CN104410318A - Inversion and rectification integrated power conversion circuit - Google Patents
Inversion and rectification integrated power conversion circuit Download PDFInfo
- Publication number
- CN104410318A CN104410318A CN201410787541.3A CN201410787541A CN104410318A CN 104410318 A CN104410318 A CN 104410318A CN 201410787541 A CN201410787541 A CN 201410787541A CN 104410318 A CN104410318 A CN 104410318A
- Authority
- CN
- China
- Prior art keywords
- contactor
- direct current
- filter circuit
- inversion
- circuit
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 10
- 230000010354 integration Effects 0.000 claims description 8
- 208000032365 Electromagnetic interference Diseases 0.000 abstract 4
- 230000000694 effects Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/66—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal
- H02M7/86—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by dynamic converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Rectifiers (AREA)
Abstract
The invention relates to an inversion and rectification integrated power conversion circuit which comprises a direct current EMI (electro-magnetic interference) filter circuit, a power module and an alternating current filter circuit, wherein the direct current EMI filter circuit is connected with the power module, the power module is connected with the alternating current filter circuit, the alternating current filter circuit is connected with an alternating current side, the direct current EMI filter circuit is connected with a direct current side through a direct current contactor, and a direct current auxiliary contactor is connected with a direct current pre-charge resistor in series and then connected with the direct current contactor in parallel. By means of the bi-directional direct current contactor, rectification and inversion circuits are arranged in one channel, the bi-way design that rectification current and inversion current pass by different contactors is changed, and the cost is saved.
Description
Technical field
The invention belongs to alternating current-direct current circuit for power conversion, be specifically related to a kind of circuit for power conversion of inversion rectification integration.
Background technology
Contactor is a kind of automation switch being used for being switched on or switched off load-carrying alternating current-direct current main circuit or Large Copacity control circuit; major control is to liking motor; in addition also for other electrical loads; as electric heater; electric welding machine; lighting apparatus, contactor can not only be connected and cut off circuit, but also has the effect of low-voltage release guard.Contactor control capability is large, and the longevity that it disconnects normal duty closes longer, can reach 100,000 times.Be applicable to frequent operation and far distance controlled.In Electronic Control, contactor can realize low-voltage Small current control high-voltage large current, can also realize the isolation of control loop and major loop.
On market, the contactor of high voltage withstand class is generally unipolarity, simultaneously on market, existing rectification and inverter circuit normally separate, contactor as used in photovoltaic combining inverter is unipolar, only has invert function, and electric current can only flow to AC from DC side.Rectification and inversion cannot be made in a passage by existing energy storage device power control unit, realize real-time energy flow direction and switch.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of inversion rectification circuit with bidirectional, dc contactor, by bidirectional, dc contactor, rectification and inverter circuit are made in a passage, change rectification and inversion walk different contactor two-pass design, cost-saving.
Technical scheme of the present invention is: a kind of circuit for power conversion of inversion rectification integration, comprise direct current EMI filter circuit, functional module and ac filter circuit, direct current EMI filter circuit connects power model, power model connects ac filter circuit, ac filter circuit connects AC, described direct current EMI filter circuit connects DC side by D.C. contactor, and direct current auxiliary contactor has been connected in parallel with described D.C. contactor after a direct current pre-charge resistance.Described D.C. contactor is high-voltage DC contactor, supports electric current two-way admittance.Be provided with isolating switch between DC side and D.C. contactor, between described AC and ac filter circuit, be provided with main contactor.
The present invention has following good effect: realize D.C. contactor and directly carry out discharge and recharge seamless switching when not disconnecting, and avoids commutation inversion to walk the two-pass design of different contactor, and save cost, switch speed is fast.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of the specific embodiment of the invention.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
As figure, present system comprises direct current EMI filter circuit, functional module and ac filter circuit, direct current EMI filter circuit connects DC side by D.C. contactor, isolating switch is provided with between D.C. contactor and DC side, direct current EMI filter circuit connects power model, power model connects ac filter circuit, and ac filter circuit connects AC, is provided with main contactor between AC and ac filter circuit.
As Fig. 1, direct current auxiliary contactor has been connected in parallel with D.C. contactor after a direct current pre-charge resistance, and D.C. contactor is high-voltage DC contactor, voltage withstand class 900VDC, operating voltage 600VDC, bipolarity, supports electric current two-way admittance.High-voltage DC contactor is used for power model front end, uses in conjunction with auxiliary contactor.First control direct current auxiliary contactor in using to close, charge to the Support Capacitor of power model, after electric capacity is full of electricity, high-voltage DC contactor closes, and AC main contactor then closes, circuit turn-on, can realize the bumpless transfer of online charging and discharging.Namely the sense of current can from DC side to AC, also can from AC to DC side.Period, high-voltage DC contactor was in closure state all the time, realized the power control circuit of inversion rectification integration.
Power control circuit of the present invention can be applicable on energy storage device, seamless switching can be carried out in less than 5 milliseconds between civil power and stand-by power supply, make energy storage device both can be used as Large UPS to use, again can in the electric feedback online of peak of power consumption by other electric energy device such as such as electric automobiles.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (4)
1. the circuit for power conversion of an inversion rectification integration, it is characterized in that: comprise direct current EMI filter circuit, functional module and ac filter circuit, direct current EMI filter circuit connects power model, power model connects ac filter circuit, ac filter circuit connects AC, described direct current EMI filter circuit connects DC side by D.C. contactor, and direct current auxiliary contactor has been connected in parallel with described D.C. contactor after a direct current pre-charge resistance.
2. the circuit for power conversion of inversion rectification integration according to claim 1, is characterized in that: described D.C. contactor is high-voltage DC contactor, supports electric current two-way admittance.
3. the circuit for power conversion of inversion rectification integration according to claim 1, is characterized in that: be provided with isolating switch between DC side and D.C. contactor.
4. the circuit for power conversion of inversion rectification integration according to claim 1, is characterized in that: be provided with main contactor between described AC and ac filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787541.3A CN104410318A (en) | 2014-12-17 | 2014-12-17 | Inversion and rectification integrated power conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787541.3A CN104410318A (en) | 2014-12-17 | 2014-12-17 | Inversion and rectification integrated power conversion circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104410318A true CN104410318A (en) | 2015-03-11 |
Family
ID=52647921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410787541.3A Pending CN104410318A (en) | 2014-12-17 | 2014-12-17 | Inversion and rectification integrated power conversion circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104410318A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024447A (en) * | 2015-08-05 | 2015-11-04 | 成都君禾天成科技有限公司 | Backup power supply system with three-phase power supply |
| CN105071523A (en) * | 2015-08-05 | 2015-11-18 | 成都君禾天成科技有限公司 | Power supply method of three-phase uninterruptable power supply (UPS) |
| CN105186302A (en) * | 2015-08-13 | 2015-12-23 | 南京亚派科技股份有限公司 | Non-impact slow starting method for subway energy feedback device |
| CN113708676A (en) * | 2021-10-27 | 2021-11-26 | 中车戚墅堰机车有限公司 | Starting excitation circuit of hybrid power locomotive, hybrid power locomotive and control method |
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| CN101783597A (en) * | 2010-03-31 | 2010-07-21 | 山东新风光电子科技发展有限公司 | Dynamic reactive compensation device based on direct current side active structure and amplitude adjustment control |
| US20120091792A1 (en) * | 2011-06-29 | 2012-04-19 | Ford Global Technologies, Llc | Method and apparatus for charging or discharging an electrical device |
| CN102842957A (en) * | 2012-09-28 | 2012-12-26 | 重庆泊津科技有限公司 | Intelligent seamless switching device for double direct-current operation power supplies of converting station |
| CN102882440A (en) * | 2012-10-27 | 2013-01-16 | 株洲变流技术国家工程研究中心有限公司 | High-power braking energy consumption device and control method thereof |
| CN103259059A (en) * | 2013-04-17 | 2013-08-21 | 大连尚能科技发展有限公司 | Initial charging method of flow battery and circuit |
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2014
- 2014-12-17 CN CN201410787541.3A patent/CN104410318A/en active Pending
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| CN101783597A (en) * | 2010-03-31 | 2010-07-21 | 山东新风光电子科技发展有限公司 | Dynamic reactive compensation device based on direct current side active structure and amplitude adjustment control |
| US20120091792A1 (en) * | 2011-06-29 | 2012-04-19 | Ford Global Technologies, Llc | Method and apparatus for charging or discharging an electrical device |
| CN102842957A (en) * | 2012-09-28 | 2012-12-26 | 重庆泊津科技有限公司 | Intelligent seamless switching device for double direct-current operation power supplies of converting station |
| CN102882440A (en) * | 2012-10-27 | 2013-01-16 | 株洲变流技术国家工程研究中心有限公司 | High-power braking energy consumption device and control method thereof |
| CN103259059A (en) * | 2013-04-17 | 2013-08-21 | 大连尚能科技发展有限公司 | Initial charging method of flow battery and circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024447A (en) * | 2015-08-05 | 2015-11-04 | 成都君禾天成科技有限公司 | Backup power supply system with three-phase power supply |
| CN105071523A (en) * | 2015-08-05 | 2015-11-18 | 成都君禾天成科技有限公司 | Power supply method of three-phase uninterruptable power supply (UPS) |
| CN105186302A (en) * | 2015-08-13 | 2015-12-23 | 南京亚派科技股份有限公司 | Non-impact slow starting method for subway energy feedback device |
| CN113708676A (en) * | 2021-10-27 | 2021-11-26 | 中车戚墅堰机车有限公司 | Starting excitation circuit of hybrid power locomotive, hybrid power locomotive and control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |