CN209088857U - High power density low-speed high-torque motor controller - Google Patents
High power density low-speed high-torque motor controller Download PDFInfo
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- CN209088857U CN209088857U CN201822150872.2U CN201822150872U CN209088857U CN 209088857 U CN209088857 U CN 209088857U CN 201822150872 U CN201822150872 U CN 201822150872U CN 209088857 U CN209088857 U CN 209088857U
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Abstract
The disclosure provides a kind of high power density low-speed high-torque motor controller, comprising: control circuit board, output pulse width modulated signal to isolated form power driving device；And isolated form power driving device, it connect with control circuit board, is operated based on pulse-width signal driving motor；Wherein, isolated form power driving device includes full-bridge MOSFET device and isolated drive circuit plate；Isolated drive circuit plate configures inside full-bridge MOSFET device；Isolated drive circuit plate isolation amplification pulse-width signal, controls the turn-on and turn-off of full-bridge MOSFET device.
Description
Technical field
This disclosure relates to a kind of high power density low-speed high-torque motor controller.
Background technique
The maximum power of power density finger actuator output and the ratio of electric machine controller quality itself or volume, efficiency are
Refer to that output power of power supply uses the conversion ratio of power to real electrical machinery load.The characteristics of low-speed high-torque motor is that busbar voltage is low
That is electromechanics revolving speed is low, and current of electric is that output torque is big greatly.Traditional low-speed high-torque motor application is generally motor warp
Load is driven after retarder again, major defect is that volume weight is big, low efficiency.The dynamical system of electric aircraft is electric-machine directly-driven
Propeller, due to aircraft battery capacity limit, while the weight in view of reducing aircraft, the efficiency for improving electric system are continued a journey
The actual demand of ability still lacks a kind of low-speed high-torque motor that can take into account high conversion efficiency and high power density at this stage
Controller.
Utility model content
In order to solve at least one above-mentioned technical problem, the disclosure provides a kind of high power density low-speed high-torque motor control
Device processed can significantly improve the transfer efficiency and power density of low-speed high-torque motor controller.
According to one aspect of the disclosure, high power density low-speed high-torque motor controller includes:
Control circuit board, output pulse width modulated signal to isolated form power driving device；And
Isolated form power driving device, connect with control circuit board, is operated based on pulse-width signal driving motor；
Wherein, isolated form power driving device includes full-bridge MOSFET device and isolated drive circuit plate；
Isolated drive circuit plate configures inside full-bridge MOSFET device；
Isolated drive circuit plate isolation amplification pulse-width signal, controls the turn-on and turn-off of full-bridge MOSFET device.
According at least one embodiment of the disclosure,
Isolated drive circuit plate includes onboard connector；
Isolated drive circuit plate carries out signal transmitting by onboard connector and control circuit board.
According at least one embodiment of the disclosure,
The female end of onboard connector is located on isolated drive circuit plate, and the male end of onboard connector is located at control circuit board
On.
According at least one embodiment of the disclosure,
Isolated drive circuit plate further includes isolation drive chip；
The output end of isolation drive chip configures capacitor, and capacitor is used to eliminate the Miller effect of full-bridge MOSFET device；
The output end of lower bridge arm isolation drive chip configures zener diode, and zener diode is for protecting full-bridge MOSFET
Device.
According at least one embodiment of the disclosure,
Control circuit board and full-bridge MOSFET device share power input and three-phase output wiring terminal.
According at least one embodiment of the disclosure,
Control circuit board includes signal collection modulation device, master control set and power supply change-over device；
Power supply change-over device is powered after converting busbar voltage into control circuit board and isolated form power driving device；
Signal collection modulation device acquires and improves motor hall position feedback signal, motor temperature signal and controller temperature
Signal is spent, motor hall position feedback signal, motor temperature signal and the controller temperature signal after conditioning are transmitted to master control
Device；
Master control set is based on motor hall position feedback signal, motor temperature signal and the controller temperature signal after conditioning
Control the servo-system of motor, output pulse width modulated signal to isolated form power driving device.
According at least one embodiment of the disclosure,
Busbar voltage is converted to driving power and control power supply by power supply change-over device；
Driving power part and control power unit are realized by isolated power supply module is isolated.
According at least one embodiment of the disclosure,
Busbar voltage 40-60V is converted to 15V by the first isolated power supply module by the driving power part first order, is complete
3 lower bridge arm driving chips of bridge MOSFET device are powered；
The driving power part second level is by 3 the second isolated power supply modules, and the 15V voltage by first order output turns respectively
Change 15V1,15V2 and 15V3, the respectively upper bridge arm driving chip power supply in the 3 of full-bridge MOSFET device into.
According at least one embodiment of the disclosure,
It controls power unit and busbar voltage 40-60V is converted to by 5V by third isolated power supply module.
According at least one embodiment of the disclosure,
The input terminal of controller busbar voltage configures multiple energy storage electrolytic capacitors；
The input terminal of controller busbar voltage 2 two-way transient voltages in parallel inhibit pipe, for absorbing the transient state on bus
Peak voltage.
Detailed description of the invention
Attached drawing shows the illustrative embodiments of the disclosure, and it is bright together for explaining the principles of this disclosure,
Which includes these attached drawings to provide further understanding of the disclosure, and attached drawing is included in the description and constitutes this
Part of specification.
Fig. 1 is the high power density low-speed high-torque motor controller hardware according at least one embodiment of the disclosure
Structure composition relationship and signal flow schematic diagram.
Fig. 2 is to isolate driving circuit figure according to the one of at least one embodiment of the disclosure.
Specific embodiment
The disclosure is described in further detail with embodiment with reference to the accompanying drawing.It is understood that this place
The specific embodiment of description is only used for explaining related content, rather than the restriction to the disclosure.It also should be noted that being
Convenient for description, part relevant to the disclosure is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the disclosure can
To be combined with each other.The disclosure is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
The disclosure provides a kind of high power density low-speed high-torque motor controller, mainly from small size and high power density
From the aspect of, two parts are arranged according to function division, respectively configure the control circuit board in top layer, and configuration in bottom
Isolated form power driving device.The controller has power density height, output power, high-efficient, installation simple and reliably
The high feature of property.
In an optional embodiment of the disclosure, as shown in Figure 1, high power density low-speed high-torque motor controls
Device, including configuring the control circuit board in top layer, and configuration in the isolated form power driving device of bottom.Isolated form power drives
Dynamic device includes full-bridge MOSFET (the Metal-Oxide-Semiconductor Field-Effect configured in bottom 2
Transistor, metal-oxide half field effect transistor) device, and configuration is in the isolated drive circuit plate of bottom 1, isolated drive circuit
Plate is embedded in inside full-bridge MOSFET device.
Wherein, control circuit board includes signal collection modulation device, master control set, power supply change-over device and communication device.
Specifically, power supply change-over device is used to for the 40-60V voltage of bus to be converted into power supply needed for power drive and control power supply, it is
Control circuit board and the power supply of isolated form power driving device, power supply change-over device can also be used in electrifying timing sequence control.Signal acquisition
Conditioning device is used to acquiring and improving servo motor hall position feedback signal, motor temperature signal and controller temperature signal,
Motor hall position feedback signal, motor temperature signal and controller temperature signal after conditioning is transmitted to master control set.It is main
Control device can based on host computer send signal, in conjunction with the motor hall position feedback signal after conditioning, motor temperature signal
With controller temperature signal, the control of position ring, speed ring is completed by servo operation, controls the servo-system of motor, export
PWM (Pulse Width Modulation, pulsewidth modulation) signal to isolated form power driving device, further driving motor is transported
Turn.Communication device includes CAN (Controller Area Network, controller local area network) communication and RS485 communication.On
Position machine is connected by CAN bus and RS485 bus with master control set.
Isolated form power driving device includes full-bridge MOSFET device and the isolation that is embedded in inside full-bridge MOSFET device
Drive circuit board.Preferably, the model FM600TU-07A of full-bridge MOSFET device, rated current 300A, peak point current
600A, maximum operating voltage 75V, sustainable output 15KW or more power；Full-bridge MOSFET device uses trench process, volume
It is all smaller with weight, so as to so that entire controller has high power density.Preferably, remove the factory of full-bridge MOSFET device
Original-pack interface card replaces the interface card with isolated drive circuit plate, and the interface on former interface card replaces with
Onboard connector on isolated drive circuit plate.Preferably, the model of isolation drive chip used in isolated drive circuit plate
1EDI20N12AF.The isolated drive circuit plate being embedded in inside full-bridge MOSFET device is defeated for amplification control circuit plate to be isolated
Pwm signal out controls the turn-on and turn-off of full-bridge MOSFET device.
In an optional embodiment of the disclosure, control circuit board is connect with isolated form power driving device.Specifically
, control circuit board, which passes through, carries out signal transmitting between onboard connector and isolated drive circuit plate, both can reduce control in this way
The volume weight of device entirety processed, electromagnetic interference caused by can also being transmitted to avoid signal long-distance.Control circuit board and full-bridge
MOSFET device shares power input and three-phase output wiring terminal, fixes control circuit board it is, for example, possible to use screw and pacifies
It is realized above full-bridge MOSFET device.
In an optional embodiment of the disclosure, the master control set of control circuit board includes DSP (Digital
Signal Processing, Digital Signal Processing) chip, it is preferred that the model TMS20F28335 of dsp chip, dominant frequency are
150MHz supports floating-point operation, is the special chip for being suitble to motor control.Dsp chip can complete servo operation, by specific
Control algolithm complete high speed position ring, speed ring control and pwm signal output control.Dsp chip also undertakes part and connects
Mouth work and the processing of CAN bus communication data.The interface that dsp chip utilizes includes: that ADC interface, PWM output interface, Flash are deposited
Store up the SPI interface (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) of interface, external event captures interface
ECAP, emulator interface, general I/O interface and reset circuit interface.Wherein, ADC interface can be used for the electric currents such as motor, power supply and
Simulate the collection of simulant signal conversion of control interface.PWM output interface can be used for isolated form power drive after pwm signal output
Device, it is preferred that the pwm signal using DSP includes tetra- tunnel PWM1, PWM2, PWM3 and PWM6, wherein PWM1, PWM2 and PWM3
It can be used for isolated form power driving device, PWM6 is reserved.ECAP interface is position feedback information interface, and it is anti-to can be used for hall position
Feedback signal acquisition.Preferably, CAN bus communication selection ISO1050 transceiver.CAN bus is mainly used for and host computer
Communication, including real-time control and control parameter modify two aspect contents.Control parameter is stored in the FLASH of SPI interface, is used for
The storage and reading of controller control parameter.Real-time control is mainly the modification of variable and information feedback in DSP main program.It resets
Circuit interface can be used for power-off reset.Preferably, power supply is worked as DSP reset chip using power supply of microprocessor monitoring chip
Voltage can produce reset signal when being lower than 2.32V.In addition, JTAG (Joint Test Action Group, joint test work
Group) interface can be used for debugging and burning program.The active crystal oscillating circuit of the 25MHZ of 3.3V power supply can be used in clock circuit.
In an optional embodiment of the disclosure, the power supply change-over device of control circuit board can be by busbar voltage
40-60V is converted to power driving power supply and control power supply, and two power units realize isolation.The driving power part first order can
To use the isolated power supply module (the first isolated power supply module) of model village field NCS3S4815SC, busbar voltage is converted to
15V, this 15V voltage are powered to the lower bridge arm driving chip (such as model 1EDI20N12AF) to full-bridge MOSFET device,
3 lower bridge arm driving chips share this 15V voltage.The 15V voltage that the driving power part second level uses the first order to export passes through
The isolated power supply module (the second isolated power supply module) that 3 15V turn the model NME1515SC of 15V is converted into 15V1 respectively,
15V2,15V3, this 3 15V power supplys give upper bridge arm driving chip (such as the model of 3 full-bridge MOSFET devices respectively
1EDI20N12AF) power.All 15V power supplys can connect 1 3K ohm of load resistance.Control power supply can pass through model
Busbar voltage is converted into 5V for the isolated power supply module (third isolated power supply module) of NCS3S4805SC.Preferably, bus electricity
Multiple (such as 12) energy storage electrolytic capacitors and 2 two-way TVS pipe (Transient Voltage can be used in pressure input terminal
Suppressor, transient voltage suppressor), it is preferred that the model EEUFR1J821 of energy storage electrolytic capacitor can be installed
In the bottom surface of control circuit board, installation volume is saved；The model of two-way TVS pipe can choose SMBJ64CA.
In an optional embodiment of the disclosure, as shown in Fig. 2, isolation drive core used in isolated drive circuit plate
Piece can choose model 1EDI20N12AF.The output end of isolation drive chip can connect a small capacitances, for eliminating
The Miller effect of switch mosfet.Wherein, the output end of lower bridge arm driving chip can also connect 1 zener diode (following figure),
To protect MOSFET.
In an optional embodiment of the disclosure, full-bridge MOSFET device can choose model FM600TU-07A,
Its rated current is big, and it is low that internal resistance is connected in MOSFET.In general, default installation interface card when full-bridge MOSFET device is dispatched from the factory,
Interface circuit effect is signal converting, is not suitable for the installation of circuit board level, and it is elongated to will lead to MOSFET drive signal line.Cause
This, it is preferred that is with interface card original-pack in isolated drive circuit plate replacement full-bridge MOSFET device, isolated drive circuit plate
It is constant with the mounting hole of full-bridge MOSFET device, onboard connection of the interface on isolated drive circuit plate on former interface card
Device is realized.
In an optional embodiment of the disclosure, the mounting means of high power density low-speed high-torque motor controller
Simply, control circuit board, the isolation that lower layer installs full-bridge MOSFET device and is embedded in inside MOSFET device are installed by top layer
Power driving device.Preferably, when using controller, directly 4 mounting holes of MOSFET device can be filled with 4 M6 screws
On a heat sink, heat conductive silica gel can be smeared with radiator contact surface.MOSFET device can by included signal pin with
Isolated drive circuit plate interactive information, isolated drive circuit plate then can interact letter with control circuit board by onboard connector
Breath.Preferably, onboard connector female end is located on isolated drive circuit plate, and onboard connector male end is located in control circuit board.
The high power density low-speed high-torque motor controller of the disclosure can continue output high current, that is, large torque, make
Motor reducer can be saved when driving the load of propeller class by obtaining low-speed high-torque motor, while reducing weight significantly
Improve the efficiency of entire electric motor system.MOSFET device uses trench process, and under room temperature, MOSFET conducting internal resistance only has 0.5
Milliohm, therefore the MOSFET conduction loss as caused by high current is low, so as to improve controller efficiency.In addition, controller
Control section is all isolated with power section, and wherein pwm signal is isolated using MOSFET driving chip, and power unit can be used
DC/DC power module is isolated, the switch of power section MOSFET high frequency will not interfere control section, so as to improve entire control
The reliability of device processed.
It will be understood by those of skill in the art that above embodiment is used for the purpose of clearly demonstrating the disclosure, and simultaneously
Non- be defined to the scope of the present disclosure.For those skilled in the art, may be used also on the basis of disclosed above
To make other variations or modification, and these variations or modification are still in the scope of the present disclosure.
Claims (10)
1. a kind of high power density low-speed high-torque motor controller characterized by comprising
Control circuit board, output pulse width modulated signal to isolated form power driving device；And
Isolated form power driving device is connect with the control circuit board, is operated based on the pulse-width signal driving motor；
Wherein, isolated form power driving device includes full-bridge MOSFET device and isolated drive circuit plate；
The isolated drive circuit plate configuration is inside full-bridge MOSFET device；
The pulse-width signal is amplified in the isolated drive circuit plate isolation, controls conducting and the pass of full-bridge MOSFET device
It is disconnected.
2. controller according to claim 1, which is characterized in that
The isolated drive circuit plate includes onboard connector；
The isolated drive circuit plate carries out signal transmitting by onboard connector and the control circuit board.
3. controller according to claim 2, which is characterized in that
The female end of the onboard connector is located on the isolated drive circuit plate, and the male end of the onboard connector is located at described
In control circuit board.
4. controller according to claim 1 or 2, which is characterized in that
The isolated drive circuit plate further includes isolation drive chip；
The output end of the isolation drive chip configures capacitor, and the capacitor is used to eliminate the Miller of the full-bridge MOSFET device
Effect；
The output end of lower bridge arm isolation drive chip configures zener diode, and the zener diode is for protecting the full-bridge
MOSFET device.
5. controller according to claim 1 or 2, which is characterized in that
The control circuit board and full-bridge MOSFET device share power input and three-phase output wiring terminal.
6. controller according to claim 5, which is characterized in that
The control circuit board includes signal collection modulation device, master control set and power supply change-over device；
The power supply change-over device is powered after converting busbar voltage into the control circuit board and isolated form power driving device；
The signal collection modulation device acquires and improves motor hall position feedback signal, motor temperature signal and controller temperature
Signal is spent, motor hall position feedback signal, motor temperature signal and the controller temperature signal after conditioning are transmitted to described
Master control set；
The master control set is based on motor hall position feedback signal, motor temperature signal and the controller temperature signal after conditioning
Control the servo-system of motor, output pulse width modulated signal to the isolated form power driving device.
7. controller according to claim 6, which is characterized in that
Busbar voltage is converted to driving power and control power supply by the power supply change-over device；
The driving power part and control power unit are realized by isolated power supply module is isolated.
8. controller according to claim 7, which is characterized in that
Busbar voltage 40-60V is converted to 15V by the first isolated power supply module by the driving power part first order, for institute
State 3 lower bridge arm driving chips power supply of full-bridge MOSFET device；
The driving power part second level is by 3 the second isolated power supply modules, and the 15V voltage by first order output turns respectively
Change 15V1,15V2 and 15V3, the upper bridge arm driving chip power supply of 3 of the respectively described full-bridge MOSFET device into.
9. controller according to claim 7, which is characterized in that
Busbar voltage 40-60V is converted to 5V by third isolated power supply module by the control power unit.
10. controller according to claim 7, which is characterized in that
The input terminal of the controller busbar voltage configures multiple energy storage electrolytic capacitors；
The input terminal of the controller busbar voltage 2 two-way transient voltages in parallel inhibit pipe, for absorbing the transient state on bus
Peak voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822150872.2U CN209088857U (en) | 2018-12-20 | 2018-12-20 | High power density low-speed high-torque motor controller |
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| CN201822150872.2U CN209088857U (en) | 2018-12-20 | 2018-12-20 | High power density low-speed high-torque motor controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113726224A (en) * | 2021-09-13 | 2021-11-30 | 雅迪科技集团有限公司 | Motor controller of integrative encapsulation |
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2018
- 2018-12-20 CN CN201822150872.2U patent/CN209088857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113726224A (en) * | 2021-09-13 | 2021-11-30 | 雅迪科技集团有限公司 | Motor controller of integrative encapsulation |
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