CN201307832Y - Modularized DC1500V composite type tractive power supply device - Google Patents
Modularized DC1500V composite type tractive power supply device Download PDFInfo
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- CN201307832Y CN201307832Y CNU2008201242614U CN200820124261U CN201307832Y CN 201307832 Y CN201307832 Y CN 201307832Y CN U2008201242614 U CNU2008201242614 U CN U2008201242614U CN 200820124261 U CN200820124261 U CN 200820124261U CN 201307832 Y CN201307832 Y CN 201307832Y
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- width modulation
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- power supply
- rectification
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Abstract
The utility model discloses a modularized DC1500V composite type tractive power supply device which relates to a power supply deflector used for the tractive power supply of railbound traffic vehicles, and other DC conversion application. A diode rectifier unit (1) and a pulse-width modulation rectifier unit (3) are connected at the AC side and the DC side to be in connection in parallel; the diode rectifier unit (1) is formed by connecting four diodes rectifying modules (2) in parallel; the pulse-width modulation rectifier unit (3) is formed by connecting four pulse-width modulation rectifying modules (4); and each pulse-width modulation rectify module (4) is formed by connecting two pulse-width modulation rectifier units in series. The tractive power supply device has the advantages of stable DC voltage, little harmonic wave pollution and feedback energy reutilization.
Description
Technical field
The utility model relates to a kind of power supply convertor assembly, is meant the modularized composite traction power set that is used for rail traffic vehicles traction power supply and the application of other ac-dc conversion.
Background technology
The urban track traffic field is the important industry that involves the interests of the state and the people that present country greatly develops, and traction power supply provides electric energy for urban track traffic, is a vital link in this field.At present, 750V and 1500V direct current supply standard are mainly adopted in urban track traffic.General 12 pulse waves or the 24 pulse wave diode rectifications of adopting, this diode rectifier is used till today history decades, its great advantage is simple, the dependable performance of apparatus structure, but its some shortcomings part also highlights day by day: it exists, and direct voltage is uncontrollable, voltage fluctuation big, to shortcomings such as the harmonic pollution of electrical network are big.In addition, municipal rail train has special operating condition:
(1) frequent Fast starting and fast braking, when starting fast, the traction power that needs is big, and the direct voltage that is obtained by diode rectification can fall rapidly;
(2) when regenerative braking, the train regenerating braking energy can only feed back to the direct current network side, causes dc voltage fluctuation, and simultaneously feedback energy being consumed with brake resistance is a kind of significant wastage.
The utility model content
Technical problem to be solved in the utility model is: the direct voltage instability, the harmonic pollution that overcome existing electric supply installation are big, and feedback energy can not utilize again, propose a kind of modularized dc 1500V mixed traction power supply equipment.
The technical solution of the utility model is: a kind of modularized composite traction power set comprises diode rectification unit (1) and PWM Rectification Power Factor (3).The diode rectification unit links to each other with DC side in AC side with the PWM Rectification Power Factor, constitutes relation in parallel.The diode rectification unit is made of the parallel connection of four diode rectification modules, and the PWM Rectification Power Factor is made of the parallel connection of four PWM rectification modules.
Described diode rectification module adopts 24 pulse wave diode rectification units, and it comprises 2 rectifier transformers and 4 diode rectifier unit, and above-mentioned two rectifier transformers are three-winding phase shift rectifier transformer, and adopts the extend-triangle connection.Above-mentioned diode rectifier element circuit structure is a not control rectifying circuit of three-phase bridge.
Transformer has a former limit winding in the described PWM rectification module, one or two secondary winding and two PWM rectifier units.The AC side of each PWM rectifier unit directly was connected on this secondary when transformer had only a secondary winding, and each PWM rectifier unit AC side was connected respectively on the secondary winding when transformer had two secondary windings.Above-mentioned two PWM rectifier units adopt cascaded structure at the direct current outlet side, and the output voltage of each module is 750V, and the external output voltage of PWM rectification module is 1500V.
PWM rectifier unit main circuit adopts two level or three level topologys in the described PWM Rectification Power Factor.
Effect of the present utility model is:
1. vehicle towed power demand is mainly provided by 24 pulse wave diode rectification units, and when required traction power increased rapidly, PWM Rectification Power Factor power output was replenished, and prevented that direct voltage from falling;
2. vehicle braking energy can pass through PWM Rectification Power Factor feedback AC network, suppresses direct voltage and raises conserve energy;
3.PWM Rectification Power Factor adopts the form of 750VPWM module series connection, has reduced the withstand voltage index during each, has reduced cost, modular topological structure is convenient to maintenance and is transformed.
4.PWM Rectification Power Factor has the harmonic reactive-load compensation function, injects AC network harmonic wave and idle to reduce the diode rectification unit;
5.PWM Rectification Power Factor is switched between different operating modes automatically, has guaranteed that direct voltage is only in fluctuation more among a small circle.
Description of drawings
Fig. 1 is the utility model modularized composite electric supply installation circuit block diagram;
Fig. 2 is 24 pulse wave diode rectification modular circuit block diagrams;
Fig. 3 is a three-winding transformer PWM rectification module circuit block diagram;
Fig. 4 is two level PWM rectification unit main circuit block diagrams;
Fig. 5 is two winding transformation PWM rectification module circuit block diagrams;
Fig. 6 is a three-level pwm rectification unit main circuit block diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment one
Among Fig. 1, present embodiment VD rated value is 1500V, and whole electric supply installation is made up of one 24 pulse wave diode rectification unit 1 and a PWM Rectification Power Factor 3.Diode rectification unit 1 links to each other with DC side in AC side with PWM Rectification Power Factor 3, constitutes relation in parallel.Diode rectification unit 1 is made of four diode rectification module 2 parallel connections, and PWM Rectification Power Factor 3 is made of four PWM rectification module 4 parallel connections.
Fig. 2 is the circuit diagram of 24 pulse wave diode rectification modules in the present embodiment, and it comprises 2 three winding rectifier transformers: rectifier transformer # 1 and rectifier transformer #2.And 4 diode rectifier unit: diode rectifier unit # 1, diode rectifier unit # 2, diode rectifier unit #3 and diode rectifier unit # 4.
This three windings rectifier transformer adopts the poured with epoxy resin dry-type transformer.The transformer connected mode all adopts Dy11d0, and in order to realize the output of 24 pulse wave rectifiers, the extend-triangle connection is adopted on two former limits of transformer.
Fig. 3 is the circuit diagram of present embodiment PWM rectification module.This PWM rectification module comprises a three-winding pair of transformer with split winding and two PWM rectifier units, the input of two PWM rectifier units is connected on respectively on dual low voltage transformer secondary winding # 1 and the secondary winding # 2, the output of two PWM rectifier units is connected in series, the direct voltage of each PWM rectifier unit output is 750V, and the external output voltage of whole PWM rectification module is 1500V.
Transformer adopting poured with epoxy resin dry-type transformer, a former limit winding, two secondary windings, former limit input voltage is 10kV, secondary output voltage 400V, the transformer connected mode is Yd11d11.Invade electric supply installation in order to prevent that thunder and lightning from disturbing, need install lightning protection device additional at place, the former limit of transformer.
Fig. 4 is the circuit diagram of present embodiment PWM rectifier unit.PWM rectifier unit main circuit structure adopts two traditional level circuit topologys, its member comprises: the input of PWM rectifier unit is connected on the secondary winding 1 of dual low voltage transformer, latter linked be 3 filter capacitor Cr, three ac filter reactance L are serially connected on the three-phase branch road.By the three phase bridge circuit that 3 power intelligent modules constitute, the parallel connection direct side supports capacitor C on dc output end P, N.
Embodiment two
Among Fig. 1, present embodiment VD rated value is 1500V, and whole electric supply installation is made up of one 24 pulse wave diode rectification unit 1 and a PWM Rectification Power Factor 3.Diode rectification unit 1 links to each other with DC side in AC side with PWM Rectification Power Factor 3, constitutes relation in parallel.Diode rectification unit 1 is made of four diode rectification module 2 parallel connections, and PWM Rectification Power Factor 3 is made of four PWM rectification module 4 parallel connections.
Fig. 2 is the circuit diagram of 24 pulse wave diode rectification modules in the present embodiment, and it comprises 2 three winding rectifier transformers: rectifier transformer # 1 and rectifier transformer #2.And 4 diode rectifier unit: diode rectifier unit # 1, diode rectifier unit # 2, diode rectifier unit #3 and diode rectifier unit # 4.
This three windings rectifier transformer adopts the poured with epoxy resin dry-type transformer.The transformer connected mode all adopts Dy11d0, and in order to realize the output of 24 pulse wave rectifiers, the extend-triangle connection is adopted on two former limits of transformer.
Fig. 5 is the circuit diagram of present embodiment PWM rectification module.This PWM rectification module comprises a dry-type transformer and two PWM rectifier units, the input of two PWM rectifier units is connected on the dry-type transformer secondary winding # 1 together, the output of two PWM rectifier units is connected in series, the direct voltage of each PWM rectifier unit output is 750V, and the external output voltage of whole PWM rectification module is 1500V.
Fig. 6 is the circuit diagram of present embodiment PWM rectification unit, adopts three level topologys in the present embodiment, and the input of PWM rectification unit is received on the secondary winding # 1 of dry-type transformer, meets filter capacitor Cr afterwards, and filter inductance L is concatenated on the three-phase circuit.Tri-level circuit adopts 12 IGBT:T11～T14, T21～T24, T31～T34 and 6 diode: D11, T12, D21, D22, D31, D32 form, and be shown in Figure 6, after equalizing capacitance C1, the C2 series connection, support capacitor C with direct current and be connected in parallel on dc output end P, the N.
Claims (3)
1. modularized dc 1500V mixed traction power supply equipment, this device comprises diode rectification unit (1), it is characterized in that:
Diode rectification unit (1) links to each other with DC side in AC side with pulse-width modulation Rectification Power Factor (3), constitutes relation in parallel; Diode rectification unit (1) constitutes by four diode rectification modules (2) are in parallel; Pulse-width modulation Rectification Power Factor (3) is adjusted flow module (4) formation in parallel by four pulsewidths, and each pulsewidth is adjusted flow module (4) and is made of two pulse width modulation rectifier units in series.
2. a kind of modularized dc 1500V mixed traction power supply equipment as claimed in claim 1 is characterized in that: transformer has a former limit winding, one or two secondary winding in the described pulse-width modulation Rectification Power Factor; The AC side of each pulse width modulation rectifier unit directly links to each other when having only a secondary winding, and each pulse width modulation rectifier unit AC side was connected respectively on the secondary winding when two secondary windings were arranged.
3. a kind of modularized dc 1500V mixed traction power supply equipment as claimed in claim 3 is characterized in that: pulse width modulation rectifier unit main circuit adopts two level or three level topologys in the described pulse-width modulation Rectification Power Factor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201242614U CN201307832Y (en) | 2008-12-05 | 2008-12-05 | Modularized DC1500V composite type tractive power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201242614U CN201307832Y (en) | 2008-12-05 | 2008-12-05 | Modularized DC1500V composite type tractive power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307832Y true CN201307832Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201242614U Expired - Lifetime CN201307832Y (en) | 2008-12-05 | 2008-12-05 | Modularized DC1500V composite type tractive power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307832Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103081335A (en) * | 2010-04-08 | 2013-05-01 | 阿尔斯通技术有限公司 | Hybrid HVDC converter |
| CN104377716A (en) * | 2014-12-12 | 2015-02-25 | 南车株洲电力机车有限公司 | Method for controlling charging and discharging of line energy storage device |
| CN105052031A (en) * | 2012-11-29 | 2015-11-11 | 通用电气公司 | High voltage direct current (HVDC) converter system and method of operating the same |
| CN105846513A (en) * | 2016-05-30 | 2016-08-10 | 谢宗洺 | Complete-set charging device for energy-saving electric vehicle |
-
2008
- 2008-12-05 CN CNU2008201242614U patent/CN201307832Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103081335A (en) * | 2010-04-08 | 2013-05-01 | 阿尔斯通技术有限公司 | Hybrid HVDC converter |
| CN103081335B (en) * | 2010-04-08 | 2016-01-06 | 阿尔斯通技术有限公司 | Mixing HVDC converter |
| CN105052031A (en) * | 2012-11-29 | 2015-11-11 | 通用电气公司 | High voltage direct current (HVDC) converter system and method of operating the same |
| CN104377716A (en) * | 2014-12-12 | 2015-02-25 | 南车株洲电力机车有限公司 | Method for controlling charging and discharging of line energy storage device |
| CN104377716B (en) * | 2014-12-12 | 2017-01-18 | 南车株洲电力机车有限公司 | Method for controlling charging and discharging of line energy storage device |
| CN105846513A (en) * | 2016-05-30 | 2016-08-10 | 谢宗洺 | Complete-set charging device for energy-saving electric vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |