CN201120854Y - Suspension type current transformer of magnetic suspension train - Google Patents
Suspension type current transformer of magnetic suspension train Download PDFInfo
- Publication number
- CN201120854Y CN201120854Y CNU2007200162618U CN200720016261U CN201120854Y CN 201120854 Y CN201120854 Y CN 201120854Y CN U2007200162618 U CNU2007200162618 U CN U2007200162618U CN 200720016261 U CN200720016261 U CN 200720016261U CN 201120854 Y CN201120854 Y CN 201120854Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
- Inverter Devices (AREA)
Abstract
The utility model discloses a suspending current transformer for the maglev vehicle, which comprises a front end protection circuit. The front end protection circuit is input by a rated direct current voltage of 330 VDC and connected to a DC/AC power module through a main contactor, a charging contactor and a voltage dependent resistor, the output of the power module is connected to an alternating-current output circuit, and the range of the output fundamental harmonic line voltage is 0 to 220 VAC, the range of the output fundamental harmonic line voltage frequency is 0 to 220 Hz, the maximum output current is 680 A. The DC/AC power module is controlled by a controlling circuit, which forms a speed closed-loop type SVPWM controlling system and is also provided with the protection functions such as overpressure, under-voltage, over current, short circuit and overheat etc. The communication with ground control stations of the whole traction converter is realized through an MVB network card.
Description
Technical field
The utility model relates to the dc power input with possibility of reversal and is transformed to AC power output, belongs to the traction power source of low speed magnetic suspension train.
Background technology
One of gordian technique of low speed magnetic suspension train is the design and the control of traction convertor.The specified input voltage of traction convertor is 330VDC, output first-harmonic line voltage range 0-220VAC, and output first-harmonic line electric voltage frequency scope 0-200Hz, maximum current output 680A drives two monolateral short preliminary linear induction motor parallel operations.
For the control of low speed magnetic suspension train traction convertor, generally all adopt the control method of the normal value of V/F=.Because magnetic-levitation train adopts preliminary linear induction motor to drive, the gap between its primary and secondary is bigger, cause the dynamic characteristics of magnetic-levitation train tractive current transformer bad, and power factor is lower, thus traction convertor is improved imperative.
Summary of the invention
Proposition of the present utility model is intended to design the traction convertor of a kind of suitable present stage magnetic-levitation train operating mode, adopts MVB network interface card and magnetic-levitation train miscellaneous equipment to carry out communication simultaneously, and then realizes the closed-loop speed control under the SYPWM mode.
Technical solution of the present utility model is achieved in that
A kind of magnetic suspension train suspension type current transformer, comprise the front-end protection circuit and exchange output circuit, it is characterized in that also comprising DC/AC power module circuit, control circuit and MVB network interface card, described front-end protection circuit, import specified 330V vdc by the 3rd rail, be converted to three plase alternating current and insert the linear motor of being with alignment sensor through the DC/AC power module circuit; Wherein said DC/AC power module circuit is made of IGBT three phase inverter bridge and driving circuit thereof, and be connected with the inversion control plate of control system by optical fiber, the inversion control plate is electrically connected with signal-processing board, signal-processing board again respectively with the electric current that exchanges output circuit, voltage sensor and the power sensor that is used to detect medium voltage keep being electrically connected; On the described inversion control plate central processor CPU is arranged, CPU will pick up from after the signal value of the electric current, voltage sensor and the power sensor that exchange output circuit is calculated and handles, export suitably pwm pulse signal and send into driving circuit, amplify the back in order to controlling the break-make of IGBT device through it again, and linear motor is carried out voltage and frequency control; Simultaneously, according to the alignment sensor speed signal that the MVB network interface card provides, realize closed-loop speed control to the SVPWM mode of linear motor.
Described front-end protection circuit is made up of main contactor K2, charging contactor K1, charging resistance R, support capacitor C 1 and pizo-resistance KPB; supporting capacitor C 1 and pizo-resistance KPB is connected on respectively between the positive and negative terminal that hangs down the inductance composite bus bar; charging contactor K1 and charging resistance R constitute soft starting circuit, and main contactor K2 is its two ends of cross-over connection then.
Described IGBT inverter bridge divides work 3 modules by 6 IGBT devices, and each module is formed a brachium pontis by 2 IGBT, and 2 brachium pontis compose in parallel three phase inverter bridge, and the grid of IGBT links to each other with its driving circuit, and driving circuit provides drive signal for it.
