CN202978791U - Brushless direct current motor driver based on Z source - Google Patents
Brushless direct current motor driver based on Z source Download PDFInfo
- Publication number
- CN202978791U CN202978791U CN2012206946259U CN201220694625U CN202978791U CN 202978791 U CN202978791 U CN 202978791U CN 2012206946259 U CN2012206946259 U CN 2012206946259U CN 201220694625 U CN201220694625 U CN 201220694625U CN 202978791 U CN202978791 U CN 202978791U
- Authority
- CN
- China
- Prior art keywords
- source
- motor
- direct current
- brushless
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a brushless direct current motor driver based on a Z source. A Z source power converting drive module is connected with a direct current input power supply and a brushless direct current motor respectively. The Z source power converting drive module is further connected with a controller and an overvoltage-overcurrent protecting module respectively. A motor Hall signal detecting module is connected with the brushless direct current motor and the controller respectively. A voltage-current detecting module is connected with the controller. A DC/DC (direct current/direct current) converter at the front end of an electric automobile storage battery is omitted to allow the whole drive system to be a primary device, so that energy conversion efficiency is improved, size and cost of the whole device are reduced, safety of active devices is improved greatly, anti-interference capability of the system is enhanced, internal space of the electric automobile is utilized efficiently, weight of the driver is reduced, a thought is provided for the development of pure electric automobiles, energy is saved, and low-carbon life is facilitated.
Description
Technical field
The utility model belongs to the technical field of DC MOTOR CONTROL, relates to the control technology of dc brushless motor, and more particularly, the utility model relates to a kind of driver for brushless DC motor based on the Z source.
Background technology
Dc brushless motor is because its high efficiency, long-life, low noise and the characteristic advantage such as rotational speed and torque preferably have been widely used in air conditioning for automobiles, wiper, electric door, air bag, automatic seat etc. and have driven.Particularly in the pure electric automobile field, the dynamical system composition as electric automobile has extremely wide development space.
But traditional brush DC driver separates booster circuit and motor-drive circuit, can not realize not only boosting, but also drive the purpose of dc brushless motor.Prior art is separated booster system and drive system, makes it become two-stage system, has reduced the operating efficiency of whole system.
The utility model content
The utility model provides a kind of driver for brushless DC motor based on the Z source, its objective is the two-stage system of traditional brush DC driver one-level System Replacement, and reduces hardware circuit, allows bridge circuit straight-through, improves Security of the system and efficient.
The technical scheme of taking to achieve these goals is:
The driver for brushless DC motor based on the Z source that the utility model provides, described driver for brushless DC motor comprise Z source power conversion driver module, electric current and voltage detection module, controller, over-voltage over-current protection module, dc brushless motor and motor hall signal detection module; Described Z source power conversion driver module is connected with direct-current input power supplying, dc brushless motor respectively; Described Z source power conversion driver module also is connected with described controller, over-voltage over-current protection module respectively; Described motor hall signal detection module is connected with controller with described dc brushless motor respectively; Described electric current and voltage detection module is connected with described controller.
Described Z source power conversion driver module is provided with Z source network and three phase full bridge; The structure of described Z source network is: the two-phase of the direct-current input power supplying inductance of respectively connecting; The two ends of two inductance intersect each electric capacity in parallel; Described three phase full bridge is made of six power switchs.
Diode of front end series connection of described Z source network, its conducting direction is identical with the sense of current of direct-current input power supplying.
In order to realize the goal of the invention identical with technique scheme, the utility model also provides above-described control method, and the main program flow of this control method is:
Main program begins;
Boost in the Z source of calling described in above step 4 and the flow process of electric motor starting subprogram is:
Enter that boost in the Z source and the electric motor starting subprogram;
Whether step 5, detection output voltage satisfy the requirement of boosting, and if so, enter step 6, if not, return to step 1;
Whether step 8, testing circuit electric current and U, V, W three-phase voltage meet the demands, and if so, enter step 9, if not, carry out over-current over-voltage protection, then enter step 10;
The flow process that Z source power conversion PWM described in above step 1 controls subprogram is:
Enter Z source power conversion PWM and control subprogram;
Whether step 1, Z source network are operated in pressure-increasning state, if so, enter step 2; If not, do not insert straight-through amount, only adopt the double-pole PWM control motor, then enter step 3;
The utility model adopts technique scheme, saved accumulator of electric car front end DC/DC converter, make whole drive system become a stage arrangement, improved energy conversion efficiency, volume and the cost of whole device have been reduced, greatly improve the fail safe of active device, strengthened the system rejection to disturbance ability; Efficiently utilize inner space of vehicle, alleviated weight; Also the development for pure electric automobile provides thinking, and energy savings is conducive to the low-carbon (LC) life.
Description of drawings
The below is briefly described the expressed content of each width accompanying drawing of this specification and the mark in figure:
Fig. 1 is system architecture diagram of the present utility model;
Fig. 2 is topology diagram of the present utility model;
Fig. 3 is power switch pipe triggering signal figure of the present utility model;
Fig. 4 is Z source circuit figure of the present utility model;
Fig. 5 .1～5.11st, power driving circuit figure of the present utility model, wherein:
Fig. 5 .1 is U4(H11L1) and circuit diagram U5(ACS704);
Fig. 5 .2 is U6, U7 and U8(ACS706) circuit diagram;
Fig. 5 .3 is U11(L6386) circuit diagram;
Fig. 5 .4 is U12(L6386) circuit diagram;
Fig. 5 .5 is U13(L6386) circuit diagram;
Fig. 5 .6 is O1(HCPL4504) circuit diagram;
Fig. 5 .7 is O2(HCPL4504) circuit diagram;
Fig. 5 .8 is O3(HCPL4504) circuit diagram;
Fig. 5 .9 is O5(HCPL4504) circuit diagram;
Fig. 5 .10 is O6(HCPL4504) circuit diagram;
Fig. 5 .11 is O7(HCPL4504) circuit diagram;
Fig. 6 .1～6.6th, power supply of the present utility model and warning circuit figure, wherein:
Fig. 6 .1 is U15(MC78L15) and circuit diagram U16(LM117-5);
Fig. 6 .2 is U10(LM393) circuit diagram;
Fig. 6 .3 is the circuit diagram of POWER OUT;
Fig. 6 .4 is U9(ACS706) circuit diagram;
Fig. 6 .5 is U18(LM117-3.3) circuit diagram;
Fig. 6 .6 is the circuit diagram of D22, D23 and D24;
Fig. 7 .1～7.4th, hall signal testing circuit figure of the present utility model, wherein:
Fig. 7 .1 is U20(74HC14) circuit diagram;
Fig. 7 .2 is the circuit diagram of D25～D30;
Fig. 7 .3 is the circuit diagram of H1～H3;
Fig. 7 .4 is J6(HALL) circuit diagram;
Fig. 8 is main program flow chart of the present utility model.
Fig. 9 is of the present utility model boosting and the electric motor starting subroutine flow chart.
Figure 10 is that Z source power conversion PWM of the present utility model controls subroutine flow chart.
Be labeled as in Fig. 1:
1, direct-current input power supplying, 2, Z source power conversion driver module, 3, the electric current and voltage detection module, 4, controller, 5, the over-voltage over-current protection module, 6, dc brushless motor, 7, motor hall signal detection module.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, embodiment of the present utility model is described in further detail, and to help those skilled in the art, inventive concept of the present utility model, technical scheme is had more complete, accurate and deep understanding.
Technical problem to be solved in the utility model is for the deficiencies in the prior art, a kind of structure of the present utility model shown in Figure 1 is provided, it is a kind of driver for brushless DC motor based on the Z source, its objective is the two-stage system of traditional brush DC driver one-level System Replacement, and minimizing hardware circuit, the permission bridge circuit is straight-through, improves Security of the system and efficient.
Realize this goal of the invention, the technical scheme that the utility model is taked is:
As shown in Figure 1, the driver for brushless DC motor based on the Z source that provides of the utility model comprises Z source power conversion driver module 2, electric current and voltage detection module 3, controller 4, over-voltage over-current protection module 5, dc brushless motor 6 and motor hall signal detection module 7; Described Z source power conversion driver module 2 is connected with direct-current input power supplying 1, dc brushless motor 6 respectively; Described Z source power conversion driver module 2 also is connected with described controller 4, over-voltage over-current protection module 5 respectively; Described motor hall signal detection module 7 is connected with controller with described dc brushless motor 6 respectively and is connected; Described electric current and voltage detection module 3 is connected with described controller 4.
The Z source power conversion driver module 2 of system, electric current and voltage detection module 3, controller 4, over-voltage over-current protection 5, motor hall signal detect 7 and are used for controlling dc brushless motor 6.
Technique scheme of the present utility model compared with prior art, saved accumulator of electric car front end DC/DC converter, make whole drive system become a stage arrangement, improved energy conversion efficiency, volume and the cost of whole device have been reduced, greatly improve the fail safe of active device, strengthened the system rejection to disturbance ability.Utilize efficiently inner space of vehicle, alleviated weight.Also the development for pure electric automobile provides thinking, and energy savings is beneficial to the low-carbon (LC) life.
Topological structure of the present utility model as shown in Figure 2.This topological structure comprises DC power supply, Z source network, three phase full bridge and dc brushless motor.Specifically, described Z source power conversion driver module 2 is provided with Z source network and three phase full bridge; The structure of described Z source network is: the two-phase of the direct-current input power supplying inductance of respectively connecting; The two ends of two inductance intersect each electric capacity in parallel; Described three phase full bridge is made of six power switchs.
Diode of front end series connection of described Z source network, its conducting direction is identical with the sense of current of direct-current input power supplying.
As depicted in figs. 1 and 2, the diode of system front end (D1) purpose is to stop electric current backflow to return direct voltage source, inductance L 1, and L2 and capacitor C 1, C2 consists of Z source network, L1=L2, C1=C2.The boost function that utilizes the Z source network to have with the output voltage of direct-current input power supplying 1, boosts to 144V via Z source power conversion driver module 2.
As shown in Figure 4, accumulator of electric car is by the direct current of POWER IN and POWER GND interface input 60V, through Z source network POWER OUT pin, output 144V direct voltage.Wherein connect Hall current sensor between P+ and P-and do the current detecting of Z source fore-end.144V direct current after process Z boosts in the source is input to power driver module.
As shown in Fig. 5 .1～5.11, wherein, six power switchs (Q1-Q6), adopt the IRF540 of PHILIPS Co., power switch pipe should be controlled the normal speed governing of dc brushless motor, coordinate with front end Z source network again, make whole system the input voltage of storage battery can be boosted to used for electric vehicle 144V.Therefore adopt the speed governing of bipolarity PWM control mode, and adopt the mode of inserting straight-through vector in bipolarity is controlled, make the Z source network realize boosting, control waveform as shown in Figure 3.
In the straight-through time, the upper and lower bridge arm short circuit, whole system was operated in and boosted and the Electric Machine Control state this moment; In the non-straight-through time, not short circuit of upper and lower bridge arm, whole system is in the electric machine speed regulation state of a control.The time length that straight-through vector inserts depends on the requirement of boosting to the Z source network, the direct current of 60V is boosted to 144V herein as calculated, and what need boosts 2.4 times.
As shown in Fig. 6 .1～6.6, power supply and warning circuit provide 3.3V for a whole level system, 5V, the power supply of 15V and give chip power supplies at different levels.
Be provided with/under-voltage protecting circuit, Guarantee control system can in time be made the protection action when unusual condition occurring.
It is the hall signal of catching motor that hall signal detects, thereby guarantees the normal commutation of motor, and circuit is as shown in Fig. 7 .1～7.4.
In order to realize the goal of the invention identical with technique scheme, the utility model also provides above-described control method: at first the method also arranges to the controller initialization boost flag bit and electric motor starting flag bit.Secondly whether the judgement symbol position arranges successfully, if success call the Z source and boost and the electric motor starting subprogram, if flag bit again would not be set successfully.At last to rotating speed with boost that if detecting meets the demands returns, if occur abnormality re invocation Z boost in the source and the electric motor starting subprogram.
The main program flow of above-mentioned control method as shown in Figure 8, in figure, the main program flow of this control method is specially:
Main program begins;
Boost in above step 4 and the electric motor starting subroutine flow chart as shown in Figure 9.At first call Z source power conversion PWM and control subprogram, then with double sampling detect respectively boost and electric machine speed regulation whether normal, if undesiredly in time make the protection action.
The described Z of calling boosts in the source specific as follows with the flow process of electric motor starting subprogram:
Enter that boost in the Z source and the electric motor starting subprogram;
Whether step 5, detection output voltage satisfy the requirement of boosting, and if so, enter step 6, if not, return to step 1;
Whether step 8, testing circuit electric current and U, V, W three-phase voltage meet the demands, and if so, enter step 9, if not, carry out over-current over-voltage protection, then enter step 10;
In above step 1, Z source power conversion PWM controls subroutine flow chart as shown in figure 10.At first judge whether system is in pressure-increasning state, if be in pressure-increasning state, insert straight-through amount and make upper and lower bridge arm straight-through in control procedure, realize boosting.If be in the Electric Machine Control state, do not insert straight-through amount, only motor is carried out speed governing and commutates controlling.
The flow process of described Z source power conversion PWM control subprogram is specific as follows:
Enter Z source power conversion PWM and control subprogram;
Whether step 1, Z source network are operated in pressure-increasning state, if so, enter step 2; If not, do not insert straight-through amount, only adopt the double-pole PWM control motor, then enter step 3;
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection range of the present utility model.
Claims (3)
1. driver for brushless DC motor based on the Z source, it is characterized in that: described driver for brushless DC motor comprises Z source power conversion driver module (2), electric current and voltage detection module (3), controller (4), over-voltage over-current protection module (5), dc brushless motor (6) and motor hall signal detection module (7); Described Z source power conversion driver module (2) is connected with direct-current input power supplying (1), dc brushless motor (6) respectively; Described Z source power conversion driver module (2) also is connected with described controller (4), over-voltage over-current protection module (5) respectively; Described motor hall signal detection module (7) is connected 4 with described dc brushless motor (6) with controller respectively) be connected; Described electric current and voltage detection module (3) is connected with described controller (4).
2. according to the driver for brushless DC motor based on the Z source claimed in claim 1, it is characterized in that: described Z source power conversion driver module (2) is provided with Z source network and three phase full bridge; The structure of described Z source network is: the two-phase of the direct-current input power supplying inductance of respectively connecting; The two ends of two inductance intersect each electric capacity in parallel; Described three phase full bridge is made of six power switchs.
3. according to the driver for brushless DC motor based on the Z source claimed in claim 2, it is characterized in that: diode of front end series connection of described Z source network, its conducting direction is identical with the sense of current of direct-current input power supplying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206946259U CN202978791U (en) | 2012-12-15 | 2012-12-15 | Brushless direct current motor driver based on Z source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206946259U CN202978791U (en) | 2012-12-15 | 2012-12-15 | Brushless direct current motor driver based on Z source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978791U true CN202978791U (en) | 2013-06-05 |
Family
ID=48519813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206946259U Expired - Fee Related CN202978791U (en) | 2012-12-15 | 2012-12-15 | Brushless direct current motor driver based on Z source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978791U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066899A (en) * | 2012-12-15 | 2013-04-24 | 安徽工程大学 | Brushless direct current (DC) motor driver based on Z source and control method thereof |
| CN106452209A (en) * | 2016-12-07 | 2017-02-22 | 江苏理工学院 | Synchronous driving control device of double-permanent-magnet brushless motor |
| CN113853719A (en) * | 2019-03-29 | 2021-12-28 | 阿尔法能源技术公司 | Module-based energy system with converter source module and related method |
| US11964573B2 (en) | 2022-09-14 | 2024-04-23 | Tae Technologies, Inc. | Module-based energy systems having converter-source modules and methods related thereto |
-
2012
- 2012-12-15 CN CN2012206946259U patent/CN202978791U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066899A (en) * | 2012-12-15 | 2013-04-24 | 安徽工程大学 | Brushless direct current (DC) motor driver based on Z source and control method thereof |
| CN103066899B (en) * | 2012-12-15 | 2015-03-25 | 安徽工程大学 | Brushless direct current (DC) motor driver based on Z source and control method thereof |
| CN106452209A (en) * | 2016-12-07 | 2017-02-22 | 江苏理工学院 | Synchronous driving control device of double-permanent-magnet brushless motor |
| CN113853719A (en) * | 2019-03-29 | 2021-12-28 | 阿尔法能源技术公司 | Module-based energy system with converter source module and related method |
| US11884167B2 (en) | 2019-03-29 | 2024-01-30 | Tae Technologies, Inc. | Module-based energy systems having converter-source modules and methods related thereto |
| US11964573B2 (en) | 2022-09-14 | 2024-04-23 | Tae Technologies, Inc. | Module-based energy systems having converter-source modules and methods related thereto |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105207439B (en) | It is a kind of that there is the switched reluctance motor system and its method for diagnosing faults of fault tolerance based on splitting phase tap | |
| CN202978791U (en) | Brushless direct current motor driver based on Z source | |
| US8525474B2 (en) | Charge/start system and electric vehicle applying the same | |
| CN107437846A (en) | The electronic control circuit of actuator and the method for operating stand-by power source sub-component | |
| CN203895363U (en) | Driving and switch state detection circuit of relay | |
| CN102437814A (en) | Bi-directional back-boost-type inverter device | |
| CN102916638A (en) | Underground brushless DC motor controller | |
| CN103501115A (en) | Interleaved and parallel working direct-current (DC) step-down circuit | |
| CN212518794U (en) | Step-up and step-down control device of bidirectional three-level DC-DC converter | |
| CN111130172A (en) | Vehicle charging system and electric vehicle | |
| CN103066899B (en) | Brushless direct current (DC) motor driver based on Z source and control method thereof | |
| CN201222711Y (en) | Electric energy feedback device for electric control system of industrial sewing machine | |
| CN202034774U (en) | Overvoltage protection device for permanent magnet synchronous motor control failure | |
| CN201994901U (en) | Electric driving controller of electric vehicle | |
| CN108447735B (en) | Capacitive load impact resistant double-path high-voltage control assembly and closing control method thereof | |
| CN109274310A (en) | The switched Reluctance Motor Control System and control method of integrated driving and power battery charging | |
| CN204809953U (en) | Many input voltage's rail vehicle fills motor system | |
| CN203318181U (en) | Direct current brushless sensorless electric vacuum pump control device | |
| CN101340164B (en) | High-voltage frequency transformer energy feeding braking device | |
| CN209419298U (en) | A kind of speed regulation potential energy load energy-saving control circuit | |
| CN210072026U (en) | Feedback type direct-current power supply testing device | |
| CN203472840U (en) | Energy-saving braking system and electric automobile | |
| CN205890866U (en) | Electric vacuum pump controlling means for electric automobile | |
| CN202358785U (en) | Energy recovering device | |
| CN211000941U (en) | Steering pump system of new energy electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130605 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |