CN204119065U - A kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive - Google Patents
A kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive Download PDFInfo
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- CN204119065U CN204119065U CN201420249462.2U CN201420249462U CN204119065U CN 204119065 U CN204119065 U CN 204119065U CN 201420249462 U CN201420249462 U CN 201420249462U CN 204119065 U CN204119065 U CN 204119065U
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- electric locomotive
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- phase control
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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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Abstract
The utility model provides a kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive, comprises rectifier bridge, smoothing reactor L and bus Support Capacitor Cd; Rectifier bridge by two thyristors, two diodes and two diodes in parallels form; Rectification bridge output end is connected in series with smoothing reactor L, and is connected with external loading after bus Support Capacitor Cd; On the connection line that main transformer assists the first-phase of the output voltage of winding to be connected between two thyristors, on the connection line that main transformer assists the second-phase of the output voltage of winding to be connected between two diodes.The utility model transformation is simple, arranges simple, and can realize transforming the rapid translating between the split-phase motor of rear SS3 type electric locomotive and prime current transformer.
Description
Technical field
The utility model belongs to phase control rectifier circuit arrangement field, particularly relates to a kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive.
Background technology
The supply power mode of original split-phase motor supply power mode of domestic SS3 type electric locomotive, as shown in Figure 1, accepts by split-phase motor the single phase industrial frequence alternating current that electric locomotive main transformer assists winding, for auxiliary unit is powered after " splitting it " three-phase electricity.But this supply power mode exists shortcomings, such as, (1) split-phase motor voltage symmetry degree, the degree of balance, stability of powering to stand-by motor is all poor; (2) split-phase motor machine starts complicated, and potential faults is given prominence to, and reliability is poor.(3) noise of split-phase motor operation is large with vibrations.(4) split-phase motor is powered to stand-by motor, and starting current is large, big energy-consuming.(5) split-phase motor is on station section is stopped, and should not shut down, cause energy consumption, be unfavorable for energy-conservation, increases machine running noises also to station section.(6) because split-phase motor can not be with a year across-the-line starting, locomotive, when by contact line phase-splitting section, often needs to turn off each stand-by motor, then turns off split-phase motor.(7) three-phase alternating current of split-phase motor supply stand-by motor determines frequency (50Hz), and the frequency control that can not realize stand-by motor runs (temperature as according to the required wind speed of heat radiation or heater), and this is also unfavorable for energy-conservation.(8) when locomotive shed seizure test, because locomotive general assembly is debugged without single-phase Large Copacity AC power in storehouse, so during the seizure test of storehouse, the operation of general test stand-by motor, cannot do experiment to miscellaneous equipment in split-phase motor and auxiliary power supply loop.(9) quality of powering due to split-phase motor and inferior quality, locomotive is that air-conditioner set needs to set up air conditioner power source and powers, and adds the investment that electromechanical equipment assisted by locomotive, adds the cost of locomotive equipment.
In sum, split-phase motor supply power mode also exist noise greatly, not energy-conservation, three-phase alternating current output voltage is uneven and with shortcomings such as input voltage changes.The object of transformation auxiliary power supply system is to use domestic and international advanced Semiconductor Converting Technology, stop in the auxiliary power supply system of Kinds of Domestic Electric Locomotives and transform, use AuCT to substitute split-phase motor for SS4B type electric locomotive auxiliary circuit to power, and realizing on the basis that auxiliary system high-quality is powered, original structure of locomotive is not transformed into greatly to the situation of " pulling one hair and move the whole body ", produces unnecessary loss.
Utility model content
The purpose of this utility model is the phase control rectifier circuit providing a kind of SS3 auxiliary converter of electric locomotive, be intended to use AuCT to substitute split-phase motor for SS4B type electric locomotive auxiliary circuit power, and realizing on the basis that auxiliary system high-quality is powered, not needing to carry out large transformation to original structure of locomotive can complete.
The utility model is achieved in that a kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive, for being assisted by main transformer the output voltage of winding to carry out phase control rectifier, comprises rectifier bridge, smoothing reactor L and bus Support Capacitor Cd; Described rectifier bridge by two thyristors, two diodes and two diodes in parallels form; Described rectification bridge output end is connected in series with smoothing reactor L, and is connected with external loading after bus Support Capacitor Cd; On the connection line that described main transformer assists the first-phase of the output voltage of winding to be connected between two thyristors, on the connection line that described main transformer assists the second-phase of the output voltage of winding to be connected between two diodes.
Preferably, described main transformer assists the third phase of the output voltage of winding to be connected to and on connection line between two diodes, and this connection line is provided with switch.
Compared to the shortcoming and defect of prior art, the utility model has following beneficial effect: the utility model transformation is simple, arranges simple, and can realize transforming the rapid translating between the split-phase motor of rear SS3 type electric locomotive and prime current transformer.
Accompanying drawing explanation
Fig. 1 is the structural representation of original split-phase motor power supply circuits of domestic SS3 type electric locomotive in prior art;
Fig. 2 is the structural representation of the phase control rectifier circuit of the utility model SS3 auxiliary converter of electric locomotive;
Fig. 3 is the structural representation of the auxiliary converter system of SS3 type electric locomotive after the transformation related in the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, Fig. 2 is the structural representation of the phase control rectifier circuit of the utility model SS3 auxiliary converter of electric locomotive.
A phase control rectifier circuit for SS3 auxiliary converter of electric locomotive, for being assisted by main transformer the output voltage of winding to carry out phase control rectifier, comprises rectifier bridge, smoothing reactor L and bus Support Capacitor Cd; Described rectifier bridge comprises thyristor K1, thyristor K2, diode D1, diode D2, diode D3, diode D4; Described thyristor K1 thyristor K2 series connection is one group, and described diode D1, diode D2 series connection is one group, and described diode D3, diode D4 series connection is one group, three groups of described rectifier bridges of formation in parallel; Described rectification bridge output end is connected in series with smoothing reactor L, and is connected with external loading after bus Support Capacitor Cd; On the connection line that described main transformer assists the first-phase of the output voltage of winding to be connected between thyristor K1 and thyristor K2, on the connection line that described main transformer assists the second-phase of the output voltage of winding to be connected between diode D1 and diode D2.
In actual application of the present utility model, be mainly concerned with the restoration and reuse of SS3 type electric locomotive auxiliary converter system, to original split-phase motor power supply circuits of domestic SS3 type of the prior art electric locomotive, as shown in Figure 1, carry out transforming SS3 type electric locomotive auxiliary converter system as, as shown in Figure 3, comprise the stand-by motor be located in electric locomotive, also comprise the first AuCT and the second AuCT replaced by two split-phase motors in the electric locomotive of SS3 type, described AuCT comprises prime current transformer and the rear class current transformer of series connection, prime current transformer is single-phase control rectifier (this single-phase control rectifier is phase control rectifier circuit of the present utility model), rear class current transformer is made up of some shunt chopper unit, described stand-by motor is carried out division and combination load according to classification and operating mode, different inverters being distributed in described load, between described inverter and each load, being provided with the reprinting circuit (omitting view in figure) for switching reprinting.
In the utility model embodiment, stand-by motor comprises traction ventilator motor, braking blower motor, compressor electric motor, transformer blower fan and air-conditioner set; The rear class current transformer of every platform AuCT comprises U1, U2, U3 and U1B tetra-inverters, and U1B is the redundancy backup unit of U1, U2, U3; U1, U2, U3 load in first AuCT and the second AuCT is identical, U1 load 2 traction ventilator motors, U2 load 2 braking blower motors, U3 load 1 compressor motor; U1B load in first AuCT transformer blower fan and 1 air-conditioner set, 1 the transformer oil pump motor of the U1B load in the second AuCT and 1 air-conditioner set; Wherein, the inverter U1B in first, second AuCT can realize redundancy backup to other three inverters U1, U2, U3.By each contactless contactor that the automatic control inverter of controller is connected with load, and each contactless contactor be connected to each other between each inverter, just can realize automatic transfer and the redundancy backup thereof of inverter load.
In the actual application of utility model, the phase control rectifier circuit provided by the utility model, as shown in Figure 2, adopt single-phase phase controlled rectifier, switching device is thyristor, and circuit structure is single-phase semi-controlling bridge, and phase control rectifier circuit belongs to step-down rectifying circuit, after being assisted by main transformer the output of winding (former auxiliary winding exports as AC397V) to carry out phase control rectifier, the filter action through smoothing reactor L and bus Support Capacitor Cd forms busbar voltage Ud.
In further implementation process, for the ease of storehouse seizure test, in the utility model embodiment, as shown in Figure 2, described main transformer assists the third phase of the output voltage of winding to be connected on the connection line of diode D3 and diode D4, and this connection line is provided with switch.
In actual application of the present utility model, in Fig. 2, dotted line can be regarded as line switching, and the rectifier diode brachium pontis that dotted line connects is auxiliary system when doing storehouse seizure test, uses when passing into three-phase electricity.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (2)
1. a phase control rectifier circuit for SS3 auxiliary converter of electric locomotive, for being assisted by main transformer the output voltage of winding to carry out phase control rectifier, is characterized in that, comprises rectifier bridge, smoothing reactor L and bus Support Capacitor Cd; Described rectifier bridge by two thyristors, two diodes and two diodes in parallels form; Described rectification bridge output end is connected in series with smoothing reactor L, and is connected with external loading after bus Support Capacitor Cd; On the connection line that described main transformer assists the first-phase of the output voltage of winding to be connected between two thyristors, on the connection line that described main transformer assists the second-phase of the output voltage of winding to be connected between two diodes.
2. the phase control rectifier circuit of SS3 auxiliary converter of electric locomotive as claimed in claim 1, it is characterized in that, described main transformer assists the third phase of the output voltage of winding to be connected to and on connection line between two diodes, and this connection line is provided with switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249462.2U CN204119065U (en) | 2014-05-16 | 2014-05-16 | A kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249462.2U CN204119065U (en) | 2014-05-16 | 2014-05-16 | A kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive |
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| Publication Number | Publication Date |
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| CN204119065U true CN204119065U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420249462.2U Expired - Fee Related CN204119065U (en) | 2014-05-16 | 2014-05-16 | A kind of phase control rectifier circuit of SS3 auxiliary converter of electric locomotive |
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| CN (1) | CN204119065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505679A (en) * | 2016-11-28 | 2017-03-15 | 中车大连电力牵引研发中心有限公司 | Rail vehicle charger |
-
2014
- 2014-05-16 CN CN201420249462.2U patent/CN204119065U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505679A (en) * | 2016-11-28 | 2017-03-15 | 中车大连电力牵引研发中心有限公司 | Rail vehicle charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |