CN201039018Y - Energy feedback type high-voltage frequency converter - Google Patents
Energy feedback type high-voltage frequency converter Download PDFInfo
- Publication number
- CN201039018Y CN201039018Y CNU2007201409872U CN200720140987U CN201039018Y CN 201039018 Y CN201039018 Y CN 201039018Y CN U2007201409872 U CNU2007201409872 U CN U2007201409872U CN 200720140987 U CN200720140987 U CN 200720140987U CN 201039018 Y CN201039018 Y CN 201039018Y
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- Prior art keywords
- frequency converter
- unit
- type high
- feedback type
- energy feedback
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- 239000004065 semiconductor Substances 0.000 claims abstract description 5
- 238000003801 milling Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Elevator Control (AREA)
- Ac-Ac Conversion (AREA)
Abstract
The utility model relates to a converter, especially an adopt high-speed switching power module of insulated gate semiconductor (IGBT) as the energy repayment type high-voltage inverter of machinery such as centrifuge, lifting machine, winch, belt feeder, rolling mill that is applicable to of essential element. The alternating current input of the frequency converter is sequentially connected with the rectifying unit, the filtering unit and the inverting unit through the high-voltage circuit breaker and finally output to an output end load. The IGBTs adopted by the rectifying unit and the inverting unit are directly connected in series. Because the IGBT is adopted as the main part of the frequency converter, the speed regulation range of the centrifuge, the hoister, the winch, the belt conveyor, the rolling mill and other machines adopting the frequency converter is large, the loss is small, the applicable load range is wide, forward and reverse switching is easy to realize, an automatic control system is formed, the starting current is small, and the frequency converter can be used in frequent starting and braking occasions. Meanwhile, energy is fed back through twice rectification or inversion in the frequency converter, so that electric energy is saved.
Description
Affiliated technical field
The utility model relates to a kind of frequency converter, and especially a kind of employing Iusulated gate semiconductor speed-sensitive switch power model (IGBT) is the energy feedback type high voltage converter of critical piece.
Background technology
Machineries such as centrifuge, elevator, winch, belt feeder or milling train a large amount of in the industrial production all need to carry out speed regulation.And the speed regulating device that use in the prior art have increased the complexity of system, have also caused a large amount of wastes of the energy.Therefore, people wish to adopt the ac motor speed control system to replace dc motor speed-regulating system always, and have carried out a large amount of research and developments.
Developed multiple ac motor speed control device for many years, as: stator variable voltage speed control, pole changing, slip regulating speed, electromagnetic coupler speed governing, tandem control, commutator machine speed governing etc.Though succeeding in developing of these governing systems obtained certain achievement, but still exist shortcomings such as speed adjustable range is narrow, loss is still bigger than normal, power factor is low, suitable load surface is narrow, thereby limited the application of these Alternating Current Governor Systems.
The utility model content
The purpose of this utility model is to provide a kind of speed-regulating range width, little, the suitable load of loss is wide and the energy feedback type high voltage converter of energy fast braking.
The technical solution of the utility model is achieved in that the interchange input 1 of frequency converter through primary cut-out 2 and rectification unit 3, and filter unit 4, inversion unit 5 connect in turn, output to output load 6 at last.Wherein the Iusulated gate semiconductor speed-sensitive switch power model that adopts in rectification unit 3 and the inversion unit 5 is directly series connection each other, and that rectification unit 3 adopts is pulse-width modulation circuit (PWM).
The beneficial effects of the utility model are:
Adopting IGBT is that the speed adjustable range of energy feedback type high voltage converter of critical piece is big and continuously, realizes that easily forward and backward switches and constitute automatic control system, and starting current is little, can be used for Fraquent start and fast braking occasion.
In addition, owing to make energy obtain feedback through twice rectification or inversion in the frequency converter, thus saved electric energy.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing 1 is a converter circuit schematic diagram of the present utility model.
Among the figure 1, exchange input, 2, primary cut-out, 3, rectification unit, 4, filter unit, 5, inversion unit, 6, the output load.
Embodiment
In Fig. 1, the interchange of frequency converter input 1 is through primary cut-out 2 and rectification unit 3, and filter unit 4, inversion unit 5 connect in turn, output to output load 6 at last.Wherein the Iusulated gate semiconductor speed-sensitive switch power model that adopts in rectification unit 3 and the inversion unit 5 is directly series connection each other, and that rectification unit 3 adopts is pulse-width modulation circuit (PWM).For high voltage converter of the present utility model, it exchanges input 1 is the power frequency of 3-10KV, and its output load can connect machineries such as centrifuge, elevator, winch, belt feeder or milling train.
Claims (5)
1. energy feedback type high voltage converter, comprise rectification unit (3), filter unit (4), inversion unit (5), it is characterized in that: the interchange input (1) of frequency converter is through primary cut-out (2) and rectification unit (3), filter unit (4), inversion unit (5) connects in turn, outputs to output load (6) at last.
2. energy feedback type high voltage converter according to claim 1 is characterized in that: the Iusulated gate semiconductor speed-sensitive switch power model that adopts in rectification unit (3) and the inversion unit (5) is directly to connect each other.
3. energy feedback type high voltage converter according to claim 1 and 2 is characterized in that: what interchange input (1) connect is the power frequency of 3-10KV.
4. energy feedback type high voltage converter according to claim 1 and 2 is characterized in that: output load (6) is centrifuge, elevator, winch, belt feeder or milling train.
5. energy feedback type high voltage converter according to claim 1 and 2 is characterized in that: what rectification unit (3) adopted is pulse-width modulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201409872U CN201039018Y (en) | 2007-04-03 | 2007-04-03 | Energy feedback type high-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201409872U CN201039018Y (en) | 2007-04-03 | 2007-04-03 | Energy feedback type high-voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201039018Y true CN201039018Y (en) | 2008-03-19 |
Family
ID=39211544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201409872U Expired - Lifetime CN201039018Y (en) | 2007-04-03 | 2007-04-03 | Energy feedback type high-voltage frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201039018Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834451A (en) * | 2010-05-07 | 2010-09-15 | 中国科学院电工研究所 | High-voltage back-to-back converter |
| CN102044974A (en) * | 2010-08-11 | 2011-05-04 | 江苏斯达工业科技有限公司 | Main circuit topological structure of energy feedback device |
| CN109881228A (en) * | 2019-03-27 | 2019-06-14 | 珠海市玛斯特锌镍加工有限公司 | A kind of closing process of part |
-
2007
- 2007-04-03 CN CNU2007201409872U patent/CN201039018Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834451A (en) * | 2010-05-07 | 2010-09-15 | 中国科学院电工研究所 | High-voltage back-to-back converter |
| CN102044974A (en) * | 2010-08-11 | 2011-05-04 | 江苏斯达工业科技有限公司 | Main circuit topological structure of energy feedback device |
| CN102044974B (en) * | 2010-08-11 | 2014-03-19 | 江苏斯达工业科技有限公司 | Main circuit topological structure of energy feedback device |
| CN109881228A (en) * | 2019-03-27 | 2019-06-14 | 珠海市玛斯特锌镍加工有限公司 | A kind of closing process of part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100823 Address after: 100043, 107D building, building 1, Chong Xin building, 3 West West Road, Badachu hi tech park, Beijing, Shijingshan District Patentee after: BEIJING GUODIANKANGNENG TECHNOLOGY Co.,Ltd. Address before: 154002 Jiamusi province Heilongjiang City Yonghong District 22 Committee of 4 groups Patentee before: Li Zhihong |
|
| C56 | Change in the name or address of the patentee |
Owner name: GUODIANKANGNENG TECHNOLOGY LTD. Free format text: FORMER NAME: BEIJING GUODIAN KANGNENG TECHNOLOGY CO., LTD. Owner name: GUODIANKANGNENG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUODIANKANGNENG TECHNOLOGY LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100043, 107D building, building 1, Chong Xin building, 3 West West Road, Badachu hi tech park, Beijing, Shijingshan District Patentee after: GUODIANKANGNENG TECHNOLOGY STOCK Co.,Ltd. Address before: 100043, 107D building, building 1, Chong Xin building, 3 West West Road, Badachu hi tech park, Beijing, Shijingshan District Patentee before: GUIDIANKANNENG TECHNOLOGY Co.,Ltd. Address after: 100043, 107D building, building 1, Chong Xin building, 3 West West Road, Badachu hi tech park, Beijing, Shijingshan District Patentee after: GUIDIANKANNENG TECHNOLOGY Co.,Ltd. Address before: 100043, 107D building, building 1, Chong Xin building, 3 West West Road, Badachu hi tech park, Beijing, Shijingshan District Patentee before: BEIJING GUODIANKANGNENG TECHNOLOGY Co.,Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080319 Effective date of abandoning: 20160714 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080319 Effective date of abandoning: 20160714 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |