CN204465394U - A kind of controller driving double winding brshless DC motor - Google Patents
A kind of controller driving double winding brshless DC motor Download PDFInfo
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- CN204465394U CN204465394U CN201420674828.0U CN201420674828U CN204465394U CN 204465394 U CN204465394 U CN 204465394U CN 201420674828 U CN201420674828 U CN 201420674828U CN 204465394 U CN204465394 U CN 204465394U
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Abstract
The utility model discloses a kind of controller driving double winding brshless DC motor, hardware comprises connector, PCB, PWM driver module (A and B two overlaps), relay driving module (A and B two overlaps), power field effect pipe (A and B two overlaps), current detection module (A and B two overlaps), microprocessor (MCU), power module.MCU runs corresponding control software design.Connector is used for connecting the hall signal of motor, power supply signal and phase line etc.; PCB carries all electronic devices; MCU gathers hall signal, produces and controls pwm signal; The low-voltage pwm signal that MCU produces by PWM driver module is converted to can the high voltage signal of Direct driver power field effect pipe; Current detection module is used for detecting real-time current, if electric current exceedes the scope of permission, export brake signal, protection system is not burnt; Power module is used for the power supply into the circuit with stable of various piece.Wherein, PWM driver module, relay driving module, power field effect pipe, current detection module is all duplexed system, coordinates the brshless DC motor hardware driving and have two cover windings.The feature such as the dual system that has the utility model backs up mutually, dual system collaborative work, load balancing, reliability are strong.
Description
Technical field
The utility model relates to electronic applications, and more particularly, the utility model relates to and is applied to a kind of controller driving double winding brshless DC motor.
Background technology
Brshless DC motor (BLDC, Brushless DC Motor) have many good qualities than the direct current machine of conventional belt brush, so applied more and more extensive in the last few years, but for this permanent magnet DC motor, power does and is not easy very much greatly, because the principle of motor, architectural characteristic determine on the one hand, on the other hand, power also can improve the requirement of controller greatly, especially very high to the current requirements of power tube.Meanwhile, power becomes greatly, and controller is also faced with the acid tests such as heating, overload.
In order to solve problem above, a kind of multiwinding machine is devised, overall power can be distributed to multiple winding to get on, reduce the power of each winding, also reduce the power requirement of the drive circuit to each winding simultaneously, when not increasing the power of single controller, the driving force of the motor that is multiplied.This novel brshless DC motor has many good qualities, and mainly comprises: 1) load balancing, reduces design difficulty and the production cost of controller; 2) winding backs up mutually, improves the reliability of system, prevention Single Point of Faliure.
The utility model is exactly the controller designed for this type of multiwinding machine, and specific implementation is carried out according to double winding, but be not limited to double winding, can expand to more Multiple coil according to same principle.
Summary of the invention
Main purpose of the present utility model realizes a kind of controller that can drive doublewound brshless DC motor, has two cover drive circuits, and drive two cover coils of double-winding motor respectively, two cover drive circuits synchronously drive, each burden half driving power.Any a set of drive circuit all comprises signal generation module, level switch module, power driver module, motor rotor position testing circuit and current-limiting protection module.The drive singal of two cover drive circuits is all PWM pulse-width signal, and is synchronous, and synchronous concept is: the cycle of all pwm signals is all identical, and the counting initial time of PWM is identical, starts simultaneously, closes simultaneously.The pwm signal of drive circuit is all SPWM, i.e. three phase sine pulse-width signal.Microprocessor can produce 2 cover SPWM signals simultaneously.The rotor position detection circuit of motor, can pass through linear hall-effect device, also can pass through photoelectric encoder.Two cover power driver modules all have respective current foldback circuit, when electric current exceedes maximum, force the output stopping drive circuit, reach the object of protective circuit and motor by hardware.Often overlap power driver module and all there is a relay, during relay power, the drive coil composition Y-connection of motor; During relay power-off, the three-phase drive coil of motor disconnects, independent separately.MCU can control output signal, select any one drive circuit work independently drive motors rotate, also can select two cover drive circuit collaborative work drive motors rotate.
A set of winding of two passages difference drive motors of controller, realize double-winding synchronous and drive, a half-power respectively born by each controller; Meanwhile, two passages work simultaneously, back up mutually, if there is one of them controller to burn, another control can work on and keep motor to rotate, and prevents the hang-up of motor, and maximum possible prevents because the fault of motor stalling generation.
In order to realize above object, the utility model provides a kind of controller driving double winding brshless DC motor, and hardware comprises connector, PCB, PWM driver module, relay driving module, power module, power field effect pipe, microprocessor (MCU).MCU runs corresponding control software design.
Described connector comprises: power input socket, motor hall device plug (u, v, w, 2 covers), motor phase line plug (U, V, W, 2 covers), speed regulator potentiometer socket.
Described PCB carries all electronic devices, connector and parts.
Described PWM driver module is a kind of level shifting circuit, and being converted to by the Transistor-Transistor Logic level pwm signal that MCU exports can the signal of driving power field effect transistor, and this circuit can use discrete device to realize, and application-specific integrated circuit also can be adopted to realize.
Described relay driving module drives two relays, during each relay power, and the drive coil composition Y-connection of corresponding motor; During relay power-off, the three-phase drive coil of motor disconnects, independent separately, this design can to ensure at two cover controllers one of them break down short circuit time, can not load be become.
The high voltage that described power module is used to battery inputs is converted to low-voltage DC, and for MCU and other low-voltage device are powered, the voltage of input is generally 24V, 36V, 48V or 72V, and output voltage is generally 3.3V, 5V, 12V.
Described power field effect pipe is generally N-channel MOS FET.
Described microprocessor is generally the flush bonding processor such as single-chip microcomputer or ARM, and these processors generally all have special PWM generation module, or special overcurrent protection hardware.
The utility model has the advantage of:
1) two cover drive circuits, drive two cover coils of double-winding motor respectively, two cover drive circuits synchronously drive, each burden half driving power;
2) two cover controllers any one be out of order, another set of controller maintenance work can be leaned on, improve the reliability of whole system;
3) often overlap circuit and all there is a relay, during relay power, the drive coil composition Y-connection of motor; During relay power-off, the three-phase drive coil of motor disconnects.
Accompanying drawing explanation
Fig. 1 is a kind of simple designs of prior art.
Fig. 2 is design of the present utility model.
Fig. 3 is the design of PWM driver module of the present utility model.
Fig. 4 is that the one of relay driving module of the present utility model realizes.
Fig. 5 is that the one of power module of the present utility model realizes.
Fig. 6 is that the one of the utility model current detection circuit realizes.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
As shown in Figure 2, the motor that the utility model drives is double-winding motor, namely on the stator core of same motor simultaneously around on two covers independently winding, i.e. winding 11 (MA) and winding 10 (MB) mutually.Double winding forms Y-connection by relay J A and relay J B conducting respectively, and when relay does not power on, the three-phase coil of MA and MB disconnects, and namely do not form Y-connection; During relay adhesive, MA and MB forms Y-connection respectively.
Hall device H1-H6 as rotor-position sensor exports corresponding numeral or analog signal, provides foundation for calculating rotor-position.Wherein H1-H3 provides signal for winding MA, and H4-H6 provides signal for winding MB, ensures maximum redundancy and backup, avoids Single Point of Faliure on the impact of total system.
The signal that hall device H1-H3 exports is respectively: uA, vA, wA, three road signals are input to Hall interface A and module 1, and the signal that hall device H4-H6 exports is respectively: uB, vB, wB, three road signals are input to Hall interface B and module 6,1 and 6 pairs of hall signals repair rear input microprocessor MCU and module 5 calculates, and obtain the positional information of rotor.
Relay driving module JA and module 2 and JB and module 9, the coil for relay provides driving voltage and electric current, when machine operation, by 11 and 10 composition Y-connections, ensures that motor normally works.When circuit occurs abnormal, such as power tube burns or in motor damage situation, relay disconnects, and ensures that out of order winding can not affect the running of total system.
The rotor-position of the hall device calculated signals brushless electric machine that the Micro-processor MCV of system and module 5 input according to H1-H6, and then calculate the value of drive singal according to rotor-position, according to the value of drive singal calculate U, V, W tri-road pwm signal size and export to PWM driver module and module 3 and module 7.3 and 7 output signal to respective motor driver output module again, i.e. module 4 and 6,4 output drive signal UA, and VA, WA give 11, drive first set winding; 6 output drive signal UB, VB, WB give 10, and drive the second cover winding, signal is synchronous mutually, ensures double winding collaborative work.
Current detection module 12 detects the electric current of first set winding MA, if electric current exceedes default maximum, then enters guard mode, stops pwm signal, simultaneously slew relay JA, three coils of release MA.Current detection module 13 detects the electric current of the second cover winding MB, if electric current exceedes default maximum, then enters guard mode, stops pwm signal, simultaneously slew relay JB, three coils of release MB.
The one of PWM drive circuit realizes as shown in Figure 3.PWMIN and PWMIN_N is respectively pwm signal anode and negative terminal input signal, and wherein U103 is PWM level shifting circuit, and being converted to by the low-voltage TTL signal of input can the high level circuit of driving power field effect transistor.Wherein, Q105 and Q106 is N channel power field effect transistor, and R101 is current sampling resistor, and JOUT is this phase out splice going splice, is used for connecing the phase terminal of motor.
The one of relay driving module realizes as shown in Figure 4.COIL_ON is the input of relay switch signal, through the grid of R107 and R108 dividing potential drop rear drive field effect transistor Q107.JCOIL is the drive coil of relay, and D105 is fly-wheel diode.When relay opened by needs, COIL_ON input is high, Q107 conducting, VCC12V power drives relay coil COIL adhesive, and relay switch closes, and the three-phase coil composition Y-connection of motor, can work.When COIL_ON input is low, Q107 ends, and COIL loses drive current, cut-off, and motor coil exits Y-connection.
The power module 14 of controller provides galvanic current source for all parts.Fig. 5 is a kind of specific implementation of power circuit, and VMOTOR is power supply input, and after L303 filtering, be input to U303, U303 model is LM2575, is a DC/DC conversion electric power chip.Input range is 12-40V, and power supply exports 12V by 4 pin, for other of controller needs the energize portions of 12V.U305 is LDO, i.e. Serial regulation power supply, exports VCC3V, for whole circuit provides 3V Power supply.
A kind of specific implementation of current detection module 12 and 13 as Fig. 6 so.CURRENT_DET is the dividing potential drop output signal of current sampling resistor, the reflection of its voltage be size of current by sampling resistor R101.The number of converting to is amplified by 3 pin of input operational amplifier U109A after R104 and R109 dividing potential drop.Again by being input to 6 pin of operational amplifier U109B after the filtering of R133 and C140; compare with the normal voltage of input 5 pin, when 6 pin level are higher than 5 pin, U109B exports and becomes low level from high level; the brake signal exporting a BKIN, to MCU, is used for realizing instantaneous stop.Normal voltage is obtained by R132 and R113 dividing potential drop, can be adjusted the size of current limliting by the resistance size adjusting R132 and R113.
Claims (10)
1. drive a controller for double winding brshless DC motor, hardware components comprises PCB, connector, power module, Micro-processor MCV, two cover drive circuits; Wherein, PCB is the load bearing component of all other parts, that is: connector, driver module, power module and power field effect pipe and microprocessor are all welded in PCB; Connector is used for connecting battery, motor to circuit board; MCU produces drive singal, and outputs to two cover drive circuits; Two cover drive circuits connect motor by connector; Power module provides stable power supply for circuit various piece.
2. a kind of controller driving double winding brshless DC motor according to claim 1, is characterized in that having two cover drive circuits, and drive two cover coils of double-winding motor respectively, two cover drive circuits synchronously drive, each burden half driving power.
3. a kind of controller driving double winding brshless DC motor according to claim 1, is characterized in that any a set of drive circuit all comprises signal generation module, level switch module, power driver module, motor rotor position testing circuit and current-limiting protection module.
4. a kind of controller driving double winding brshless DC motor according to claim 1, it is characterized in that the drive singal of two cover drive circuits is all PWM pulse-width signal, and be synchronous, synchronous concept is: the cycle of all pwm signals is all identical, and the counting initial time of PWM is identical, starts simultaneously, close simultaneously.
5. a kind of controller driving double winding brshless DC motor according to claim 4, is characterized in that the drive singal of above-mentioned drive circuit is all SPWM, i.e. three phase sine pulse-width signal.
6. a kind of controller driving double winding brshless DC motor according to claim 1, is characterized in that above-mentioned microprocessor can produce 2 cover SPWM signals simultaneously.
7. a kind of controller driving double winding brshless DC motor according to claim 3, is characterized in that the rotor position detection circuit of motor, can pass through linear hall-effect device, also can pass through photoelectric encoder.
8. a kind of controller driving double winding brshless DC motor according to claim 3; it is characterized in that two cover power driver modules all have respective current foldback circuit; when electric current exceedes maximum; force by hardware the output stopping drive circuit, reach the object of protective circuit and motor.
9. a kind of controller driving double winding brshless DC motor according to claim 3, is characterized in that often overlapping power driver module all has a relay, during relay power, and the drive coil composition Y-connection of motor; During relay power-off, the three-phase drive coil of motor disconnects, independent separately.
10. a kind of controller driving double winding brshless DC motor according to claim 1, it is characterized in that MCU can control output signal, select any one drive circuit work independently drive motors rotate, also can select two cover drive circuit collaborative work drive motors rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674828.0U CN204465394U (en) | 2014-11-13 | 2014-11-13 | A kind of controller driving double winding brshless DC motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420674828.0U CN204465394U (en) | 2014-11-13 | 2014-11-13 | A kind of controller driving double winding brshless DC motor |
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| CN204465394U true CN204465394U (en) | 2015-07-08 |
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| CN201420674828.0U Expired - Fee Related CN204465394U (en) | 2014-11-13 | 2014-11-13 | A kind of controller driving double winding brshless DC motor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647687A (en) * | 2016-09-07 | 2017-05-10 | 西北工业大学 | Simulation loading test method for brushless permanent magnet motor driving controller |
| CN106864584A (en) * | 2017-01-15 | 2017-06-20 | 浙江航驱汽车科技有限公司 | A kind of EPS controllers brushless electric machine phase line isolation circuit and control method |
| CN107415750A (en) * | 2017-08-10 | 2017-12-01 | 杭州衡源汽车科技有限公司 | A kind of charging system and electric automobile |
| CN107415747A (en) * | 2017-08-10 | 2017-12-01 | 杭州衡源汽车科技有限公司 | A kind of power-driven system and electric automobile |
| CN107444159A (en) * | 2017-08-10 | 2017-12-08 | 杭州衡源汽车科技有限公司 | A kind of progress control method, device and electric automobile |
| CN107458268A (en) * | 2017-08-10 | 2017-12-12 | 杭州衡源汽车科技有限公司 | A kind of bending moment control method, device and electric automobile |
| CN107472063A (en) * | 2017-08-10 | 2017-12-15 | 杭州衡源汽车科技有限公司 | A kind of battery failures inspection system and electric automobile |
| CN109379009A (en) * | 2018-11-26 | 2019-02-22 | 清华大学 | The PWM control system and method for double BLDC motor four quadrant runnings |
| CN109804552A (en) * | 2016-10-13 | 2019-05-24 | 三菱电机株式会社 | Motor drive, electric motor system and refrigerating circulatory device |
| CN109861592A (en) * | 2019-04-18 | 2019-06-07 | 东营市宇彤机电设备有限责任公司 | A kind of high temperature brushless dc machine actuating device |
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2014
- 2014-11-13 CN CN201420674828.0U patent/CN204465394U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647687A (en) * | 2016-09-07 | 2017-05-10 | 西北工业大学 | Simulation loading test method for brushless permanent magnet motor driving controller |
| CN109804552A (en) * | 2016-10-13 | 2019-05-24 | 三菱电机株式会社 | Motor drive, electric motor system and refrigerating circulatory device |
| CN106864584A (en) * | 2017-01-15 | 2017-06-20 | 浙江航驱汽车科技有限公司 | A kind of EPS controllers brushless electric machine phase line isolation circuit and control method |
| CN106864584B (en) * | 2017-01-15 | 2018-09-28 | 浙江航驱汽车科技有限公司 | A kind of EPS controllers brushless motor phase line isolation circuit and control method |
| CN107415750A (en) * | 2017-08-10 | 2017-12-01 | 杭州衡源汽车科技有限公司 | A kind of charging system and electric automobile |
| CN107415747A (en) * | 2017-08-10 | 2017-12-01 | 杭州衡源汽车科技有限公司 | A kind of power-driven system and electric automobile |
| CN107444159A (en) * | 2017-08-10 | 2017-12-08 | 杭州衡源汽车科技有限公司 | A kind of progress control method, device and electric automobile |
| CN107458268A (en) * | 2017-08-10 | 2017-12-12 | 杭州衡源汽车科技有限公司 | A kind of bending moment control method, device and electric automobile |
| CN107472063A (en) * | 2017-08-10 | 2017-12-15 | 杭州衡源汽车科技有限公司 | A kind of battery failures inspection system and electric automobile |
| CN107472063B (en) * | 2017-08-10 | 2019-10-18 | 杭州衡源汽车科技有限公司 | A kind of battery failures check system and electric car |
| CN109379009A (en) * | 2018-11-26 | 2019-02-22 | 清华大学 | The PWM control system and method for double BLDC motor four quadrant runnings |
| CN109861592A (en) * | 2019-04-18 | 2019-06-07 | 东营市宇彤机电设备有限责任公司 | A kind of high temperature brushless dc machine actuating device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20151113 |