CN2922268Y - Three-phase double-full-control bridge power device topology control device - Google Patents
Three-phase double-full-control bridge power device topology control device Download PDFInfo
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- CN2922268Y CN2922268Y CNU2006200977120U CN200620097712U CN2922268Y CN 2922268 Y CN2922268 Y CN 2922268Y CN U2006200977120 U CNU2006200977120 U CN U2006200977120U CN 200620097712 U CN200620097712 U CN 200620097712U CN 2922268 Y CN2922268 Y CN 2922268Y
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Abstract
The utility model provides a two full accuse bridge power device topological control device of three-phase, controller including the three-phase full accuse bridge and power device thereof, its characterized in that: the three-phase fully-controlled bridge comprises two three-phase fully-controlled bridges (1) and (2), wherein the anode of the bridge (1) is connected with the anode of a direct-current power supply, the cathode of the bridge (2) is connected with the cathode of the direct-current power supply, the cathode of the bridge (1) is connected with the anode of the bridge (2) through a power device, the cathode of the bridge (1) is connected with the cathode of the bridge (2) through the power device, and bridge arms of the two three-phase fully-controlled bridges serve as two groups of three-phase output ends.
Description
Technical field
The utility model relates to the two fully controlled bridge power devices topology of a kind of three-phase control device, adopts the method for series connection when the motor low speed especially for control magneto twin coil, to improve the fan-out capability of motor torque; When the motor high speed, change the motor twin coil into parallel way by series system, to reduce coil inductance, the ability of output torque when strengthening the motor high speed.
Background technology
Along with society and development of technology, people have higher requirement to dynamic property, economy, fail safe, maneuverability and the comfortableness of Hyundai Motor, various for this reason new electric devices and electronic installation are widely used in automobile, and the electrical system load of automobile is increased greatly.As everyone knows, actuator will be exported bigger power usually in these devices, and existing power-supply system is difficult to provide so big power.Therefore, in already used various electronic installations, usually more with surging of handling of electromagnetically operated valve or pneumatic actuator.But because electric energy has series of advantages such as transmission is easy, conversion is easy, control is flexible, adopt electromagnetism or electric actuator to replace to surge or pneumatic actuator will become a kind of trend, as adopt electric boosted power steering system to come into operation, adopt the ABS system of electromagnetic brake and electronic air throttle etc. also to develop fully.Theoretically, by the system of 42V driven, its efficient is than machinery or fluid pressure type system height, but what play the decisive influence effect for overall system efficiency is generator.Traditional automobile current generator average efficiency is about 50%, and the efficient of 42V starting/generating all-in-one can reach more than 80%.As everyone knows, the generator efficiency difference, the oil consumption of automobile is also different.In order to obtain higher fuel efficiency, the equipment that available engine directly drives will change into by driven by power, as electric air-conditioning.Simultaneously, many functions that increase newly and the device that improves old function also make electrical appliance and electronic equipment in a large number, as power window, current vortex retarder etc.
In recent years, the amount of automotive electric equipment increases with about speed of annual 6%, and according to the statistics and the prediction of U.S. Visteon company, in a few years from now on, the electric power of electrical equipment and electronic equipment will reach 10kW on the vehicle.
More than everything all requires power-supply system that bigger power is provided, but the peak power output that the alternating current generator in existing 12V or the 24V electric system can provide under comparatively economic condition is about 3kW.Simultaneously, the continuous increase of electrical power makes the increase of conductor cross-section and quantity be unfavorable for driving economy and fail safe.Like this, the voltage of lifting automobile electric appliance system just becomes inexorable trend.Through researching and analysing, think that the electric pressure of automotive electrical system is increased to the 42V optimum, not only safety but also economy.
If realize the 42V automobile electric appliance system, starting/generating all-in-one (IntegratedStarter Generator is called for short ISG, down together) is a core technology.
The ISG technology is one of generally acknowledged following automobile advanced technology of current motor-dom, it is based on modern electrical machine technology, advanced person's power electronic technology, detection technique and digital control technology, start-up function and electricity generate function organic assembling with automobile engine, requirement reaches the output torque of trying one's best big with the input of as far as possible little power supply when low speed, higher generating efficiency when high speed.Below be the contrast of several motor of ISG now pluses and minuses:
(1) permanent-magnet brushless DC electric machine.Unit volume power output height, volume is little, starting torque is big.Problem one torque pulsation, the 2nd, position transducer that need be more expensive, the 3rd, permanent magnetic material cost height, and can degaussing under the environment of short circuit, heavy service, high temperature or strong vibration.
(2) asynchronous machine.Advantage is simple in structure, and is easy to maintenance, the control technology maturation.Shortcoming is that volume is big, starting current is big, thereby to the requirement height of power-supply system and inverter power element.
(3) switched reluctance machines.Advantage is that high speed performance is superior, and is simple in structure, can phase-deficient operation.Shortcoming is the noise height, exports torque less than the permanent magnet brushless dc utmost point at start-up period.
Compare with phase asynchronous ISG, switching magnetic-resistance ISG, the outstanding advantage of rare earth permanent magnet ISG is that starting torque is big, starting/generating efficiency height, but because of the unadjustable property of rare earth permanent magnet ISG air-gap field, starting and generating two states propose the requirement of relative contradiction to system design.Need export the occasion of big torque when ISG low speed, rare-earth permanent-magnet electric machine is to select preferably.But because the unadjustable property of rare-earth permanent-magnet electric machine air-gap field, when higher rotation speed, because the back-emf height, when input voltage was low, its output torque meeting reduced greatly, even can't export torque.Vehicle not only requires the output high torque (HT) when the low speed to ISG, also requires it to export higher torque when high speed.This has just proposed the requirement of contradiction to the design of rare earth permanent magnet ISG motor and controller: high torque (HT) output during as if assurance low speed, the output of torque when just being difficult to guarantee high speed; If torque output when guaranteeing high speed, the high torque (HT) output when just being difficult to guarantee low speed.
Fig. 1 is conventional rare-earth permanent-magnet electric machine and three phase full bridge power switch circuit principle thereof.
Domestic and international research overview:
There is not the uncontrollable problem of magneto air-gap field in the development of external ISG to adopt AC induction motor in the majority, and power of motor is less simultaneously, does not also have low pressure magneto low-speed high-torque and high speed to export the report of higher torque solution.
Domestic now mainly in the application of studying high pressure ISG, what the development mechanism of part 42V permanent magnetism ISG was studied is the exploitation of low-power machine, Yan Jiu direction mainly is the fan-out capability of higher torque when solving the motor high speed simultaneously, does not also have low pressure magneto low-speed high-torque and high speed to export the report of higher torque solution.
Summary of the invention
The purpose of this utility model is the two fully controlled bridge power device topology of a kind of three-phase of a design control device, and especially for the device of twin coil magneto control, control twin coil motor changes coil inductance as required.
The two fully controlled bridge power device topology of the technical solution of the utility model three-phase of the present utility model control device comprises the controller of three-phase full-controlled bridge and power device thereof, it is characterized in that: comprise two three-phase full-controlled bridges 1 and 2,1 positive pole is connected with the positive pole of DC power supply, 2 negative pole is connected with the negative pole of DC power supply, 1 negative pole is connected with 2 positive pole by power device, 1 negative pole is connected with 2 negative pole by power device, 2 positive pole is connected with 1 positive pole by power device, and the brachium pontis of two three-phase full-controlled bridges is as two groups of three-phase output ends.
Advantage of the present utility model: the coil of motor adopts the method for designing of twin coil, and when motor low speed need be exported high torque (HT), motor coil adopted the method for series connection, to improve the fan-out capability of motor torque; Need export higher torque at a high speed at motor, and this moment, winding back emf was higher, under the low situation of input voltage, in the time of can't guaranteeing to export higher torque, change motor coil into parallel way by series system, to reduce coil inductance, the ability of output torque when strengthening the motor high speed.
Description of drawings
Fig. 1 is conventional rare-earth permanent-magnet electric machine and three phase full bridge power switch circuit principle thereof;
Fig. 2 rare earth permanent magnet brushless direct current motor system diagram;
Fig. 3, Fig. 4 are the rare earth permanent magnet brushless direct current motor fundamental diagrams;
The two fully controlled bridge power device topology of Fig. 5 three-phase control device circuit theory diagrams;
Schematic diagram when Fig. 6 adopts series connection control for the motor twin coil;
Schematic diagram when Fig. 7 adopts Parallel Control for the motor twin coil.
Embodiment
For solving the problem of rare earth direct current permanent magnet motor low speed and high speed torque output, change coil inductance by design twin coil motor and control device of the present utility model.The coil of motor adopts the method for designing of twin coil, and when motor low speed need be exported high torque (HT), motor coil adopted the method for series connection, to improve the fan-out capability of motor torque; Need export higher torque at a high speed at motor, and this moment, winding back emf was higher, under the low situation of input voltage, in the time of can't guaranteeing to export higher torque, change motor coil into parallel way by series system, to reduce coil inductance, the ability of output torque when strengthening the motor high speed.
Fig. 2 is motor twin coil and two three phase full bridge power switch circuit principle:
VF is a power inverter among Fig. 2, REPMM is the body of rare-earth permanent-magnet electric machine, PS is the rotor-position sensor with the coaxial connection of motor body, the signal that controller detects rotor-position sensor carries out producing the pulse-width modulation PWM signal after the logical conversion, each power switch pipe V1～V6 of power inverter is delivered in amplification through overdriving, thereby each phase winding of control motor is worked in certain sequence, produces the great-jump-forward rotating magnetic field in motor gas-gap.
Fig. 3 and Fig. 4 are the rare earth permanent magnet brushless direct current motor fundamental diagrams, are the operation principle of example explanation motoring condition with the two star three-phase six state brshless DC motors that are conducted below:.
When the rotor rare-earth permanent magnet is positioned at position shown in Figure 3, rotor-position sensor output position of magnetic pole signal, through control circuit logical conversion rear drive power inverter, be power switch pipe V1, V6 conducting, it is winding A, B energising, A advances B and goes out, and stator-rotator magnetic field interactions this moment drags the rotor clockwise direction and rotates.The current flowing path is: positive source → V1 → A phase winding → B phase winding → V6 → power cathode.When rotor turns over 60 ° of electrical degrees, when arriving among Fig. 4 the position, position sensor output signal, switching tube V6 is ended, V2 conducting, still conducting of V1 this moment, winding A, C energising, A advances C and goes out, and stator-rotator magnetic field interactions this moment makes rotor continue to rotate along clockwise direction.The current flowing path is: positive source → V1 → A phase winding → C phase winding → V2 → power cathode.When the rotor continuation was crossed 60 ° of electrical degrees along clockwise revolution, the turn-on logic of power switch pipe was V3 V2 → V3V4 → V5 V4 → V5 V6 → V1 V6 ..., then the rotor field effect and the clockwise direction that are subjected to the stator resultant magnetic field all the time rotates continuously.
When motor is made generator operation, dragged by engine, armature conductor rotates cutting magnetic line in magnetic field, and armature winding produces induced electromotive force.
Fig. 5 is the two fully controlled bridge power device topology of three-phase control device circuit theory diagrams: Q1～Q15 is the device for power switching of band fly-wheel diode among the figure, and BATTERY is an electrokinetic cell, and CAPL is an electric capacity.
The utility model comprises the controller of two three-phase full-controlled bridges and power device thereof.Q1～Q6 forms three-phase full-controlled bridge 1; Q7～Q12 forms three-phase full-controlled bridge and 2; 1 positive pole is connected with the positive pole of DC power supply; 2 negative pole is connected with the negative pole of DC power supply; 1 negative pole is connected with 2 positive pole by power device Q14; 1 negative pole is connected with 2 negative pole by power device Q15, and 2 positive pole passes through power device Q13 and is connected with 1 positive pole, and the brachium pontis of two three-phase full-controlled bridges is as two groups of three-phase output end a1, b1, c1 and a2, b2, c2.
Principle, Fig. 7 when Fig. 6 controls for adopting series connection is the principle when adopting Parallel Control: two groups of three-phase output ends connect twin coil A1, B1, C1 and A2, B2, the C2 of motor, when motor speed is low, winding back emf is very little, for limiting the excessive damage power device of current of electric rate of change and causing strong electromagnetic, export high torque (HT) simultaneously, the control motor windings is in tandem working mode: Q13, Q15 turn-offs, and Q14 is open-minded; When motor speed was higher, back-emf was bigger, can reduce armature supply, for guaranteeing to produce enough output torques, motor windings is switched to state operation in parallel: Q13, Q15 open, Q14 turn-offs, to reduce the back-emf of armature, the ability of output torque when strengthening the motor high speed.
Q1～Q15 is the device for power switching of band fly-wheel diode among the figure, and A1, A2, B1, B2, C1, C2 are two three-phase coils of motor, and BATTERY is the DC dynamo battery, and CAPL is an electric capacity.
Fig. 1 is conventional rare-earth permanent-magnet electric machine and three phase full bridge power switch circuit principle thereof, and Q1～Q6 is the device for power switching of band fly-wheel diode among the figure, and BATTERY is an electrokinetic cell, and CAPL is an electric capacity.
As Fig. 2: the operation principle of rare earth permanent magnetic dc motor is identical with common permanent magnet dc motor with electromagnetic type, and the basic comprising of brshless DC motor comprises motor body, control device and three parts of rotor-position sensor.The back-emf of rare-earth permanent-magnet electric machine is mainly with following relating to parameters:
(1) motor speed
(2) magnetic field intensity of permanent magnet generation
(3) inductance of coil
In the exploitation of ISG, range of motor speeds is bigger, requires low speed that the fan-out capability of high torque (HT), high speed higher torque is arranged in the range of speeds.Therefore, the range of speeds is immutable.
The magnetic field intensity that permanent magnet produces is with the material of permanent magnet, and magnetic field air gap etc. are relevant.After permanent magnet, magnetic field air gap are finished in design when guaranteeing low-speed high-torque output, can produce higher back-emf when high speed, these parameters can't be regulated.
In above three parameters, can only change the back-emf of magneto by the parameter that changes coil inductance.Its operation principle is the example explanation with Fig. 3 and Fig. 4
Claims (1)
1. the two fully controlled bridge power devices topology of three-phase control device, the controller that comprises three-phase full-controlled bridge and power device thereof, it is characterized in that: comprise two three-phase full-controlled bridges (1) and (2), (1) positive pole is connected with the positive pole of DC power supply, (2) negative pole is connected with the negative pole of DC power supply, (1) negative pole is connected by the positive pole of power device with (2), (1) negative pole is connected by the negative pole of power device with (2), (2) positive pole is connected by the positive pole of power device with (1), and the brachium pontis of two three-phase full-controlled bridges is as two groups of three-phase output ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200977120U CN2922268Y (en) | 2006-07-10 | 2006-07-10 | Three-phase double-full-control bridge power device topology control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200977120U CN2922268Y (en) | 2006-07-10 | 2006-07-10 | Three-phase double-full-control bridge power device topology control device |
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| CN2922268Y true CN2922268Y (en) | 2007-07-11 |
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| CNU2006200977120U Expired - Lifetime CN2922268Y (en) | 2006-07-10 | 2006-07-10 | Three-phase double-full-control bridge power device topology control device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048925A (en) * | 2015-08-18 | 2015-11-11 | 重庆大学 | Switching strategy based on switching device of permanent magnet synchronous motor windings |
| CN105048888A (en) * | 2015-08-18 | 2015-11-11 | 重庆大学 | Switching device of permanent magnet synchronous motor windings |
| CN105186817A (en) * | 2015-08-18 | 2015-12-23 | 重庆大学 | Winding design aimed at winding switching device of permanent magnet synchronous motor |
| CN106655858A (en) * | 2015-10-28 | 2017-05-10 | 周伯飞 | Annular inverter circuit |
-
2006
- 2006-07-10 CN CNU2006200977120U patent/CN2922268Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048925A (en) * | 2015-08-18 | 2015-11-11 | 重庆大学 | Switching strategy based on switching device of permanent magnet synchronous motor windings |
| CN105048888A (en) * | 2015-08-18 | 2015-11-11 | 重庆大学 | Switching device of permanent magnet synchronous motor windings |
| CN105186817A (en) * | 2015-08-18 | 2015-12-23 | 重庆大学 | Winding design aimed at winding switching device of permanent magnet synchronous motor |
| CN105048925B (en) * | 2015-08-18 | 2018-06-19 | 重庆大学 | A kind of method for handover control based on permanent magnet synchronous motor winding change-over switch |
| CN106655858A (en) * | 2015-10-28 | 2017-05-10 | 周伯飞 | Annular inverter circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130916 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130916 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: Dongfeng Commercial Vehicle Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic & Technological Development Zone, Hubei, Wuhan, China, No. 10 Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070711 |
|
| EXPY | Termination of patent right or utility model |