Compared with prior art, advantage of the present utility model is by adopting the IGBT three phase inverter bridge to realize the orthogonal conversion as the DC/AC power model and being used for voltage and frequency control to traction motor, realized the closed-loop speed control under the SVPWM mode simultaneously, thereby high dynamic performance, High Power Factor and high reliability have been obtained.
Description of drawings
The utility model drawings attached 2 width of cloth, wherein:
Fig. 1 is a circuit structure block diagram of the present utility model;
Fig. 2 is an electric wiring scheme drawing of the present utility model.
In the drawings: 1, front-end protection circuit 2, power cell and driving circuit 3, interchange output circuit 4, control circuit 5, MVB network interface card.
The specific embodiment
A kind of magnetic suspension train suspension type current transformer as depicted in figs. 1 and 2; comprise front-end protection circuit 1; the input rated direct voltage is 330VDC; be connected to DC/AC power model 2 through main contactor K1, charging contactor K2, pizo-resistance KPB; the output of power model is connected to and exchanges output circuit 3; the output voltage that exchanges output circuit is a three plase alternating current, and maximum voltage is 220VAC, reference frequency output 0-200Hz.The control of DC/AC power model 2 controlled circuit 4 forms speed closed loop type SVPWM control system, and has overvoltage, under-voltage, overcurrent, short circuit, defencive function such as overheated.Whole traction convertor is by the communication of MVB network interface card 5 realizations with the ground controlling platform.Its principle of work is: input direct voltage provides vdc through input protection circuit 1 for power unit module.Wherein main contactor K2 is responsible for the break-make of power circuit; Charging contactor K1 and charging resistance R constitute the input soft starting circuit, occur big surge current when preventing to start shooting, thereby reduce the centre is supported the impact of capacitor C 1.Input direct voltage is 1 charging of midship mounting capacitor C by R, and when voltage reached certain value, closed K1 excised R; KPB is a pizo-resistance, and its effect is when input direct voltage generation wide fluctuations, and protection rear end power unit module is not damaged; LV is a voltage sensor, is used to detect medium voltage.
Power model and drive circuit unit 2 comprise: the IGBT module of 6 600V/600A, and each IGBT module comprises 2 IGBT, forms a brachium pontis, 6 IGBT modules compose in parallel 3 phase inverter bridge for 2 one group; C2, C3, C4 are that surging absorbs electric capacity, the peak voltage when inhibition IGBT turns on and off; Driving circuit is mainly the drive signal that IGBT provides break-make.
The output AC circuit mainly comprises 3 AC voltage sensors and 3 AC current sensors, voltage sensor is mainly measured the phase voltage of three-phase alternating voltage, current sensor is mainly measured the phase current of three-phase alternating current, and observed reading is delivered to signal-processing board.
System links with the ground controlling platform by MVB network interface card 5.On the one hand, traction convertor is passed to the locomotive control platform with self-operating information, and on the other hand, traction convertor is accepted ground controlling platform control command, realizes the co-operative control of whole magnetic-levitation train.
Claims (3)
1, a kind of magnetic suspension train suspension type current transformer, comprise front-end protection circuit (1) and exchange output circuit (3), it is characterized in that also comprising DC/AC power module circuit (2), control circuit (4) and MVB network interface card (5), described front-end protection circuit (1), import specified 330V vdc by the 3rd rail, be converted to three plase alternating current and insert the linear motor of being with alignment sensor through DC/AC power module circuit (2); Wherein said DC/AC power module circuit (2) is made of IGBT three phase inverter bridge and driving circuit thereof, and be connected with the inversion control plate of control system by optical fiber, the inversion control plate is electrically connected with signal-processing board, signal-processing board again respectively with the electric current that exchanges output circuit, voltage sensor and the power sensor that is used to detect medium voltage keep being electrically connected; On the described inversion control plate central processor CPU is arranged, CPU will pick up from after the signal value of the electric current, voltage sensor and the power sensor that exchange output circuit is calculated and handles, export suitably pwm pulse signal and send into driving circuit, amplify the back in order to controlling the break-make of IGBT device through it again, and linear motor is carried out voltage and frequency control; Simultaneously, according to the alignment sensor speed signal that MVB network interface card (5) provides, realize closed-loop speed control to the SVPWM mode of linear motor.
2, magnetic suspension train suspension type current transformer according to claim 1; it is characterized in that described front-end protection circuit by main contactor K2, charging contactor K1, charging resistance R, support capacitor C 1 and pizo-resistance KPB forms; supporting capacitor C 1 and pizo-resistance KPB is connected on respectively between the positive and negative terminal that hangs down the inductance composite bus bar; charging contactor K1 and charging resistance R constitute soft starting circuit, and main contactor K2 is its two ends of cross-over connection then.
3, magnetic suspension train suspension type current transformer according to claim 2, it is characterized in that described IGBT inverter bridge is by 3 modules of 6 IGBT devices branch works, each module is formed a brachium pontis by 2 IGBT, 2 brachium pontis compose in parallel three phase inverter bridge, the grid of IGBT links to each other with its driving circuit, and driving circuit provides drive signal for it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200162618U CN201120854Y (en) | 2007-11-27 | 2007-11-27 | Suspension type current transformer of magnetic suspension train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200162618U CN201120854Y (en) | 2007-11-27 | 2007-11-27 | Suspension type current transformer of magnetic suspension train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201120854Y true CN201120854Y (en) | 2008-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200162618U Expired - Fee Related CN201120854Y (en) | 2007-11-27 | 2007-11-27 | Suspension type current transformer of magnetic suspension train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201120854Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739099A (en) * | 2012-05-24 | 2012-10-17 | 青岛四方车辆研究所有限公司 | Auxiliary power device of straddle-type monorail train |
| CN103199497A (en) * | 2012-01-06 | 2013-07-10 | 中国北车股份有限公司大连电力牵引研发中心 | Control circuit of locomotive converter |
| CN103812376A (en) * | 2012-11-07 | 2014-05-21 | 中国北车股份有限公司 | Urban rail vehicle auxiliary inverter and urban rail vehicle |
| CN107380008A (en) * | 2017-08-29 | 2017-11-24 | 于学禄 | A kind of Auxiliary support guidance method of wheel track vehicle |
| CN111327102A (en) * | 2018-12-13 | 2020-06-23 | 中车唐山机车车辆有限公司 | Capacitor box of magnetic suspension train, magnetic suspension train and voltage stabilization control method |
-
2007
- 2007-11-27 CN CNU2007200162618U patent/CN201120854Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199497A (en) * | 2012-01-06 | 2013-07-10 | 中国北车股份有限公司大连电力牵引研发中心 | Control circuit of locomotive converter |
| CN103199497B (en) * | 2012-01-06 | 2015-11-25 | 中国北车股份有限公司 | The control circuit of locomotive converter |
| CN102739099A (en) * | 2012-05-24 | 2012-10-17 | 青岛四方车辆研究所有限公司 | Auxiliary power device of straddle-type monorail train |
| CN103812376A (en) * | 2012-11-07 | 2014-05-21 | 中国北车股份有限公司 | Urban rail vehicle auxiliary inverter and urban rail vehicle |
| CN107380008A (en) * | 2017-08-29 | 2017-11-24 | 于学禄 | A kind of Auxiliary support guidance method of wheel track vehicle |
| CN111327102A (en) * | 2018-12-13 | 2020-06-23 | 中车唐山机车车辆有限公司 | Capacitor box of magnetic suspension train, magnetic suspension train and voltage stabilization control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NORTH CHINA CO. Free format text: FORMER OWNER: XIE BUMING Effective date: 20080912 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080912 Address after: Beijing City, Fengtai District Fong City Park District building 15, zip code: 100076 Patentee after: China CNR Corporation Limited Address before: R & D center of Dalian Locomotive & Rolling Stock Co., Ltd., No. 51 middle The Strip, Liaoning, Dalian 116022, China Patentee before: Xie Buming |
|
| ASS | Succession or assignment of patent right |
Owner name: CHINA CNR CORPORATION LIMITED DALIAN ELECTRIC TRAC Free format text: FORMER OWNER: NORTH CHINA CO. Effective date: 20090410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090410 Address after: No. 51, middle The Strip, Shahekou District, Liaoning, Dalian Province, China: 116022 Patentee after: Dalian Electric Traction Research & Development Center of China North Locomotive Co., Ltd. Address before: Beijing City, Fengtai District Fong City Park District building 15, zip code: 100076 Patentee before: China CNR Corporation Limited |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20111127 |