CN205142017U - Invertion power supply control system based on DSP - Google Patents
Invertion power supply control system based on DSP Download PDFInfo
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- CN205142017U CN205142017U CN201520913405.4U CN201520913405U CN205142017U CN 205142017 U CN205142017 U CN 205142017U CN 201520913405 U CN201520913405 U CN 201520913405U CN 205142017 U CN205142017 U CN 205142017U
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Abstract
The utility model discloses an invertion power supply control system based on DSP, including input filter unit, rectifier unit, contravariant bridge, drive circuit, transformer T, DSP controller, interface module, touch -sensitive screen and voltage sample module, drive circuit, interface module, temperature sampling circuit, current sampling circuit and voltage sample module are connected respectively to the DSP controller, the 220V alternating current is connected to input filter unit one end, and rectifier unit is still connected to the input filter unit, and rectifier unit still connects the contravariant bridge, and the drive circuit other end and transformer T are still connected respectively to the contravariant bridge, and transformer T still connects output filtering unit, and output, the temperature sampling circuit other end, the current sampling circuit other end and the voltage sample module other end are still connected respectively to output filtering unit. The utility model discloses choose for use digital signal processor TMS320F2812 as the main control unit of power, designed a simple structure, the convenient control system of extension, realized invertion power supply's accurate control.
Description
Technical field
The utility model relates to a kind of power control system, specifically a kind of inverter control system based on DSP.
Background technology
Along with the continuous progress of modern power electronics technology and the development of information technology, inverter is more and more widely used in the numerous areas such as communication, navigation, aviation, medical treatment, military affairs, and the performance of user to inverter there has also been more and more higher requirement simultaneously.As the core of inverter, the control system of inverter plays a part extremely crucial to raising power source performance.The controller of inverter experienced by the development from analog controller to digitial controller, and digitial controller, compared with analog controller, has the advantages such as control precision is high, parameter adjustment convenient, change control strategy is flexible.Especially along with the appearance controlling special DSP, make the control technology of inverter towards future development that is totally digitilized, intelligent and networking.
Summary of the invention
The purpose of this utility model is to provide a kind of inverter control system based on DSP, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of inverter control system based on DSP, comprise input filter unit, rectification unit, inverter bridge, drive circuit, transformer T, dsp controller, interface module, touch-screen and voltage sample module, described dsp controller connects drive circuit respectively, interface module, temperature sampling circuit, current sampling circuit and voltage sample module, described input filter unit one end connects 220V alternating current, input filter unit also connects rectification unit, rectification unit also connects inverter bridge, inverter bridge also connects the drive circuit other end and transformer T respectively, transformer T also connects output filtering unit, output filtering unit also connects output respectively, the temperature sampling circuit other end, the current sampling circuit other end and the voltage sample module other end, described voltage sample module comprises resistance R1, transformer T, electric capacity C1 and amplifier U1, transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 one end is contact resistance R1 and resistance R2 respectively, the resistance R1 other end is contact resistance R3 and the transformer T coil L2 other end respectively, the resistance R3 other end connects amplifier U1 in-phase end respectively, resistance R4 and electric capacity C2, the electric capacity C2 other end contact resistance R4 other end ground connection, the described resistance R2 other end is contact resistance R5 respectively, amplifier U1 end of oppisite phase and electric capacity C1, the electric capacity C1 other end is the contact resistance R5 other end respectively, resistance R6 and amplifier U1 output, the resistance R6 other end connects output end vo respectively, diode D1 negative pole and electric capacity C3, the electric capacity C3 other end connects diode D1 positive pole and ground connection, described dsp controller adopts TMS320F2812.
As the utility model further scheme: described amplifier U1 adopts LM324.
Compared with prior art, the beneficial effects of the utility model are: the utility model is based on the inverter control system of DSP, select digital signal processor TMS320F2812 as the master controller of power supply, devise a kind of structure simple, expand control system easily, achieve the accurate control of inverter.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of the inverter control system based on DSP;
Fig. 2 is the circuit diagram of voltage sample module in the inverter control system based on DSP.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of inverter control system based on DSP, comprise input filter unit, rectification unit, inverter bridge, drive circuit, transformer T, dsp controller, interface module, touch-screen and voltage sample module, dsp controller connects drive circuit respectively, interface module, temperature sampling circuit, current sampling circuit and voltage sample module, described input filter unit one end connects 220V alternating current, input filter unit also connects rectification unit, rectification unit also connects inverter bridge, inverter bridge also connects the drive circuit other end and transformer T respectively, transformer T also connects output filtering unit, output filtering unit also connects output respectively, the temperature sampling circuit other end, the current sampling circuit other end and the voltage sample module other end, described voltage sample module comprises resistance R1, transformer T, electric capacity C1 and amplifier U1, transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 one end is contact resistance R1 and resistance R2 respectively, the resistance R1 other end is contact resistance R3 and the transformer T coil L2 other end respectively, the resistance R3 other end connects amplifier U1 in-phase end respectively, resistance R4 and electric capacity C2, the electric capacity C2 other end contact resistance R4 other end ground connection, the described resistance R2 other end is contact resistance R5 respectively, amplifier U1 end of oppisite phase and electric capacity C1, the electric capacity C1 other end is the contact resistance R5 other end respectively, resistance R6 and amplifier U1 output, the resistance R6 other end connects output end vo respectively, diode D1 negative pole and electric capacity C3, the electric capacity C3 other end connects diode D1 positive pole and ground connection, described dsp controller adopts TMS320F2812.
Amplifier U1 adopts LM324.
Operation principle of the present utility model is: refer to Fig. 1, main circuit adopts AC-DC-AC structure, comprise rectification unit, input filter unit, inverter bridge, transformer T and output filtering unit, hand over-straight part by 50Hz220V electric main through input filter unit, steady direct current is become after rectification unit, inverter bridge selects IGBT as switching device, utilize the advantage that IGBT switching frequency is higher, dsp controller adopts sinusoidal pulse width modulation mode to control inverter, it is the interchange that pulse-width modulation exports by steady DC converting, export SPWM wave amplitude constant, width is by sinusoidal rule change, the alternating current that inverter bridge exports is after transformer T and output filtering unit filtering, obtain pure sine wave alternating current.
Refer to Fig. 2, the sinusoidal wave feedback signal sent here from transformer T secondary is sampled through transformer T, and after dividing potential drop and bias treatment, the signal converting 0 ~ 3.3V to sends into the A/D conversion mouth of dsp controller.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (2)
1. the inverter control system based on DSP, comprise input filter unit, rectification unit, inverter bridge, drive circuit, transformer T, dsp controller, interface module, touch-screen and voltage sample module, it is characterized in that, described dsp controller connects drive circuit respectively, interface module, temperature sampling circuit, current sampling circuit and voltage sample module, described input filter unit one end connects 220V alternating current, input filter unit also connects rectification unit, rectification unit also connects inverter bridge, inverter bridge also connects the drive circuit other end and transformer T respectively, transformer T also connects output filtering unit, output filtering unit also connects output respectively, the temperature sampling circuit other end, the current sampling circuit other end and the voltage sample module other end, described voltage sample module comprises resistance R1, transformer T, electric capacity C1 and amplifier U1, transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 one end is contact resistance R1 and resistance R2 respectively, the resistance R1 other end is contact resistance R3 and the transformer T coil L2 other end respectively, the resistance R3 other end connects amplifier U1 in-phase end respectively, resistance R4 and electric capacity C2, the electric capacity C2 other end contact resistance R4 other end ground connection, the described resistance R2 other end is contact resistance R5 respectively, amplifier U1 end of oppisite phase and electric capacity C1, the electric capacity C1 other end is the contact resistance R5 other end respectively, resistance R6 and amplifier U1 output, the resistance R6 other end connects output end vo respectively, diode D1 negative pole and electric capacity C3, the electric capacity C3 other end connects diode D1 positive pole and ground connection, described dsp controller adopts TMS320F2812.
2. the inverter control system based on DSP according to claim 1, is characterized in that, described amplifier U1 adopts LM324.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520913405.4U CN205142017U (en) | 2015-11-17 | 2015-11-17 | Invertion power supply control system based on DSP |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520913405.4U CN205142017U (en) | 2015-11-17 | 2015-11-17 | Invertion power supply control system based on DSP |
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| CN205142017U true CN205142017U (en) | 2016-04-06 |
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| CN201520913405.4U Expired - Fee Related CN205142017U (en) | 2015-11-17 | 2015-11-17 | Invertion power supply control system based on DSP |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370444A (en) * | 2016-09-22 | 2017-11-21 | 淮阴师范学院 | A kind of servomotor energy-saving control system |
| CN107493020A (en) * | 2017-10-21 | 2017-12-19 | 河南寰球航空装备科技有限公司 | A kind of robot power supply control system |
| CN107689762A (en) * | 2017-10-12 | 2018-02-13 | 中山市锐钜智能电子有限公司 | Ensure the circuit and method of AC induction motor rotating speed when a kind of voltage reduces |
-
2015
- 2015-11-17 CN CN201520913405.4U patent/CN205142017U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370444A (en) * | 2016-09-22 | 2017-11-21 | 淮阴师范学院 | A kind of servomotor energy-saving control system |
| CN107689762A (en) * | 2017-10-12 | 2018-02-13 | 中山市锐钜智能电子有限公司 | Ensure the circuit and method of AC induction motor rotating speed when a kind of voltage reduces |
| CN107689762B (en) * | 2017-10-12 | 2024-03-12 | 中山市锐钜智能电子有限公司 | Circuit and method for guaranteeing rotating speed of alternating current asynchronous motor when voltage is reduced |
| CN107493020A (en) * | 2017-10-21 | 2017-12-19 | 河南寰球航空装备科技有限公司 | A kind of robot power supply control system |
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| 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: 20160406 Termination date: 20201117 |