CN101093964A - Large power inverter circuit with multiple electrical levels of magnetic suspended train - Google Patents
Large power inverter circuit with multiple electrical levels of magnetic suspended train Download PDFInfo
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- CN101093964A CN101093964A CN 200710043794 CN200710043794A CN101093964A CN 101093964 A CN101093964 A CN 101093964A CN 200710043794 CN200710043794 CN 200710043794 CN 200710043794 A CN200710043794 A CN 200710043794A CN 101093964 A CN101093964 A CN 101093964A
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- 238000005339 levitation Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
In the inverter circuit (IC), current is inputted to bridge arm of high power tube. A freewheeling diode is inverted connected to back of each high power tube in series. Two clamping diodes inverted each other and filtering capacitance is connected to the output end in parallel. Two sets of positive pulses with 180 degrees phase difference and different widths are inputted to one bridge arm, and positive negative pulses with zero electrical level are outputted. Advantages are: maximum bearing voltage of IC in three levels is as Ud, which is just half of voltage of IC in two levels; compared with IC in two levels, common mode voltage generated by the output voltage at end of electrical motor is smaller; under same switch frequency and control mode, harmonic wave of output voltage or current from IC is also smaller; under same condition of insulated and withstanding voltage, voltage in middle DC sector is raised for one time, and capacity of inverter is also raised for one time.
Description
Technical field
The present invention relates to a kind of inverter circuit, particularly a kind of powerful inverter circuit of many level of magnetic-levitation train.
Background technology
Along with the invention of high-power semiconductor switch device and the progress and the development of convertor circuit, power electronic technology is arisen at the historic moment, and mainly contains two branches: manufacture technique of power electronic device and electric electronic current change technology.Electric electronic current change technology utilizes power electronic device to constitute power transformation circuit and it is controlled, and has obtained in the electric traction field widely and has used.Wherein " AC-DC-AC " form is a kind of unsteady flow structure comparatively commonly used, it mainly is made up of rectifier, intermediate dc link and inverter three parts, earlier alternating current is become direct current by rectifier, by inverter dc inversion is become to exchange again, reached the purpose that frequency, amplitude, phase place to three-phase alternating current are regulated thereby add some regulating and controlling technology.In two level inverter circuits of routine, the on off state of power device has only two kinds, and the output voltage of current transformer also just has only two kinds :+Ud and-Ud.
Summary of the invention
Technical problem of the present invention is the powerful inverter circuit of many level that a kind of magnetic-levitation train of three level will be provided.
In order to solve above technical problem, the invention provides a kind of powerful inverter circuit of many level of magnetic-levitation train, electric current input high power valve brachium pontis, oppositely be connected in series a fly-wheel diode behind each high power valve, the clamp diode and the filter capacitor of the reversal connection each other of output and di-, import two groups of positive pulses that differ the different in width of 180 degree at a brachium pontis, output has the positive negative pulse stuffing of zero level.
Superior effect of the present invention is: the maximum of two level inverter circuits bear voltage for (+Ud)-(Ud)=2Ud, and the maximum of tri-level inversion circuit bear voltage for (+Ud)-0=Ud or 0-(Ud)=Ud, be that voltage that the tri-level inversion circuit bears only is half of two level inverter circuit voltages, the common-mode voltage that the motor side of output voltage produces is also little than two level inverter circuits, under same dielectric voltage withstand condition, the intermediate dc link voltage improves 1 times, 1 times of the also corresponding raising of the capacity of inverter, under same switching frequency and control mode, the harmonic wave of three-level current transformer output voltage or electric current is also less than two level current transformers.
Description of drawings
Fig. 1 is a circuit diagram of the present invention;
Fig. 2 is input of the present invention, output pulse diagram;
The number in the figure explanation
The 1-high-power switch tube; The 2-fly-wheel diode;
The 3-clamp diode; The 4-filter capacitor.
Embodiment
See also shown in the accompanying drawing, the invention will be further described.
Be equipped with two high power traction module in the positive traction substation of magnetic-levitation train tractive power supply system dragon, be equipped with two high power traction module and a middle power traction module in the traction substation of pudong airport, be equipped with a low-power traction module in the servicing center, the high power traction module, be called for short the high power module, form by one group of (2 or 3) high power converter cell, the high power module is used in the demanding occasion of driving power, for example needs height to add/the traction power supply interval of slowing down power(SDP) and high-speed cruising.The nucleus equipment of high power converter cell is its power section, and it is mainly by rectifier, and intermediate dc link and inverter are formed, and constitute the unsteady flow structure of " AC-DC-AC " form.It is earlier the industrial-frequency alternating current of two groups of three-phase 1.084kV of input transformer, by rectifier become ± 1.5～± direct current of 2.5kV, and then by two the cover inverters this direct current is transformed into the controlled three-phase alternating current of two class frequencys, amplitude and phase place, these two groups of alternating currents are through the required alternating current of output transformer coupling becoming traction, by output switch apparatus, feeder cable and switchyard, give the long stator section power supply at the current place of train, the tractor-trailer train operation.
Shown in Fig. 1 circuit diagram of the present invention, the invention provides a kind of powerful inverter circuit of many level of magnetic-levitation train, electric current input high-power switch tube Bridge 1 arm, each high-power switch tube 1 back is serial connection one fly-wheel diode 2 oppositely, the clamp diode 3 and the filter capacitor 4 of the reversal connection each other of output and di-, shown in Fig. 2 input of the present invention, output pulse diagram, import two groups of positive pulses that differ the different in width of 180 degree at a brachium pontis, output has the positive negative pulse stuffing of zero level.4 high power valves 1 are VT
1, VT
1', VT
4, VT
4', 4 fly-wheel diodes 2 are VD
1, VD
1', VD
4, VD
4' and 2 clamp diodes be VD
A, VD
A'.
With one of them brachium pontis is example, VT
1, VT
4Triggering signal be U
1, U
4, VT
1', VT
4' triggering signal be U
1', U
4' shown in Fig. 2 input of the present invention, output pulse diagram, U
1With U
4', U
4With U
1' the signal complementation, and U
1With U
4Signal mutual deviation 180 degree are worked as VT
1, VT
1' (or VD
1, VD
1') conducting, VT
4, VT
4' when turn-offing, the potential difference between A point and M point is+Ud output V
Ac=+Ud; Work as VT
4, VT
4' (or VD
4, VD
4') conducting, VT
1, VT
1' when turn-offing, the potential difference between A point and M point is-Ud output V
Ac=-Ud; Work as VT
1, and VT
4Turn-off VT
1' and VT
4' during conducting, A point current potential is clamped to DC power supply midpoint potential M, output V
Ac=0, obtain V shown in Fig. 2
AcWaveform, realized the inverter circuit of three level.
Claims (1)
1, a kind of powerful inverter circuit of many level of magnetic-levitation train, it is characterized in that: electric current input high power valve brachium pontis, oppositely be connected in series a fly-wheel diode behind each high power valve, the clamp diode and the filter capacitor of the reversal connection each other of output and di-, import two groups of positive pulses that differ the different in width of 180 degree at a brachium pontis, output has the positive negative pulse stuffing of zero level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710043794 CN101093964A (en) | 2007-07-13 | 2007-07-13 | Large power inverter circuit with multiple electrical levels of magnetic suspended train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710043794 CN101093964A (en) | 2007-07-13 | 2007-07-13 | Large power inverter circuit with multiple electrical levels of magnetic suspended train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101093964A true CN101093964A (en) | 2007-12-26 |
Family
ID=38992051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710043794 Withdrawn CN101093964A (en) | 2007-07-13 | 2007-07-13 | Large power inverter circuit with multiple electrical levels of magnetic suspended train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101093964A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494424B (en) * | 2008-08-05 | 2011-01-19 | 深圳市盛弘电气有限公司 | Control method for tri-level inverter |
| CN103346690A (en) * | 2013-07-05 | 2013-10-09 | 华为技术有限公司 | Multi-level inverter and power supply system |
| CN104113227A (en) * | 2013-04-22 | 2014-10-22 | 富士电机株式会社 | Multilevel conversion circuit |
| CN104272574A (en) * | 2012-05-10 | 2015-01-07 | 东芝三菱电机产业系统株式会社 | Electric power conversion device |
| CN112810453A (en) * | 2021-01-08 | 2021-05-18 | 中车青岛四方机车车辆股份有限公司 | Non-contact power supply system and hanging train |
-
2007
- 2007-07-13 CN CN 200710043794 patent/CN101093964A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494424B (en) * | 2008-08-05 | 2011-01-19 | 深圳市盛弘电气有限公司 | Control method for tri-level inverter |
| CN104272574A (en) * | 2012-05-10 | 2015-01-07 | 东芝三菱电机产业系统株式会社 | Electric power conversion device |
| CN104272574B (en) * | 2012-05-10 | 2017-09-29 | 东芝三菱电机产业系统株式会社 | Power inverter |
| CN104113227A (en) * | 2013-04-22 | 2014-10-22 | 富士电机株式会社 | Multilevel conversion circuit |
| CN104113227B (en) * | 2013-04-22 | 2018-04-10 | 富士电机株式会社 | More level shifting circuits |
| CN103346690A (en) * | 2013-07-05 | 2013-10-09 | 华为技术有限公司 | Multi-level inverter and power supply system |
| CN103346690B (en) * | 2013-07-05 | 2016-03-30 | 华为技术有限公司 | A kind of multi-electrical level inverter and electric power system |
| US9385632B2 (en) | 2013-07-05 | 2016-07-05 | Huawei Technologies Co., Ltd. | Multi-level inverter and power supply system |
| CN112810453A (en) * | 2021-01-08 | 2021-05-18 | 中车青岛四方机车车辆股份有限公司 | Non-contact power supply system and hanging train |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |