CN202276316U - Device for observing position of rotor in motor control - Google Patents
Device for observing position of rotor in motor control Download PDFInfo
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- CN202276316U CN202276316U CN2011203453378U CN201120345337U CN202276316U CN 202276316 U CN202276316 U CN 202276316U CN 2011203453378 U CN2011203453378 U CN 2011203453378U CN 201120345337 U CN201120345337 U CN 201120345337U CN 202276316 U CN202276316 U CN 202276316U
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Abstract
The utility model relates to a device for observing the position of a rotor in motor control. The device comprises a Hall position sensor and a detection circuit, wherein a Hall disc is composed of three Hall elements placed at 120 degree; three signals output by the Hall disc formed by the three Hall elements respectively input three optical couplers; after optical coupler isolation, the three signals are input into an I/O (Input/Output) terminal of an MCU (Microprogrammed Control Unit), and data process is performed for the signals; the motor accurately traces the position angle of the rotor to prevent the rotor angle from running over during vector control operation, and self-detection is achieved when the motor is in inversion; and when a certain sensor is in failure, the system can judge the failure point, and carries out self-adaptation to achieve the function of normal operation. Dependence on a hardware circuit of the observing device provided by the utility model is lowered, the observation and real-time trace to the position angle of the rotor can be achieved; the function of failure judgment can be applied in motor protection and used for avoiding loss caused by motor stalling or running away, and has great utility value in fields of electric automobiles and precision machine tools. The device provided by the utility model is reliable in operation, low in cost and wide in application range.
Description
Technical field
The utility model relates to the observation device of a kind of Electric Machine Control rotor position, particularly has the method and the device of rotor position detection and angle calculation, specifically is a kind of method and apparatus that in vector control, rotor angle information is carried out accurate surveying.The utility model can improve the runnability of motor, and has added the computational methods of rotor acceleration, has improved the motor response speed, and to simplifying the vector control control program, it is significant to reduce hardware cost.
Background technology
Along with the paces of technology innovation are accelerated gradually; People are also increasingly high to the Electric Machine Control performance demands; Traditional Electric Machine Control mode can not satisfy people's production, living needs gradually, and vector control technology has become the one preferred technique of Electric Machine Control because of its better controlling performance.
In the implementation procedure of vector control technology; The factor of most critical is accurate measurement and the calculating to rotor position angle; Though traditional approach can reach reasonable position measurement effect through photoelectric encoder or resolver; But it is too high but to exist cost, and the shortcoming that the program expense is excessive has proposed higher requirement to control chip performance and system cost.
The factor that influences the vector control performance mainly contains the definite of initial angle, angular speed calculation, reasons such as acceleration and deceleration fluctuation.By vector control D-Q decoupling zero formula:
Can know that excitation component and torque component and rotor position angle have substantial connection.Not only can cause motor to rotate rough problem if deviation in the observation process of rotor position angle, occurs, when serious even can cause system crash, may cause very big loss.So observing rotor position angle how effectively, accurately is a vital link in the vector control.The at present employing with hardware sensor carried out rotor-position observation more, like Hall element, and photoelectric encoder; Resolver etc., wherein the Hall element low price is used the widest; But its accuracy of observation is not enough when directly being applied in vector control, can not satisfy the requirement to the motor flatness.
Summary of the invention
The purpose of the utility model is to provide the observation device of a kind of Electric Machine Control rotor position, and it can be observed the original position of electric motor's rotator angle; Carry out on-line identification through software, eliminate the angular error that causes because of Hall element setting angle inaccuracy; A kind of real-time speed trace routine is provided, eliminates the angle accumulated error that causes because of the angular velocity omega inaccuracy; When motor accurate tracking rotor position angle in the vector control running, prevent that rotor angle from overflowing, realize the counter-rotating detection certainly on opportunity; When certain transducer broke down, system can oneself judge the fault point, and carried out self adaptation and reach the function that still can normally move.And in electric motor starting and the notion of introducing acceleration in service, to improving startability, it is obvious to accelerate the response speed effect.The utility model can reduce the dependence to hardware circuit, is that a kind of software spending is little, follows the high software and hardware system of precision; This system can realize the observation of rotor position angle and real-time tracking; The function of its fault judgement can be used to protect motor, prevents motor rotation blockage or run to fly to cause damage; Especially as far as electric automobile, precision machine tool, have great practical value.The utility model is reliable, cost is low, widely applicable.
The device of the Electric Machine Control rotor-position observation that the utility model provides comprises: hall position sensor and testing circuit; Hall disc is made up of three Hall elements; Hall element adopts 120 ° of placements, and three signals of the Hall disc output of formation are imported three optocouplers respectively; The I/O port of input MCU carries out data processing after light-coupled isolation.The Electric Machine Control rotor position detection that the utility model provides and the device of control method comprise hardware components and software section:
Hardware components: mainly form, act as and obtain rotor position information by hall position sensor and signal deteching circuit.Hall position sensor is made up of three Hall elements; Hall element adopts 120 ° of placements, and the hall position sensor that constitutes thus can be exported three 0/1 signals, and these three signals are imported three 6N137 type optocouplers respectively; After light-coupled isolation, obtain stable position signalling; And the I/O port of input MCU, carrying out data processing by MCU, the table of comparisons 1 obtains rotor position information.
Software section: mainly by initial angle observation control program; Prevent that angle from overflowing program; The rotating program; Fault detection program; Guarantee the normal working procedure five parts composition of motor under the malfunction.The concrete implementation method of each several part is:
Initial angle observation program: this program is through analyzing the position data that hardware observation part collects; The table of comparisons 1 obtains the corresponding actual angle of rotor; And write down the corresponding angle value of each phase Hall state; Obtain angular velocity omega and rotor position angle θ through every phase Hall state duration and shared electrical degree, ω that obtains and θ are applied to the vector control program.
Prevent that angle from overflowing program: obtain ω by a last program, can calculate rotor position angle θ in real time, and judge whether θ overflows, and no longer θ is carried out plus and minus calculation if θ overflows then, after receiving a rotor framing signal, carry out computing again to θ; If θ does not overflow, then θ is carried out normal operation.
The rotating program: when MCU did not receive reverse signal, normal operation was carried out in output to PWM, then at first stopped pwm signal output when receiving reverse signal, and the every phase Hall of real time record state duration; When the Hall state duration does not reach specific length, then continue to block PWM output, when the Hall state duration reaches specific length, then allow PWM output, and get into the counter-rotating running status.
Fault detection program: after program initialization, at first detect the Hall state and whether meet normal condition, do not meet normal condition and then get into failure operation, meet and then get into next energising combination; When motor gets into normal the operation; To monitor the Hall state in real time; Hall occurs in time cutting the malfunction operation when reading repeats, and judges whether the Hall state meets the theoretical reading of rotating in proper order, does not meet to explain that then the Hall fault reports to the police; Meet and then write down 6 Hall states and shared time, calculate the Hall angle.
Guarantee the normal working procedure of motor under the malfunction: breaking down when at first judging initial launch during the Hall fault still is the emerged in operation fault; Export the method starter motor of pulse if break down when being initial launch then to adopt regularly, if be to occur mistake in the running then to utilize inertia to carry out the detection of Hall reading; Judge rotating subsequently, the Hall reading of record in the one-period, make it with normal condition under the Hall reading compare, filter out correct status; Method rather than each Hall state computation method once of a mean value of an electric computation of Period adopted in the calculating of angular velocity omega, and the rotor location is the method for each electricity cycle location six times of each electricity cycle location method rather than normal condition once then.So still can obtain rotor velocity ω and rotor angle.
The observation of a kind of Electric Machine Control rotor position that the utility model provides and the step that control method comprises:
1) adopt hall position sensor to detect original position of electric motor's rotator, hall position sensor has the high-low level two states according to rotor present position difference, utilizes three Hall elements just can obtain six corresponding states of rotor.The output state of hall position sensor is through the one-level light-coupled isolation, and filtering noise imports correct state into MCU, can detect the initial position of rotor, for calculating the motor rotor position angle behind next step electric motor starting initial angle is provided.
The state that described rotor is corresponding is a position corresponding relation of confirming rotor and Hall element through the mode of phase shifting control; After promptly six states are all confirmed motor is still in a certain "on" position; Regulate Hall disc according to pairing Hall reading; Make rotor-position be positioned at the centre position of the electrical degree of Hall reading representative, control the rotating of motor like this and just can decide.
2) duration of real-time each Hall state of monitoring and then the shared actual electrical angle of decision Hall in the electric motor starting process have had this angle value, just can accurately locate rotor when getting into the vector operation; Both can judge the spinner velocity of this moment through each Hall state duration and the shared electrical degree of this phase Hall state; And then can calculate two rotor position between the Hall state; Because whenever all can calculate to velocity information through a phase Hall state; Real-time improves greatly, and rotor angle is judged more accurate.
When 3) the motor vector control is moved,, might cause rotor angle to overflow because can there be the interference of delay and other factors.Need this moment to add the rotor angle determining program,, in time rotor angle is clamped down in current Hall phase maximum, prevent that the leading amount of rotor angle is excessive when rotor angle reaches the current Hall phase limit., next phase rotor framing signal changes the normal procedure operation when arriving again over to.
When motor reverses, add and detect the counter-rotating control algolithm on opportunity.Be each phase Hall state duration of real-time judge, up to there being a phase Hall state duration to reach required value, change program over to the counter-rotating operation this moment again.
4) when motor Hall fault, the Hall state through the fault Hall can extract still correct rotor-position, and then can guarantee that through the reprogramming operational mode motor continues normal operation.
The utility model provides a kind of device of Electric Machine Control rotor position detection, and it can be observed the original position of electric motor's rotator angle.The utility model can reduce the dependence to hardware circuit, is that a kind of software spending is little, follows the high software and hardware system of precision; This system can realize the observation of rotor position angle and real-time tracking; The function of its fault judgement can be used to protect motor, prevents motor rotation blockage or run to fly to cause damage; Especially as far as electric automobile, precision machine tool, have great practical value.The utility model is reliable, cost is low, widely applicable.
Below in conjunction with accompanying drawing the utility model is further specified.
Description of drawings
The installation diagram of Fig. 1 Hall element.
Fig. 2 Hall element output waveform constitutional diagram.
Fig. 3 .1 has rotor-position observer electric machine controller.
Fig. 3 .2 is the rotor-position observer independently.
Fig. 4 Hall element waveform detection circuit.
Fig. 5 brshless DC motor electric current and induced electromotive force waveform.
Fig. 6 .1,6.2 is respectively exemplary waveforms figure after the Hall fault.
Fig. 7 angular observation control flow chart.
Prevent in Fig. 8 .1 vector control that angle from overflowing flow chart.
Fig. 8 .2 vector control rotating flow chart.
Fig. 9 .1 fault detect flow chart.
Guarantee the normal operational flow diagram of motor under Fig. 9 .2 malfunction.
Embodiment
A kind of Electric Machine Control rotor position detection hardware components that the utility model provides is mainly hall position sensor and testing circuit; Aforesaid rotor-position observer has two kinds of ways of realization; The one, be embedded in the electric machine controller; Become the electric machine controller that has the rotor-position observer, the rotor-position observer uses the MCU of electric machine controller; The 2nd, rotor-position observer independently, independently the MCU of rotor-position observer is controlled by the MCU of electric machine controller.
The step that a kind of Electric Machine Control rotor position detection that the utility model provides and control method mainly comprise:
Original position of electric motor's rotator detects;
The rotor-position and the rate algorithm that receive the Hall disc signal and signal is handled;
Utilize rotor-position and velocity information to carry out the vector control of vector control;
When breaking down, Hall causes exporting signal both safe handlings under Hall malfunction when undesired.
1) original position of electric motor's rotator detects; Be used for realizing of the detection of Electric Machine Control start-up course to the rotor initial angle; And the collection of pressing Hall state corresponding angle information in the vector control; Confirm the position corresponding relation of rotor and Hall element through the mode of phase shifting control, can confirm motor positive and inverse program information needed.This module adopts hall position sensor to detect original position of electric motor's rotator, and hall position sensor has the high-low level two states according to rotor present position difference, utilizes three Hall elements just can obtain six corresponding states of rotor.The output state of hall position sensor is through the one-level light-coupled isolation, and filtering noise imports correct state into MCU, can detect the initial position of rotor, for calculating the motor rotor position angle behind next step electric motor starting initial angle is provided.
2) algorithm of rotor exact position and speed; Setting angle according to Hall element is different, and the Hall element output state also can be different, but in each electricity cycle; The capital produces six different Hall states; Each Hall state respectively accounts for 60 ° in theory, but owing to the installation reason of Hall element and influenced by the manufacture craft of magnet steel, actual angle can produce asymmetric.Need carry out this moment each angle is carried out on-line identification, and carry out the accurate Calculation of angular velocity omega through the shared electrical degree of each Hall state.So that realize the real-time tracking of vector control rotor angle; For the position transducer angle of using low precision is carried out accurate surveying; Designed a kind of real-time angular observation program, made the position transducer that hangs down precision also can realize the accurate requirement of vector control angle.At first confirm the shared actual electrical angle of each Hall state, confirm the physical location of electric cycle six anchor points; Calculate each Hall state institute's duration then in real time, calculate the rotor real-time speed, and through the accurate angle θ of this information calculations rotor, required precision can be formulated as required with this; Be applied to the vector control system of permagnetic synchronous motor at last;
3) vector control; Proposed directly to utilize the method for vector control starter motor and estimated acceleration to improve the method for rotor in this module to the command value response speed; The accurate rotor-position that above-mentioned two steps capable of using obtain when motor stabilizing moves can apply to tracking results in the vector control of motor.Each electricity can carry out the rotor-positions location cycle six times when being used for vector control, improving the rotor-position precision, and in this module, adds and prevents the program that rotor position angle overflows, and during motor positive and inverse, the self-checking function on motor counter-rotating opportunity;
4) safe handling under the Hall malfunction; With electric machine controller the supporting general life-span of Hall element be less than motor; In case Hall element fault; Will be very big to the motor influence, in order to guarantee the safe operation of motor as far as possible, designed a kind of detection method of judging the Hall element fault.Be used for when Hall element breaks down situation, guaranteeing that motor can normally move; Through in real time the Hall element state being detected; Guarantee to find at any time whether fault of Hall, the assurance motor normally moves to find can to nonserviceable down according to the fault detect flow chart after the fault.
It is following to describe the utility model in detail in conjunction with accompanying drawing:
As shown in Figure 1; The utility model is a kind of through Hall element detection rotor position; And the combined digital signal processor is handled the signal that collects; Obtain the device of rotor precise position information, call rotor position detector in the following text, can be implemented in the vector control field rotor is carried out in real time accurate position detection.
1) original position of electric motor's rotator checkout gear; Shown in the setting angle of Fig. 1 Hall element; Adopt Hall element or other electronic devices and components that can detect original position of electric motor's rotator that motor rotor position is carried out initial examination and measurement; In conjunction with circuit shown in Figure 4, can detect the initial position of rotor, for calculating the motor rotor position angle behind next step electric motor starting initial angle is provided.
2) observation, the computational methods of rotor running rotor position; Shown in Fig. 2 (60 ° of installations of Hall element and 120 ° of installations) Hall element output state figure; In each electricity cycle, produce six different Hall states, each Hall state respectively accounts for 60 ° in theory; But owing to the installation reason of Hall element and influenced by the manufacture craft of magnet steel, actual angle can produce asymmetric.Need carry out this moment each angle is carried out on-line identification, and carry out the accurate Calculation of angular velocity omega through the shared electrical degree of each Hall state.
3) application in the vector control adopts said method can realize the tracking to rotor-position accurately, can tracking results be applied in the vector control of motor.But when being applied in the vector control, the problem that possibly overflow rotor angle will solve, and after will realizing that in motor operation course the rotating instruction is given, counter-rotating is carried out from detecting opportunity.
4) Hall element phase-deficient operation self-correction, electrical machinery life generally all have decades, and electric machine controller the supporting general life-span of Hall element be less than motor.In case and the Hall element fault, will be very big to motor influence, in order to guarantee the safe operation of motor as far as possible, designed a kind of detection method of judging the Hall element fault.Through the Hall status detection is judged that phase Hall breaks down, program changes over to specially and turns round to the state after the Hall fault then.
The rotor-position observation procedure of the utility model has two kinds of forms: a kind of is to be embedded in the electric machine controller, becomes to have rotor-position observer electric machine controller, shown in Fig. 3 .1; Another kind is a rotor-position observer independently, shown in Fig. 3 .2.
The step that the implementation method of the device of the Electric Machine Control rotor position detection that the utility model provides comprises:
With the Hall setting angle is 120 °, and permagnetic synchronous motor number of pole-pairs 3 is an example, and the function realization situation of rotor-position observer is described below:
One, the location and installation of Hall disc
At first hall position sensor is carried out state-detection; Testing circuit is seen Fig. 4, and Hall disc is made up of three Hall elements, because the employing of this example is 3 pairs of pole permanent-magnet synchronous machines; Hall element adopts 120 ° of placements simultaneously; At this moment import three optocouplers respectively by three signals of Hall disc output, the I/O port of input MCU carries out data processing after light-coupled isolation.With this hall signal is discerned, can be known by Fig. 3, the reading of six states is respectively 5,4,6,2,3,1.
Subsequently Hall disc is positioned, can be known by Fig. 2, the Hall disc of 120 ° of setting angles has six effective statuses to be 5,4,6,2,3,1; According to this rule, at first motor is carried out phase shift energising, judge per two corresponding Hall states when switching on mutually; Example AB when energising Hall state reading is 1, and AC energising Hall state is 5, and below each is respectively BC corresponding 4 mutually; BA correspondence 6, CA correspondence 2, CB corresponding 3.Then motor AB two is switched on mutually, when motor stabilizing was motionless, the corresponding position of rotor this moment was the BC position; This moment reading be 1, guarantee stationary rotor subsequently, about the adjustment Hall disc observe the Hall output state simultaneously; The Hall reading is respectively and carried out mark at 3,5 o'clock; Obtain behind 3, the 5 corresponding positions Hall disc is adjusted to the centre of 3,5 positions, at this moment, the Hall disc adjustment finishes.
Two, confirm the corresponding relation of Hall state and rotor-position
Can be known that by Fig. 5 when logical AB phase time, the rotor stability position is the initial position of BC energising, hence one can see that, AB-BC, AC-BA, BC-CA, BA-CB, CA-AB, CB-AC.So just found the corresponding relation of Hall state with rotor-position.According to the resulting Hall state of Fig. 2, and rotor-position corresponding relation shown in Figure 5, the actual corresponding relation of Hall state and rotor-position can be obtained, and the rotating corresponding relation of machine operation under the phase shift state can be obtained, see table 1.
Table 1: the position corresponding relation of rotor and Hall element
| The stator energising number of phases | The rotor stability position | The Hall reading | The phase of should switching on when just changeing | The phase of should switching on during | |
| AB | BC | ||||
| 1 | |
|
|||
| | BA | 5 | CB 6 | |
|
| | CA | 4 | |
|
|
| BA | CB | 6 | |
|
|
| | AB | 2 | |
|
|
| | AC | 3 | |
CA 6 |
Three, the real-time monitored of motor rotor-position in service
After hall position is confirmed well; Just can carry out the collection of rotor position information; Should be that symmetrical distribution and every phase Hall state account for 60 ° of electrical degrees in theory, because the deviation of Hall setting angle and magnet steel are made the influence of precision, each all can occur deviation in various degree mutually; In order to correct the error that this has a strong impact on the rotor angle accuracy of observation as possible, a kind of computational methods of calculating the Hall shared time of state according to the Hall commutation time are automatically proposed now.At first when Hall got into a certain state, counter began counting, stopped counting when withdrawing from this state, and the preservation gate time is designated as T
1, other Hall Count of Status times, roughly the same when the intact complete electrical degree of rotor operation, all six shared times of Hall state can be preserved, and are respectively T
1, T
2, T
3, T
4, T
5, T
6Promptly can calculate each phase Hall state shared angle in an electric cycle this moment; The step number that proportion is multiplied by each electrical degree representative can obtain the step number that each phase Hall state institute angle value is represented; Know the true angle of each phase Hall state representative according to the method, so just for representing that more accurately speed omega provides possible.
The speed of rotor this moment can be obtained by formula ω=α/T, real-time angular velocity omega can be obtained divided by this used time of phase state with the angle of each phase Hall state representative.After calculating real-time speed; In order to observe rotor-position more accurately, on the change point of each Hall state, carry out rotor location, and computational speed ω again; In each electricity cycle, can carry out six times the location like this; And the location all is very accurate each time, adds the real-time of speed, and the accuracy of rotor angle can satisfy the requirement of vector control fully at this moment.The angular observation control flow chart is seen Fig. 7.
Each electricity cycle of this kind method can be carried out angle calculation six times, improves a lot on accuracy than the average speed that calculates according to perfect condition.
Four, vector control operation
In the start-up course of motor, for better guaranteeing that torque is level and smooth, proposes a kind ofly to utilize Hall element state estimation rotor-position, and estimate the method that the mode of motor initial acceleration starts.As shown in table 1; When the Hall element reading was 1, the expression rotor-position was between AC and the BC, and this moment, the definable rotor-position was at AC and BC center; Just can obtain the position angle of rotor; It is motor torque/motor quality that initial acceleration is set, and just can estimate rotor acceleration, has had rotor-position and acceleration just can directly utilize the vector control program to carry out the startup of motor., motor can change the normal procedure operation after beginning to rotate over to.
In the motor operation course,, when the rotor angle calculation, not only rotor average speed to be considered, also rotor acceleration will be considered for the better response external command.Rotor acceleration can be used formula a=v
1-v
2/ t representes.Utilize the rotor present speed to deduct last speed, the gained Δ
vCan obtain rotor acceleration divided by the last Hall state duration t of institute.The adding of rotor acceleration can improve the response speed of rotor to command value greatly.
Adopt said method can realize accurate tracking to rotor angle; But in practical application, still possibly there is degradation disturbing factor under the rotating speed, causes the rotor estimated angle to overflow; Promptly reach the angle maximum of current Hall state correspondence when the rotor estimated angle; And the rotor actual position signal if still adopt previous angle computation method, can cause the rotor estimated angle leading also during no show.Need this moment to add the rotor angle determining program,, in time rotor angle is clamped down in current Hall phase place maximum, prevent that the leading amount of rotor angle is excessive when rotor angle reaches the current Hall phase place limit., next phase rotor framing signal changes above-mentioned normal procedure operation when arriving again over to.
When motor reversed, angle detecting method was consistent with above-mentioned positive shifting method, and just the increment with angle calculation subtracts by adding to become, and needed equally to add to prevent the algorithm that angle is overflowed.When control chip is received the counter-rotating instruction; Add and detect the counter-rotating control algolithm on opportunity, i.e. each phase Hall state duration of real-time judge is up to there being a phase Hall state duration to reach set point; Change program over to the counter-rotating operation this moment again, and the influence to motor can drop to minimum like this.
Particular flow sheet is seen Fig. 8 .1, prevents in the vector control that angle from overflowing flow chart; Fig. 8 .2 vector control rotating flow chart.
Five, Hall troubleshooting
Can know by Fig. 6 .1,6.2, have two kinds of fault outputs after the Hall fault, low or high.Table 2 can know that when having a Hall to break down in three Hall elements, it is correct still having three states, so just for we guarantee the normal operation of program when Hall breaks down foundation is provided.
Table 2: the output state when Hall element breaks down
When Hall breaks down, two Hall state or non-existent Hall states that reading is the same can appear, and this moment is as long as add fault detect in normal procedure.
When motor just begins to start, if Hall break down, use the Starting mode motor of traditional commutation in twos not start or torque pulsation very big, motor is caused harmful effect.For addressing this problem, judge when electric motor starting at first whether Hall intact, if not intact start-up routine switch to regularly export commutator pulse mode with electric motor starting, promptly switch to the vector running status after reaching certain speed; Hall breaks down when motor moves; At first stop to export the PWM ripple this moment, is without prejudice with protection equipment, switches to the failure operation state then; Utilize motor inertia to detect the Hall fault point; The Hall state that judgement can be utilized, and establish the rotor-position anchor point, cut the vector running status subsequently.
Particular flow sheet is seen Fig. 9 .1, the fault detect flow chart; Guarantee the normal operational flow diagram of motor under Fig. 9 .2 malfunction.
Claims (4)
1. the observation device of an Electric Machine Control rotor position; It is characterized in that comprising: hall position sensor and testing circuit, Hall disc is made up of three Hall elements, and Hall element adopts 120 ° of placements; Three signals of the Hall disc output that constitutes; Import three optocouplers respectively, the I/O port of input MCU carries out data processing after light-coupled isolation.
2. device according to claim 1 is characterized in that described rotor-position observer has two kinds of forms: is embedded in the electric machine controller, becomes the electric machine controller that has the rotor-position observer, or rotor-position observer independently.
3. device according to claim 2 is characterized in that the MCU of described independently rotor-position observer is controlled by the MCU of electric machine controller.
4. device according to claim 2 is characterized in that the rotor-position observer uses the MCU of electric machine controller in the described electric machine controller that has a rotor-position observer.
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| CN2011203453378U CN202276316U (en) | 2011-09-15 | 2011-09-15 | Device for observing position of rotor in motor control |
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|---|---|---|---|
| CN2011203453378U CN202276316U (en) | 2011-09-15 | 2011-09-15 | Device for observing position of rotor in motor control |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347726A (en) * | 2011-09-15 | 2012-02-08 | 河北工业大学 | Device and method for observing rotor position in motor control |
| CN108535646A (en) * | 2017-03-02 | 2018-09-14 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking device and its motor self checking method and device |
| CN109510408A (en) * | 2018-12-12 | 2019-03-22 | 广东保威新能源有限公司 | Solar energy tracking control system and control method based on Hall sensor |
| CN113794414A (en) * | 2021-09-01 | 2021-12-14 | 深圳市圳远电气有限公司 | Permanent magnet synchronous motor Hall signal online correction method |
| CN116653609A (en) * | 2023-08-01 | 2023-08-29 | 深圳市好盈科技股份有限公司 | Control method and device for target two-wheel vehicle based on Hall protection strategy |
-
2011
- 2011-09-15 CN CN2011203453378U patent/CN202276316U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347726A (en) * | 2011-09-15 | 2012-02-08 | 河北工业大学 | Device and method for observing rotor position in motor control |
| CN108535646A (en) * | 2017-03-02 | 2018-09-14 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking device and its motor self checking method and device |
| CN109510408A (en) * | 2018-12-12 | 2019-03-22 | 广东保威新能源有限公司 | Solar energy tracking control system and control method based on Hall sensor |
| CN113794414A (en) * | 2021-09-01 | 2021-12-14 | 深圳市圳远电气有限公司 | Permanent magnet synchronous motor Hall signal online correction method |
| CN116653609A (en) * | 2023-08-01 | 2023-08-29 | 深圳市好盈科技股份有限公司 | Control method and device for target two-wheel vehicle based on Hall protection strategy |
| CN116653609B (en) * | 2023-08-01 | 2023-10-24 | 深圳市好盈科技股份有限公司 | Control method and device for target two-wheel vehicle based on Hall protection strategy |
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