CN2930055Y - 400HZ medium frequency uninterrupted power source - Google Patents
400HZ medium frequency uninterrupted power source Download PDFInfo
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- CN2930055Y CN2930055Y CNU2006200871535U CN200620087153U CN2930055Y CN 2930055 Y CN2930055 Y CN 2930055Y CN U2006200871535 U CNU2006200871535 U CN U2006200871535U CN 200620087153 U CN200620087153 U CN 200620087153U CN 2930055 Y CN2930055 Y CN 2930055Y
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- power supply
- diode
- spwm inverter
- digital signal
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Abstract
A 400Hz middle frequency uninterrupted power supply belongs to the middle frequency power supply technique and comprises a current rectifier, a diode connected with the current rectifier, an accumulator assembly connected with the diode, a SPWM inverter connected with the current rectifier, an insulating transformer connected with the SPWM inverter and a DSP digital signal processing device with the wave filter and the input end connected with the commercial power and the diode and the output end connected with the SPWM inverter. The main power switch component of the SPWM inverter adopts the high power IGBT tube. The DSP digital signal processing device is 16 bit. The 400Hz middle frequency uninterrupted power supply takes DSP as the controller and IGBT as the main power switch component, has the characteristics of small volume, low cost, precious frequency, high stability and reliability, strong load adaptation and particularly applicability for inductive load and can be utilized in the field of industry, national defense, navigation, aviation or the like.
Description
Technical field
The utility model belongs to the intermediate frequency power supply technical field, more particularly relates to the design of 400HZ intermediate frequency uninterrupted power supply.
Background technology
The 400Hz intermediate frequency power supply is used very extensive in fields such as industry, national defence, navigation, aviation.At present, the 400Hz intermediate frequency electric power system of China mostly is the medium frequency equipment group greatly.Its shortcoming is that volume is big, noise is high, efficient is low, poor reliability, cost height, load characteristic are relatively poor, especially is not suitable for inductive load.The IGBT that has has for this reason researched and developed DSP control is the sinusoidal wave intermediate frequency uninterrupted power supply of 400Hz of primary power switch device.It has, and volume is little, and cost is low, frequency accuracy and stability height, stability, good reliability, the characteristics that workload-adaptability is strong.Traditional
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of 400HZ intermediate frequency uninterrupted power supply is provided.It is controlled with DSP, is primary power switch device with IGBT, and volume is little, cost is low, frequency accuracy and stability height, stability, good reliability, and workload-adaptability is strong.Be particularly suitable for inductive load simultaneously.
In order to achieve the above object, the utility model is connected on the electric main.Comprise the rectifier, the diode that is connected with rectifier that are connected on the civil power, be connected the batteries on the diode, SPWM (sinusoidal pulse width modulation) inverter that is connected with rectifier, the isolating transformer that is connected with the SPWM inverter and filter, input are connected with diode with civil power respectively and output is connected with above-mentioned SPWM inverter DSP digital signal processor.This power supply is by the output output of isolating transformer and filter, and this output also feeds back and is connected to the DSP digital signal processor.
The primary power switch device of SPWM inverter adopts high-power IGBT insulated gate bipolar transistor npn npn.The DSP digital signal processor is 16.
Primary power switch device adopts IGBT, its the control grid-control field-effect transistor that very insulate, output stage is a bipolar power transistor, has high input impedance, high switching frequency, very little driving power, on-state voltage drop is little, overload capacity is strong, thereby makes inverter have the strong characteristics of load capacity.
Control circuit adopts 16 bit digital signal processors (DSP) as the control core, is used for control and data processing.Adopt FUZZY ALGORITHMS FOR CONTROL on the control algolithm, produce the 20KHzSPWM signal, be used to drive the IGBT pipe.Move reliably in order to guarantee system safety, give full play to the power of DSP, to the Primary Component of system and for example overvoltage of key parameter, under-voltage, overcurrent, overload, output short-circuit, overheated etc. monitor in real time, realization is to the self diagnosis of system works performance, and fault is carried out corresponding sound and light alarm.Because the utilization system that makes of DSP has corresponding fast, stable, highly reliable advantage.
This supply unit inverter adopts isolated design, has output isolation transformer, and load and input power supply are isolated on electric.Therefore, can eliminate the adverse effect of input power supply to load.
(it is poor mainly to show as impact resistance for the shortcoming that overcomes the operation of traditional 400Hz intermediate frequency power supply incompatibility inductive load, waveform is bad), this supply unit has carried out meticulous design to the output filtering system, enables to adapt to the inductive load operation of frequent starting.
Task of the present utility model comes to this and finishes.
The utility model is controlled with DSP, is primary power switch device with IGBT.In light weight, volume is little, cost is low, frequency accuracy and stability height, noise is little during work, reliability is high, workload-adaptability is strong, and is easy to maintenance.Be particularly suitable for inductive load simultaneously.Can be widely used in the fields such as industry, national defence, aviation, boats and ships.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model.
Embodiment
Embodiment 1.A kind of 400HZ intermediate frequency uninterrupted power supply, as shown in Figure 1.It is connected on the electric main.Comprise the rectifier AC/DC that is connected on the civil power, the diode (1) that is connected with rectifier AC/DC, be connected the batteries (2) on the diode (1), the SPWM inverter that is connected with rectifier AC/DC, the isolating transformer that is connected with the SPWM inverter and filter, input respectively with civil power is connected with diode (1) and output is connected with above-mentioned SPWM inverter DSP digital signal processor.Present embodiment is by the output output of isolating transformer and filter, and this output also feeds back and is connected to the DSP digital signal processor.The primary power switch device of SPWM inverter adopts high-power IGBT insulated gate bipolar transistor npn npn.The DSP digital signal processor is 16.
Claims (3)
1. 400HZ intermediate frequency uninterrupted power supply, be connected on the electric main, it is characterized in that it comprises the rectifier that is connected on the civil power, the diode that is connected with rectifier, be connected the batteries on the diode, the SPWM inverter that is connected with rectifier, the isolating transformer and the filter that are connected with the SPWM inverter, the DSP digital signal processor that input is connected with diode with civil power respectively and output is connected with above-mentioned SPWM inverter, this power supply is by the output output of isolating transformer and filter, and this output also feeds back and is connected to the DSP digital signal processor.
2. according to the described 400HZ intermediate frequency of claim 1 uninterrupted power supply, it is characterized in that the primary power switch device of said SPWM inverter adopts high-power IGBT insulated gate bipolar transistor npn npn.
3. according to claim 1 or 2 described 400HZ intermediate frequency uninterrupted power supplys, it is characterized in that said DSP digital signal processor is 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200871535U CN2930055Y (en) | 2006-07-20 | 2006-07-20 | 400HZ medium frequency uninterrupted power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200871535U CN2930055Y (en) | 2006-07-20 | 2006-07-20 | 400HZ medium frequency uninterrupted power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2930055Y true CN2930055Y (en) | 2007-08-01 |
Family
ID=38308427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200871535U Expired - Fee Related CN2930055Y (en) | 2006-07-20 | 2006-07-20 | 400HZ medium frequency uninterrupted power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2930055Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811411A (en) * | 2016-05-06 | 2016-07-27 | 郑尧 | Distributed solar energy medium-frequency power supply device |
| WO2017049819A1 (en) * | 2015-09-23 | 2017-03-30 | 梁德新 | Switching power supply circuit having standby battery for power supply |
-
2006
- 2006-07-20 CN CNU2006200871535U patent/CN2930055Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017049819A1 (en) * | 2015-09-23 | 2017-03-30 | 梁德新 | Switching power supply circuit having standby battery for power supply |
| CN105811411A (en) * | 2016-05-06 | 2016-07-27 | 郑尧 | Distributed solar energy medium-frequency power supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |