CN202840996U - Digital control device of inverting power supply based on digital signal processing - Google Patents
Digital control device of inverting power supply based on digital signal processing Download PDFInfo
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- CN202840996U CN202840996U CN 201120538463 CN201120538463U CN202840996U CN 202840996 U CN202840996 U CN 202840996U CN 201120538463 CN201120538463 CN 201120538463 CN 201120538463 U CN201120538463 U CN 201120538463U CN 202840996 U CN202840996 U CN 202840996U
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Abstract
The utility model provides a digital control device of an inverting power supply based on digital signal processing, and aims at providing an inverting device which has a simple circuit design, can overcome the temperature drift of the parameter of an analog circuit, is flexible to control, can easily realize an advanced control technology and has reliable performance. The device comprises a main circuit and a control circuit, wherein the main circuit comprises a rectifying unit, an inverting unit and a filtering unit which are sequentially connected; and the control unit comprises a voltage feedback unit which is connected with an output end and is used for collecting output voltage and a current feedback unit which is used for collecting current. The digital control device of the inverting power supply based on the digital signal processing also comprises a digital signal processing unit, a sine pulse width modulation (SPWM) signal module which is connected with the digital signal processing unit and an isolating drive which is used for the photoelectric isolation of the SPWM signal module of the control unit from the inverting unit of the main circuit.
Description
Technical field
The utility model relates to electronic technology field, and a kind of inverter numerical control device based on Digital Signal Processing is provided.
Background technology
Now in the market inverter all is to realize inversion by simulation control mostly, and this mode is structure relative complex and have analog circuit parameters temperature drift not only, and digital control have can simplify hardware circuit design, overcome analog circuit parameters temperature drift, control is easy to realize the advantages such as Advanced Control Techniques, dependable performance, reduction construction cycle flexibly, and the develop rapidly along with novel power transistor and digital processing unit, numerically controlled inverter is used increasingly extensive, power source development trend after becoming.
The utility model content
The purpose of this utility model be to provide a kind of simple in structure, control flexibly, the inverter numerical control device based on Digital Signal Processing of dependable performance.
The utility model is for achieving the above object by the following technical solutions:
A kind of inverter numerical control device based on Digital Signal Processing is characterized in that: comprise main circuit and control circuit, described main circuit comprises rectification unit, inversion unit and the filter unit that is linked in sequence; Described control circuit comprises the voltage feedback unit of the collection output voltage that is connected with output and gathers the current feedback unit of electric current, the isolation drive unit of the inversion unit photoelectricity isolation of the SPWM signaling module that also comprise digital signal processing unit, is connected with digital signal processing unit, the SPWM signaling module that is used for control circuit and main circuit;
Described rectification unit will be obtained alternating current from electrical network and supply with inversion unit after rectification, inversion unit is under the effect of the driving signal of SPWM signaling module output, direct current after the rectification is become the alternating current of voltage stabilization and frequency stabilization, through supply load after the filtering, feedback is given the digital signal processing unit processing behind output voltage and electric current process voltage feedback unit and the current feedback unit sampling, digital signal processing unit carries out corresponding control algolithm to sampled signal to be processed, output SPWM modulation signal so that output voltage stabilization in desired value.
Described inversion unit adopts full bridge inverter.
The MOS pipe model of described full bridge inverter selects IRFP460 as switching device.
The SPWM signaling module adopts R2110 to drive chip and produces the driving signal.
Described digital signal processing unit adopts TMS320LF2407A.
The utlity model has following beneficial effect:
The utility model is simple in structure, overcome analog circuit parameters temperature drift, control is easy to realize the advantages such as Advanced Control Techniques, dependable performance, reduction construction cycle flexibly.
Description of drawings
Fig. 1 is system construction drawing of the present utility model;
Embodiment
A kind of inverter numerical control device based on Digital Signal Processing is characterized in that: comprise main circuit and control circuit, described main circuit comprises rectification unit, inversion unit and the filter unit that is linked in sequence; Described control circuit comprises the voltage feedback unit of the collection output voltage that is connected with output and gathers the current feedback unit of electric current, the isolation drive unit of the inversion unit photoelectricity isolation of the SPWM signaling module that also comprise digital signal processing unit, is connected with digital signal processing unit, the SPWM signaling module that is used for control circuit and main circuit;
Described rectification unit will be obtained alternating current from electrical network and supply with inversion unit after rectification, inversion unit is under the effect of the driving signal of SPWM signaling module output, direct current after the rectification is become the alternating current of voltage stabilization and frequency stabilization, through supply load after the filtering, feedback is given the digital signal processing unit processing behind output voltage and electric current process voltage feedback unit and the current feedback unit sampling, digital signal processing unit is controlled processing accordingly to sampled signal, output the SPWM modulation signal so that output voltage stabilization in desired value.
Described inversion unit adopts full bridge inverter.
The MOS pipe model of described full bridge inverter selects IRFP460 as switching device.
The SPWM signaling module adopts R2110 to drive chip and produces the driving signal.
Described digital signal processing unit adopts TMS320LF2407A.
The isolation drive unit
Isolation drive unit, the basic function of drive circuit should guarantee to provide the grid lotus that needs with the switch performance that guarantees device and the isolation that realizes main circuit and control circuit to the MOSFET grid.The utility model adopts IR2110 to drive chip, and it is a kind of binary channels high pressure, high-speed driver, has the bootstrapping suspended power supply, only just can drive the power tube of two brachium pontis with one road power supply.Because IR2110 itself does not possess the effect of isolation, need to add buffer circuit at front end.This paper adopts high speed photo coupling TLP550 to do isolated component.
Claims (5)
1. inverter numerical control device based on Digital Signal Processing, it is characterized in that: comprise main circuit and control circuit, described main circuit comprises rectification unit, inversion unit and the filter unit that is linked in sequence; Described control circuit comprises the voltage feedback unit of the collection output voltage that is connected with output and gathers the current feedback unit of electric current, the isolation drive unit of the inversion unit photoelectricity isolation of the SPWM signaling module that also comprise digital signal processing unit, is connected with digital signal processing unit, the SPWM signaling module that is used for control circuit and main circuit;
Described rectification unit will be obtained alternating current from electrical network and supply with inversion unit after rectification, inversion unit is under the effect of the driving signal of SPWM signaling module output, direct current after the rectification is become the alternating current of voltage stabilization and frequency stabilization, through supply load after the filtering, feedback is given the digital signal processing unit processing behind output voltage and electric current process voltage feedback unit and the current feedback unit sampling, digital signal processing unit is controlled processing accordingly to sampled signal, output the SPWM modulation signal so that output voltage stabilization in desired value.
2. the inverter numerical control device based on Digital Signal Processing according to claim 1 is characterized in that, described inversion unit adopts full bridge inverter.
3. the inverter numerical control device based on Digital Signal Processing according to claim 2 is characterized in that, the MOS pipe model of described full bridge inverter selects IRFP460 as switching device.
4. the inverter numerical control device based on Digital Signal Processing according to claim 1 is characterized in that, the SPWM signaling module adopts R2110 to drive chip and produces the driving signal.
5. the inverter numerical control device based on Digital Signal Processing according to claim 1 is characterized in that, described digital signal processing unit adopts TMS320LF2407A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120538463 CN202840996U (en) | 2011-12-21 | 2011-12-21 | Digital control device of inverting power supply based on digital signal processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120538463 CN202840996U (en) | 2011-12-21 | 2011-12-21 | Digital control device of inverting power supply based on digital signal processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840996U true CN202840996U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120538463 Expired - Fee Related CN202840996U (en) | 2011-12-21 | 2011-12-21 | Digital control device of inverting power supply based on digital signal processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840996U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447412A (en) * | 2011-12-21 | 2012-05-09 | 成都众询科技有限公司 | Digital control device of inverting power supply based on digital signal processing |
| CN105406739A (en) * | 2015-12-02 | 2016-03-16 | 国家电网公司 | Digital type high voltage direct current power supply control system |
-
2011
- 2011-12-21 CN CN 201120538463 patent/CN202840996U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447412A (en) * | 2011-12-21 | 2012-05-09 | 成都众询科技有限公司 | Digital control device of inverting power supply based on digital signal processing |
| CN105406739A (en) * | 2015-12-02 | 2016-03-16 | 国家电网公司 | Digital type high voltage direct current power supply control system |
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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: 20130327 Termination date: 20141221 |
|
| EXPY | Termination of patent right or utility model |