CN102377361A - AC (alternating current)/DC (direct current) bidirectional magnetic resonance inverter - Google Patents
AC (alternating current)/DC (direct current) bidirectional magnetic resonance inverter Download PDFInfo
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- CN102377361A CN102377361A CN2010102486088A CN201010248608A CN102377361A CN 102377361 A CN102377361 A CN 102377361A CN 2010102486088 A CN2010102486088 A CN 2010102486088A CN 201010248608 A CN201010248608 A CN 201010248608A CN 102377361 A CN102377361 A CN 102377361A
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Abstract
The invention discloses an AC (alternating current)/DC (direct current) bidirectional magnetic resonance inverter which comprises a high-frequency coaxial transformer, a power-frequency-to-high-frequency converter and a bidirectional inverted energy converter which is composed of insulated gate bipolar type transistor high-power electronic components and is connected with a cell stack DC rechargeable power supply; the inverter also comprises a second power-frequency/high-frequency converter which is connected to the commercial power network, wherein the second power-frequency/high-frequency converter is also connected to the high-frequency coaxial transformer. The inverter has high response speed, small size and high energy conversion efficiency and can meet the environmental requirements.
Description
Technical field
The present invention relates to the power technology field, particularly relate to the two-way magnetic resonance inverter of a kind of alternating current-direct current.
Background technology
Because the fast development that industrial or agricultural is built and the raising of living standards of the people, the requirement of electric power is promoted day by day, power consumer is that the quality of power supply is good to the requirement of power supply quality, power supply reliability is high, promptly few as far as possible power failure or do not have a power failure.
But the demand of power consumer every day is very uneven, daytime peak of power consumption with evening the low power consumption load deviation very big, therefore, press at present and can alleviate power shortage, quick responsive electricity grid peak regulation, high efficiency battery energy storage power station.
Various peak load regulation network environment-friendly battery energy-accumulating power stations need energy conversion system (PCS) when battery energy storage and electrical network discharge and recharge, and traditional energy conversion system volume big, heavy, consume that the iron copper product is many, energy conversion efficiency is low (＜80%).
Summary of the invention
The object of the present invention is to provide the two-way magnetic resonance inverter of a kind of alternating current-direct current, its response speed is fast, volume is little, energy conversion efficiency is high, compliance with environmental protection requirements.
Be the two-way magnetic resonance inverter of a kind of alternating current-direct current of realizing that the object of the invention provides; Comprise that high frequency is with the mandrel transformer; Power frequency conversion high-frequency converter, and the two-way inversion energy converter of forming by insulated gate bipolar transistor large power, electrically sub-element that is connected in battery pile direct current rechargable power supplies;
Said two-way inversion energy converter and first power frequency/high-frequency converter, first power frequency/high-frequency converter is connected with the mandrel transformer with high frequency; In when charging, high frequency with the mandrel transformer with high-frequency electrical after first power frequency/high-frequency converter converts the power frequency electricity into, be input to two-way inversion energy converter and convert direct current into to the storage of charging of battery pile direct current rechargable power supplies; Perhaps when discharge is used or is incorporated into the power networks; The direct current of battery pile direct current rechargable power supplies output is outputed to after two-way inversion energy converter converts the power frequency electricity into; Output to after first power frequency/high-frequency converter converts high-frequency electrical into, output to high frequency with the mandrel transformer;
The two-way magnetic resonance inverter of said alternating current-direct current also comprises the second power frequency/high-frequency converter that is connected in city's electrical network;
Said second power frequency/high-frequency converter is also connected to high frequency with the mandrel transformer; When charging, civil power is input to second power frequency/high-frequency converter and converts high-frequency electrical into, is further handled obtaining direct current then with the mandrel transformer by high frequency, and power storage is arrived battery pile direct current rechargable power supplies; Perhaps when discharge is used or is incorporated into the power networks, high frequency, is converted to by second power frequency/high-frequency converter and to output to city's electrical network behind the power frequency electricity and use as civil power to second power frequency/high-frequency converter with mandrel transformer output high-frequency electrical.
More excellent ground, said high frequency is the 100KHZ-180KHZ high-frequency alternating current with the high-frequency current of input of mandrel transformer or output.
More excellent ground, bidirectional reversible is made up of in said high frequency magnetic resonance copper core circle and electronic circuit with the mandrel transformer.
More excellent ground, said insulated gate bipolar transistor adopts the Optical Fiber Transmission triggering signal.
The invention has the beneficial effects as follows: the two-way magnetic resonance inverter of alternating current-direct current of the present invention has quick response, advantage that security reliability is high; Simultaneously, it can improve the generating equipment utilance, saves the area.And its conversion efficiency high (can reach 98%), good in economic efficiency; Response is fast, and switch speed is fast, reaches as high as 20ms.And its maintenance cost is low, long service life (can reach 20～30 years).
Description of drawings
Fig. 1 is the two-way magnetic resonance inverter structure of an alternating current-direct current of the present invention sketch map.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the two-way magnetic resonance inverter of alternating current-direct current of the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The two-way magnetic resonance inverter of alternating current-direct current of the present invention utilizes electromagnetic high-frequency resonance energy transmission characteristic, is become by the low-voltage dc power supply direct inverse to meet the AC power that electrical network networks and requires, and realizes the quick peak regulation requirement of electrical network; Or become the DC power supply that can charge the battery by the grid alternating current source.
As shown in Figure 1; But as a kind of execution mode, the two-way magnetic resonance inverter of the alternating current-direct current of the embodiment of the invention comprises that high frequency is with mandrel transformer 4; First power frequency/high-frequency converter 3; And be connected in battery pile direct current rechargable power supplies 1 by insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, the two-way inversion energy converter of IGBT) forming 2 (Process Control System, PCS);
Said two-way inversion energy converter 2 and first power frequency/high-frequency converter 3, the first power frequencies/high-frequency converter 3 are connected with mandrel transformer 4 with high frequency; In when charging, high frequency with mandrel transformer 4 with high-frequency electrical after first power frequency/high-frequency converter 3 converts the power frequency electricity into, be input to two-way inversion energy converter 2 and convert direct current into to battery pile direct current rechargable power supplies 1 storage of charging; Perhaps when discharge is used or is incorporated into the power networks; The direct current of battery pile direct current rechargable power supplies 1 output is outputed to after two-way inversion energy converter 2 converts the power frequency electricity into; Output to after first power frequency/high-frequency converter 3 converts high-frequency electrical into, output to high frequency with mandrel transformer 4.
The two-way magnetic resonance inverter of the alternating current-direct current of the embodiment of the invention also comprises the second power frequency/high-frequency converter 5 that is connected in city's electrical network 6;
Said second power frequency/high-frequency converter 5 is also connected to high frequency with mandrel transformer 4; When charging, civil power is input to second power frequency/high-frequency converter 5 and converts high-frequency electrical into, is converted to direct current by high frequency with mandrel transformer 4 then, and power storage is arrived battery pile direct current rechargable power supplies 1; Perhaps when discharge is used or is incorporated into the power networks, high frequency, is converted to by second power frequency/high-frequency converter 5 and to output to city's electrical network 6 behind the power frequency electricity and use as civil power to second power frequency/high-frequency converter 5 with mandrel transformer 4 output high-frequency electrical.
Preferably, the said high frequency of the said warp first power frequency/high-frequency converter 3 or second power frequency/high-frequency converter 5 conversion I/O is the 100KHZ-180KHZ high-frequency alternating current with the high-frequency current of 4 inputs of mandrel transformer or output.Like this, high frequency is minimum with mandrel transformer 4 energy losses.
When discharge is used or is incorporated into the power networks, form DC power supply by battery pile direct current rechargable power supplies 1, change 3 through two-way inversion energy converter 2 and first power frequency/high-frequency converter and change high-frequency alternating current into;
When discharge is used or is incorporated into the power networks; 1 output of battery pile direct current rechargable power supplies becomes industrial-frequency alternating current by direct current through two-way inversion energy converter 2; Convert to through first power frequency/high-frequency converter 3 again and be fit to high frequency with the minimum 100KHZ-180KHZ high-frequency alternating current of mandrel transformer 4 energy losses; Again by the high frequency magnetic resonance with mandrel transformer 4 boost reach line voltage after; Carry out frequency conversion by second power frequency/high-frequency converter 5, flow to the output of city's electrical network 6 peak regulation power supply grids by the high frequency voltage stabilizing frequently of exchanging work.
Said high frequency is made up of copper core circle and electronic circuit with mandrel transformer 4, and bidirectional reversible can boost, also can reverse step-down.
During charging, through 5 conversions of second power frequency/high-frequency converter, uprise frequently by power frequency by city's electrical network 6 AC powers, again by high frequency with 4 step-downs of mandrel transformer; Convert heap direct current rechargable power supplies 1 charging of powered by direct current pond to through two-way inversion energy converter 2 and first power frequency/high-frequency converter 3 then.
Said high frequency is bidirectional reversibles with mandrel transformer 4 buck-boosts.
Preferably; The IGBT element of two-way inversion energy converter 2 of the present invention considers that two-way inversion energy converter 2 works in high voltage, current state, so the electromagnetic interference of system (Electromagnetic Interference; EMI) relatively large; And reliability, stable must wait factor, the IGBT of the embodiment of the invention adopts the Optical Fiber Transmission triggering signal to increase the reliability of IGBT element, has good reliability and stability.
And owing to adopted optical fiber as transmission signals, so that control section and drive part can be separated by is far away, control section can produce the source away from EMI, and this helps strengthening the stability of control section work;
The two-way magnetic resonance inverter of alternating current-direct current of the present invention utilizes the high frequency coaxial transformer to reach the transmission of magnetic resonance high efficiency energy; Utilize IGBT can reach Fast Dual, realize the quick conversion between two-way inversion high frequency and power frequency to invert function.
