CN108768236A - Motor control method, device, electron speed regulator and unmanned vehicle - Google Patents

Motor control method, device, electron speed regulator and unmanned vehicle Download PDF

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Publication number
CN108768236A
CN108768236A CN201810579472.5A CN201810579472A CN108768236A CN 108768236 A CN108768236 A CN 108768236A CN 201810579472 A CN201810579472 A CN 201810579472A CN 108768236 A CN108768236 A CN 108768236A
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China
Prior art keywords
current
speed regulator
electron speed
shaft voltages
motor
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CN201810579472.5A
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Chinese (zh)
Inventor
陈毅东
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Shenzhen Autel Intelligent Aviation Technology Co Ltd
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Shenzhen Autel Intelligent Aviation Technology Co Ltd
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Application filed by Shenzhen Autel Intelligent Aviation Technology Co Ltd filed Critical Shenzhen Autel Intelligent Aviation Technology Co Ltd
Priority to CN201810579472.5A priority Critical patent/CN108768236A/en
Priority to PCT/CN2018/112881 priority patent/WO2019233021A1/en
Publication of CN108768236A publication Critical patent/CN108768236A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P21/00Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/22Current control, e.g. using a current control loop
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/02Aircraft characterised by the type or position of power plants
    • B64D27/24Aircraft characterised by the type or position of power plants using steam or spring force
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04Arrangements 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
    • H02P27/06Arrangements 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
    • H02P27/08Arrangements 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 with pulse width modulation

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

The present embodiments relate to a kind of motor control method, device, electron speed regulator and unmanned vehicle, the method includes:Obtain current battery level UdcAnd q shaft voltages input instruction uqref0, according to the current battery level UdcAnd the q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref;According to the current q shaft voltages uqref, motor is controlled.The embodiment of the present invention is according to current battery level UdcAnd q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref.It can be according to current battery level UdcVariation adjust current q shaft voltages u in real timeqrefValue, can change to avoid cell voltage it is excessive caused by motor the problem of controlling poor robustness, improve the robustness of motor control, and do not interfere with the mobility range of unmanned vehicle.

Description

Motor control method, device, electron speed regulator and unmanned vehicle
Technical field
The present embodiments relate to motor control technology fields, more particularly to a kind of motor control method, device, electronics Governor and unmanned vehicle.
Background technology
Unmanned vehicle is a kind of by radio robot and built-in program controls the not manned of flight attitude Aircraft has been widely used in military and civil field.Blade is generally mounted on motor by unmanned vehicle, passes through motor The rotation of rotor drives the rotation of blade, and the power for rising or advancing is provided by the unmanned vehicle that rotates to be of blade.
Unmanned vehicle mostly uses lithium battery and is powered, and electricity can continuously decrease in flight course.Certain specific In the case of, when battery gives big load supplying, the case where cell output voltage is pulled low there is likely to be moment.If electric Pond output voltage variation is apparent, can lead to electric machine control system poor robustness, to cause motor waveform anamorphic system efficiency to drop Low, it is also possible to leading to motor stall when serious, or even there are the risks of aircraft bombing.
Currently, the above situation usually is prevented by the way that the given maximum value of active voltage is arranged, but this method drops The low mobility range of unmanned vehicle is not suitable for the high unmanned vehicle of some mobility area requirements.
Invention content
The purpose of the embodiment of the present invention is to provide a kind of mobility range not influencing unmanned vehicle and motor control Shandong The good motor control method of stick, device, electron speed regulator and unmanned vehicle.
In order to solve the above technical problems, in a first aspect, an embodiment of the present invention provides a kind of motor control method, the side Method is used for electron speed regulator, the method includes:
Obtain current battery level UdcAnd q shaft voltages input instruction uqref0, according to the current battery level UdcAnd The q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref
According to the current q shaft voltages uqref, motor is controlled.
In some embodiments, the current q shaft voltages areWherein, Udc_maxIt is default the One voltage.
In some embodiments, the default first voltage is Udc_max=k*U'dc_max, wherein 0.7≤k≤0.9, U'dc_maxFor maximum busbar voltage;
The maximum busbar voltage is that the electron speed regulator drops to the second default throttle value by the first default throttle value When battery voltage value.
In some embodiments, the described first default throttle value is the throttle range higher limit of the electron speed regulator, institute State the throttle lower range limit that the second default throttle value is the electron speed regulator.
In some embodiments, the method further includes:
If the current battery level UdcThe time for being consistently less than minimum voltage threshold value is more than preset time threshold, then sends out Send alarm command.
Second aspect, the embodiment of the present invention additionally provide a kind of motor control assembly, and described device is used for electron speed regulator, Described device includes:
Current q shaft voltage acquisition modules, for obtaining current battery level UdcAnd q shaft voltages input instruction uqref0, root According to the current battery level UdcAnd the q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref
Motor control module, for according to the current q shaft voltages uqref, motor is controlled.
In some embodiments, the current q shaft voltages areWherein, Udc_maxIt is default the One voltage.
In some embodiments, the default first voltage is Udc_max=k*U'dc_max, wherein 0.7≤k≤0.9, U'dc_maxFor maximum busbar voltage;
The maximum busbar voltage is that the electron speed regulator drops to the second default throttle value by the first default throttle value When battery voltage value.
In some embodiments, the described first default throttle value is the throttle range higher limit of the electron speed regulator, institute State the throttle lower range limit that the second default throttle value is the electron speed regulator.
In some embodiments, described device further includes:
Alarm command sending module, if being used for the current battery level UdcIt is consistently less than the time of minimum voltage threshold value More than preset time threshold, then alarm command is sent.
The third aspect, the embodiment of the present invention additionally provide a kind of electron speed regulator, the operating for controlling motor, the electricity Sub- governor includes the electric machine controller and motor driver being electrically connected, and the electric machine controller and the motor driver are equal For being electrically connected with the motor, the electric machine controller includes:
At least one processor;And
The memory being connect at least one processor communication;Wherein,
The memory is stored with the instruction that can be executed by least one processor, and described instruction is by described at least one A processor executes, so that at least one processor is able to carry out above-mentioned method.
Fourth aspect, the embodiment of the present invention additionally provide a kind of unmanned vehicle, including:
Fuselage;
Flight controller, motor and the electron speed regulator for controlling the motor operation being set on the fuselage, The electron speed regulator is above-mentioned electron speed regulator.
5th aspect, the embodiment of the present invention additionally provide a kind of non-volatile computer readable storage medium storing program for executing, the calculating Machine readable storage medium storing program for executing is stored with computer executable instructions, when the computer executable instructions are executed by unmanned vehicle When, so that the unmanned vehicle is executed above-mentioned method.
The embodiment of the present invention is according to current battery level UdcAnd q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref.It can be according to current battery level UdcVariation adjust current q shaft voltages u in real timeqrefValue, can be to avoid cell voltage The problem of changing excessive caused motor control poor robustness, improves the robustness of motor control, and does not interfere with nobody The mobility range of aircraft.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described.It should be evident that drawings described below is only some embodiments of the present invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 a are the application scenarios schematic diagrams of motor control method and device of the present invention;
Fig. 1 b are the hardware configurations of electron speed regulator 20 in an application scenarios of motor control method and device of the present invention Schematic diagram;
Fig. 2 is the flow chart of one embodiment of motor control method of the present invention;
Fig. 3 be motor control method of the present invention one embodiment in motor control principle schematic diagram;
Fig. 4 a are the motor current waveform schematic diagrames using the motor control method of the prior art;
Fig. 4 b are the motor current waveform schematic diagrames using the motor control method of the embodiment of the present invention;
Fig. 5 is the structural schematic diagram of one embodiment of motor control assembly of the present invention;
Fig. 6 is the structural schematic diagram of one embodiment of motor control assembly of the present invention;
Fig. 7 is the hardware architecture diagram of electron speed regulator provided in an embodiment of the present invention.
Specific implementation mode
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with specific embodiment, And with reference to attached drawing, the present invention is described in more detail.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
Motor control method and device provided in an embodiment of the present invention are suitable for application scenarios shown in Fig. 1 a, the application Scene includes unmanned vehicle 100, and unmanned vehicle 100 includes motor 10, electron speed regulator 20 and flight controller 30.Its In, flight controller 30 is the control system of unmanned vehicle 100, for sending throttle control signal to electron speed regulator 20 (such as q shaft voltages input instruction) and other control signals.What electron speed regulator 20 was used to be sent according to flight controller 30 Control signal adjustment motor 10 rotating speed, motor 10 be used for drive unmanned vehicle 100 blade (not shown) rotate from And the flight for unmanned vehicle 100 provides power.
Fig. 1 a and Fig. 1 b are please referred to, electron speed regulator 20 includes motor driver 21 and electric machine controller 22, wherein motor Driver 21 is such as inverter.Electric machine controller 22 receive the detection of current sensor (not shown) from motor 10 Two-phase or three-phase current signal are (if detection biphase current signal, another phase current signal can pass through kirchhoff's principle meter It calculates and obtains).Based on the three-phase current signal, d axis feedback current and q axis feedback currents can be obtained.22 base of electric machine controller Control signal is generated by certain control strategy in the d axis feedback current and q axis feedback current, then passes through the control signal It controls motor driver 21 (such as inverter) and generates 10 operation of motor drive signal driving motor.The control strategy is for example electric Flowing ring, speed ring+electric current loop and portion of electrical current ring, (directly given, the current d shaft voltages of i.e. current q shaft voltages pass through to d axis electricity Stream is exported using pi regulator closed loop) etc..
Such as one of which portion of electrical current ring control strategy, electric machine controller 22 receive the q axis that flight controller 30 is sent Control source instructs, and obtains the current battery level U of the supplying cell 40 of motor driver 21dc, worked as based on the two Preceding q shaft voltages.Current d shaft voltages are obtained by carrying out PI control and regulation to given d shaft currents instruction and d axis feedback currents.Electricity Machine controller 22 (can be obtained according to current q shaft voltages, current d shaft voltages and current rotor angle, θ by noninductive control algolithm ), Park transformation is carried out to current q shaft voltages and current d shaft voltages and Clarke transformation obtains three-phase voltage and controls signal.Electricity Machine driver 21 (illustrating so that motor driver 21 is inverter as an example) controls signal according to three-phase voltage, to cell voltage UdcInto Row PWM, which is adjusted, generates three phase electric machine drive signal, and it is output to motor 10.
According to current battery level UdcCurrent q shaft voltages are obtained, it can be according to cell voltage UdcVariation in real time adjustment work as The value of preceding q shaft voltages avoids the problem that the excessive caused motor control poor robustness of cell voltage variation.
Wherein, unmanned vehicle 100 can be the unmanned vehicle of any suitable type, such as rotor unmanned aircraft, Including typical quadrotor unmanned vehicle, DCB Specimen unmanned vehicle and six rotor unmanned aircrafts etc., the embodiment of the present invention This is not construed as limiting.Motor 10 can be the motor of the suitable type such as permanent magnet synchronous motor or asynchronous AC motor.
In addition to unmanned vehicle, it is various motor-driven that motor provided in an embodiment of the present invention is also applied to other In loose impediment, such as steamer, robot etc..
Fig. 2 is the flow diagram of one embodiment of motor control method provided in an embodiment of the present invention, the motor Control method can be executed by the electric machine controller 22 in the electron speed regulator 20 in Fig. 1, as shown in Fig. 2, the motor controls Method includes:
101:Obtain current battery level UdcAnd q shaft voltages input instruction uqref0, according to the current battery level Udc And the q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref
Wherein, cell voltage UdcFig. 1 b are please referred to, are the supplying cell voltage of motor driver 21 in electron speed regulator 20. Q shaft voltages input instruction uqref0Can be that other controllers or control chip are sent to electron speed regulator 20, in electronic speed regulation Device 20 is used for the occasion of unmanned vehicle 100, q shaft voltages input instruction uqref0Can be the winged control control of unmanned vehicle 100 Device 30 is sent to electron speed regulator 20.
Specifically, in some embodiments, according to current battery level UdcAnd q shaft voltages input instruction uqref0It obtains Current q shaft voltages uqref, can be according to current battery level UdcA coefficient is obtained, then the coefficient and q shaft voltages are inputted Instruct uqref0It is multiplied.The coefficient can be such as UdcDivided by the quotient of a certain voltage value, i.e., current q shaft voltagesWherein, Udc_maxTo preset first voltage, in some embodiments, the default first voltage can To be that voltage value that battery is expired under electric condition in further embodiments can also be according to maximum busbar voltage U'dc_maxIt obtains, Such as Udc_max=k*U'dc_max, wherein k can be with value for 0.7≤k≤0.9.
It can charge the battery when in view of motor reduction, maximum busbar voltage U'dc_maxIt can be prepared by the following, One higher throttle value first of selection presets throttle value and a lower throttle value second presets throttle value, passes through other Controller (being flight controller 30 in the occasion of unmanned vehicle) control electron speed regulator 20 is declined by the first default throttle value To the second default throttle value, battery voltage value at this time is recorded as maximum busbar voltage U'dc_max
Wherein, in some embodiments, the first default throttle value be electron speed regulator 20 throttle range higher limit, second Default throttle value is the throttle lower range limit of electron speed regulator 20.With the throttle of electron speed regulator 20 ranging from 1200- Illustrate for 1900us, the first default throttle value is 1900us, and the second default throttle value is 1200us.Certainly, the first default oil The value that gate value can also take other larger, such as 1850, the value that the second default throttle value can also take other smaller, such as 1250, the embodiment of the present invention is not restricted this.
The occasion of a supplying cell, such as multiple motors in certain unmanned vehicles are shared in multiple electron speed regulators Electron speed regulator share a battery, illustrate by taking quadrotor unmanned vehicle as an example, the electron speed regulators of four motors shares One supplying cell then obtains maximum busbar voltage U'dc_maxWhen, four electronic speed regulations can be controlled by flight controller Drop to the second default throttle value from the first default throttle value records cell voltage at this time to device to charge the battery simultaneously Value is used as U'dc_max
102:According to the current q shaft voltages uqref, motor is controlled.
Current q shaft voltages u is obtained by step 101qref, current d shaft voltages can be by using PI tune to d shaft currents Save the output of device closed loop.The specific method for illustrating motor control by taking Fig. 3 as an example below, is obtained by current sensor (not shown) The biphase current ia and ib of motor (in figure by taking permanent magnet synchronous motor as an example) are obtained, it is former that another phase current ic can pass through kirchhoff Reason, which calculates, to be obtained, and carries out Clark transformation to ia, ib and ic and Park transformation obtains current d shaft currents IdWith current q shaft currents Iq.By current d shaft currents IdWith the d shaft currents I of last momentdrefThe deviation of (initial d shaft currents are target d shaft currents) introduces Pi regulator obtains current d shaft voltages udref.According to current battery level UdcAnd q shaft voltages input instruction uqref0It obtains current Q shaft voltages uqref.To current d shaft voltages udrefWith current q shaft voltages uqrefProgress Park inverse transformations simultaneously (can according to rotor angle To be obtained by noninductive control algolithm) three-phase voltage command is obtained, PWM tune is then carried out to inverter according to three-phase voltage command Section outputs a control signal to motor.
The embodiment of the present invention is according to current battery level UdcAnd q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref.It can be according to current battery level UdcVariation adjust current q shaft voltages u in real timeqrefValue, can be to avoid cell voltage The problem of changing excessive caused motor control poor robustness, improves the robustness of motor control, and does not interfere with nobody The mobility range of aircraft.
Motor control method provided in an embodiment of the present invention remains to keep good Shandong when cell voltage changes greatly Stick.It is using the motor current waveform figure of the motor control method of the prior art to please refer to Fig. 4 a and Fig. 4 b, Fig. 4 a, and Fig. 4 b are Using the motor current waveform figure of the motor control method of the embodiment of the present invention, wherein the curve being located above is current of electric Waveform, underlying curve are line voltage oscillogram.As can be seen from Figure, in Fig. 4 a, when cell voltage is relatively low, occur The case where current waveform distortion, and in Fig. 4 b, current waveform sine degree is good.
It is used for the occasion of unmanned vehicle 100 in certain application scenarios of electron speed regulator 20, such as electron speed regulator 20, If cell voltage is relatively low, the maximum (top) speed of motor also can be reduced accordingly, if cell voltage holding less than a certain voltage value The continuous time is more than certain time, and there will be risks when unmanned vehicle 100 does various postures in the air.Therefore, in order to realize nothing The safe flight of people's aircraft 100, when there is the above situation, i.e., if current battery level UdcIt is consistently less than minimum voltage threshold The time of value is more than preset time threshold, then sends alarm command.
Wherein, alarm command can issue other controllers, and the field of unmanned vehicle 100 is used in electron speed regulator 20 It closes, alarm command can issue flight controller 30, so that flight controller 30 controls unmanned vehicle 100 and makes a return voyage.Or it will Alarm command is sent to remote controler, so that manipulator knows the danger, to take safety measures in time.
Minimum voltage threshold value can be according to the concrete application situation value of electron speed regulator 20, or according to electron speed regulator 20 concrete application situation is obtained by operation, for example, when electron speed regulator 20 is applied to unmanned vehicle, minimum voltage threshold Value can be according to the blade of the maximum attitude angle of unmanned vehicle 100, the weight of unmanned vehicle 100, unmanned vehicle 10 Output situation and current rotating speed operation obtain.
Correspondingly, the embodiment of the present invention additionally provides a kind of motor control assembly, described device is used for electron speed regulator 20, Fig. 5 is please referred to, motor control assembly 500 includes current q shaft voltages acquisition module 501 and motor control module 502.Wherein, when Preceding q shaft voltages acquisition module 501 is for obtaining current battery level UdcInstruction u is inputted with q shaft voltagesqref0, and according to current Cell voltage UdcAnd q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref.Motor control module 502 is used for basis The current q shaft voltages u that current q shaft voltages acquisition module 501 obtainsqrefMotor is controlled.
The embodiment of the present invention is according to current battery level UdcAnd q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref.It can be according to current battery level UdcVariation adjust current q shaft voltages u in real timeqrefValue, can be to avoid cell voltage The problem of changing excessive caused motor control poor robustness, improves the robustness of motor control, and does not interfere with nobody The mobility range of aircraft.
In some embodiments of motor control assembly 500, the current q shaft voltages areIts In, Udc_maxTo preset first voltage.
Wherein, in some embodiments, it is U to preset first voltagedc_max=k*U'dc_max, wherein 0.7≤k≤0.9, U'dc_maxFor maximum busbar voltage;
The maximum busbar voltage is that the electron speed regulator drops to the second default throttle value by the first default throttle value When battery voltage value.
Wherein, in some embodiments, the described first default throttle value is the throttle range limit of the electron speed regulator Value, the second default throttle value are the throttle lower range limit of the electron speed regulator.
In other embodiments of motor control assembly 500, Fig. 6 is please referred to, motor control assembly 500 further includes:
Alarm command sending module 503, if being used for the current battery level UdcIt is consistently less than minimum voltage threshold value Time is more than preset time threshold, then sends alarm command.
It should be noted that above-mentioned motor control assembly can perform the motor control method that the embodiment of the present invention is provided, Have the corresponding function module of actuating motor control method and advantageous effect.Not in device embodiment, the technology of detailed description is thin Section, reference can be made to the motor control method that the embodiment of the present invention is provided.
As shown in fig. 7, the embodiment of the present invention additionally provides a kind of electron speed regulator 20, electron speed regulator 20 includes electrically connecting The electric machine controller 22 and motor driver 21 connect, electric machine controller 22 and motor driver 21 are used to electrically connect with motor 10 It connects, electric machine controller 22 includes:
One or more processors 221 and memory 222, in Fig. 7 by taking a processor 221 as an example.221 He of processor Memory 222 can be connected by bus or other modes, in Fig. 7 by taking bus connects as an example.
Memory 222 is used as a kind of non-volatile computer readable storage medium storing program for executing, can be used for storing non-volatile software journey Sequence, non-volatile computer executable program and module, such as the corresponding program of motor control method in the embodiment of the present invention Instruction/unit (for example, attached current q shaft voltages acquisition module 501 shown in fig. 5 and motor control module 502).Processor 221 It is stored in non-volatile software program, instruction and unit in memory 222 by operation, to execute electron speed regulator The motor control method of above method embodiment is realized in various function application and data processing.
Memory 222 may include storing program area and storage data field, wherein storing program area can store operation system System, the required application program of at least one function;Storage data field, which can be stored, uses created number according to electron speed regulator According to etc..In addition, memory 222 may include high-speed random access memory, can also include nonvolatile memory, such as extremely A few disk memory, flush memory device or other non-volatile solid state memory parts.In some embodiments, memory 222 it is optional include the memory remotely located relative to processor 221, these remote memories can pass through network connection to electricity Sub- governor.The example of above-mentioned network includes but not limited to internet, intranet, LAN, mobile radio communication and its group It closes.
One or more of units are stored in the memory 222, when by one or more of processors When 221 execution, the motor control method in above-mentioned any means embodiment is executed, for example, executing the side in Fig. 2 described above Method step 101-102 realizes the function of module 501-502 shown in fig. 5, module 501-503 shown in fig. 6.
Above-mentioned electron speed regulator can perform the motor control method that the embodiment of the present invention is provided, and it is corresponding to have execution method Function module and advantageous effect.The technical detail of detailed description not in electron speed regulator embodiment, reference can be made to the present invention is real Apply the method that example is provided.
The embodiment of the present invention additionally provides a kind of non-volatile computer readable storage medium storing program for executing, the computer-readable storage Media storage has computer executable instructions, which is executed by one or more processors, such as in Fig. 7 A processor 221, may make said one or multiple processors to can perform the motor control in above-mentioned any means embodiment Method processed realizes module 501-502, Fig. 6 shown in fig. 5 for example, executing the method and step 101-102 in Fig. 2 described above Shown in module 501-503 function.
As shown in Figure 1, the embodiment of the present invention additionally provides a kind of unmanned vehicle 100, unmanned vehicle 100 includes:
Fuselage;
Flight controller 30, motor 10 and the electronics tune for controlling the operation of the motor 10 being installed on the fuselage Fast device 20, the electron speed regulator 20 are above-mentioned electron speed regulator.
Above-mentioned unmanned vehicle 100 includes electron speed regulator provided in an embodiment of the present invention, has its corresponding function mould Block and advantageous effect.The technical detail of detailed description not in unmanned vehicle embodiment, reference can be made to the embodiment of the present invention is carried The electron speed regulator of confession.
Finally it should be noted that:Above example is only to illustrate the technical solution of the application, rather than its limitations;At this It under the thinking of application, can also be combined between the technical characteristic in above example or different embodiment, step can be with It is realized with random order, and there are many other variations of the different aspect of the application as described above, for simplicity, they do not have Have and is provided in details;Although the application is described in detail with reference to the foregoing embodiments, the ordinary skill people of this field Member should understand that:It still can be with technical scheme described in the above embodiments is modified, or to which part skill Art feature carries out equivalent replacement;And these modifications or replacements, each reality of the application that it does not separate the essence of the corresponding technical solution Apply the range of a technical solution.

Claims (13)

1. a kind of motor control method, the method is used for electron speed regulator, which is characterized in that the method includes:
Obtain current battery level UdcAnd q shaft voltages input instruction uqref0, according to the current battery level UdcAnd it is described Q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref
According to the current q shaft voltages uqref, motor is controlled.
2. according to the method described in claim 1, it is characterized in that, the current q shaft voltages are Wherein, Udc_maxTo preset first voltage.
3. according to the method described in claim 2, it is characterized in that, the default first voltage is Udc_max=k*U'dc_max, In, 0.7≤k≤0.9, U'dc_maxFor maximum busbar voltage;
The maximum busbar voltage is when the electron speed regulator drops to the second default throttle value by the first default throttle value Battery voltage value.
4. according to the method described in claim 3, it is characterized in that, the first default throttle value is the electron speed regulator Throttle range higher limit, the second default throttle value are the throttle lower range limit of the electron speed regulator.
5. according to the method described in any of claim 1 to 4, which is characterized in that the method further includes:
If the current battery level UdcThe time for being consistently less than minimum voltage threshold value is more than preset time threshold, then sends report Alert instruction.
6. a kind of motor control assembly, described device is used for electron speed regulator, which is characterized in that described device includes:
Current q shaft voltage acquisition modules, for obtaining current battery level UdcAnd q shaft voltages input instruction uqref0, according to institute State current battery level UdcAnd the q shaft voltages input instruction uqref0Obtain current q shaft voltages uqref
Motor control module, for according to the current q shaft voltages uqref, motor is controlled.
7. device according to claim 6, which is characterized in that the current q shaft voltages are Wherein, Udc_maxTo preset first voltage.
8. device according to claim 7, which is characterized in that the default first voltage is Udc_max=k*U'dc_max, In, 0.7≤k≤0.9, U'dc_maxFor maximum busbar voltage;
The maximum busbar voltage is when the electron speed regulator drops to the second default throttle value by the first default throttle value Battery voltage value.
9. device according to claim 8, which is characterized in that the first default throttle value is the electron speed regulator Throttle range higher limit, the second default throttle value are the throttle lower range limit of the electron speed regulator.
10. according to the device described in claim 6-9 any one, which is characterized in that described device further includes:
Alarm command sending module, if being used for the current battery level UdcThe time for being consistently less than minimum voltage threshold value is more than Preset time threshold then sends alarm command.
11. a kind of electron speed regulator, the operating for controlling motor, the electron speed regulator include the motor control being electrically connected Device and motor driver, the electric machine controller and the motor driver are used to be electrically connected with the motor, feature It is, the electric machine controller includes:
At least one processor;And
The memory being connect at least one processor communication;Wherein,
The memory is stored with the instruction that can be executed by least one processor, and described instruction is by least one place It manages device to execute, so that at least one processor is able to carry out claim 1-5 any one of them methods.
12. a kind of unmanned vehicle, which is characterized in that including:
Fuselage;
Flight controller, motor and the electron speed regulator for controlling the motor operation being set on the fuselage, it is described Electron speed regulator is the electron speed regulator described in claim 11.
13. a kind of non-volatile computer readable storage medium storing program for executing, which is characterized in that the computer-readable recording medium storage has Computer executable instructions make the unmanned vehicle hold when the computer executable instructions are executed by unmanned vehicle Any one of them method of row claim 1-5.
CN201810579472.5A 2018-06-07 2018-06-07 Motor control method, device, electron speed regulator and unmanned vehicle Pending CN108768236A (en)

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CN201810579472.5A CN108768236A (en) 2018-06-07 2018-06-07 Motor control method, device, electron speed regulator and unmanned vehicle
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