CN210526305U - Emergency starting device for power supply system of railway dormitory van and power supply system - Google Patents
Emergency starting device for power supply system of railway dormitory van and power supply system Download PDFInfo
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- CN210526305U CN210526305U CN201921603905.2U CN201921603905U CN210526305U CN 210526305 U CN210526305 U CN 210526305U CN 201921603905 U CN201921603905 U CN 201921603905U CN 210526305 U CN210526305 U CN 210526305U
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Abstract
The utility model discloses an emergent starting drive of railway dormitory car power supply system, including consecutive first switch, AC-DC module and second switch, the input of first switch is used for linking to each other with diesel generating set, and the output of second switch is used for linking to each other with contact net power supply control unit and machine the control unit that charges respectively. The utility model also discloses a railway camper power supply system, which comprises a diesel generating set, a contact net power supply loop, a charger power supply loop, a double power supply switching unit and the emergency starting device; the output end of the diesel generating set and the output end of the power supply loop of the contact network are both connected with the input end of the double-power-supply switching unit; the input end of a first switch in the emergency starting device is connected with the diesel generator set, and the output end of a second switch is respectively connected with the contact net power supply control unit and the charger control unit. The device and the system of the utility model have the advantages of simple structure, high reliability and the like.
Description
Technical Field
The utility model mainly relates to the technical field of railway boarding car, in particular to an emergency starting device and a power supply system of a railway boarding car power supply system.
Background
With the rapid development of railway construction, the work departments of the railway administration undertake line maintenance and repair, and need to carry out construction in the field for a long time, and the environment is hard and the conditions are severe. Constructors live on the dormitory van for a long time in order to conveniently operate, wherein life power supply is indispensable. Most of the dormitory cars are vehicles transformed by waste passenger cars, and the power supply mode mainly adopts a diesel generator set and a contact net for power supply. In a contact network power supply mode, core components are a train power supply module, a charger module and a storage battery pack. Under normal conditions, the train power supply module and the charger module are powered by a DC110V control power supply provided by the storage battery pack. When the storage battery pack has a fault, the train power supply module and the charger module cannot work normally, and further the power supply system of the dormitory car cannot be started. At the moment, an emergency starting device is required to be provided from the outside to supply power for the train power supply module and the charger module, so that the power supply system of the dormitory van can work normally. At present, a common emergency starting device is an emergency storage battery pack, but the emergency storage battery pack is always in a discharging state, and needs to be frequently detached for charging and discharging, so that the maintenance is troublesome. In another mode, the storage battery pack with the same parameters is searched for help by a telephone or is replaced, but the camping vehicle stops at a remote station, so that the waiting time for rescue is long and the cost is high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides a railway dormitory car power supply system emergency starting device and power supply system that simple structure, reliability of power supply are high.
In order to solve the technical problem, the utility model provides a technical scheme does:
the emergency starting device for the power supply system of the railway dormitory van comprises a first switch, an AC-DC module and a second switch, wherein the first switch, the AC-DC module and the second switch are sequentially connected, the input end of the first switch is used for being connected with a diesel generator set in the power supply system of the dormitory van, and the output end of the second switch is used for being respectively connected with a contact net power supply control unit in a contact net power supply loop of the dormitory van and a charger control unit in a charger power supply loop.
As a further improvement of the above technical solution:
the first switch is an alternating current breaker, and the second switch is a direct current breaker.
The AC-DC module is a switch module.
The utility model also discloses a railway dormitory van power supply system, which comprises a diesel generating set, a contact net power supply loop, a charger power supply loop, a double power supply switching unit and the emergency starting device of the railway dormitory van power supply system; the output end of the diesel generating set and the output end of the power supply loop of the contact network are both connected with the input end of the dual-power switching unit, and the output end of the dual-power switching unit is used for being connected with a load of a dormitory van; the emergency starting device of the power supply system of the railway camper is characterized in that the input end of a first switch in the emergency starting device of the power supply system of the railway camper is connected with a diesel generator set, and the output end of a second switch is respectively connected with a contact network power supply control unit in a contact network power supply loop and a charger control unit in a charger power supply loop.
As a further improvement of the above technical solution:
the power supply loop of the contact network comprises a pantograph, a switch unit, a step-down transformer, a rectification unit, an inversion unit and a contact network power supply control unit, wherein the pantograph, the switch unit, the step-down transformer, the rectification unit and the inversion unit are sequentially connected, the output end of the inversion unit is connected with the input end of the dual-power-supply switching unit, the input end of the contact network power supply control unit is connected with the rectification unit, and the output end of the contact network power supply control unit is connected with the inversion unit.
The charger power supply loop comprises a charger module, a storage battery pack and a charger control unit; the charger control unit is connected with the charger module; the input end of the charger module is connected with the output end of the inversion unit, the output end of the charger module is connected with the input end of the storage battery pack, and the output end of the storage battery pack is respectively connected with the charger control unit and the contact network power supply control unit.
The power supply loop of the contact network further comprises a filtering unit, the input end of the filtering unit is connected with the output end of the inversion unit, and the output end of the filtering unit is divided into two paths to be respectively connected with the charger module and the dual-power switching unit.
The diesel generator set comprises a diesel engine, a generator and a generator control unit, wherein the diesel engine is connected with the generator, the output end of the generator is connected with the dual-power switching unit, the input end of the generator control unit is connected with the diesel engine, and the output end of the generator control unit is connected with the generator.
The rectification unit is a single-phase bridge type uncontrollable rectification circuit; the inversion unit is a three-phase bridge type full-control inversion circuit.
The pantograph is a single-arm pantograph; the switch unit is a vacuum circuit breaker.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses an emergent starting drive of railway dormitory car power supply system, diesel generating set provide charger control unit and the required power of contact net power supply control unit (the control power of DC 110V) through emergent start-up loop, solved and led to the problem that the power supply unit of dormitory car can't be started because of storage battery trouble, eliminated the trouble that brings for the user because of the maintenance of storage battery, also saved valuable time and money for the user simultaneously, reduced after-sales service cost, guaranteed the normal life power consumption of user; the emergency starting circuit is simple in structure, simple and convenient to operate and easy to realize.
The power supply system of the railway dormitory van of the utility model has the advantages of the emergency starting device as well as the emergency starting device as mentioned above; a power supply loop of a contact network is added, and the diesel engine power supply loop and the power supply loop of the contact network are combined through a dual power supply switching unit, so that the diversity of power supply of the camping car is realized, and the power supply reliability is provided; on a normal line with a contact network, the camper car can supply power through a contact network power supply loop, so that the problems of energy consumption or noise pollution caused by long-time use or frequent use of a diesel generator set are solved; on the line that does not have the contact net or the contact net is unusual, the dormitory car can supply power through diesel engine power supply loop, has guaranteed staff's normal life power consumption.
Drawings
Fig. 1 is a block structure diagram of the emergency starting apparatus according to the embodiment of the present invention.
Fig. 2 is a flowchart of an emergency starting method of the emergency starting apparatus according to an embodiment of the present invention.
Fig. 3 is a block diagram of a power supply system according to an embodiment of the present invention.
The reference numbers in the figures denote: 1. an emergency starting loop; 101. a first switch; 102. an AC-DC module; 103. a second switch; 2. a diesel generator set; 201. a diesel engine; 202. a generator; 203. a generator control unit; 3. a contact network power supply loop; 301. a pantograph; 302. a switch unit; 303. a step-down transformer; 304. a rectifying unit; 305. an inversion unit; 306. a filtering unit; 307. a contact network power supply control unit; 4. a charger power supply loop; 401. a charger module; 402. a charger control unit; 403. a battery pack; 5. a dual power switching unit.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments.
As shown in fig. 1, the emergency starting device for the power supply system of the railway camper car of the embodiment includes an emergency starting loop 1, the emergency starting loop 1 includes a first switch 101, an AC-DC module 102 and a second switch 103, the first switch 101, the AC-DC module 102 and the second switch 103 are sequentially connected, an input end of the first switch 101 is used for being connected with a diesel generator set 2 in the power supply system of the camper car, and an output end of the second switch 103 is used for being connected with a contact network power supply control unit 307 in a contact network power supply loop 3 of the camper car and a charger control unit 402 in a charger power supply loop 4 respectively.
In this embodiment, the first switch 101 is an ac circuit breaker, and the second switch 103 is a dc circuit breaker; the AC-DC module 102 is a switching module.
When the storage battery pack 403 fails, the storage battery pack 403 is removed, and then the positive and negative electrodes of the output end of the charger module 401 are respectively connected with the positive and negative electrodes of the charger control unit 402 and the positive and negative electrodes of the contact network power supply control unit 307. Starting the diesel generator set 2 to obtain a three-phase four-wire system AC380V/50Hz power supply; the input end of the first switch 101 is connected with two phases of 'A' and 'N' of a three-phase four-wire system AC380V/50Hz power supply, is used for obtaining a single-phase AC220V/50Hz power supply, and has overcurrent and short-circuit protection functions. An input of the AC-DC module 102 is connected to an output of the first switch 101 for converting a single phase AC220V/50Hz supply to a DC110V supply. The input end of the second switch 103 is connected with the output end of the DC110V power supply, and the functions of overcurrent and short-circuit protection are achieved. The output end of the second switch 103 is connected to the positive and negative electrodes of the charger control unit 402 and the positive and negative electrodes of the contact network power supply control unit 307, respectively, to provide a DC110V control power supply for the battery. When the indicator lamps of the charger control unit 402 and the catenary power supply control unit 307 are normal, power transmission can be performed according to the starting operation of the power supply equipment of the camper. After the power supply equipment of the camper car normally works, the charger module 401 outputs a DC110V power supply, and can replace the AC-DC module 102 to continuously provide control power supplies for the charger control unit 402 and the contact network power supply control unit 307. At this time, the second switch 103, the first switch 101 and the diesel generator set 2 are sequentially closed, and the emergency start is completed.
The utility model discloses an emergent starting drive of railway dormitory car power supply system, diesel generating set 2 provides charger control unit 402 and the required power of contact net power supply control unit 307 (the control power of DC 110V) through emergent start-up return circuit 1, solved and led to the problem that dormitory car power supply unit can't start because of storage battery 403 trouble, eliminated the trouble that brings for the user of service because of storage battery 403's maintenance, also practiced thrift valuable time and money for the user of service simultaneously, reduced after-sale service cost, guaranteed the normal life power consumption of user of service; the emergency starting circuit 1 is simple in structure, simple and convenient to operate and easy to realize.
As shown in fig. 3, the utility model also discloses a railway dormitory van power supply system, including diesel generating set 2, contact net power supply loop 3, charger power supply loop 4, dual power supply switching unit 5 and the emergent starting drive of railway dormitory van power supply system as above; the output end of the diesel generating set 2 and the output end of the contact net power supply loop 3 are both connected with the input end of a double-power switching unit 5, and the output end of the double-power switching unit 5 is used for being connected with a dormitory car load; the input end of a first switch 101 in the emergency starting device of the power supply system of the railway camper is connected with the diesel generator set 2, and the output end of a second switch 103 is respectively connected with a contact network power supply control unit 307 in a contact network power supply loop 3 and a charger control unit 402 in a charger power supply loop 4.
In this embodiment, the catenary power supply loop 3 includes a pantograph 301, a switch unit 302, a step-down transformer 303, a rectification unit 304, an inversion unit 305 and a catenary power supply control unit 307, the pantograph 301, the switch unit 302, the step-down transformer 303, the rectification unit 304 and the inversion unit 305 are sequentially connected, an output end of the inversion unit 305 is connected with an input end of the dual power supply switching unit 5, an input end of the catenary power supply control unit 307 is connected with the rectification unit 304, and an output end of the catenary power supply control unit 307 is connected with the inversion unit 305.
In this embodiment, the charger power supply loop 4 includes a charger module 401, a storage battery pack 403, and a charger control unit 402; the charger control unit 402 is connected with the charger module 401; the input end of the charger module 401 is connected to the output end of the inverter unit 305, the output end of the charger module 401 is connected to the input end of the storage battery pack 403, and the output end of the storage battery pack 403 is connected to the charger control unit 402 and the contact network power supply control unit 307, respectively. The charger module 401 is an AC-DC-AC-DC conversion circuit; battery pack 403 is a nickel metal hydride battery.
In this embodiment, the power supply loop 3 of the contact network further includes a filtering unit 306, an input end of the filtering unit 306 is connected to an output end of the inverting unit 305, and an output end of the filtering unit 306 is divided into two paths and is respectively connected to the charger module 401 and the dual power supply switching unit 5. The filtering unit 306 is a combination circuit of a filter transformer, a filter capacitor and an EMI filter.
In this embodiment, the diesel generator set 2 includes a diesel engine 201, a generator 202 and a generator control unit 203, the diesel engine 201 is connected to the generator 202, an output end of the generator 202 is connected to the dual power switching unit 5, an input end of the generator control unit 203 is connected to the diesel engine 201, and an output end of the generator control unit 203 is connected to the generator 202. Wherein the diesel engine 201 is a high-speed closed water circulation cooling diesel engine; the generator 202 is a three-phase four-wire alternator.
In this embodiment, the pantograph 301 is a single-arm pantograph; the switching unit 302 is a vacuum circuit breaker; the rectifying unit 304 is a single-phase bridge type uncontrollable rectifying circuit; the inverter unit 305 is a three-phase bridge type full-control inverter circuit; the dual power switching unit 511 includes two mechanically or electrically interlocked switching components, which may be a combined circuit of a contactor and a circuit breaker.
The power supply system of the railway dormitory van of the utility model has the advantages of the emergency starting device as well as the emergency starting device as mentioned above; a contact network power supply loop 3 is added, and the diesel generator set 2 and the contact network power supply loop 3 are combined through a dual power supply switching unit 5, so that the diversity of power supply of the dormitory van is realized, and the power supply reliability is provided; on a normal line with a contact network, the camper car can supply power through the contact network power supply loop 3, so that the problems of energy consumption or noise pollution caused by long-time use or frequent use of the diesel generator set 2 are solved; on the line that does not have the contact net or the contact net is unusual, the camper can pass through diesel generating set 2 power supply, has guaranteed staff's normal life power consumption.
The power supply system of the present invention will be further described with reference to a specific and complete embodiment:
specifically, on a normal line with a contact network, the pantograph 301 is connected with the contact network and used for connecting a single-phase alternating-current 25kV/50Hz power supply. The switching unit 302 is connected with the pantograph 301 through a high-voltage cable and is used for switching on and off a single-phase alternating-current 25kV/50Hz power supply so as to protect a power supply system. The input end of the step-down transformer 303 is connected with the switching unit 302, and the output end of the step-down transformer 303 is connected with the input end of the rectifying unit 304, and is used for converting a single-phase alternating current 25kV/50Hz power supply into a single-phase alternating current 860V/50Hz power supply. The output end of the rectifying unit 304 is connected with the input end of the inverting unit 305, and is used for converting the single-phase alternating current 860V/50Hz into an intermediate direct-current power supply. The output end of the inverting unit 305 is connected to the input end of the filtering unit 306, and is used for converting the intermediate direct-current power supply into a three-phase four-wire system AC380V power supply. The filtering unit 306 has two output paths, one of which is connected with the dual power supply switching unit 5 and supplies power to AC380V or AC220V electric equipment on the dormitory van; the other path is connected with the input end of the charger module 401 to provide input power of AC380V for the charger module 401. The output end of the charger module 401 is connected to the storage battery pack 403, and provides a charging power supply of DC110V for the storage battery pack 403. The output end of the storage battery pack 403 is connected to the inversion control unit and the charger control unit 402, respectively, to provide a DC110V control power supply for the contact network power supply control unit 307 and the charger control unit 402. The input end of the catenary power supply control unit 307 is connected with the rectifying unit 304 and is used for acquiring signals such as voltage and current of the rectifying unit 304; the output end of the catenary power supply control unit 307 is connected to the inverter unit 305, and is used for controlling on/off and protection of a switch device inside the inverter unit 305. The charger control unit 402 is connected to the charger module 401, and is configured to control on/off and protection of a switch device inside the charger module 401.
On a line without a contact net or with an abnormal contact net, the diesel engine 201 is connected with the generator 202, the rotation of the diesel engine 201 is utilized to drive a rotor of the generator 202, the generator 202 outputs induced electromotive force, current is generated through a closed load loop, and a three-phase four-wire system AC380V power supply is obtained. The output end of the generator 202 is connected with the dual power supply switching unit 5 to supply power for AC380V or AC220V electric equipment on the dormitory van.
In addition, combine the utility model discloses a power supply system is right the utility model provides an emergency starting device's emergent start-up method does further explain, as shown in fig. 2, specifically includes following step:
s1, turning off all switches of the equipment, and disconnecting the connection with the fault storage battery pack 403;
s2, connecting the positive and negative poles of the output end of the charger module 401 with the positive and negative poles of the charger control unit 402 and the positive and negative poles of the contact network power supply control unit 307 respectively;
s3, connecting the phase A and the phase N at the output end of the diesel generator set 2 with the input of the first switch 101; the AC-DC module 102 is connected to the first switch 101 and the second switch 103, respectively; the positive and negative poles of the second switch 103 are respectively connected with the positive and negative poles of the charger control unit 402 and the contact network power supply control unit 307;
s4, starting the diesel generator set 2 to obtain a three-phase four-wire system AC380V power supply;
s5, turning the first switch 101 to 'on', and measuring the output voltage value of the AC-DC module 102 by using a multimeter; if the voltage value is low, the screwdriver can be used for rotating the output voltage adjusting knob to correct the voltage value;
s6, turning on the second switch 103, and then lightening the working indicator lamps of the charger control unit 402 and the contact network power supply control unit 307; at the moment, sequentially transmitting power according to a power supply equipment starting method;
s7, after the equipment to be powered normally runs, sequentially turning off the second switch 103, turning off the first switch 101 and turning off the diesel generator set 2;
and S8, removing the connection lines among the diesel generator set 2, the first switch 101, the AC-DC module 102 and the second switch 103.
The AC-DC module 102 provides a DC110V control power supply, so that the problem that power supply equipment of a dormitory car cannot be started due to the failure of the storage battery pack 403 is solved, and the normal life power utilization of users is ensured.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The emergency starting device for the power supply system of the railway camper car is characterized by comprising a first switch (101), an AC-DC module (102) and a second switch (103), wherein the first switch (101), the AC-DC module (102) and the second switch (103) are sequentially connected, the input end of the first switch (101) is used for being connected with a diesel generator set (2) in the power supply system of the camper car, and the output end of the second switch (103) is used for being respectively connected with a contact net power supply control unit (307) in a contact net power supply loop (3) of the camper car and a charger control unit (402) in a charger power supply loop (4).
2. The emergency starting device for the power supply system of a railway camper according to claim 1, wherein said first switch (101) is an ac circuit breaker and said second switch (103) is a dc circuit breaker.
3. The emergency starting device of a railway camper car power supply system according to claim 1, wherein said AC-DC module (102) is a switch module.
4. A power supply system of a railway dormitory van, which is characterized by comprising a diesel generator set (2), a contact network power supply loop (3), a charger power supply loop (4), a double-power switching unit (5) and the emergency starting device of the power supply system of the railway dormitory van in any one of claims 1 to 3; the output end of the diesel generator set (2) and the output end of the contact net power supply loop (3) are both connected with the input end of the dual-power switching unit (5), and the output end of the dual-power switching unit (5) is used for being connected with a dormitory van load; the emergency starting device of the power supply system of the railway camper is characterized in that the input end of a first switch (101) in the emergency starting device of the power supply system of the railway camper is connected with a diesel generator set (2), and the output end of a second switch (103) is respectively connected with a contact network power supply control unit (307) in a contact network power supply loop (3) and a charger control unit (402) in a charger power supply loop (4).
5. The power supply system for the railway camper car according to claim 4, wherein the catenary power supply circuit (3) comprises a pantograph (301), a switch unit (302), a step-down transformer (303), a rectification unit (304), an inversion unit (305) and a catenary power supply control unit (307), the pantograph (301), the switch unit (302), the step-down transformer (303), the rectification unit (304) and the inversion unit (305) are sequentially connected, an output end of the inversion unit (305) is connected with an input end of the dual power supply switching unit (5), an input end of the catenary power supply control unit (307) is connected with the rectification unit (304), and an output end of the catenary power supply control unit (307) is connected with the inversion unit (305).
6. The railway camper car power supply system according to claim 5, wherein the charger power supply loop (4) comprises a charger module (401), a battery pack (403), and a charger control unit (402); the charger control unit (402) is connected with the charger module (401); the input end of the charger module (401) is connected with the output end of the inversion unit (305), the output end of the charger module (401) is connected with the input end of the storage battery pack (403), and the output end of the storage battery pack (403) is respectively connected with the charger control unit (402) and the contact network power supply control unit (307).
7. The railway camper power supply system according to claim 6, wherein the catenary power supply loop (3) further comprises a filter unit (306), an input end of the filter unit (306) is connected with an output end of the inverter unit (305), and an output end of the filter unit (306) is connected with the charger module (401) and the dual power supply switching unit (5) in two paths respectively.
8. A railway camper car power supply system according to claim 5 or 6 or 7, wherein the diesel generator set (2) comprises a diesel engine (201), a generator (202) and a generator control unit (203), the diesel engine (201) is connected with the generator (202), the output end of the generator (202) is connected with the dual power supply switching unit (5), the input end of the generator control unit (203) is connected with the diesel engine (201), and the output end of the generator control unit (203) is connected with the generator (202).
9. The railway camper car power supply system of claim 5, or 6 or 7, wherein said rectifying unit (304) is a single-phase bridge uncontrollable rectifying circuit; the inverter unit (305) is a three-phase bridge type full-control inverter circuit.
10. The railway camper car power supply system of claim 5 or 6 or 7, wherein said pantograph (301) is a single-armed pantograph; the switching unit (302) is a vacuum circuit breaker.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921603905.2U CN210526305U (en) | 2019-09-24 | 2019-09-24 | Emergency starting device for power supply system of railway dormitory van and power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921603905.2U CN210526305U (en) | 2019-09-24 | 2019-09-24 | Emergency starting device for power supply system of railway dormitory van and power supply system |
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| CN210526305U true CN210526305U (en) | 2020-05-15 |
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| CN201921603905.2U Active CN210526305U (en) | 2019-09-24 | 2019-09-24 | Emergency starting device for power supply system of railway dormitory van and power supply system |
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Effective date of registration: 20200803 Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZHOU NATIONAL ENGINEERING RESEARCH CENTER OF CONVERTERS Co.,Ltd. |