CN204290744U - A kind of high-power flash frequency controller - Google Patents
A kind of high-power flash frequency controller Download PDFInfo
- Publication number
- CN204290744U CN204290744U CN201420823730.7U CN201420823730U CN204290744U CN 204290744 U CN204290744 U CN 204290744U CN 201420823730 U CN201420823730 U CN 201420823730U CN 204290744 U CN204290744 U CN 204290744U
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- circuit
- igbt module
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- input
- frequency controller
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Abstract
The utility model provides a kind of high-power flash frequency controller, comprise three-phase voltage input, it is characterized in that: described three-phase voltage input connects input circuit breaker, described input circuit breaker connects unidirectional half-bridge controlled rectification circuit, described unidirectional half-bridge controlled rectification circuit connects DC filter, described DC filter connects IGBT module circuit, described IGBT module circuit connection transformer, described transformer connects unidirectional voltage output, described unidirectional half-bridge controlled rectification circuit and IGBT module circuit all connection control devices.The utility model adopts processor TMS320F2812 to control, fast operation, and overall efficiency is higher, can better control output voltage; IGBT module circuit adopts the big current Infineon module of import, strengthens the reliability of system, improves 50% than domestic module life; Have input breaker protection, have overload, short circuit, electrical network exception etc. error protection and alarm function.
Description
Technical field
The utility model relates to frequency-variable controller field, specifically, relates to a kind of high-power flash frequency controller.
Background technology
Current flash welder is powered and is taken from two-phase 380V voltage in civil power three-phase voltage, and welding machine operationally electric current can be very large, supply power voltage can be dragged down, thus two-phase in the voltage of three-phase mains is dragged down, affect other equipment and normally run, and so very not energy-conservation.Along with the fast development of power technology, increasing flash welder equipment is all at energy-saving and emission-reduction future development at present, is also an emphasis of enterprise development in the future.This is the deficiencies in the prior art part.
Summary of the invention:
The technical problems to be solved in the utility model is to provide a kind of high-power flash frequency controller, overcomes electrical network three-phase imbalance phenomenon, reduces the harmonic pollution to electrical network, saves electric energy.
The utility model adopts following technical scheme to realize goal of the invention:
A kind of high-power flash frequency controller, comprise three-phase voltage input, it is characterized in that: described three-phase voltage input connects input circuit breaker, described input circuit breaker connects unidirectional half-bridge controlled rectification circuit, described unidirectional half-bridge controlled rectification circuit connects DC filter, described DC filter connects IGBT module circuit, described IGBT module circuit connection transformer, described transformer connects unidirectional voltage output, described unidirectional half-bridge controlled rectification circuit and IGBT module circuit all connection control devices.
As the further restriction to the technical program; described control device comprises master control borad, drive plate and peripheral board; described master control borad is provided with processor TMS320F2812; described peripheral board is provided with the power circuit, analog data acquisition circuit, PWM output circuit and the communicating circuit that are connected with processor TMS320F2812 respectively; described drive plate is provided with IGBT module drive circuit; drive singal amplification for master control borad and peripheral board being sent drives IGBT module circuit, also can protect IGBT module circuit simultaneously.
As the further restriction to the technical program, described communicating circuit adopts MAX485 level transferring chip and optical coupler.
As the further restriction to the technical program, described IGBT module circuit adopts big current Infineon module.
Compared with prior art, advantage of the present utility model and good effect are: the utility model adopts processor TMS320F2812 to control, fast operation, and overall efficiency is higher, can better control output voltage; IGBT module circuit adopts the big current Infineon module of import, strengthens the reliability of system, improves 50% than domestic module life; Have input breaker protection, have overload, short circuit, electrical network exception etc. error protection and alarm function.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is control device circuit theory diagrams of the present utility model.
In figure, 1, three-phase voltage input, 2, circuit breaker, 3, unidirectional half-bridge controlled rectification circuit, 4, DC filter, 5, IGBT module circuit, 6, control device, 7, transformer, 8, unidirectional voltage output.
Embodiment:
Below in conjunction with embodiment, further illustrate the utility model.
See Fig. 1 and Fig. 2, the utility model comprises three-phase voltage input, described three-phase voltage input connects input circuit breaker, described input circuit breaker connects unidirectional half-bridge controlled rectification circuit, described unidirectional half-bridge controlled rectification circuit connects DC filter, and described DC filter connects IGBT module circuit, described IGBT module circuit connection transformer, described transformer connects unidirectional voltage output, described unidirectional half-bridge controlled rectification circuit and IGBT module circuit all connection control devices.Described IGBT module circuit adopts big current Infineon module.
Described control device comprises master control borad, drive plate and peripheral board; described master control borad is provided with processor TMS320F2812; maximum operating frequency 150M; described peripheral board is provided with the power circuit, analog data acquisition circuit, PWM output circuit and the communicating circuit that are connected with processor TMS320F2812 respectively; described drive plate is provided with IGBT module drive circuit; drive singal amplification for master control borad and peripheral board being sent drives IGBT module circuit, also can protect IGBT module circuit simultaneously.Described power circuit, analog data acquisition circuit, PWM output circuit, communicating circuit and IGBT module drive circuit are all adopt prior art to make, and do not repeat them here.
Processor TMS320F2812 exports four road SPWM through program, processor TMS320F2812, by regulating four road SPWM signals, outputting to drive plate through peripheral circuit again drives IGBT module circuit to realize the adjustable of output voltage and frequency again, by analog data acquisition circuit in peripheral board constantly to sampling and the calculating of the measurement data such as output voltage, output current, active power, ensure the control output voltage frequency that processor TMS320F2812 is stable.
Described communicating circuit adopts MAX485 level transferring chip and optical coupler.Realized and the communication of host computer by MAX485 level transferring chip, and use optical coupler to isolate, power supply the is possessed ability of Long-distance Control and monitoring, communication strong interference immunity, the accurate display of guarantee controller information.
Three-phase voltage input opens DC filter filtering through circuit breaker to the rectification of three-phase half-controlled rectifier bridge is simultaneously soft, obtains more stably steadily direct voltage.Input uses three-phase half-controlled rectifier greatly can improve DC waveform.Inverter selects IGBT module circuit as switch element, Sine Wave Pulse Width Modulation mode (SPWM) is adopted to control IGBT module circuit, be the interchange that pulse-width modulation exports by steady DC converting, this interchange fundamental frequency is required power supply output frequency.Be output into sine voltage through transformer after the pulse-width modulation that IGBT module circuit exports and carry out Flash Butt Welding.
Display use 7 cun of touch-screens are connected with processor device communication interface and operate, the operation of touch-screen display interface hommization, menu in Chinese, can the operating state of every service data of display device, real time fail data, historical failure data and equipment; Easy to operate, quick, good looking appearance.
Claims (4)
1. a high-power flash frequency controller, comprise three-phase voltage input, it is characterized in that: described three-phase voltage input connects input circuit breaker, described input circuit breaker connects unidirectional half-bridge controlled rectification circuit, described unidirectional half-bridge controlled rectification circuit connects DC filter, described DC filter connects IGBT module circuit, described IGBT module circuit connection transformer, described transformer connects unidirectional voltage output, described unidirectional half-bridge controlled rectification circuit and IGBT module circuit all connection control devices.
2. high-power flash frequency controller according to claim 1; it is characterized in that: described control device comprises master control borad, drive plate and peripheral board; described master control borad is provided with processor TMS320F2812; described peripheral board is provided with the power circuit, analog data acquisition circuit, PWM output circuit and the communicating circuit that are connected with processor TMS320F2812 respectively; described drive plate is provided with IGBT module drive circuit; drive singal amplification for master control borad and peripheral board being sent drives IGBT module circuit, also can protect IGBT module circuit simultaneously.
3. high-power flash frequency controller according to claim 2, is characterized in that: described communicating circuit adopts MAX485 level transferring chip and optical coupler.
4. high-power flash frequency controller according to claim 1, is characterized in that: described IGBT module circuit adopts big current Infineon module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823730.7U CN204290744U (en) | 2014-12-24 | 2014-12-24 | A kind of high-power flash frequency controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823730.7U CN204290744U (en) | 2014-12-24 | 2014-12-24 | A kind of high-power flash frequency controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204290744U true CN204290744U (en) | 2015-04-22 |
Family
ID=52873871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420823730.7U Expired - Fee Related CN204290744U (en) | 2014-12-24 | 2014-12-24 | A kind of high-power flash frequency controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204290744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072930A (en) * | 2020-08-18 | 2020-12-11 | 邵阳学院 | Safety power supply adopting high-frequency isolation |
-
2014
- 2014-12-24 CN CN201420823730.7U patent/CN204290744U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072930A (en) * | 2020-08-18 | 2020-12-11 | 邵阳学院 | Safety power supply adopting high-frequency isolation |
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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: 20150422 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |