CN2476135Y - Three phase four wire system inverter - Google Patents
Three phase four wire system inverter Download PDFInfo
- Publication number
- CN2476135Y CN2476135Y CN 01214433 CN01214433U CN2476135Y CN 2476135 Y CN2476135 Y CN 2476135Y CN 01214433 CN01214433 CN 01214433 CN 01214433 U CN01214433 U CN 01214433U CN 2476135 Y CN2476135 Y CN 2476135Y
- Authority
- CN
- China
- Prior art keywords
- phase
- inverter
- circuit
- filter circuit
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a three phase four wire inverter system, which consists of a battery, a direct current filter circuit, a three-phase inverter circuit and an alternating current filter circuit. The direct current filter circuit consists of two electrolytic capacitors in series; the alternating current filter circuit consists of three inductors and three non-polar capacitors; wherein, the input plus end of the three-phase inverter circuit and the plus end of the direct current filter circuit are both connected with the plus end of the battery; one ends of the three inductors are respectively and correspondingly connected with three output ends of the three-phase inverter circuit; one ends of the three non-polar capacitors are respectively and correspondingly connected with the other ends of the three inductors; and the other ends of the three non-polar capacitors are all connected with the serial contacts of two inductors and capacitors. The utility model is in particular suitable for the occasions such as aircrafts where the weight and size requirements are very strict.
Description
The utility model relates to the inverter in the power electronic technology.
Sinusoidal wave inverter is widely used in every profession and trade such as military, civilian.Traditional three-phase inversion device has a transformer, provides the output of three-phase and four-line voltage by this transformer.Its shortcoming is that volume is big, Heavy Weight, cost height, efficient is low, installation is difficult.The particularly raising day by day of offset of sinusoidal ripple inverter specific volume power density requirements in civil aviaton and military field, more and more this requirement of incompatibility of traditional inverter.
The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, and the three-phase four-wire system that a kind of volume is little, in light weight, specific volume power density is big inverter is provided.
The three-phase four-wire system inverter of realizing the utility model purpose is made of storage battery, DC filtering circuit, three-phase inverting circuit and ac filter circuit, and described DC filtering circuit is by two electrochemical capacitor C
4, C
5Series connection constitutes, and three-phase inverting circuit is made of the IGBT three-phase full-bridge inverter of standard, and ac filter circuit is by three inductance L
1, L
2, L
3With three polarity free capacitor C
1, C
2, C
3Form, wherein, the input anode of three-phase full-bridge inverter and the anode of DC filtering circuit are connected to the anode of storage battery E, three inductance L altogether
1, L
2, L
3Corresponding respectively three the output j that connect three-phase full-bridge inverter of an end
1, j
2, j
3, three polarity free capacitor C
1, C
2, C
3An end respectively correspondence connect three inductance L
1, L
2, L
3The other end constitute output U, V, the W of inverter, three polarity free capacitor C
1, C
2, C
3The other end be connected to the series connection contact j of two inductance capacitances altogether
4Constitute the central point output O of inverter.Rule, employing SPWM modulating wave according to AC sine wave during work drive opening and turn-offing of IGBT, output SPWM voltage waveform, and the Filtering Processing of the ac filter circuit that process LC forms is promptly exported the three-phase four-wire system sinusoidal voltage.
The utility model compared with prior art has following advantage:
1. saved transformer, thereby volume and weight reducing greatly all, all only is original 1/tens;
2. because the weight of transformer shared ratio in former inverter is very big, therefore weight of the present utility model is compared under equal power capacity condition with traditional inverter, has very big advantage.Be particularly suitable for aircraft, train, steamer so that aircraft carrier etc. use weight and the very strict occasion of volume requirement;
3. reduced the power transfer link, reduced transition loss, efficient is higher;
4. make easily, cost is low, and is easy for installation.
Provide embodiment below in conjunction with accompanying drawing.
Fig. 1 structured flowchart of the present utility model
Fig. 2 electrical block diagram of the present utility model
Consult Fig. 1～2, three-phase four-wire system inverter of the present utility model is made of storage battery, DC filtering circuit, three-phase inverting circuit and ac filter circuit, and described DC filtering circuit is by two electrochemical capacitor C
4, C
5Series connection constitutes, and three-phase inverting circuit is made of the IGBT three-phase full-bridge inverter of standard, and ac filter circuit is by three inductance L
1, L
2, L
3With three polarity free capacitor C
1, C
2, C
3Form, wherein, the input anode of three-phase full-bridge inverter and the anode of DC filtering circuit are connected to the anode of storage battery E, three inductance L altogether
1, L
2, L
3Corresponding respectively three the output j that connect three-phase full-bridge inverter of an end
1, j
2, j
3, three polarity free capacitor C
1, C
2, C
3An end respectively correspondence connect three inductance L
1, L
2, L
3The other end constitute output U, V, the W of inverter, three polarity free capacitor C
1, C
2, C
3The other end be connected to the series connection contact j of two inductance capacitances altogether
4Constitute the central point output O of inverter.
Claims (1)
1. a three-phase and four-line inverter is characterized in that described three-phase and four-line inverter is made of storage battery, DC filtering circuit, three-phase inverting circuit and ac filter circuit, and described DC filtering circuit is by two electrochemical capacitor C
4, C
5Series connection constitutes, and three-phase inverting circuit is made of the IGBT three-phase full-bridge inverter of standard, and ac filter circuit is by three inductance L
1, L
2, L
3With three polarity free capacitor C
1, C
2, C
3Form, wherein, the input anode of three-phase full-bridge inverter and the anode of DC filtering circuit are connected to the anode of storage battery E, three inductance L altogether
1, L
2, L
3Corresponding respectively three the output j that connect three-phase full-bridge inverter of an end
1, j
2, j
3, three polarity free capacitor C
1, C
2, C
3An end respectively correspondence connect three inductance L
1, L
2, L
3The other end constitute output U, V, the W of inverter, three polarity free capacitor C
1, C
2, C
3The other end be connected to the series connection contact j of two inductance capacitances altogether
4Constitute the central point output O of inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214433 CN2476135Y (en) | 2001-03-13 | 2001-03-13 | Three phase four wire system inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214433 CN2476135Y (en) | 2001-03-13 | 2001-03-13 | Three phase four wire system inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2476135Y true CN2476135Y (en) | 2002-02-06 |
Family
ID=33633200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01214433 Expired - Fee Related CN2476135Y (en) | 2001-03-13 | 2001-03-13 | Three phase four wire system inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2476135Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915738A (en) * | 2013-01-07 | 2014-07-09 | 永济新时速电机电器有限责任公司 | Composite busbar and three-phase inverter circuit |
-
2001
- 2001-03-13 CN CN 01214433 patent/CN2476135Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915738A (en) * | 2013-01-07 | 2014-07-09 | 永济新时速电机电器有限责任公司 | Composite busbar and three-phase inverter circuit |
| CN103915738B (en) * | 2013-01-07 | 2016-05-04 | 永济新时速电机电器有限责任公司 | Composite bus bar and three-phase inverting circuit |
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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 |