CN205377735U - Motor drive dc -to -ac converter based on siC device - Google Patents
Motor drive dc -to -ac converter based on siC device Download PDFInfo
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- CN205377735U CN205377735U CN201620050460.XU CN201620050460U CN205377735U CN 205377735 U CN205377735 U CN 205377735U CN 201620050460 U CN201620050460 U CN 201620050460U CN 205377735 U CN205377735 U CN 205377735U
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- effect transistor
- field effect
- stator winding
- sustained diode
- diode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The utility model discloses a motor drive dc -to -ac converter based on siC device belongs to the motor drive inverter technology field, including a plurality of field effect transistor and a plurality of freewheeling diode, a plurality of field effect transistor are carborundum siC metal - oxide layer - semiconductor - field effect transistor, a plurality of freewheeling diode are siC freewheeling diode, all be connected through optical coupler between freewheeling diode and the field effect transistor, field effect transistor includes a field effect transistor Q1, the 2nd field effect transistor Q2, the 3rd field effect transistor Q3, fourth field effect transistor Q4, the 5th field effect transistor Q5, the 6th field effect transistor Q6, freewheeling diode includes a freewheeling diode D1, the 2nd freewheeling diode D2, the 3rd freewheeling diode D3, fourth freewheeling diode D4, the 5th freewheeling diode D5, the 6th freewheeling diode D6. The utility model provides a condition that can't work down at high temperature, high -frequency and high pressure of prior art's dc -to -ac converter.
Description
Technical field
This utility model relates to a kind of motor drive inverter, particularly relates to a kind of motor-driven three-phase inverter based on SiC device, belongs to motor drive inverter technical field.
Background technology
Existing inverter is the inverter of individual event bridge or three-phase bridge, but present silicon device is not suitable for working in high temperature environments, and along with the rising of junction temperature, its conducting resistance can significantly increase, this will make the loss of device continue to increase, promote the further up of junction temperature, define vicious cycle.Work under such circumstances, in order to prevent device from burning because junction temperature is too high, powerful fan or even water cooling system to be added so that the volume of whole inverter increases, even cooling system has accounted for the half of whole volume, and this allows for inverter can not meet the occasion that volume has strict demand.
In current power system, commutator and inverter play particularly important effect, and at commutator and inverter internal, based on the element that the igbt of Si is commonly used at present, compared with Si, the breakdown electric field of SiC is higher is ten times of Si, the heat resistance of SiC is also higher, heat resisting temperature is more than 600 DEG C, junction field effect transistor JFET and MOS field-effect transistor MOSFET on state resistance value based on SiC is less, even if speed-sensitive switch also can be realized under the high temperature of about 300 DEG C, visible, if SiC can be applied in the small-size light-weight that can realize inverter on inverter and high efficiency, the cost of inverter can also be reduced.
SiC is as a kind of broad stopband novel semiconductor material with broad based growth potentiality, there is big energy gap, high breakdown electric field, high saturated electrons drift speed, the physical characteristic that high heat conductance and high bonding energy etc. are excellent, SiC power electronic devices is reducing on-state loss and switching loss, also make device at high temperature while improving system effectiveness, high power, high pressure, high frequency, application in high humility and radioprotective etc. adverse circumstances is more reliable, this Si base device being also traditional cannot realize, high pressure carbon SiClx (SiC) device can withstand greater than the voltage of 600V or higher.
For problem above, it is increasingly subject to the attention of every country based on the motor drive inverter of SiC device.
Utility model content
Main purpose of the present utility model is to solve the problems referred to above that in currently available technology, motor drive inverter exists, it is provided that a kind of motor-driven three-phase inverter based on SiC device.
The purpose of this utility model can be passed through to adopt the following technical scheme that and reach:
nullA kind of motor drive inverter based on SiC device，Including multiple field effect transistor and multiple fly-wheel diode，A motor it is connected between described field effect transistor and described fly-wheel diode，Also it is connected with an alternating current power supply U between described field effect transistor with described fly-wheel diode，Multiple described field effect transistor are carborundum SiC metal-oxide layer-quasiconductor-field-effect transistor，Multiple described fly-wheel diodes are SiC fly-wheel diode，It is connected each through photo-coupler between described fly-wheel diode with described field effect transistor，And constitute drive circuit，Field effect transistor includes the first field effect transistor Q1、Second field effect transistor Q2、3rd field effect transistor Q3、4th field effect transistor Q4、5th field effect transistor Q5、6th field effect transistor Q6，Fly-wheel diode includes the first sustained diode 1、Second sustained diode 2、3rd sustained diode 3、4th sustained diode 4、5th sustained diode 5、6th sustained diode 6.
nullFurther，The drain electrode of described first field effect transistor Q1 is connected with the negative electrode of the first sustained diode 1，The source electrode of the first field effect transistor Q1 and the anode of the first sustained diode 1 connect，The drain electrode of the second field effect transistor Q2 is connected with the negative electrode of the second sustained diode 2，The source electrode of the second field effect transistor Q2 and the anode of the second sustained diode 2 are connected，The drain electrode of the 3rd field effect transistor Q3 is connected with the negative electrode of the 3rd sustained diode 3，The source electrode of the 3rd field effect transistor Q3 and the anode of the 3rd sustained diode 3 connect，The drain electrode of the 4th field effect transistor Q4 is connected with the negative electrode of the 4th sustained diode 4，The source electrode of the 4th field effect transistor Q4 and the anode of the 4th sustained diode 4 are connected，The drain electrode of the 3rd field effect transistor Q5 is connected with the negative electrode of the 3rd sustained diode 5，The source electrode of the 3rd field effect transistor Q5 and the anode of the 3rd sustained diode 5 connect，The drain electrode of the 4th field effect transistor Q6 is connected with the negative electrode of the 4th sustained diode 6，The source electrode of the 4th field effect transistor Q6 and the anode of the 4th sustained diode 6 are connected.
Further, described motor is brshless DC motor, there is the stator winding LU of three-phase Y-connection, stator winding LV, stator winding LW, described stator winding LU, described stator winding LV, described stator winding LW respective one end be connected to each junction point of the described field effect transistor being connected in series.
Further, described brshless DC motor adopts 120 degree of step modes of three-phase, successively with every 60 degree of electric angle, from stator winding LU to stator winding LV, from stator winding LU to stator winding LW, from stator winding LV to stator winding LW, from stator winding LV to stator winding LU, from stator winding LW to stator winding LU, from stator winding LW to stator winding LV, current of electric is commutated.
Further, one end of described stator winding LU is connected with the drain electrode of the source electrode of described first field effect transistor Q1 and described 3rd field effect transistor Q2, and the other end of described stator winding LU is connected with described stator winding LV.
Further, the other end of described stator winding LV is connected with the drain electrode of the source electrode of described first field effect transistor Q3 and described 3rd field effect transistor Q4, one end of described stator winding LV is connected with described stator winding LW, and the other end of described stator winding LW is connected with the drain electrode of the source electrode of described first field effect transistor Q5 and described 3rd field effect transistor Q6.
Further, described alternating current power supply U and a rectification circuit connect, described rectification circuit is made up of the 7th sustained diode the 7, the 8th sustained diode the 8, the 9th sustained diode the 9, the tenth sustained diode 10, and described 7th sustained diode 7, described 8th sustained diode 8, described 9th sustained diode 9, described tenth sustained diode 10 are SiC fly-wheel diode.
Further, described alternating current power supply U is smoothed as DC source by a capacitor by described rectification circuit, powers for multiple described field effect transistor and multiple described fly-wheel diode.
Advantageous Effects of the present utility model: a kind of motor drive inverter based on SiC device of this utility model design, solve the condition that the inverter of prior art cannot work under high temperature, altofrequency and high pressure, the high-temperature stability utilizing SiC material makes inverter at high temperature need not cool down, SiC device quickly turn on and off characteristic, inverter can high-frequency work, and the wide forbidden band of SiC, the device of SiC can under high pressure work.
Accompanying drawing explanation
Fig. 1 is this utility model motor drive inverter circuit diagram based on SiC device.
Detailed description of the invention
For make those skilled in the art clearly with clear and definite the technical solution of the utility model, below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
nullAs shown in Figure 1，A kind of motor drive inverter based on SiC device，Including multiple field effect transistor and multiple fly-wheel diode，A motor it is connected between described field effect transistor and described fly-wheel diode，Also it is connected with an alternating current power supply U between described field effect transistor with described fly-wheel diode，Multiple described field effect transistor are carborundum SiC metal-oxide layer-quasiconductor-field-effect transistor，Multiple described fly-wheel diodes are SiC fly-wheel diode，It is connected each through photo-coupler between described fly-wheel diode with described field effect transistor，And constitute drive circuit，Field effect transistor includes the first field effect transistor Q1、Second field effect transistor Q2、3rd field effect transistor Q3、4th field effect transistor Q4、5th field effect transistor Q5、6th field effect transistor Q6，Fly-wheel diode includes the first sustained diode 1、Second sustained diode 2、3rd sustained diode 3、4th sustained diode 4、5th sustained diode 5、6th sustained diode 6，The drain electrode of described first field effect transistor Q1 is connected with the negative electrode of the first sustained diode 1，The source electrode of the first field effect transistor Q1 and the anode of the first sustained diode 1 connect，The drain electrode of the second field effect transistor Q2 is connected with the negative electrode of the second sustained diode 2，The source electrode of the second field effect transistor Q2 and the anode of the second sustained diode 2 are connected，The drain electrode of the 3rd field effect transistor Q3 is connected with the negative electrode of the 3rd sustained diode 3，The source electrode of the 3rd field effect transistor Q3 and the anode of the 3rd sustained diode 3 connect，The drain electrode of the 4th field effect transistor Q4 is connected with the negative electrode of the 4th sustained diode 4，The source electrode of the 4th field effect transistor Q4 and the anode of the 4th sustained diode 4 are connected，The drain electrode of the 3rd field effect transistor Q5 is connected with the negative electrode of the 3rd sustained diode 5，The source electrode of the 3rd field effect transistor Q5 and the anode of the 3rd sustained diode 5 connect，The drain electrode of the 4th field effect transistor Q6 is connected with the negative electrode of the 4th sustained diode 6，The source electrode of the 4th field effect transistor Q6 and the anode of the 4th sustained diode 6 are connected.
Further, as shown in Figure 1, described motor is brshless DC motor, there is the stator winding LU of three-phase Y-connection, stator winding LV, stator winding LW, described stator winding LU, described stator winding LV, respective one end of described stator winding LW is connected to each junction point of the described field effect transistor being connected in series, described brshless DC motor adopts 120 degree of step modes of three-phase, successively with every 60 degree of electric angle, from stator winding LU to stator winding LV, from stator winding LU to stator winding LW, from stator winding LV to stator winding LW, from stator winding LV to stator winding LU, from stator winding LW to stator winding LU, commutate from stator winding LW to stator winding LV by current of electric.
Further, as shown in Figure 1, one end of described stator winding LU is connected with the drain electrode of the source electrode of described first field effect transistor Q1 and described 3rd field effect transistor Q2, the other end of described stator winding LU is connected with described stator winding LV, the other end of described stator winding LV is connected with the drain electrode of the source electrode of described first field effect transistor Q3 and described 3rd field effect transistor Q4, one end of described stator winding LV is connected with described stator winding LW, and the other end of described stator winding LW is connected with the drain electrode of the source electrode of described first field effect transistor Q5 and described 3rd field effect transistor Q6.
Further, as shown in Figure 1, described alternating current power supply U and a rectification circuit connect, described rectification circuit is made up of the 7th sustained diode the 7, the 8th sustained diode the 8, the 9th sustained diode the 9, the tenth sustained diode 10, described 7th sustained diode 7, described 8th sustained diode 8, described 9th sustained diode 9, described tenth sustained diode 10 are SiC fly-wheel diode, described alternating current power supply U is smoothed as DC source by a capacitor by described rectification circuit, powers for multiple described field effect transistor and multiple described fly-wheel diode.
In sum, a kind of motor drive inverter based on SiC device of this utility model design, solve the condition that the inverter of prior art cannot work under high temperature, altofrequency and high pressure, the high-temperature stability utilizing SiC material makes inverter at high temperature need not cool down, SiC device quickly turn on and off characteristic, inverter can high-frequency work, and the wide forbidden band of SiC, the device of SiC can under high pressure work.
The above; it is only this utility model preferred embodiment; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in scope disclosed in the utility model; it is equal to replacement according to the technical solution of the utility model and design thereof or is changed, being broadly fallen into protection domain of the present utility model.
Claims (8)
- null1. the motor drive inverter based on SiC device，Including multiple field effect transistor and multiple fly-wheel diode，It is characterized in that: between described field effect transistor and described fly-wheel diode, be connected to a motor，Also it is connected with an alternating current power supply U between described field effect transistor with described fly-wheel diode，Multiple described field effect transistor are carborundum SiC metal-oxide layer-quasiconductor-field-effect transistor，Multiple described fly-wheel diodes are SiC fly-wheel diode，It is connected each through photo-coupler between described fly-wheel diode with described field effect transistor，And constitute drive circuit，Field effect transistor includes the first field effect transistor Q1、Second field effect transistor Q2、3rd field effect transistor Q3、4th field effect transistor Q4、5th field effect transistor Q5、6th field effect transistor Q6，Fly-wheel diode includes the first sustained diode 1、Second sustained diode 2、3rd sustained diode 3、4th sustained diode 4、5th sustained diode 5、6th sustained diode 6.
- null2. a kind of motor drive inverter based on SiC device according to claim 1，It is characterized in that: the drain electrode of described first field effect transistor Q1 is connected with the negative electrode of the first sustained diode 1，The source electrode of the first field effect transistor Q1 and the anode of the first sustained diode 1 connect，The drain electrode of the second field effect transistor Q2 is connected with the negative electrode of the second sustained diode 2，The source electrode of the second field effect transistor Q2 and the anode of the second sustained diode 2 are connected，The drain electrode of the 3rd field effect transistor Q3 is connected with the negative electrode of the 3rd sustained diode 3，The source electrode of the 3rd field effect transistor Q3 and the anode of the 3rd sustained diode 3 connect，The drain electrode of the 4th field effect transistor Q4 is connected with the negative electrode of the 4th sustained diode 4，The source electrode of the 4th field effect transistor Q4 and the anode of the 4th sustained diode 4 are connected，The drain electrode of the 3rd field effect transistor Q5 is connected with the negative electrode of the 3rd sustained diode 5，The source electrode of the 3rd field effect transistor Q5 and the anode of the 3rd sustained diode 5 connect，The drain electrode of the 4th field effect transistor Q6 is connected with the negative electrode of the 4th sustained diode 6，The source electrode of the 4th field effect transistor Q6 and the anode of the 4th sustained diode 6 are connected.
- 3. a kind of motor drive inverter based on SiC device according to claim 1, it is characterized in that: described motor is brshless DC motor, there is the stator winding LU of three-phase Y-connection, stator winding LV, stator winding LW, described stator winding LU, described stator winding LV, described stator winding LW respective one end be connected to each junction point of the described field effect transistor being connected in series.
- 4. a kind of motor drive inverter based on SiC device according to claim 3, it is characterized in that: described brshless DC motor adopts 120 degree of step modes of three-phase, successively with every 60 degree of electric angle, from stator winding LU to stator winding LV, from stator winding LU to stator winding LW, from stator winding LV to stator winding LW, from stator winding LV to stator winding LU, from stator winding LW to stator winding LU, from stator winding LW to stator winding LV, current of electric is commutated.
- 5. a kind of motor drive inverter based on SiC device according to claim 4, it is characterized in that: one end of described stator winding LU is connected with the drain electrode of the source electrode of described first field effect transistor Q1 and described 3rd field effect transistor Q2, and the other end of described stator winding LU is connected with described stator winding LV.
- 6. a kind of motor drive inverter based on SiC device according to claim 5, it is characterized in that: the other end of described stator winding LV is connected with the drain electrode of the source electrode of described first field effect transistor Q3 and described 3rd field effect transistor Q4, one end of described stator winding LV is connected with described stator winding LW, and the other end of described stator winding LW is connected with the drain electrode of the source electrode of described first field effect transistor Q5 and described 3rd field effect transistor Q6.
- 7. a kind of motor drive inverter based on SiC device according to claim 1, it is characterized in that: described alternating current power supply U and a rectification circuit connect, described rectification circuit is made up of the 7th sustained diode the 7, the 8th sustained diode the 8, the 9th sustained diode the 9, the tenth sustained diode 10, and described 7th sustained diode 7, described 8th sustained diode 8, described 9th sustained diode 9, described tenth sustained diode 10 are SiC fly-wheel diode.
- 8. a kind of motor drive inverter based on SiC device according to claim 7, it is characterized in that: described alternating current power supply U is smoothed as DC source by a capacitor by described rectification circuit, powers for multiple described field effect transistor and multiple described fly-wheel diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050460.XU CN205377735U (en) | 2016-01-19 | 2016-01-19 | Motor drive dc -to -ac converter based on siC device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050460.XU CN205377735U (en) | 2016-01-19 | 2016-01-19 | Motor drive dc -to -ac converter based on siC device |
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| Publication Number | Publication Date |
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| CN205377735U true CN205377735U (en) | 2016-07-06 |
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| CN201620050460.XU Expired - Fee Related CN205377735U (en) | 2016-01-19 | 2016-01-19 | Motor drive dc -to -ac converter based on siC device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070353A (en) * | 2017-03-21 | 2017-08-18 | 杭州阔博科技有限公司 | A kind of drive control device applied to high-speed electric expreess locomotive |
| CN110572110A (en) * | 2019-10-17 | 2019-12-13 | 江苏科技大学 | Device and method for transmitting information by using underwater robot propulsion motor |
| US11923716B2 (en) | 2019-09-13 | 2024-03-05 | Milwaukee Electric Tool Corporation | Power converters with wide bandgap semiconductors |
-
2016
- 2016-01-19 CN CN201620050460.XU patent/CN205377735U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070353A (en) * | 2017-03-21 | 2017-08-18 | 杭州阔博科技有限公司 | A kind of drive control device applied to high-speed electric expreess locomotive |
| US11923716B2 (en) | 2019-09-13 | 2024-03-05 | Milwaukee Electric Tool Corporation | Power converters with wide bandgap semiconductors |
| CN110572110A (en) * | 2019-10-17 | 2019-12-13 | 江苏科技大学 | Device and method for transmitting information by using underwater robot propulsion motor |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20180119 |