CN102201737B - High-order energy gaining voltage conversion circuit - Google Patents
High-order energy gaining voltage conversion circuit Download PDFInfo
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- CN102201737B CN102201737B CN201110066786.3A CN201110066786A CN102201737B CN 102201737 B CN102201737 B CN 102201737B CN 201110066786 A CN201110066786 A CN 201110066786A CN 102201737 B CN102201737 B CN 102201737B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 239000003990 capacitor Substances 0.000 claims abstract description 6
- 239000004065 semiconductor Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005381 potential energy Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention relates to a high-order energy gaining voltage conversion circuit, which consists of six bridge arms of three phases. Upper and lower bridge arms are connected by bridge arm reactors. Each bridge arm is formed by concatenating high voltage power modules. The high voltage power module comprises a high voltage module, a capacitor and high-order energy gaining equipment which are sequentially connected in parallel. The high voltage power modules of the high-order energy gaining voltage conversion circuit provided by the invention gain energy from high order, and realize wide-range voltage input.
Description
Technical field
The present invention relates to a kind of voltage conversion circuit, specifically relate to a kind of high-order energy gaining voltage conversion circuit.
Background technology
The current energy-provision way for different converter valve drive plate mainly contains low force feed energy and high pressure gets energy two classes.
For in low force feed energy most widely used be by high-frequency pulse transformer, earthy energy is delivered to that the electromagnetism be positioned on high-tension side drive plate send can mode, this mode needs highly reliable voltage quarantine measures, there is the problem such as exterior insulation and structure installment, therefore the volume of equipment and cost are all very large, and one is for the relatively low occasion of voltage.
Getting in energy common are for high pressure utilizes special current transformer (CT) from induced voltage on circuit, by being supplied to drive plate after process, is characterized in that having electric current to flow through Shi Caineng in circuit when switching device is opened obtains energy.This mode is often applied to the series valve that thyristor is switching device, does not need to turn off energy requirement because thyristor is half control device.And for turning on and off the full-controlled switch device all needing energy, this mode is difficult to the requirement meeting the high-power energy supply of power model.
It is get energy element circuit for driving energy supply by the Resistor-Capacitor Unit of switching device parallel connection in conjunction with certain that high pressure gets another common form in energy.This energy taking device utilizes when rising edge appears in switching device both end voltage to getting energy capacitor charging, till charging meets the demands.It is mainly used in the series valve that thyristor is switching device.And shorter for the switching device turn off process of high frequency, if adopt this getting mode to need a lot of cycles just can get the energy of requirement, power model can not be met and continue high-power energy supply requirement.
Seen conventional switching power supply is there are no the report being applied to high potential energy collecting at present, and its input voltage is generally the direct voltage within 220V interchange, 380V interchange or 100V, cannot meet the requirement of high-power module high voltage.In addition, the input voltage range of conventional switching power supply is 3 times to the maximum, cannot meet the requirement of power model draw-out power supply wide range input.
Summary of the invention
The object of this invention is to provide and a kind ofly realize the high-order energy gaining voltage conversion circuit of wide range input for high-power module from high potential energy collecting.
Object of the present invention adopts following technical proposals to be achieved:
A kind of high-order energy gaining voltage conversion circuit, its improvements are: described circuit is made up of three-phase six brachium pontis, and described upper and lower bridge arm is coupled together by brachium pontis reactor; Described each brachium pontis is formed by high-voltage power module-cascade; Described high-voltage power module comprises high-pressure modular, electric capacity and a high position and gets energy equipment; It is in parallel successively that described high-pressure modular, electric capacity and a high position get energy equipment.
The preferred technical scheme of one provided by the invention is: described high-pressure modular comprises IGBT controller, all-controlling power electronics device IGBT, diode D, proterctive equipment and control appliance; Described IGBT controller comprises IGBT1 controller and IGBT2 controller; Described all-controlling power electronics device IGBT comprises IGBT1 and IGBT2; Described diode D comprises D3 and D4.
Provided by the invention second preferred technical scheme is: described IGBT1 and diode D3 inverse parallel composition turn-off thyristor G1; Described IGBT2 and diode D4 inverse parallel composition turn-off thyristor G2; Described control appliance, IGBT1 controller and turn-off thyristor G1 connect successively; Described proterctive equipment, IGBT2 controller and turn-off thyristor G2 connect successively; Described control appliance is connected with described proterctive equipment; Described IGBT1 controller is in parallel with IGBT2 controller; Described turn-off thyristor G1 and turn-off thyristor G2 connects.
Provided by the invention 3rd preferred technical scheme is: a described high position is got and can be comprised snubber circuit and switching power circuit by equipment; Described snubber circuit comprises resistance R1, electric capacity C2 and diode D2; Connect with diode D2 after described resistance R1 and electric capacity C2 parallel connection; Described switching power circuit comprises transformer T1, inductance L
lT, diode D1, electric capacity C1, control chip and metal-oxide-semiconductor Tr; A winding of described transformer T1 and inductance L
lTseries connection; Secondary winding, the diode D2 and electric capacity C1 of described transformer T1 are connected in series; Described control chip is connected with the grid of metal-oxide-semiconductor Tr; The drain electrode of described metal-oxide-semiconductor Tr respectively with inductance L
lTbe connected with the positive pole of snubber circuit diode D2.
Provided by the invention 4th preferred technical scheme is: a described high position is got and can be called voltage conversion circuit by equipment, the single switch flyback formula structure that described voltage conversion circuit adopts.
Compared with prior art, the beneficial effect that the present invention reaches is:
1, high-order energy gaining voltage conversion circuit provided by the invention is from power model high potential energy collecting, avoids high-strength insulating design, simplifies the structure of application system;
2, high-order energy gaining voltage conversion circuit provided by the invention adopts high-voltage MOS pipe to achieve high input voltage Direct Transform, and structure is simple, control is convenient;
3, high-order energy gaining voltage conversion circuit provided by the invention adopts single switch flyback formula topological structure topology, voltage input wide region, and input impedance is high;
4, high-order energy gaining voltage conversion circuit provided by the invention can continue to get and can work, and realizes continuing high-power stable power-supplying.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that a high position gets energy circuit transformations circuit;
Fig. 2 is the schematic diagram of high-voltage power modular circuit;
Fig. 3 is the schematic diagram that a high position gets energy equipment.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the schematic diagram that a high position gets energy circuit transformations circuit; This circuit is made up of three-phase six brachium pontis, and the upper and lower bridge arm of every phase is coupled together by brachium pontis reactor; Each brachium pontis is formed by several high-voltage power module-cascades; High-voltage power module comprises high-pressure modular, electric capacity and a high position and gets energy equipment; It is in parallel successively that high-pressure modular, electric capacity and a high position get energy equipment.
Fig. 2 is the schematic diagram of high-voltage power modular circuit; Wherein, high-pressure modular comprises IGBT controller, all-controlling power electronics device IGBT, diode D, proterctive equipment and control appliance; IGBT controller comprises IGBT1 controller and IGBT2 controller; All-controlling power electronics device IGBT comprises IGBT1 and IGBT2; Diode D comprises D3 and D4; IGBT1 and diode D3 inverse parallel composition turn-off thyristor G1; IGBT2 and diode D4 inverse parallel composition turn-off thyristor G2; Control appliance, IGBT1 controller and turn-off thyristor G1 connect successively; Proterctive equipment, IGBT2 controller and turn-off thyristor G2 connect successively; Control appliance is connected with described proterctive equipment; IGBT1 controller is in parallel with IGBT2 controller; Turn-off thyristor G1 and turn-off thyristor G2 connects.High-order energy gaining voltage conversion circuit input voltage provided by the invention is high-voltage power module DC voltage, high-voltage power module adopts a bulky capacitor to provide stable direct-current working volts, for high-voltage power module provides stable energy harvesting point in DC side in running.
Fig. 3 is the schematic diagram that a high position gets energy equipment; A high position is got and can be comprised snubber circuit and switching power circuit by equipment; Snubber circuit comprises resistance R1, electric capacity C2 and diode D2; Connect with diode D2 after resistance R1 and electric capacity C2 parallel connection; Switching power circuit comprises transformer T1, inductance L
lT, diode D1, electric capacity C1, control chip and metal-oxide-semiconductor Tr; A winding of transformer T1 and inductance L
lTseries connection; Secondary winding, the diode D2 and electric capacity C1 of transformer T1 are connected in series; Control chip is connected with the grid of metal-oxide-semiconductor Tr; The drain electrode of metal-oxide-semiconductor Tr respectively with inductance L
lTbe connected with the positive pole of snubber circuit diode D2; A high position is got and can be called voltage conversion circuit by equipment, the single switch flyback formula structure that voltage conversion circuit adopts.As shown in Figure 3, the both positive and negative polarity of wide region high voltage input is connected with the both positive and negative polarity getting energy equipment place branch road high-order in Fig. 2 respectively.
Voltage conversion circuit adopt have structure simple, control to facilitate advantage single switch flyback formula topological structure, it completes and converts high voltage to low-voltage, and voltage conversion circuit switching device adopts high-voltage MOS pipe to realize high-tension conversion; Voltage conversion circuit adopts snubber circuit, absorbs flyback surge voltage, increases circuit working reliability; Voltage conversion circuit needs from reliable and stable work within the scope of the Width funtion input service of 250V ~ 2500V, in the course of the work, the DC bus capacitor of high-voltage power module fluctuates between 250V ~ 2500V, and with ripple voltage, voltage conversion circuit is when input voltage fluctuation, the voltage 15V that conversion exports, keeps stable.
Finally should be noted that: only illustrate that technical scheme of the present invention is not intended to limit in conjunction with above-described embodiment.Those of ordinary skill in the field are to be understood that: those skilled in the art can modify to the specific embodiment of the present invention or equivalent replacement, but these amendments or change are all being applied among the claims awaited the reply.
Claims (1)
1. a high-order energy gaining voltage conversion circuit, is characterized in that, described circuit is made up of three-phase six brachium pontis, and upper and lower bridge arm is coupled together by brachium pontis reactor; Each brachium pontis is formed by high-voltage power module-cascade; Described high-voltage power module comprises high-pressure modular, electric capacity and a high position and gets energy equipment; It is in parallel successively that described high-pressure modular, electric capacity and a high position get energy equipment;
Described high-pressure modular comprises IGBT controller, all-controlling power electronics device IGBT, diode D, proterctive equipment and control appliance; Described IGBT controller comprises IGBT1 controller and IGBT2 controller; Described all-controlling power electronics device IGBT comprises IGBT1 and IGBT2; Described diode D comprises D3 and D4;
Described IGBT1 and diode D3 inverse parallel composition turn-off thyristor G1; Described IGBT2 and diode D4 inverse parallel composition turn-off thyristor G2; Described control appliance, IGBT1 controller and turn-off thyristor G1 connect successively; Described proterctive equipment, IGBT2 controller and turn-off thyristor G2 are connected in series; Described control appliance is connected with described proterctive equipment; Described IGBT1 controller is in parallel with IGBT2 controller; Described turn-off thyristor G1 and turn-off thyristor G2 connects;
A described high position is got and can be comprised snubber circuit and switching power circuit by equipment; Described snubber circuit comprises resistance R1, electric capacity C2 and diode D2; Connect with diode D2 after described resistance R1 and electric capacity C2 parallel connection; Described switching power circuit comprises transformer T1, inductance L
lT, diode D1, electric capacity C1, control chip and metal-oxide-semiconductor Tr; A winding of described transformer T1 and inductance L
lTseries connection; Secondary winding, the diode D2 and electric capacity C1 of described transformer T1 are connected in series; Described control chip is connected with the grid of metal-oxide-semiconductor Tr; The drain electrode of described metal-oxide-semiconductor Tr respectively with inductance L
lTbe connected with the positive pole of snubber circuit diode D2;
A described high position is got and can be called voltage conversion circuit by equipment, the single switch flyback formula structure that described voltage conversion circuit adopts;
Voltage conversion circuit adopts single switch flyback formula topological structure, and it completes and converts high voltage to low-voltage, and voltage conversion circuit switching device adopts high-voltage MOS pipe to realize high-tension conversion; Voltage conversion circuit adopts snubber circuit, absorbs flyback surge voltage, increases circuit working reliability; Voltage conversion circuit needs from reliable and stable work within the scope of the Width funtion input service of 250V ~ 2500V, in the course of the work, the DC bus capacitor of high-voltage power module fluctuates between 250V ~ 2500V, and with ripple voltage, voltage conversion circuit is when input voltage fluctuation, the voltage 15V that conversion exports, keeps stable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110066786.3A CN102201737B (en) | 2011-03-18 | 2011-03-18 | High-order energy gaining voltage conversion circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110066786.3A CN102201737B (en) | 2011-03-18 | 2011-03-18 | High-order energy gaining voltage conversion circuit |
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| CN102201737A CN102201737A (en) | 2011-09-28 |
| CN102201737B true CN102201737B (en) | 2015-02-18 |
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| CN201110066786.3A Active CN102201737B (en) | 2011-03-18 | 2011-03-18 | High-order energy gaining voltage conversion circuit |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683857B (en) * | 2013-12-13 | 2015-12-30 | 荣信电力电子股份有限公司 | Direct current energy-taking power supply of IEGT power module |
| CN105162324B (en) * | 2015-10-26 | 2018-03-02 | 株洲中车时代电气股份有限公司 | DC high-voltage power supply, high-order energy taking device and its method of supplying power to |
| CN106972738B (en) * | 2017-04-28 | 2023-12-15 | 荣信汇科电气股份有限公司 | High-potential energy taking device and method comprising turn-off starting circuit |
| CN109450228A (en) * | 2018-10-24 | 2019-03-08 | 北京金自天正智能控制股份有限公司 | The automatic electricity getting triggering method of thyristor in a kind of high-voltage high-power frequency transformator |
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|---|---|---|---|---|
| CN2781641Y (en) * | 2005-03-29 | 2006-05-17 | 康佳集团股份有限公司 | Switch power supply |
| CN101478301A (en) * | 2008-12-31 | 2009-07-08 | 中国电力科学研究院 | High potential energy collecting device |
| CN101546964A (en) * | 2009-05-12 | 2009-09-30 | 北京交通大学 | Module combined multi-level converter |
| CN101707443A (en) * | 2009-11-20 | 2010-05-12 | 中国电力科学研究院 | Novel electric power electric transformer |
| CN101795057A (en) * | 2010-04-07 | 2010-08-04 | 浙江大学 | Method for starting three-phase modular multilevel inverter without auxiliary DC power supply |
| CN101795080A (en) * | 2010-03-03 | 2010-08-04 | 中国科学院电工研究所 | Three-phase power electronics transformer for power distribution |
| WO2010145705A1 (en) * | 2009-06-18 | 2010-12-23 | Areva T&D Uk Limited | Converter |
-
2011
- 2011-03-18 CN CN201110066786.3A patent/CN102201737B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781641Y (en) * | 2005-03-29 | 2006-05-17 | 康佳集团股份有限公司 | Switch power supply |
| CN101478301A (en) * | 2008-12-31 | 2009-07-08 | 中国电力科学研究院 | High potential energy collecting device |
| CN101546964A (en) * | 2009-05-12 | 2009-09-30 | 北京交通大学 | Module combined multi-level converter |
| WO2010145705A1 (en) * | 2009-06-18 | 2010-12-23 | Areva T&D Uk Limited | Converter |
| CN101707443A (en) * | 2009-11-20 | 2010-05-12 | 中国电力科学研究院 | Novel electric power electric transformer |
| CN101795080A (en) * | 2010-03-03 | 2010-08-04 | 中国科学院电工研究所 | Three-phase power electronics transformer for power distribution |
| CN101795057A (en) * | 2010-04-07 | 2010-08-04 | 浙江大学 | Method for starting three-phase modular multilevel inverter without auxiliary DC power supply |
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| CN102201737A (en) | 2011-09-28 |
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Effective date of registration: 20130425 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
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