CN106160194B - Electric locomotive accessory power supply crosses the control method of split-phase uninterrupted power supply - Google Patents
Electric locomotive accessory power supply crosses the control method of split-phase uninterrupted power supply Download PDFInfo
- Publication number
- CN106160194B CN106160194B CN201610595592.5A CN201610595592A CN106160194B CN 106160194 B CN106160194 B CN 106160194B CN 201610595592 A CN201610595592 A CN 201610595592A CN 106160194 B CN106160194 B CN 106160194B
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- Prior art keywords
- locomotive
- power supply
- split
- phase
- winding
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/067—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems using multi-primary transformers, e.g. transformer having one primary for each AC energy source and a secondary for the loads
Abstract
The invention discloses the control methods that a kind of electric locomotive accessory power supply crosses split-phase uninterrupted power supply, it is directly powered to locomotive assisting system using main transformer independent winding, main circuit breaker disconnects, contact net electric energy is isolated, traction electric machine regenerating braking energy passes to auxiliary winding by transformer coupled by tractive winding, the control signal sender that split-phase auxiliary system does not have a power failure was used as by locomotive microcomputer TCMS, using this control method, the continuous Electricity Functional of split-phase can also be realized using the independently-powered electric locomotive of transformer auxiliary winding in conjunction with locomotive control logic, circuit structure is simple.
Description
Technical field
The present invention relates to electric locomotive accessory power supplys to cross split-phase technical field.
Background technology
The auxiliary power supply of AC transmission electric power locomotive is broadly divided into two kinds at present：One kind is using main transformer independent winding
It directly powers to locomotive assisting system, straight-friendship type AuCT that another kind is powered using traction intermediate loop, by drawing
Middle dc voltage direct inversion in circuit is powered auxiliary system after being then depressured by step-down isolation transformer.
More simple in structure than intermediate loop power supply auxiliary system, the light-weight efficient advantage using the auxiliary system of independent winding power supply,
But main circuit breaker disconnects when locomotive is because crossing split-phase, auxiliary power supply system power failure.
As shown in Figure 1, after main circuit breaker of electric locomotive is closed, contact net AC25kV voltages successively pass through main transformer primary side
Winding, auxiliary winding and AuCT APU power to locomotive assisting system, when locomotive is by split-phase section, main open circuit
Device disconnects, and secondary power system powers off at this time, after locomotive is closed again by split-phase section main circuit breaker, auxiliary system power supply
Restore.Because tens kilometers of electric locomotive interval will be there are one phase-separating section, so locomotive secondary power system is in frequent
Start and stop state.Influence component life.
As shown in Fig. 2, using straight-friendship type AuCT of traction intermediate loop power supply, by drawing circuit intermediate dc
The direct inversion of voltage is powered auxiliary system after being then depressured by step-down isolation transformer.Such mode, machine
When by split-phase section, main circuit breaker disconnects vehicle, and traction electric machine is in regenerative braking (power generation) pattern, can be auxiliary system
Power supply, but need to increase in current transformer the hardware devices such as contactor, detection sensor, conversion switching switch simultaneously in software
It is also required to accordingly adjust in logic, it is complicated, current transformer is of high cost, equipment weight.
Invention content
The present invention provides the control method that a kind of electric locomotive accessory power supply crosses split-phase uninterrupted power supply, real-time in conjunction with locomotive
With operating mode, control locomotive power module input or excision realize that ancillary equipment is adopted under the premise of ensuring locomotive operation safety
It is powered with transformer auxiliary winding, uninterrupted power supply control is realized when passing through phase-separating section.
The technical solution adopted in the present invention is the control method that electric locomotive accessory power supply crosses split-phase uninterrupted power supply, is adopted
It is directly powered to locomotive assisting system with main transformer independent winding, main circuit breaker disconnects, and contact net electric energy is isolated, traction electricity
Machine regenerating braking energy passes to auxiliary winding by transformer coupled by tractive winding, and split-phase was used as by locomotive microcomputer TCMS
The control signal sender that auxiliary system does not have a power failure, the control method include the following steps：
A, start；
B, setting locomotive assisting system does not have a power failure minimum speed V1=(50X1000/ train marshalling list quality m) km/h, the limit
Speed V2=(30X1000/ train marshalling list quality m) km/h；
C, locomotive overconfidence T is detected, d is entered step；
D, judge whether locomotive overconfidence T is 1, as T=1, enter step e, otherwise return to step c；
E, detection locomotive speed V；
F, judge that the do not have a power failure size of minimum speed V1 of locomotive speed V and locomotive assisting system is entered step as V1≤V
G, otherwise return to step c；
G, adjustment traction convertor TCU enters uninterrupted power supply pattern；
H, locomotive speed V is detected, step f and step i are respectively enterd；
I, the size for judging locomotive speed V and limit velocity V2 enters step j as V≤V2；Otherwise k is entered step；
J, uninterrupted power supply pattern is exited；
K, detection net pressure restores signal；
L, adjustment traction convertor TCU and AuCT APU enters normal power supply pattern；
M, terminate.
The locomotive overconfidence T includes automatically crossing the anticipating signal of split-phase and semi-automatic overconfidence number, machine
Vehicle overconfidence T is for activating uninterrupted power supply pattern.
The beneficial effects of the invention are as follows：Using this control program, transformer auxiliary winding is used in conjunction with locomotive control logic
Independently-powered electric locomotive can also realize that the continuous Electricity Functional of split-phase, circuit structure were simple.
Description of the drawings
Fig. 1 is that electric locomotive ancillary equipment uses transformer independent winding power supply the principle figure.
Fig. 2 is that electric locomotive ancillary equipment uses intermediate dc loop power supply schematic diagram.
Fig. 3 is the control method flow chart that electric locomotive accessory power supply of the present invention crosses split-phase uninterrupted power supply.
Specific implementation mode
Invention is described further in conjunction with attached drawing 1 to attached drawing 3, split-phase auxiliary system was used as by locomotive microcomputer TCMS
Unite the control signal sender that does not have a power failure, locomotive microcomputer TCMS crossed according to locomotive the setting that split-phase do not have a power failure, differentiate locomotive speed,
After the information such as overconfidence number and Locomotive Converter operating mode split-phase is transmitted across to traction convertor TCU, AuCT APU
The instruction not having a power failure.
Locomotive assisting system does not have a power failure minimum speed V1, is set as (50X1000/ train marshalling list quality m) km/h, limit speed
It is that (30X1000/ train marshalling list quality m) km/h are automatically exited from uninterrupted when locomotive speed V is less than limit velocity V2 to spend V2
Powering mode.
Overconfidence number, which has, automatically crosses the anticipating signal of split-phase and semi-automatic overconfidence number, and split phase signal activation does not stop
Electricity Functional, crossing after split-phase exits in the process cannot be again introduced into.
CI (general name of traction convertor TCU and AuCT APU) locomotive microcomputer TCMS received split-phase and did not had a power failure
When instruction, according to Locomotive Converter TCU working methods, enter again from a upper operating mode (may be inertia, traction or regeneration)
Raw operating mode, CI sends the main break signal of locomotive microcomputer TCMS disjunctions after regenerative braking is established, and then passes through in main open absolutely
Traction electric machine regenerating braking energy is passed to auxiliary winding by transformer primary side, secondary side coupling from tractive winding.When locomotive passes through
CI receives net pressure signal after crossing phase-separating section, starts CI after adjusting primary voltage of transformer and net pressure same-phase adjustment and is sent to
Locomotive microcomputer TCMS closes co-host break signal, and operating mode that CI is reentered by regenerative braking before split-phase (may be inertia, traction or again
It is raw).If being set as split-phase power-off or speed signal being unsatisfactory for the requirement that do not have a power failure, locomotive microcomputer TCMS, which is directly transmitted, unloads information carrying
Number give CI.
AuCT APU received split-phase do not have a power failure instruction when, maintain operation.If being set as split-phase power-off or speed
Degree is unsatisfactory for the requirement that do not have a power failure, then locomotive microcomputer TCMS directly transmits unloader signal and gives AuCT APU.
The purpose of detection locomotive speed is twice：It is by the energy of traction electric machine regenerative braking when uninterrupted function
Auxiliary winding is passed to by tractive winding by transformer primary side, secondary side coupling, locomotive speed can reduce, and pass through 2 times (real-time)
Detection locomotive speed can avoid the non-normal stop caused by locomotive speed is too low,
Normal locomotive net surveys power supply：Contact net electric energy is by main circuit breaker, transformer primary side to tractive winding, auxiliary winding
Power supply.Power down function is not powered：Main circuit breaker disconnects, and contact net electric energy is isolated, and traction electric machine regenerating braking energy is logical at this time
Cross it is transformer coupled auxiliary winding is passed to by tractive winding, meet auxiliary unit continue working the needs of.
Claims (2)
1. electric locomotive accessory power supply crosses the control method of split-phase uninterrupted power supply, auxiliary to locomotive using main transformer independent winding
Auxiliary system is directly powered, and main circuit breaker disconnects, and contact net electric energy is isolated, and traction electric machine regenerating braking energy passes through transformer coupling
It closes and auxiliary winding is passed to by tractive winding, it is characterised in that：It was used as split-phase auxiliary system not have a power failure by locomotive microcomputer TCMS
Control signal sender, which includes the following steps：
A, start；
B, setting locomotive assisting system does not have a power failure minimum speed V1=(50X1000/ train marshalling list quality m) km/h, limit velocity
V2=(30X1000/ train marshalling list quality m) km/h；
C, locomotive overconfidence T is detected, d is entered step；
D, judge whether locomotive overconfidence T is 1, as T=1, enter step e, otherwise return to step c；
E, detection locomotive speed V；
F, judge that the do not have a power failure size of minimum speed V1 of locomotive speed V and locomotive assisting system enters step g as V1≤V, it is no
Then return to step c；
G, adjustment traction convertor TCU enters uninterrupted power supply pattern；
H, locomotive speed V is detected, step f and step i are respectively enterd；
I, the size for judging locomotive speed V and limit velocity V2 enters step j as V≤V2；Otherwise k is entered step；
J, uninterrupted power supply pattern is exited；
K, detection net pressure restores signal；
L, adjustment traction convertor TCU and AuCT APU enters normal power supply pattern；
M, terminate.
2. electric locomotive accessory power supply according to claim 1 crosses the control method of split-phase uninterrupted power supply, feature exists
In：The locomotive overconfidence T includes that automatically the anticipating signal of split-phase and semi-automatic overconfidence number, locomotive are excessive excessively
Phase signals T is for activating uninterrupted power supply pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595592.5A CN106160194B (en) | 2016-07-27 | 2016-07-27 | Electric locomotive accessory power supply crosses the control method of split-phase uninterrupted power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595592.5A CN106160194B (en) | 2016-07-27 | 2016-07-27 | Electric locomotive accessory power supply crosses the control method of split-phase uninterrupted power supply |
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| Publication Number | Publication Date |
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| CN106160194A CN106160194A (en) | 2016-11-23 |
| CN106160194B true CN106160194B (en) | 2018-07-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736494B (en) * | 2017-04-13 | 2024-03-19 | 株洲中车时代电气股份有限公司 | Electric locomotive test wire balance power supply system |
| CN107791891A (en) * | 2017-10-10 | 2018-03-13 | 中车大连机车车辆有限公司 | The powered compatible technique by phase-separating section of locomotive |
| CN108001239A (en) * | 2017-12-01 | 2018-05-08 | 中车大连机车车辆有限公司 | Train crosses split-phase opportunity car to vehicle uninterrupted power supply net die pressing type control strategy |
| CN112124152B (en) * | 2020-09-22 | 2021-12-17 | 中车株洲电力机车有限公司 | Power supply circuit and power supply control method for locomotive auxiliary system |
| CN114337472A (en) * | 2021-11-26 | 2022-04-12 | 中车永济电机有限公司 | Back electromotive force suppression control method for high-speed main breaker of permanent magnet electric locomotive |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035212A (en) * | 2010-12-10 | 2011-04-27 | 清华大学 | Electric locomotive non-power-off neutral section passing-electric energy quality comprehensive compensation device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI236792B (en) * | 2004-08-30 | 2005-07-21 | Uis Abler Electronics Co Ltd | Active equipment for harmonic suppression |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035212A (en) * | 2010-12-10 | 2011-04-27 | 清华大学 | Electric locomotive non-power-off neutral section passing-electric energy quality comprehensive compensation device and method |
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