is used in both charging and driving modes.
Conversely, using an electric energy providing unit and the multiphase electronic converter, the battery may be charged from the stationary power transformer unit. In a preferred embodiment, the battery source is charged when AC power flows from the stationary power transformer unit to the multiphase electronic converter where it is converted into DC power and finally stored in the battery. In this regard, electric
- 6 -vehicles comprising the system disclosed herein are recharged by a simple connection to a stationary power transformer unit and do not require special electronic charging stations that convert AC power to DC power nor a secondary on-board electronic charging system. During the charging phase, a control device may be used to set the amount of power that flows into the battery.
BRIEF DESCRIPTION OF THE DRAWINGS
In order that the invention may be readily understood, embodiments of the invention are illustrated by way of example in the accompanying drawings.
Figure 1 shows an embodiment of a system for managing a multiphase motor in an electric automotive vehicle in a driving mode wherein an alternating current is provided to the multiphase motor.
Figure 2 shows an embodiment of a system for managing a multiphase motor in an electric automotive vehicle engine in a charging mode wherein a direct current is provided to the battery.
Further details of the invention and its advantages will be apparent from the detailed description included below.
DETAILED DESCRIPTION
In the following description of the embodiments, references to the accompanying drawings are by way of illustration of an example by which the invention may be practiced. It will be understood that other embodiments may be made without departing from the scope of the invention disclosed.
As disclosed further below, the system for managing a multiphase motor in an electric automotive vehicle disclosed herein does not require a separate on-board system for charging a battery or a specially configured charging station that produces direct current.
BRIEF DESCRIPTION OF THE DRAWINGS
In order that the invention may be readily understood, embodiments of the invention are illustrated by way of example in the accompanying drawings.
Figure 1 shows an embodiment of a system for managing a multiphase motor in an electric automotive vehicle in a driving mode wherein an alternating current is provided to the multiphase motor.
Figure 2 shows an embodiment of a system for managing a multiphase motor in an electric automotive vehicle engine in a charging mode wherein a direct current is provided to the battery.
Further details of the invention and its advantages will be apparent from the detailed description included below.
DETAILED DESCRIPTION
In the following description of the embodiments, references to the accompanying drawings are by way of illustration of an example by which the invention may be practiced. It will be understood that other embodiments may be made without departing from the scope of the invention disclosed.
As disclosed further below, the system for managing a multiphase motor in an electric automotive vehicle disclosed herein does not require a separate on-board system for charging a battery or a specially configured charging station that produces direct current.
- 7 -More precisely and now referring to Fig. 1, there is shown an embodiment of a system for managing a multiphase motor in an electric automotive vehicle.
The system for managing a multiphase motor in an electric automotive vehicle comprises an energy managing unit 100 for providing energy to a multiphase motor used in an electric automotive vehicle.
It will be appreciated that the electric automotive vehicle may be of various types.
More precisely, the electric automotive vehicle may be selected from a group consisting of electric cars, electric trucks, or the like.
The system for managing a multiphase motor in an electric automotive vehicle further comprises a charging station connector 104 and an external power transformer unit 102.
It will be appreciated that the charging station may be located at various places and may be used for recharging the battery of the electric automotive vehicle as explained further below.
Still referring to Fig. 1, the energy managing unit 100 for providing energy to a multiphase motor used in an electric automotive vehicle comprises a battery 106, an electric automotive vehicle charging connector 110, a multiphase electronic converter 108 and an electric energy providing unit 112.
The battery 106 is housed in the electric automotive vehicle. The battery 106 is used for storing and delivering electric energy to a multiphase motor used for moving the electric automotive vehicle.
In a preferred embodiment, the battery 106 comprises a battery of storage cells of .
150kWh - 1000kWh.
The system for managing a multiphase motor in an electric automotive vehicle comprises an energy managing unit 100 for providing energy to a multiphase motor used in an electric automotive vehicle.
It will be appreciated that the electric automotive vehicle may be of various types.
More precisely, the electric automotive vehicle may be selected from a group consisting of electric cars, electric trucks, or the like.
The system for managing a multiphase motor in an electric automotive vehicle further comprises a charging station connector 104 and an external power transformer unit 102.
It will be appreciated that the charging station may be located at various places and may be used for recharging the battery of the electric automotive vehicle as explained further below.
Still referring to Fig. 1, the energy managing unit 100 for providing energy to a multiphase motor used in an electric automotive vehicle comprises a battery 106, an electric automotive vehicle charging connector 110, a multiphase electronic converter 108 and an electric energy providing unit 112.
The battery 106 is housed in the electric automotive vehicle. The battery 106 is used for storing and delivering electric energy to a multiphase motor used for moving the electric automotive vehicle.
In a preferred embodiment, the battery 106 comprises a battery of storage cells of .
150kWh - 1000kWh.
- 8 -For instance, the battery 106 may be comprised of 238 LiFePO4 cells, each having a capacity of either 200 Ah, 300 Ah or higher manufactured by Winston Battery Limited, in China.
It will be appreciated by the skilled addressee that other types of batteries may be Still in a preferred embodiment, the series connection of the storage cells provides over 660 VDC and more precisely 880 VDC in a full charge state. However, the connection of cells may be sized to produce any necessary output such as for instance 100 VDC, 500 VDC or more than 1000 VDC.
when higher or lower power outputs are required.
It will be appreciated that the multiphase motor 114 may be of various types.
In a preferred embodiment, the multiphase motor 114 is a three-phase AC motor manufactured by Electroputere in Romania.
in other embodiments the multiphase motor 114 may be a synchronous motor with windings or permanent magnets inside.
The electric automotive charging connector 110 is used for operatively connecting the energy managing unit for providing energy to a multiphase motor in an electric It will be appreciated that the electric automotive charging connector 110 may be of various types.
In a preferred embodiment, the electric automotive charging connector 110 is manufactured by Amphenol Corporation.
It will be appreciated by the skilled addressee that other types of batteries may be Still in a preferred embodiment, the series connection of the storage cells provides over 660 VDC and more precisely 880 VDC in a full charge state. However, the connection of cells may be sized to produce any necessary output such as for instance 100 VDC, 500 VDC or more than 1000 VDC.
when higher or lower power outputs are required.
It will be appreciated that the multiphase motor 114 may be of various types.
In a preferred embodiment, the multiphase motor 114 is a three-phase AC motor manufactured by Electroputere in Romania.
in other embodiments the multiphase motor 114 may be a synchronous motor with windings or permanent magnets inside.
The electric automotive charging connector 110 is used for operatively connecting the energy managing unit for providing energy to a multiphase motor in an electric It will be appreciated that the electric automotive charging connector 110 may be of various types.
In a preferred embodiment, the electric automotive charging connector 110 is manufactured by Amphenol Corporation.
- 9 -The multiphase electronic converter 108 is housed in the electric automotive vehicle.
The multiphase electronic converter 108 is in electrical communication with the battery 106 with the electric automotive vehicle charging connector 110 and with the electric energy providing unit 112.
It will be appreciated that the multiphase electronic converter 108 is configured for receiving the direct current from the battery 106 and for providing a corresponding multiphase alternating current to the electric energy providing unit 112 when in a driving mode.
The multiphase electronic converter 108 is further advantageously used for receiving a multiphase alternating current from the electric automotive vehicle charging connector 110 and for providing a corresponding direct current to the battery when in a charging mode.
It will be appreciated that the multiphase electronic converter 108 may be of various types.
In a preferred embodiment, the multiphase electronic converter 108 is a three-phase converter manufactured by INDA SRL in Romania.
The skilled addressee will appreciate that various alternative embodiments may be used.
Still referring to Fig. 1, it will be appreciated that the charging station connector 104 2 0 is operatively connected to the electric automotive vehicle charging connector 110 when in the charging mode.
The external power transformer unit 102 is housed in the charging station.
In a preferred embodiment, the external power transformer unit 102 is a three-phase transformer having a high leakage reluctance. Alternatively, the external power
The multiphase electronic converter 108 is in electrical communication with the battery 106 with the electric automotive vehicle charging connector 110 and with the electric energy providing unit 112.
It will be appreciated that the multiphase electronic converter 108 is configured for receiving the direct current from the battery 106 and for providing a corresponding multiphase alternating current to the electric energy providing unit 112 when in a driving mode.
The multiphase electronic converter 108 is further advantageously used for receiving a multiphase alternating current from the electric automotive vehicle charging connector 110 and for providing a corresponding direct current to the battery when in a charging mode.
It will be appreciated that the multiphase electronic converter 108 may be of various types.
In a preferred embodiment, the multiphase electronic converter 108 is a three-phase converter manufactured by INDA SRL in Romania.
The skilled addressee will appreciate that various alternative embodiments may be used.
Still referring to Fig. 1, it will be appreciated that the charging station connector 104 2 0 is operatively connected to the electric automotive vehicle charging connector 110 when in the charging mode.
The external power transformer unit 102 is housed in the charging station.
In a preferred embodiment, the external power transformer unit 102 is a three-phase transformer having a high leakage reluctance. Alternatively, the external power
- 10 -transformer unit 102 is a standard power transformer with an inductance connected to it.
It will be appreciated that the external power transformer unit 102 may comprise specially designed windings. For example, in designing the windings for a transformer with increased number of pulses, it is advantageous to connect in both Y
connection and Delta connection, different winding sections per phase.
By doing this, one obtains a coil group that allows for additional supply system options. For example, one could use one, two, or more distinct converters which can act in the same way to charge the battery.
The external power transformer unit 102 is operatively connected to the charging station connector 104 and to an electrical network 120 (also referred to as a multiphase network).
In a preferred embodiment, the electrical network 120 is a three-phase voltage network. It will be appreciated that in this embodiment, the three-phase voltage network comprises three circuit conductors that carry three alternating currents of the same frequency which reach their instantaneous peak values at different times.
One embodiment of an already available three-phase voltage network that may be used for supplying the external power transformer unit 102 with battery-charging current is 3x560 VAC at 60 Hz.
It will be appreciated by the skilled addressee that alternatively any medium voltage network available or standard voltage network 3x460 VAC at 60Hz as well as the European standard voltage 3x400 VAC at 50 Hz or any other non-standard voltages may be used, such as 3x220 VAC or 3x110 VAC at either 50Hz or 60Hz.
It will be appreciated that alternatively the electrical network 120 provides an alternating current in the voltage range selected from a group consisting of 6kV, 10kV and 20kV.
It will be appreciated that the external power transformer unit 102 may comprise specially designed windings. For example, in designing the windings for a transformer with increased number of pulses, it is advantageous to connect in both Y
connection and Delta connection, different winding sections per phase.
By doing this, one obtains a coil group that allows for additional supply system options. For example, one could use one, two, or more distinct converters which can act in the same way to charge the battery.
The external power transformer unit 102 is operatively connected to the charging station connector 104 and to an electrical network 120 (also referred to as a multiphase network).
In a preferred embodiment, the electrical network 120 is a three-phase voltage network. It will be appreciated that in this embodiment, the three-phase voltage network comprises three circuit conductors that carry three alternating currents of the same frequency which reach their instantaneous peak values at different times.
One embodiment of an already available three-phase voltage network that may be used for supplying the external power transformer unit 102 with battery-charging current is 3x560 VAC at 60 Hz.
It will be appreciated by the skilled addressee that alternatively any medium voltage network available or standard voltage network 3x460 VAC at 60Hz as well as the European standard voltage 3x400 VAC at 50 Hz or any other non-standard voltages may be used, such as 3x220 VAC or 3x110 VAC at either 50Hz or 60Hz.
It will be appreciated that alternatively the electrical network 120 provides an alternating current in the voltage range selected from a group consisting of 6kV, 10kV and 20kV.
- 11 -The skilled addressee will readily appreciate that the multiphase electronic converter 108 is used in both the charging and the driving mode which is of great advantage.
It will be appreciated that the electric energy providing unit 112 is used for selectively providing an alternating current to the multiphase motor 114 when in a driving mode.
In a preferred embodiment, the electric energy providing unit 112 comprises a plurality of switches.
Still in a preferred embodiment, it will be appreciated that the plurality of switches may be placed in one of an open position and a closed position.
The skilled addressee will appreciate that Fig. 1 shows an embodiment in which the plurality of switches is placed in a closed position while Fig. 2 shows an embodiment in which the plurality of switches is placed in an open position.
It will be further appreciated that when the plurality of switches is placed in a closed position, the system disclosed herein is placed in a driving mode while when the plurality of switches is placed in an open position and the electric automotive vehicle charging connector 110 is operatively connected to the charging station connector 104, the system disclosed herein is placed in a charging mode.
Fig. 1 shows an embodiment of a driving mode in which DC power flows from the battery 106 into the multiphase electronic converter 108 where it is converted into a multiphase alternating current that is then supplied to the multiphase motor causing it to turn. In the embodiment shown in Fig. 1, the multiphase alternating current is a three-phase alternating current.
In fact, and in accordance with a preferred embodiment, it will be appreciated that a controller 116 is operatively connected to at least one of the multiphase electronic converter 108 and the electric energy providing unit 112. The controller is used for operating the at least one of the multiphase electronic converter 108 and the electric energy providing unit 112.
It will be appreciated that the electric energy providing unit 112 is used for selectively providing an alternating current to the multiphase motor 114 when in a driving mode.
In a preferred embodiment, the electric energy providing unit 112 comprises a plurality of switches.
Still in a preferred embodiment, it will be appreciated that the plurality of switches may be placed in one of an open position and a closed position.
The skilled addressee will appreciate that Fig. 1 shows an embodiment in which the plurality of switches is placed in a closed position while Fig. 2 shows an embodiment in which the plurality of switches is placed in an open position.
It will be further appreciated that when the plurality of switches is placed in a closed position, the system disclosed herein is placed in a driving mode while when the plurality of switches is placed in an open position and the electric automotive vehicle charging connector 110 is operatively connected to the charging station connector 104, the system disclosed herein is placed in a charging mode.
Fig. 1 shows an embodiment of a driving mode in which DC power flows from the battery 106 into the multiphase electronic converter 108 where it is converted into a multiphase alternating current that is then supplied to the multiphase motor causing it to turn. In the embodiment shown in Fig. 1, the multiphase alternating current is a three-phase alternating current.
In fact, and in accordance with a preferred embodiment, it will be appreciated that a controller 116 is operatively connected to at least one of the multiphase electronic converter 108 and the electric energy providing unit 112. The controller is used for operating the at least one of the multiphase electronic converter 108 and the electric energy providing unit 112.
- 12 -In the case of the multiphase electronic converter 108, the controller 116 may be used for instance for setting up an amount of power drawn from the battery 106 and for therefore controlling the rotation speed of the multiphase motor 114.
In a preferred embodiment the controller 116 is based on Texas instruments(TM) Digital Signal Processor family C2000.
It will be appreciated that in an alternative embodiment, the controller 116 may be of various other types e.g. based on Intel(TM) MCS 96/296, Freescale(TM) ARM(R) Cortex Kinetis 68HC16, Microchip(TM) PIC 18F8720, Microchip(TM) dSPIC
30F6010A, NXP(TM) LPC2000, etc.
When the plurality of switches is placed in the open position and when the electric automotive vehicle charging connector 110 is operatively connected to the charging station connector 104, as shown in Fig. 2, the system functions to charge the battery 106.
In a preferred exemplary embodiment, the battery 106 is charged when AC power flows from a three-phase voltage network 120 through the external power transformer unit 102 through the electric automotive vehicle charging connector 110, the charging station connector 104 to the multiphase electronic converter 108 where the AC power is converted into DC power.
Because of the internal diodes, the multiphase electronic converter 108 acts in a preferred embodiment as a three-phase rectifier during the charge cycle to convert the received AC power into DC power.
Additionally, the multiphase electronic converter 108 is controlled as a step up DC
chopper using the inductance of the external power transformer unit 102 to boost the DC current produced by the free wheel diodes of the multiphase electronic converter 108 before it is delivered to the battery 106.
In a preferred embodiment the controller 116 is based on Texas instruments(TM) Digital Signal Processor family C2000.
It will be appreciated that in an alternative embodiment, the controller 116 may be of various other types e.g. based on Intel(TM) MCS 96/296, Freescale(TM) ARM(R) Cortex Kinetis 68HC16, Microchip(TM) PIC 18F8720, Microchip(TM) dSPIC
30F6010A, NXP(TM) LPC2000, etc.
When the plurality of switches is placed in the open position and when the electric automotive vehicle charging connector 110 is operatively connected to the charging station connector 104, as shown in Fig. 2, the system functions to charge the battery 106.
In a preferred exemplary embodiment, the battery 106 is charged when AC power flows from a three-phase voltage network 120 through the external power transformer unit 102 through the electric automotive vehicle charging connector 110, the charging station connector 104 to the multiphase electronic converter 108 where the AC power is converted into DC power.
Because of the internal diodes, the multiphase electronic converter 108 acts in a preferred embodiment as a three-phase rectifier during the charge cycle to convert the received AC power into DC power.
Additionally, the multiphase electronic converter 108 is controlled as a step up DC
chopper using the inductance of the external power transformer unit 102 to boost the DC current produced by the free wheel diodes of the multiphase electronic converter 108 before it is delivered to the battery 106.
- 13 -The current is then directed to the battery 106 causing the battery 106 to be charged.
It will be appreciated that when the system is used for charging the battery 106, and in accordance with a preferred embodiment, the operation of the multiphase electronic converter 108 is regulated by the controller 116.
Having shown and described a preferred embodiments of the invention, those skilled in the art will realize that many variations and modifications may be made to affect the described invention and still be within the scope of the claimed invention. Thus, many of the elements indicated above may be altered or replaced by different elements which will provide the same result and fall within the spirit of the claimed invention. It is the intention, therefore, to limit the invention only as indicated by the scope of the claims.
It will be appreciated that when the system is used for charging the battery 106, and in accordance with a preferred embodiment, the operation of the multiphase electronic converter 108 is regulated by the controller 116.
Having shown and described a preferred embodiments of the invention, those skilled in the art will realize that many variations and modifications may be made to affect the described invention and still be within the scope of the claimed invention. Thus, many of the elements indicated above may be altered or replaced by different elements which will provide the same result and fall within the spirit of the claimed invention. It is the intention, therefore, to limit the invention only as indicated by the scope of the claims.
- 14 -
Claims (17)
1. A
system for managing a multiphase motor of an electric automotive vehicle, the system comprising:
a battery housed in the electric automotive vehicle for storing and delivering a direct current;
an electric automotive vehicle charging connector;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode;
a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in a charging mode;
a charging station connector connectable to the electric automotive vehicle charging connector when in the charging mode; and a stationary power transformer unit housed in a charging station, the stationary power transformer unit connected to a multiphase network and to the charging station connector for providing electrical energy to the charging station connector;
wherein the multiphase electronic converter is used in both charging and driving modes.
system for managing a multiphase motor of an electric automotive vehicle, the system comprising:
a battery housed in the electric automotive vehicle for storing and delivering a direct current;
an electric automotive vehicle charging connector;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode;
a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in a charging mode;
a charging station connector connectable to the electric automotive vehicle charging connector when in the charging mode; and a stationary power transformer unit housed in a charging station, the stationary power transformer unit connected to a multiphase network and to the charging station connector for providing electrical energy to the charging station connector;
wherein the multiphase electronic converter is used in both charging and driving modes.
2. The system as claimed in claim 1, wherein the stationary power transformer unit comprises a standard power transformer coupled with an inductance.
3. The system as claimed in claim 1, wherein the stationary power transformer unit comprises a power transformer having a high leakage reluctance.
4. An energy managing unit for providing energy to a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the energy managing unit comprising:
a battery housed in the electric automotive vehicle for storing and delivering a direct current;
an electric automotive vehicle charging connector connectable to the charging station connector when in a charging mode;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode;
a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in the charging mode;
wherein the multiphase electronic converter is used in both charging and driving modes.
a battery housed in the electric automotive vehicle for storing and delivering a direct current;
an electric automotive vehicle charging connector connectable to the charging station connector when in a charging mode;
an electric energy providing unit for selectively providing an alternating current to the multiphase motor when in a driving mode;
a multiphase electronic converter housed in the electric automotive vehicle, the multiphase electronic converter in electrical communication with the battery, with the electric automotive vehicle charging connector and with the electric energy providing unit, the multiphase electronic converter configured for receiving the direct current from the battery and for providing a corresponding multiphase alternating current to the electric energy providing unit when in the driving mode and further configured for receiving a multiphase alternating current from the electric automotive vehicle charging connector and for providing a corresponding direct current to the battery when in the charging mode;
wherein the multiphase electronic converter is used in both charging and driving modes.
5. The system as claimed in claim 1, further comprising a controller operatively connected to at least one of the multiphase electronic converter and the electric energy providing unit, the controller for operating the at least one of the multiphase electronic converter and the electric energy providing unit.
6. The system as claimed in any one of claims 1 to 5, wherein the multiphase electronic converter comprises a three-phase converter.
7. The system as claimed in any one of claims 1 to 6, wherein the multiphase motor comprises a three-phase motor.
8. The system as claimed in any one of claims 1 to 7, wherein the battery comprises a plurality of storage cells.
9. The system as claimed in claim 8, wherein the plurality of storage cells provides at least 660V.
10. The system as claimed in any one of claims 8 to 9, wherein the plurality of storage cells comprises LiFePO4 cells.
11. The system as claimed in any one of claims 8 to 10, wherein each storage cell provides at least 100 Ah.
12. The system as claimed in any one of claims 1 to 11, wherein the multiphase network provides alternating current selected from a group consisting from 3x560 VAC 60Hz, 3x460 VAC 60Hz, 3x400 VAC 50Hz, 3x220 VAC 50Hz, 3x200 VAC
60Hz, 3x110 VAC 50Hz and 3x110 VAC 60Hz.
60Hz, 3x110 VAC 50Hz and 3x110 VAC 60Hz.
13. The system as claimed in any one of claims 1 to 11, wherein the multiphase network provides alternating current in a voltage range selected from a group consisting of 6kV, 10kV and 20kV.
14. The system as claimed in any one of claims 1 to 13, wherein the electric energy providing unit comprises a plurality of switches for selectively connecting the multiphase motor to the multiphase electronic converter.
15. A method for driving a multiphase motor used in an electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit, the stationary power transformer unit connected to a multiphase network, the method comprising:
providing a system according to claim 1; and controlling the electric energy providing unit to selectively set the system in one of the charging mode and the driving mode, such that:
when in the driving mode, direct current ("DC") power from the battery is converted into multiphase AC power in the multiphase electronic converter and generates drive torque in the multiphase motor; and when in the charging mode, AC power from the stationary power transformer unit is provided to the multiphase electronic converter where the AC
power is converted into DC power and is delivered to the battery.
providing a system according to claim 1; and controlling the electric energy providing unit to selectively set the system in one of the charging mode and the driving mode, such that:
when in the driving mode, direct current ("DC") power from the battery is converted into multiphase AC power in the multiphase electronic converter and generates drive torque in the multiphase motor; and when in the charging mode, AC power from the stationary power transformer unit is provided to the multiphase electronic converter where the AC
power is converted into DC power and is delivered to the battery.
16. The method as claimed in claim 15, further wherein the controlling of the electric energy providing unit comprises receiving a control signal from a controller.
17. An electric automotive vehicle comprising an energy managing unit as claimed in claim 4 for providing energy to a multiphase motor used for moving the electric automotive vehicle, the electric automotive vehicle being connectable to a charging station comprising a charging station connector and a stationary power transformer unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2787418A CA2787418A1 (en) | 2012-08-21 | 2012-08-21 | System and method for managing a multiphase motor in an electric automotive vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2787418A CA2787418A1 (en) | 2012-08-21 | 2012-08-21 | System and method for managing a multiphase motor in an electric automotive vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2787418A1 true CA2787418A1 (en) | 2014-02-21 |
Family
ID=50137396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2787418A Abandoned CA2787418A1 (en) | 2012-08-21 | 2012-08-21 | System and method for managing a multiphase motor in an electric automotive vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2787418A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452279A (en) * | 2016-09-21 | 2017-02-22 | 渤海大学 | Electric vehicle driving motor controller with charging function and control method thereof |
| CN114590155A (en) * | 2022-04-01 | 2022-06-07 | 北京链宇科技有限责任公司 | Portable range extender system |
-
2012
- 2012-08-21 CA CA2787418A patent/CA2787418A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452279A (en) * | 2016-09-21 | 2017-02-22 | 渤海大学 | Electric vehicle driving motor controller with charging function and control method thereof |
| CN106452279B (en) * | 2016-09-21 | 2018-10-30 | 渤海大学 | The driving motor for electric automobile controller and control method of integrated charge function |
| CN114590155A (en) * | 2022-04-01 | 2022-06-07 | 北京链宇科技有限责任公司 | Portable range extender system |
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