CN101540545A - Non-contact electric energy transmission system based on single-phase matrix convertor - Google Patents
Non-contact electric energy transmission system based on single-phase matrix convertor Download PDFInfo
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- CN101540545A CN101540545A CN200910301907A CN200910301907A CN101540545A CN 101540545 A CN101540545 A CN 101540545A CN 200910301907 A CN200910301907 A CN 200910301907A CN 200910301907 A CN200910301907 A CN 200910301907A CN 101540545 A CN101540545 A CN 101540545A
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- induction coupling
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- matrix convertor
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- 239000011159 matrix material Substances 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 230000008878 coupling Effects 0.000 claims abstract description 25
- 238000010168 coupling process Methods 0.000 claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 claims abstract description 25
- 230000006698 induction Effects 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Abstract
The invention discloses a non-contact electric energy transmission system based on a single-phase matrix convertor. The non-contact electric energy transmission system can be divided into a sending part and a receiving part which are bounded by an induction coupling; the sending part comprises an input filter, the single-phase matrix convertor and a primary winding of the induction coupling, wherein a two-way switch of the single-phase matrix convertor is formed by combining one IGBT and four diodes; and the receiving part comprises a vice-side winding of the induction coupling and a rectifier-filter circuit. The non-contact electric energy transmission system directly converts power frequency alternating-current (AC) signals output by power grid into high-frequency AC signals to be provided to the primary winding of the induction coupling so as to avoid nonlinear elements such as rectifiers, high-capacity filter capacitors and the like and direct current (DC) energy storage links and overcome the problems of the existing non-contact electric energy transmission system based on AC-DC-AC conversion principle that input current encounters serious distortion; pollution to the power grid can be caused; and input power factor is low; and then the application process of non-contact electric energy transmission technology can be largely accelerated.
Description
Technical field
The invention belongs to electric and electronic technical field, relate to non-contact electric energy transmission system, particularly a kind of non-contact electric energy transmission system based on single-phase matrix convertor.
Background technology
Domestic the non-contact electric energy transmission system The study of topology is mainly concentrated on the circuit structure aspect based on the ac-dc-ac transform principle such as full-bridge inverting, semi-bridge inversion.Because the combination of non-linear element such as rectifier and capacitive filter and energy-storage travelling wave tube causes its input current generation severe distortion in this system, produces a large amount of harmonic waves, and electrical network is caused " pollution ".In addition, the existence based on the dc energy storage link of big capacity filter capacitor also causes problems such as integrated level is low, reliability is low.
Rudolf Mecke that also only has at present German application study university's (University of Applied Studies and Research) automation and computer institute abroad etc. has delivered two pieces of paper " Bidirectional switches for matrix converter in contactlessenergy transmi ssion systems " and " Matrix converter with advanced control forcontactless energy transmission " that are applied to the non-contact type electric energy transmission system about three-phase-single-phase matrix convertor. Inquired into the superiority of three-phase-single-phase matrix convertor in the non-contact type electric energy transmission system in the literary composition, studied the special feature that three-phase-single-phase high frequency matrix converter combines with the non-contact type electric energy transmission, but do not provide experimental result, electric energy transmitting situation in the system is not provided analysis yet.In addition, the circuit structure complexity of three-phase single-phase matrix convertor, control method is loaded down with trivial details, and can't use in the field of single phase power supply.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of non-contact electric energy based on the ac-ac conversion principle to pass
Communication system solves based on input current in the non-contact electric energy transmission system of ac-dc-ac transform principle and serious distortion takes place, electrical network is polluted and problems such as input power factor is low.
In order to realize above-mentioned task, the technical scheme that the present invention takes is as follows:
A kind of non-contact electric energy transmission system based on single-phase matrix convertor comprises input filter, single-phase matrix convertor, induction coupling and current rectifying and wave filtering circuit; This system is that the boundary is divided into transmission part and receiving unit with the induction coupling.The sending part branch comprises the former limit of input filter, single-phase matrix convertor and induction coupling winding, the signal of telecommunication of input is behind input filter, send single-phase matrix convertor to, single-phase matrix convertor is that high-frequency signal is supplied with the former limit of induction coupling winding with the power frequency component inversion that receives.Wherein the bidirectional switch of single-phase matrix convertor is formed by a switching tube (IGBT) and four diode combinations; Receiving unit comprises induction coupling secondary winding and current rectifying and wave filtering circuit, and induction coupling secondary winding will be given current rectifying and wave filtering circuit from the signal of telecommunication of the former limit of induction coupling winding coupled and be obtained direct current signal and offer load.The inductance of induction coupling secondary winding is greater than the inductance of the former limit of induction coupling winding.
For two switching tubes conducting simultaneously that prevents the brachium pontis homonymy causes short circuit, suitable Dead Time should be set in drive signal.
The invention has the beneficial effects as follows that the industrial frequency AC signal transition of directly electrical network being exported is that high frequency ac signal offers the former limit of induction coupling winding, do not need non-linear element and dc energy storage links such as rectifier and big capacity filter capacitor, solved based on the serious distortion of input current generation in the non-contact electric energy transmission system of ac-dc-ac transform principle, to the problem that electrical network pollutes, input power factor is low, promoted the practicalization of non-contact electric energy transmission technology greatly.
Description of drawings
Fig. 1 is based on the topology diagram of the non-contact electric energy transmission system of single-phase matrix convertor.
Fig. 2 is the working waveform figure of system.
Fig. 3 (a) and (b), (c) and (d) be 4 kinds of commutating mode figure of system.
Fig. 4 is the input current waveform figure of system.
Fig. 5 is the FFT spectrogram of system's input current.
Embodiment
Be described in detail specific embodiments of the invention below in conjunction with technical scheme and accompanying drawing.
As shown in Figure 1, this figure is the topology diagram based on the non-contact type electric energy transmission system of single-phase matrix convertor.In this circuit diagram, be that the boundary is divided into two parts with circuit: send part and receiving unit with the coupler.Send the input filter of part, being used for as much as possible, the filtering input current is reduced the high-frequency harmonic of mains side is polluted, and is improved power factor (PF) by the high-frequency harmonic composition that switch motion produces; Send the single-phase matrix convertor of part, be used for providing high-frequency ac current, in this single-phase matrix convertor, adopt bidirectional switch, to simplify control based on single tube to the coupler primary winding.The current rectifying and wave filtering circuit of receiving unit is used for the AC voltage conversion of coupler output is become direct voltage, uses for DC load.
At in the non-contact electric energy transmission system to the specific (special) requirements of former limit signal, be necessary the working condition that single-phase matrix convertor is applied in the non-contact electric energy transmission system is analyzed.Based on the matrix converter work wave of single tube bridge-type two-way switch (wherein drive waveforms has been through having amplified, so that illustrate clear) as shown in Figure 2.
In one-period, system can be divided into four kinds of mode of operation 1-patterns 4, the current direction of every kind of pattern such as Fig. 3 (a)-(d), the concrete course of work is as follows:
Pattern 1[t
0, t
1]: switching tube S
11, S
22Conducting, S
12, S
21Turn-off; The A point voltage is higher than the B point voltage, so electric current A → D
12→ S
11→ D
13→ a → Z
Ix→ b → D
42→ S
22→ D
43→ B with the path conducting.After ignoring tube voltage drop, V
AbWith V
ABAmplitude equates that direction is identical.
Pattern 2[t
2, t
3]: switching tube S
12, S
21Conducting, S
11, S
22Turn-off; The A point voltage is higher than the B point voltage, so electric current is with A → D
32→ S
12→ D
33→ b → Z
Ix→ a → D
22→ S
21→ D
23The path conducting of → B.After ignoring tube voltage drop, V
AbWith V
ABAmplitude equates that direction is opposite.
Mode 3 [t
4, t
5]: switching tube S
11, S
22Conducting, S
12, S
21Turn-off; But the A point voltage is lower than the B point voltage, so electric current is with B → D
44→ S
22→ D
41→ b → Z
Ix→ a → D
14→ S
11→ D
11The path conducting of → A.V
AbWith V
ABAmplitude equates that direction is identical, but opposite with the voltage of pattern 1.
Pattern 4[t
6, t
7]: switching tube S
12, S
21Conducting, S
11, S
22Turn-off; But the A point voltage is lower than the B point voltage, so electric current is with B → D
24→ S
21→ D
21→ a → Z
Ix→ b → D
34→ S
12→ D
31The path conducting of → A.V
AbWith V
ABAmplitude equates that direction is opposite, but opposite with the voltage of pattern 2.
([t in the pattern of dead band
1, t
2], [t
5, t
6]), as shown in Figure 2, output voltage is 0.
According to above-mentioned analysis, built experiment porch based on the non-contact electric energy transmission system of single-phase matrix convertor.Get filter inductance L
fBe 540 μ H, capacitor C
fBe 3 μ F; Induction coupling adopts homemade jar of shape ferrite core, and its former limit self-induction is 39.94 μ H, and the secondary self-induction is 42.55 μ H, and when air gap was 7mm, mutual inductance was 17.10 μ H; The former limit of induction coupling series capacitance is 0.2 μ F, and the secondary shunt capacitance is 0.133 μ F; Switching frequency is 50kHz, and the input voltage effective value is 12V, and load is 60 Ω resistance.Input current waveform and fft analysis are respectively as shown in Figure 4 and Figure 5.Measure by experiment, input power factor is 0.98 behind the adding filter.Hence one can see that, has sinusoidal input current based on the non-contact electric energy transmission system of single-phase matrix convertor, and the system input power factor of making approaches 1, thereby has reduced the harmonic pollution of mains side.
Claims (1)
1. the non-contact electric energy transmission system based on single-phase matrix convertor comprises input filter, single-phase matrix convertor, induction coupling and current rectifying and wave filtering circuit; It is characterized in that: this system is that the boundary is divided into transmission part and receiving unit with the induction coupling, the sending part branch comprises the former limit of input filter, single-phase matrix convertor and induction coupling winding, receiving unit comprises induction coupling secondary winding and current rectifying and wave filtering circuit, wherein the bidirectional switch of single-phase matrix convertor is formed by an IGBT and four diode combinations, and the inductance of induction coupling secondary winding is greater than the inductance of the former limit of induction coupling winding;
The signal of telecommunication of input sends single-phase matrix convertor to behind input filter, single-phase matrix convertor is that high-frequency signal is supplied with the former limit of induction coupling winding with the power frequency component inversion that receives; Induction coupling secondary winding will be given current rectifying and wave filtering circuit from the signal of telecommunication of the former limit of induction coupling winding coupled and be obtained direct current signal and offer load; For two switching tubes conducting simultaneously that prevents the brachium pontis homonymy causes short circuit, suitable Dead Time is set in drive signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910301907A CN101540545A (en) | 2009-04-28 | 2009-04-28 | Non-contact electric energy transmission system based on single-phase matrix convertor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910301907A CN101540545A (en) | 2009-04-28 | 2009-04-28 | Non-contact electric energy transmission system based on single-phase matrix convertor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860087A (en) * | 2010-05-11 | 2010-10-13 | 浙江大学 | Method and system for improving wireless energy transmission efficiency by using feedback tuning method |
| CN102157973A (en) * | 2011-04-08 | 2011-08-17 | 东南大学 | High-power induction charging converter of electric vehicle and control method thereof |
| CN103166474A (en) * | 2013-02-26 | 2013-06-19 | 南京航空航天大学 | Primary side series connection vice side series-parallel connection compensation non-contact resonant converter |
| CN104065178A (en) * | 2014-06-20 | 2014-09-24 | 中国矿业大学 | Three-phase load single-phase wireless power supply system and design method thereof |
| CN105680576A (en) * | 2016-03-25 | 2016-06-15 | 中国矿业大学 | Novel wireless electric energy transmission system of single-phase load |
| CN107104602A (en) * | 2017-04-17 | 2017-08-29 | 燕山大学 | The special logic formula current mode of AND-OR gate construction is unhitched coupling single-polarity PWM method |
| CN107517008A (en) * | 2017-08-18 | 2017-12-26 | 重庆大学 | Three-phase AC AC converters and its control method for radio energy transmission system |
| CN110492623A (en) * | 2018-05-15 | 2019-11-22 | 哈尔滨工业大学 | It is a kind of based on the wireless power transmission inverter for directly controlling AC-AC converter |
-
2009
- 2009-04-28 CN CN200910301907A patent/CN101540545A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860087A (en) * | 2010-05-11 | 2010-10-13 | 浙江大学 | Method and system for improving wireless energy transmission efficiency by using feedback tuning method |
| CN101860087B (en) * | 2010-05-11 | 2012-08-22 | 浙江大学 | Method and system for improving wireless energy transmission efficiency by using feedback tuning method |
| CN102157973A (en) * | 2011-04-08 | 2011-08-17 | 东南大学 | High-power induction charging converter of electric vehicle and control method thereof |
| CN103166474A (en) * | 2013-02-26 | 2013-06-19 | 南京航空航天大学 | Primary side series connection vice side series-parallel connection compensation non-contact resonant converter |
| CN103166474B (en) * | 2013-02-26 | 2017-06-30 | 南京航空航天大学 | Primary side series connection secondary series and parallel non-contact resonant converter |
| CN104065178A (en) * | 2014-06-20 | 2014-09-24 | 中国矿业大学 | Three-phase load single-phase wireless power supply system and design method thereof |
| CN105680576A (en) * | 2016-03-25 | 2016-06-15 | 中国矿业大学 | Novel wireless electric energy transmission system of single-phase load |
| CN107104602A (en) * | 2017-04-17 | 2017-08-29 | 燕山大学 | The special logic formula current mode of AND-OR gate construction is unhitched coupling single-polarity PWM method |
| CN107517008A (en) * | 2017-08-18 | 2017-12-26 | 重庆大学 | Three-phase AC AC converters and its control method for radio energy transmission system |
| CN110492623A (en) * | 2018-05-15 | 2019-11-22 | 哈尔滨工业大学 | It is a kind of based on the wireless power transmission inverter for directly controlling AC-AC converter |
| CN110492623B (en) * | 2018-05-15 | 2021-04-30 | 哈尔滨工业大学 | Wireless power transmission inverter power supply based on direct control AC-AC converter |
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Open date: 20090923 |