The two-way magnetic resonance inverter of the alternating current-direct current of the embodiment of the invention has quick response, advantage that security reliability is high; Compare the conversion efficiency height with tradition, traditional DC power supply becomes AC power or alternating current becomes galvanic transfer ratio＜80%; And adopting the conversion efficiency of the two-way magnetic resonance inverter of alternating current-direct current can reach 96%-98%, volume is traditional 1/10th, reduces the use amount of silicon steel and copper enamelled wire in a large number.And response is fast, and switch speed is fast, reaches as high as 20ms.And its maintenance cost is low, long service life (can reach 20～30 years).
Should be noted that at last that obviously those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these revise and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification.
Claims (4)
1. the two-way magnetic resonance inverter of alternating current-direct current is characterized in that, comprises high frequency with the mandrel transformer, first power frequency/high-frequency converter, and the two-way inversion energy converter of being made up of insulated gate bipolar transistor that is connected in battery pile direct current rechargable power supplies;
Said two-way inversion energy converter and first power frequency/high-frequency converter, first power frequency/high-frequency converter is connected with the mandrel transformer with high frequency; In when charging, high frequency with the mandrel transformer with high-frequency electrical after first power frequency/high-frequency converter converts the power frequency electricity into, be input to two-way inversion energy converter and convert direct current into to the storage of charging of battery pile direct current rechargable power supplies; Perhaps when discharge is used or is incorporated into the power networks; The direct current of battery pile direct current rechargable power supplies output is outputed to after two-way inversion energy converter converts the power frequency electricity into; Output to after first power frequency/high-frequency converter converts high-frequency electrical into, output to high frequency with the mandrel transformer;
The two-way magnetic resonance inverter of said alternating current-direct current also comprises the second power frequency/high-frequency converter that is connected in city's electrical network;
Said second power frequency/high-frequency converter is also connected to high frequency with the mandrel transformer; When charging, civil power is input to second power frequency/high-frequency converter and converts high-frequency electrical into, is converted to direct current by high frequency with the mandrel transformer then, and power storage is arrived battery pile direct current rechargable power supplies; Perhaps when discharge is used or is incorporated into the power networks, high frequency, is converted to by second power frequency/high-frequency converter and to output to city's electrical network behind the power frequency electricity and use as civil power to second power frequency/high-frequency converter with mandrel transformer output high-frequency electrical.
2. the two-way magnetic resonance inverter of alternating current-direct current according to claim 1 is characterized in that, said high frequency is the 100KHZ-180KHZ high-frequency alternating current with the high-frequency current of input of mandrel transformer or output.
3. the two-way magnetic resonance inverter of alternating current-direct current according to claim 1 is characterized in that bidirectional reversible is made up of in said high frequency magnetic resonance copper core circle and electronic circuit with the mandrel transformer.
4. according to the two-way magnetic resonance inverter of each described alternating current-direct current of claim 1 to 3, it is characterized in that said insulated gate bipolar transistor adopts the Optical Fiber Transmission triggering signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102486088A CN102377361A (en) | 2010-08-06 | 2010-08-06 | AC (alternating current)/DC (direct current) bidirectional magnetic resonance inverter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102486088A CN102377361A (en) | 2010-08-06 | 2010-08-06 | AC (alternating current)/DC (direct current) bidirectional magnetic resonance inverter |
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| CN102377361A true CN102377361A (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102486088A Pending CN102377361A (en) | 2010-08-06 | 2010-08-06 | AC (alternating current)/DC (direct current) bidirectional magnetic resonance inverter |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037226A (en) * | 1999-07-23 | 2001-02-09 | Chiyoda:Kk | Dc bidirectional converter |
| CN1604420A (en) * | 2004-11-05 | 2005-04-06 | 华中科技大学 | An electric energy quality regulator |
| US20080067869A1 (en) * | 2006-08-04 | 2008-03-20 | Evans Christopher J | Power supply control for power generator |
| CN201789432U (en) * | 2010-08-06 | 2011-04-06 | 珠海银通新能源有限公司 | Direct current and alternating current two-way magnetic resonance inverter |
-
2010
- 2010-08-06 CN CN2010102486088A patent/CN102377361A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037226A (en) * | 1999-07-23 | 2001-02-09 | Chiyoda:Kk | Dc bidirectional converter |
| CN1604420A (en) * | 2004-11-05 | 2005-04-06 | 华中科技大学 | An electric energy quality regulator |
| US20080067869A1 (en) * | 2006-08-04 | 2008-03-20 | Evans Christopher J | Power supply control for power generator |
| CN201789432U (en) * | 2010-08-06 | 2011-04-06 | 珠海银通新能源有限公司 | Direct current and alternating current two-way magnetic resonance inverter |
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Application publication date: 20120314 |