CN209313736U - A kind of continuously adjustable DC power supply of the high-power electric current based on iron based nano crystal material - Google Patents
A kind of continuously adjustable DC power supply of the high-power electric current based on iron based nano crystal material Download PDFInfo
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- CN209313736U CN209313736U CN201822048318.3U CN201822048318U CN209313736U CN 209313736 U CN209313736 U CN 209313736U CN 201822048318 U CN201822048318 U CN 201822048318U CN 209313736 U CN209313736 U CN 209313736U
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Abstract
The utility model discloses a kind of high-power electric currents based on iron based nano crystal material to be continuously adjusted DC power supply, is made of power conversion circuit, auxiliary power supply system, control system.Power conversion circuit is connected with three-phase input respectively with auxiliary power supply system, auxiliary power supply system is connected to the control system, control system is connected with power conversion circuit, power conversion circuit is connected with output, the power conversion circuit includes electromagnetic interface filter (F1), three-phase air switch (K1) three-phase controlled rectifier circuit (A2), input filter circuit (A3), by IGBT switching device IB1~IB4 (A4), iron based nano crystal high frequency transformer (BQ), the full-bridge circuit that secondary side rectification Da1~Da4 (A5) is constituted, output filter circuit.The utility model is using isolated form full-bridge topology and uses phase-shift control mode, meets the demand of different switching frequencies.
Description
Technical field
The utility model relates to a kind of a kind of high-power DC power supply device developed using iron based nano crystal material, this moulds
Block is a kind of high power switching power supply that volume low current is continuously adjustable.
Background technique
In industrial circle, as power electronic technique constantly develops, high-power DC power supply equipment receives more next
More applications, but limited by magnetic element, making high power switching power supply all has biggish volume.Especially it is electroplated in electrolysis
In industry, since the demand of electric current and power is increasing, separate unit DC power supply device is difficult to meet loading demand.Traditional opens
Powered-down source module output current adjustment narrow range, volume are big or only provide the output electric current of a small number of gears, it is online at cabinet after, not only
The big output current adjustment of volume is also very poor.In addition to this, traditional power module it is online use when, it usually needs it is complicated
Current equalizer or dedicated equal flow device, the cost that not only causes that structure is complicated improve etc. as a result, also make module versatility and
Compatibility is limited by very large.
Utility model content
Problem in view of the prior art, the utility model aim are to provide a kind of big function that volume low current is continuously adjustable
Rate DC power supplier can effectively solve the problem of output current adjustment and online compatibility.
The technical solution adopted in the utility model is as follows:
The high-power electric current of iron-based nanometer of the utility model is continuously adjusted DC power supplier, by power conversion circuit, auxiliary
Power supply system, control system is helped to constitute, power conversion circuit is connected with three-phase input respectively with auxiliary power supply system, and auxiliary supplies
Electric system is connected to the control system, and control system is connected with power conversion circuit, and power conversion circuit is connected with output.
The power conversion circuit includes electromagnetic interface filter F1, three-phase air switch K1 three-phase controlled rectifier circuit A2, input
Filter circuit A3 rectifies Da1~Da4A5 by IGBT switching device IB1~IB4A4, iron based nano crystal high frequency transformer BQ, secondary side
The full-bridge circuit of composition, output filter circuit.
The full-bridge circuit, using phase-shift control mode.IGBT full-bridge is in parallel with capacitor in input filter circuit, iron
Bridge arm midpoint is connected before S52 point after base nanometer crystal high frequency transformer BD primary side a point concatenation capacitance Cr, and b point concatenation is iron-based
It is connected in S42 point with rear bridge arm after nanocrystalline resonant inductance Lr；Secondary side rectification Da1, Da2 parallel connection is followed by iron based nano crystal high frequency
The both ends transformer secondary c, d, the secondary e when rectifying Da3, Da4 parallel connection and being followed by iron based nano crystal high frequency transformer pair, the both ends d, iron
Base nanometer crystal high frequency transformer mid-point tap d after iron based nano crystal output inductor L1 with output negative terminal by connecting.
The auxiliary power supply system includes Industrial Frequency Transformer GB, accessory power supply A9.Accessory power supply A9 is that three tunnel pressure stabilizings are defeated
DC power supply out is liquid crystal display panel (A8), soft circuit of controlled rectification, IGBT driving circuit, sample circuit power supply.Wind
Fanning power supply (A10) is that AC/DC converts DC power supply, provides voltage value by control system, powers exclusively for blower.
The control system includes TMS320F2803X digitial controller (A7), liquid crystal display panel (A8), soft electrification
Road, IGBT drive circuit, sample circuit, blower FAN1-FAN8.
The liquid crystal display panel includes all display information of module, warning message and parameter setting, liquid crystal display panel
By single-chip microcontroller and carry out TMS320F2803X communication and display processing.
The soft electrification routes soft resistance RK and controllable DK rectification circuit parallel connection is constituted, and includes commutation driver circuit.
The IGBT drive circuit is used using CONCEPT driving plate as the driving circuit of core, has driving circuit failure concurrently
Detection function.
The sample circuit includes output current sampling circuit: being transferred to current information by cyclic annular Hall sensor H1
The AD signal processing module of number control plate A7 is conveyed to central processing unit after the processing such as operation filtering, calculating；
Output voltage sampling circuit: information of voltage is transferred to the AD of number control plate A7 by cyclic annular Hall sensor H2
Signal processing module is conveyed to central processing unit after the processing such as operation filtering, calculating；
The temperature inside the box sample circuit: using four road high accuracy temperature control resistance, respectively to phase-shifting full-bridge modules A 4, synchronization
Rectification module A5, three phase rectifier modules A 2, iron based nano crystal high frequency transformer BQ carry out temperature acquisition, and pass through key point temperature
Sampling processing module sends central processing unit to after being handled and is handled, and obtains relevant information；
DC bus-bar voltage sampled point Vbus1, Vbus2h are laggard using high precision sampling resistance R1-R4 progress voltage division processing
Enter the AD signal processing module to digital control board A7, the information conveyance after operation filtering and calculation processing is to central processing unit；
Lack detection circuit A1 whether there is phase shortage situation by detection input voltage, and send result to middle centre
Manage device；
Commutation driver circuit is integrated in digital control board A7, to control whether entire power supply exports main power；
The advantages of the utility model and good effect:
1. high-power DC power supply modular power translation circuit is using isolated form full-bridge topology and uses phase shifting control side
Formula, iron based nano crystal transformer BQ bidirectional excitation, is appropriate for high-power transformation.Using TMS320F2803X digital processing core
Piece is able to satisfy the demand of different switching frequencies, the enhanced pulsewidth modulation function of EPWM is conducive to due to being internally integrated AD sampling
The realization of phase shifting control.
2. high-power DC power supply module pair controlled electron element Da1-Da4 parallel form, is able to satisfy High-current output
Needs, be conducive to wide scope electric current and continuously adjust realization.
3. high-power DC power supply module using TMS320F2803X digital processing chip and host computer communication modes from
And given current-order improves the current sharing of intermodule conducive to continuously adjusting for electric current.
Detailed description of the invention
Fig. 1 is the complete machine functional block diagram of the utility model；
Fig. 2 is the auxiliary power supply system schematic diagram of the utility model；
Fig. 3 is the control system schematic diagram of the utility model；
Fig. 4 is the utility model internal structure chart.
In Fig. 4: 1. input terminal P1,2. radiator fan FAN1,3. full-bridge plate A4,4. radiator fan FAN2,5. auxiliary electricity
Source plate A9,6. radiator fan FAN3,7. current Hall H1,8. radiator fan FAN4,9. fan power supply plate A10,10. radiation airs
Fan FAN5,11. input terminal P2,12. phase shortages monitoring A1,13. iron based nano crystal resonant inductance Lr, 14. are spaced apart K1,15. direct currents
Bus processing board A3,16.EMC filters F1,17. liquid crystal display A8,18. radiator fan FAN6,19. iron based nano crystal high frequency transformations
Device BQ, 20. iron based nano crystal output filter L1,21. radiator fan FAN7,22. casing JK.
Specific embodiment
As shown in Figure 1, the DC power supplier of the utility model includes power conversion circuit, auxiliary power supply system, control
System, auxiliary power supply system directly take electricity from input terminal, improve the stability and safety of auxiliary power supply.Using host computer and control
The mode that system communication processed gives current-order realizes the continuously adjustable of electric current.
As shown in Figure 1, the schematic diagram of the power conversion circuit for the utility model.Input terminal P1 connects the intersection of A, B, C tri-
Stream input, translation circuit is by electromagnetic interface filter F1, three-phase controlled rectifier circuit A2, input filter circuit A3, IGBT phase-shifting full-bridge electricity
Road (A4), iron based nano crystal high frequency transformer BQ, circuit of synchronous rectification A5, output filter circuit A6, output terminal P) composition,
OUT+ and OUT- respectively indicates the positive and negative anodes of direct current output.
Three-phase input connects electromagnetic interface filter F1, prevents rear end high-frequency circuit bring higher hamonic wave from polluting voltage on line side, warp
After electromagnetic interface filter (F1), access is spaced apart K1, crosses access A phase after being spaced apart K1 and connects in S21 point access D11 and D12, B phase in S22 point
Enter D21 and D22, C phase accesses D31 and D32 in S31 point, and passes through 3 points of access phase shortage observation circuit A1 of Ka, Kb, Kc.
Three-phase controlled rectifier circuit A2 by six diode D11, D12, D21, D22, D31, D33, form, D11, D21,
Tri- two fabulous pipe cathode of D31 are linked into KD input terminal, tri- two fabulous pipe anodes of D12, D22, D33 by S11, S21, S31
It is linked into DC- by S13, S23, S33, the DC voltage by rectification output with 6 times of input frequency pulsation, and pass through DK
Controlled member controls its output.Filter capacitor C7 is given to charge by charging resistor series connection input filter inductance LA before exporting, input
Filter circuit is filtered using LC, is made of input inductance L1 and bus capacitor C1, and selection L1 is 1.5mH, and C1 is by two 3300uF
Electrolytic capacitor be connected into 1650uF capacitor, can be effectively suppressed 6 frequencys multiplication pulsation, improve DC power supplier power factor, in C3
Both ends form DC bus-bar voltage.50Hz three-phase 380V alternating current is inputted, forms 1.414 times of inputs at DC bus
Voltage be 537V.
IGBT full-bridge circuit passes through phase shifting control, forms pulse width variability electricity in iron based nano crystal high frequency transformer BQ primary side
Pressure.Selection capacitance Cr capacitance is 20uF, prevents the magnetic biasing phenomenon of high frequency transformer.IGBT switching tube IB1 and IB2 are constituted
Bridge arm after leading-bridge, IB3 and IB4.Full-bridge circuit under phase shifting control shares six kinds of switch states, and two on same bridge arm
Switching tube driving signal is the complementary signal that one group of width with dead zone is 180 °, the advanced IB4 driving signal of IB1 driving signal
The controllable phase shift angle of one pulsewidth differs same phase shift angle between IB2 and IB3.The first switch state, IB1 and IB4
Conducting, IB2 and IB3 shutdown, form the forward voltage for being equal to DC bus-bar voltage in high frequency transformer primary side, primary side is to secondary side
Carry out power transmission, secondary side Da1, Da2 conducting.Second of switch state, after a phase shift angle, IB1 movement is turned off,
IB2 is turned off at this time, IB3 shutdown, IB4 conducting, the charging of IB1 junction capacity, IB2 junction capacity electric discharge, due to anti-paralleled diode on IB2
Effect, high frequency transformer original edge voltage are dropped rapidly to zero, and final IB2 both end voltage is reduced to zero, and former pair side is passed without power
Defeated, secondary side is turned off naturally by Da1, Da2.The third switch state, behind a dead zone, IB2 movement is open-minded, at this time IB1
Shutdown, IB3 shutdown, IB4 conducting, due to being reduced to zero in laststate BI2 both end voltage, it is open-minded to realize ZVS no-voltage, iron-based
Nanocrystalline high frequency transformer BQ original edge voltage remains as zero, and without power transmission, secondary side Da1, Da2 are held off on former pair side.
4th kind of switch state, after a phase shift angle, IB4 movement shutdown, IB1 is turned off at this time, IB2 conducting, IB3 shutdown,
High frequency transformer original edge voltage remains as zero, and without power transmission, secondary side Da1, Da2 are held off on former pair side.5th kind is opened
Off status, behind a dead zone, IB3 movement is open-minded, and IB1 is turned off at this time, IB2 conducting, IB4 shutdown, and iron based nano crystal is high
Frequency power transformer BQ primary side formed be equal to DC bus-bar voltage negative voltage, primary side to secondary side carry out power transmission, secondary side Da3,
Da4 conducting.6th kind of switch state, after a phase shift angle, IB2 movement shutdown, IB1 is turned off at this time, IB2 shutdown,
IB4 conducting, the charging of IB2 junction capacity, the electric discharge of IB1 junction capacity, since anti-paralleled diode acts on IB1, iron based nano crystal high frequency
Transformer BQ original edge voltage is dropped rapidly to zero, and final IB1 both end voltage is reduced to zero, and the ZVS for the switch motion of IB1 does standard
Standby, without power transmission, secondary side is turned off naturally by Da3, Da4 on former pair side.
Output filter circuit equally uses LC to filter, and is made of outputting inductance L1 and Support Capacitor C8-C13, and L1 input connects
To transformer common end d point, output end accesses S61 point, and selections L1 is 60uH, C8-C13 by six 4700uF electrolytic capacitor
And it is unified into 18800uF capacitor, buck circuit is constituted, output voltage is that DC bus-bar voltage and transformer voltage ratio and phase shift account for
The product of empty ratio.Change phase shift duty ratio by control phase shift angle, to adjust the size of output electric current.
As shown in figure 3, being the auxiliary power supply system schematic diagram of the utility model.Auxiliary power supply system passes through one drag two transformer
GB is respectively fan power supply A10 and accessory power supply A9 power supply.Due to taking the auxiliary power supply system of electricity using non-busbar voltage, then exist
Isolation topology need not be chosen when choosing the topology of Switching Power Supply.Accessory power supply is inputs after transformer GB transformation, using alternating current
Regulated power supply can be realized.Three road DC voltage of pressure stabilizing+15V, -15V ,+5V is exported respectively, is liquid crystal display panel A8, control
Circuit A7, IGBT driving circuit, sample circuit power supply.Fan power supply is not controlled whole to input after transformer GB transformation by unidirectionally
Current circuit gives duty ratio by control system, forms the adjustable voltage of voltage by non-isolated BUCK buck circuit
Source uses for fan speed regulation power supply.
As shown in figure 3, being the utility model control system schematic diagram.Control system includes TMS320F2803X number control
The circuits such as device processed, liquid crystal display panel A8, control circuit A7, IGBT drive circuit, sample circuit, blower.
Host computer carries out current-order by industrial Modbus communication modes, to TMS320F2803X digitial controller
Given, local state is fed back to host computer by TMS320F2803X digitial controller, to facilitate the Jun Liute for realizing intermodule
Property.
Module works on power starting, and charging resistor accesses between the inductance L1 and bus capacitor C7 of input filter circuit, fills
Electric resistance is chosen for 500 Ω.After specified delay time, by TMS320F2803X digitial controller Setting signal, control
Rectification circuit output, cuts out charging resistor, and carry out tune stream according to given current-order.
TMS320F2803X digitial controller adjusts phase shift angle according to the current-order that host computer gives, according to sampling electricity
Output current sample in road carries out feedback calculating, tracks current instruction value, and TMS320F2803X digitial controller is by PWM wave
It is sent to IGBT drive circuit, opening and turning off for IGBT is realized by the driving plate of CONCEPT.And to driving plate feedback
Protection signal is analyzed and is detected.Form continuously adjustable output electric current.
TMS320F2803X digitial controller is handled according to the signal that temperature sampling circuit returns, and adjusts fan power supply
The duty ratio of A10, to control the revolving speed of blower.According to busbar voltage sample circuit return signal, input voltage state is carried out
Judgement acts input overvoltage/undervoltage.
TMS320F2803X digitial controller is communicated with the single-chip microcontroller on liquid crystal display panel by Modbus, is given
Need the working condition of data to be shown and power module.Liquid crystal display panel is sent according to TMS320F2803X digitial controller
The data reached, progress information is shown and malfunction coefficient.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of high-power electric current based on iron based nano crystal material is continuously adjusted DC power supply, by power conversion circuit, auxiliary
Power supply system, control system are constituted, it is characterised in that: the power conversion circuit and auxiliary power supply system respectively with three-phase input
It is connected, auxiliary power supply system is connected to the control system, and control system is connected with power conversion circuit, power conversion circuit
It is connected with output；
The power conversion circuit includes electromagnetic interface filter F1, three-phase air switch K1 three-phase controlled rectifier circuit A2, input filter
Circuit A3 is made of IGBT switching device IB1~IB4A4, iron based nano crystal high frequency transformer BQ, secondary side rectification Da1~Da4A5
Full-bridge circuit, output filter circuit.
2. the high-power electric current according to claim 1 based on iron based nano crystal material is continuously adjusted DC power supply, described
Full-bridge circuit uses phase-shift control mode, and IGBT full-bridge is in parallel with capacitor in input filter circuit, iron based nano crystal high frequency
Bridge arm midpoint is connected before S52 point after transformer BD primary side a point concatenation capacitance Cr, and b point concatenates iron based nano crystal resonance electricity
It is connected in S42 point with rear bridge arm after sense Lr；The secondary c when rectifying Da1, Da2 parallel connection and being followed by iron based nano crystal high frequency transformer pair,
The both ends d, the secondary e when rectifying Da3, Da4 parallel connection and being followed by iron based nano crystal high frequency transformer pair, the both ends d, iron based nano crystal high frequency
Transformer center tap d after iron based nano crystal output inductor L1 with output negative terminal by connecting.
3. the high-power electric current according to claim 1 based on iron based nano crystal material is continuously adjusted DC power supply, described
Auxiliary power supply system include Industrial Frequency Transformer GB, accessory power supply A9, accessory power supply A9 is that three tunnel pressure stabilizings export DC power supply, is
Soft circuit of liquid crystal display panel A8, controlled rectification, IGBT drive circuit, sample circuit power supply, fan power supply A10 are AC/DC
DC power supply is converted, provides voltage value by control system.
4. the high-power electric current according to claim 1 based on iron based nano crystal material is continuously adjusted DC power supply, described
Control system include TMS320F2803X digitial controller A7, liquid crystal display panel A8, soft circuit, IGBT drive circuit,
Sample circuit, blower FAN1-FAN8.
5. the high-power electric current according to claim 4 based on iron based nano crystal material is continuously adjusted DC power supply, described
Liquid crystal display panel include all display information of module, warning message and parameter setting, liquid crystal display panel by single-chip microcontroller and
Carry out TMS320F2803X communication and display processing.
6. the high-power electric current according to claim 5 based on iron based nano crystal material is continuously adjusted DC power supply, described
Soft electrification route soft resistance RK and controllable DK rectification circuit parallel connection and constitute, and include commutation driver circuit.
7. the high-power electric current according to claim 4 based on iron based nano crystal material is continuously adjusted DC power supply, described
IGBT drive circuit use using CONCEPT driving plate as the driving circuit of core, have driving circuit fault detection capability concurrently.
8. the high-power electric current according to claim 4 based on iron based nano crystal material is continuously adjusted DC power supply, described
Sample circuit include output current sampling circuit and output voltage sampling circuit, the output current sampling circuit: pass through ring
Current information is transferred to the AD signal processing module of number control plate A7 by shape Hall sensor H1, after operation filtering calculation processing
The output voltage sampling circuit: information conveyance is transmitted information of voltage by cyclic annular Hall sensor H2 to central processing unit
To the AD signal processing module of number control plate A7, central processing unit is conveyed to after operation filtering calculation processing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822048318.3U CN209313736U (en) | 2018-12-07 | 2018-12-07 | A kind of continuously adjustable DC power supply of the high-power electric current based on iron based nano crystal material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822048318.3U CN209313736U (en) | 2018-12-07 | 2018-12-07 | A kind of continuously adjustable DC power supply of the high-power electric current based on iron based nano crystal material |
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| CN209313736U true CN209313736U (en) | 2019-08-27 |
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| CN201822048318.3U Active CN209313736U (en) | 2018-12-07 | 2018-12-07 | A kind of continuously adjustable DC power supply of the high-power electric current based on iron based nano crystal material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138651A (en) * | 2021-03-08 | 2021-07-20 | 广东迅扬科技股份有限公司 | Computer power supply circuit |
-
2018
- 2018-12-07 CN CN201822048318.3U patent/CN209313736U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138651A (en) * | 2021-03-08 | 2021-07-20 | 广东迅扬科技股份有限公司 | Computer power supply circuit |
| CN113138651B (en) * | 2021-03-08 | 2024-04-19 | 广东迅扬科技股份有限公司 | Computer power supply circuit |
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Effective date of registration: 20201015 Address after: 215600 floor 2, building C, Dongcheng science and Technology Pioneer Park, Tangqiao town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhangjiagang Shuiyun New Energy Technology Co.,Ltd. Address before: 215500 Suzhou City, Suzhou, Jiangsu, Changshu high tech Industrial Development Zone Lake Mountain Road No. 333 Tongji Science and Technology Square 1 401 Patentee before: SUZHOU GONGYUAN AUTOMATIC CONTROL TECHNOLOGY Co.,Ltd. |
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