CN204998355U - Supplementary power supply extend system of railcar - Google Patents
Supplementary power supply extend system of railcar Download PDFInfo
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- CN204998355U CN204998355U CN201520655581.2U CN201520655581U CN204998355U CN 204998355 U CN204998355 U CN 204998355U CN 201520655581 U CN201520655581 U CN 201520655581U CN 204998355 U CN204998355 U CN 204998355U
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Abstract
The utility model provides a supplementary power supply extend system of railcar, include: main circuit, control circuit, first circuit breaker, second circuit breaker and first contactor are in closed position during the circular telegram of first contactor, be in non - closed position during the outage of first contactor, the main circuit includes first circuit and second circuit, and first circuit and second circuit are connected to first contactor, first circuit is connected with control circuit through first circuit breaker, and the second circuit passes through the second circuit breaker and is connected with control circuit, the on position of first circuit triggers the state change of first circuit breaker, and the on position of second circuit triggers the state change of second circuit breaker, and control circuit triggers the state change of first contactor according to the state of the state of first circuit breaker and second circuit breaker. The utility model discloses a power supply extend system supply power through the mechanical interlocking reaction pair subway of each component, has avoided because control signal mistake and the power supply mode that causes is chaotic has improved power supply system's reliability.
Description
Technical field
The utility model relates to electric field, particularly relates to a kind of railcar auxiliary power supply expanding system.
Background technology
Subway is responsible for increasing trip demand as urban transportation tool, wherein, the auxiliary power system of railcar, as the power supply of vehicle air conditioning, illumination, air compressor, door device, passenger's integrated information system, each system, control circuit and cab signal and communication facilities etc., is the basic guarantee that railcar runs.
Each railcar comprises two unit, and each unit is made up of three joint compartments, and existing auxiliary power supply system respectively configures a subordinate inverter at the two ends of subway, and between two inverters, installs an expansion contactless switch and form.This expansion contactless switch, by two subordinate inverter disjunctions, is powered with the unit making two subordinate inverter be respectively corresponding.When two inverters are all working properly, inverter inspection software train notified controls and diagnostic system (TrainControlandManagementSystem, be called for short TCMS) control the action of expansion contactless switch, make it be in and disconnect dress state, now, each subordinate inverter powers to the AC load of respective unit.When one of them fault of converter, inverter software notification TCMS controls the action of expansion contactless switch, and make it close, now, be that two unit are powered by the inverter of non-fault simultaneously.
But mistake appears in the possibility of result that above-mentioned inverter inspection software detects, and causes providing TCMS false command, now expand contactless switch and there will be misoperation, railcar there will be power supply trouble.
Utility model content
The utility model provides a kind of railcar auxiliary power supply expanding system, if send to TCMS false command to solve inverter inspection software in prior art, expansion contactless switch there will be misoperation, thus the problem causing railcar to be powered breaking down.
The utility model provides a kind of railcar auxiliary power supply expanding system, comprise power circuit, control circuit, the first circuit breaker, the second circuit breaker and the first contactless switch, be in closed position during described first contactless switch energising, during described first contactless switch power-off, be in non-closed position; Wherein, described power circuit comprises the first circuit and second circuit, and described first contactless switch connects described first circuit and described second circuit;
Described first circuit is connected with described control circuit by described first circuit breaker, and described second circuit is connected with described control circuit by described second circuit breaker; The "on" position of described first circuit triggers the state variation of described first circuit breaker, the "on" position of described second circuit triggers the state variation of described second circuit breaker, and described control circuit triggers the state variation of described first contactless switch according to the state of the state of described first circuit breaker and described second circuit breaker.
Particularly, the "on" position of described first circuit triggers the state variation of described first circuit breaker, and the state variation of described second circuit breaker of "on" position triggering of described second circuit comprises:
When described first power on circuitry, described first circuit breaker is in the first state; When described first circuit is not energized, described first circuit breaker is in the second state; When described second circuit energising, described second circuit breaker is in the first state; When described second circuit is not energized, described first circuit breaker is in the second state.
Described control circuit triggers the state variation of described first contactless switch according to the state of the state of described first circuit breaker and described second circuit breaker, specifically comprises:
When described first circuit breaker and described second circuit breaker are all in the first state, described control circuit controls described first contactless switch no power, and described first contactless switch is in non-closed position, and the first circuit and second circuit cut off; When in described first circuit breaker and described second circuit breaker, one is in the first state, when another is in the second state, described control circuit controls described first contactless switch energising, and described first contactless switch is in closed position, described first circuit and second circuit conducting.
Particularly, described first circuit breaker comprises the first coil, and described second circuit breaker comprises the second coil, and described first contactless switch comprises the first contactless switch main contact;
Described first circuit comprises: the first subordinate inverter, the input end of described first subordinate inverter is connected with high voltage bus, the mouth and first of described first subordinate inverter breaks to enclose and is connected, and the mouth of described first subordinate inverter is connected with one end of described first contactless switch main contact; Described second circuit comprises: the second subordinate inverter, the input end of described second subordinate inverter is connected with high voltage bus, the mouth of described second subordinate inverter is connected with described second coil, and the mouth of described second subordinate inverter is connected with the other end of described first contactless switch main contact.
Particularly, described control circuit is by DC power control and comprise the 3rd circuit breaker, described 3rd circuit breaker comprises tertiary winding and the 3rd circuit breaker main contact, described first circuit breaker also comprises the first secondary contact, described second circuit breaker also comprises the second secondary contact, and described first contactless switch also comprises the first contactless coil;
One end of described 3rd circuit breaker main contact is connected with the positive pole of described direct supply, the other end of described 3rd circuit breaker main contact is connected with described first secondary contact, one end of described first contactless coil is connected with described second secondary contact, and the other end of described first contactless coil is connected with described DC power cathode; One end of described tertiary winding is connected with described DC power cathode, and the other end and the railcar of described tertiary winding control to be connected with diagnostic system;
Wherein, described first secondary contact comprise the first open contact and the first normally closed contact, and described second secondary contact comprise the second open contact and the second normally closed contact; Described first open contact is connected with described second normally closed contact, and described first normally closed contact is connected with described second open contact.
In a specific embodiment of the present utility model, the first auxiliary open contact of one first contactless switch is also comprised in described control circuit, one end of first auxiliary open contact of described first contactless switch is connected with described 3rd circuit breaker main contact, and the other end is connected with described first contactless coil.
In a specific embodiment of the present utility model, described control circuit also can comprise the second auxiliary open contact of one first contactless switch, and described railcar controls to be connected with diagnostic system and assists open contact to be connected with described first contactless coil by second of described first contactless switch.
Further, described railcar controls to comprise signal output unit and signal input unit with diagnostic system, wherein, one end of described tertiary winding is connected with described signal output unit, and the second auxiliary open contact of described first contactless switch is connected with described signal input unit.
Further, the first circuit breaker of the present utility model is the first relay, and described second circuit breaker is the second relay, and described 3rd circuit breaker is the 3rd relay.
The railcar auxiliary power supply expanding system that the utility model provides, the first circuit is made to trigger to carry out state change to the first circuit breaker by increasing by the first circuit breaker at the first circuit, increasing by the second circuit breaker at second circuit makes second circuit trigger to carry out state change to the second circuit breaker, control circuit triggers the opening and closing of the first contactless switch according to the state of the first circuit breaker and the second circuit breaker, thus determines the expansion action of electric power system.That is, in the utility model, the first contactless switch is closed, namely whether conducting is connected for the first circuit and second circuit, undertaken controlling by the mechanical chain reaction of each electric elements, avoid the generation of the misoperation that the expansion that causes due to spurious signal transmission is powered, therefore the expansion power supply mode fiduciary level that occurs of railcar auxiliary power supply expanding system of the present utility model is high.
Accompanying drawing explanation
The circuit connection diagram of a kind of railcar auxiliary power supply expanding system that Fig. 1 provides for the utility model embodiment;
The circuit connection diagram of the another kind of railcar auxiliary power supply expanding system that Fig. 2 provides for the utility model embodiment;
The circuit connection diagram of the another kind of railcar auxiliary power supply expanding system that Fig. 3 provides for the utility model embodiment;
The circuit connection diagram of the another kind of railcar auxiliary power supply expanding system that Fig. 4 provides for the utility model embodiment.
Description of reference numerals:
K1: the first coil;
K2: the second coil;
K3: tertiary winding;
KM: the first contactless coil;
K11: the first open contact;
K12: the first normally closed contact;
K21: the second open contact;
K22: the second normally closed contact;
KMK: the first contactless switch main contact;
K3K: the three circuit breaker main contact;
KM1: the first contactless switch first often drives secondary contact;
KM2: the first contactless switch second often drives secondary contact;
SIV1: the first subordinate inverter;
SIV2: the second subordinate inverter.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The circuit connection diagram of a kind of railcar auxiliary power supply expanding system that Fig. 1 provides for the utility model embodiment.As shown in Figure 1, railcar auxiliary power supply expanding system of the present utility model, comprise power circuit, control circuit, the first circuit breaker, the second circuit breaker and the first contactless switch, be in closed position during the first contactless switch energising, during the first contactless switch power-off, be in non-closed position; Wherein, described power circuit comprises the first circuit and second circuit, and described first contactless switch connects described first circuit and described second circuit;
Described first circuit is connected with described control circuit by described first circuit breaker, and described second circuit is connected with described control circuit by described second circuit breaker; The "on" position of described first circuit triggers the state variation of described first circuit breaker, the "on" position of described second circuit triggers the state variation of described second circuit breaker, and described control circuit triggers the state variation of described first contactless switch according to the state of the state of described first circuit breaker and described second circuit breaker.
In railcar auxiliary power supply expanding system of the present utility model, whether closing of the first contactless switch carries out machinery based on control circuit according to the element state of the first circuit breaker and the second circuit breaker to trigger, when the element state of the first circuit breaker and second circuit device can make control circuit be energized, control circuit triggers the first contactless switch and closes, when the element state of the first circuit breaker and second circuit device can not make control circuit be energized, control circuit cannot trigger the first contactless switch, first contactless switch does not close, no matter the detection signal of subordinate inverter software that therefore TCMS receives is correct or mistake, whether the closed of first contactless switch only carries out closed or non-closed with the energising of control circuit, therefore the situation of the misoperation generation caused owing to receiving spurious signal is avoided.And the element state of the first circuit breaker and the second circuit breaker is "on" position according to the first circuit and second circuit and by mechanical triggering, therefore the element state of the first circuit breaker and the second circuit breaker can know the errorless "on" position reflecting the first circuit and second circuit, so further ensure needs first contactless switch when closing, control circuit is energized and then is energized to the first contactless switch, now the first contactless switch is in closed position, that is, the first circuit and second circuit conducting; When not needing the first contactless switch to close, control circuit no power cannot to the first contactless switch energising, and now the first contactless switch is in non-closed position, that is, the first circuit and each self-operating of second circuit.Therefore, railcar auxiliary power supply expanding system of the present utility model carries out expansion power supply by the chain reaction of each electric elements to railcar, reliability is high, avoids the powerup issue bringing railcar to occur due to subordinate inverter software detection signal error.
Further, the "on" position of the first circuit triggers the state variation of the first circuit breaker, and the "on" position of second circuit triggers the state variation of the second circuit breaker, specifically comprises:
When the first power on circuitry, the first circuit breaker is in the first state; When the first circuit is not energized, the first circuit breaker is in the second state; When second circuit is energized, the second circuit breaker is in the first state; When second circuit is not energized, described first circuit breaker is in the second state.
Further, described control circuit triggers the state variation of described first contactless switch according to the state of the state of described first circuit breaker and described second circuit breaker, specifically comprises:
When described first circuit breaker and described second circuit breaker are all in the first state, described control circuit controls described first contactless switch no power, and described first contactless switch is in non-closed position, and the first circuit and second circuit cut off; When in described first circuit breaker and described second circuit breaker, one is in the first state, when another is in the second state, described control circuit controls described first contactless switch energising, and described first contactless switch is in closed position, described first circuit and second circuit conducting.
That is, when using railcar auxiliary power supply expanding system of the present utility model to be used for carrying out expansion power supply, when the first circuit and second circuit all normally run, when being namely energized separately, the first breaker electrifying is in the first state, second breaker electrifying is in the first state, now control circuit no power, and then the first contactless switch no power, now the first contactless switch is in non-closed position, because the first contactless switch disconnects, the first circuit and each self-operating of second circuit, when the first circuit abnormality runs, i.e. the first circuit no power, and second circuit normally runs, namely when only having second circuit to be energized, first breaker electrifying is in the second state, second breaker electrifying is in the first state, now control circuit energising, and then first contactless switch energising, now the first contactless switch is in closed position, because the first contactless switch closes, first circuit and second circuit conducting, second circuit is powered to the first circuit, same, when the first power on circuitry, during second circuit no power, first contactless switch closes, first circuit and second circuit conducting, first circuit is powered to second circuit.
The circuit connection diagram of the another kind of railcar auxiliary power supply expanding system that Fig. 2 provides for the utility model embodiment.Concrete, please refer to Fig. 2, described first circuit breaker comprises the first coil K1, and described second circuit breaker comprises the second coil K2, and described first contactless switch comprises the first contactless switch main contact KMK;
Described first circuit comprises: the first subordinate inverter SIV1, the input end of described first subordinate inverter SIV1 is connected with high voltage bus, the mouth of described first subordinate inverter SIV1 is connected with the first coil K1, and the mouth of described first subordinate inverter SIV1 is connected with one end of described first contactless switch main contact KMK;
Described second circuit comprises: the second subordinate inverter SIV2, the input end of described second subordinate inverter SIV2 is connected with high voltage bus, the mouth of described second subordinate inverter SIV2 is connected with described second coil K2, and the mouth of described second subordinate inverter SIV2 is connected with the other end of described first contactless switch main contact KMK.
High-tension current inputs the first subordinate inverter SIV1 by high voltage bus, through the inversion of the first subordinate inverter SIV1, become in three-phase and press alternating current to export to middle pressure bussed supply, first coil K1 is connected with the mouth of the first subordinate inverter SIV1 by middle pressure bus, because three plase alternating current respectively exists difference mutually, therefore, first coil K1 only connects to form loop with the two-phase in three plase alternating current and can normally work, thus, when the first subordinate inverter SIV1 has alternating current normally to export, first power on circuitry, first coil K1 is energized, when the first subordinate inverter SIV1 exports without alternating current, first circuit no power, first coil K1 no power.
High-tension current inputs the second subordinate inverter SIV2 by high voltage bus, through the inversion of the second subordinate inverter SIV2, become in three-phase and press alternating current to export to middle pressure bussed supply, second coil K2 is connected with the mouth of the second subordinate inverter SIV2 by middle pressure bus, because three plase alternating current respectively exists difference mutually, therefore, the coil of the second circuit breaker only connects to form loop with the two-phase in three plase alternating current and can normally work, thus, when the second subordinate inverter SIV2 has alternating current normally to export, second circuit is energized, second coil K2 is energized, when the second subordinate inverter SIV2 exports without alternating current, second circuit no power, second coil K2 no power.
First contactless switch main contact KMK is connected with the mouth of the second subordinate inverter SIV2 with the first subordinate inverter SIV1 respectively by middle pressure bus, when the first subordinate inverter SIV1 and the second subordinate inverter SIV2 is energized, first contactless switch main contact KMK can not close, now the first subordinate inverter SIV1 powers to the first circuit, and the second subordinate inverter SIV2 powers to second circuit; When one of them subordinate inverter no power, the first contactless switch main contact KMK closes, and the first circuit and second circuit conducting, powered to the first circuit and second circuit by the subordinate inverter normally run simultaneously, meets the power demands of railcar.
In above-mentioned connection, whether normally can be worked by the first circuit breaker and the second circuit breaker checking first subordinate inverter SIV1 and the second subordinate inverter SIV2 that whether is energized, avoid the unreliability of subordinate inverter software detection.
Particularly, as shown in Figure 2, described control circuit is by DC power control and comprise the 3rd circuit breaker, described 3rd circuit breaker comprises tertiary winding K3 and the 3rd circuit breaker main contact K3K, described first circuit breaker also comprises the first secondary contact, described second circuit breaker also comprises the second secondary contact, and described first contactless switch also comprises the first contactless coil KM.
One end of described 3rd circuit breaker main contact K3K is connected with the positive pole of described direct supply, the other end of described 3rd circuit breaker main contact K3K is connected with described first secondary contact, one end of described first contactless coil KM is connected with described second secondary contact, and the other end of described first contactless coil KM is connected with described DC power cathode; One end of described tertiary winding K3 is connected with described DC power cathode, and the other end and the railcar of described tertiary winding K3 control to be connected with diagnostic system;
Wherein, described first secondary contact comprise the first open contact and the first normally closed contact, and described second secondary contact comprise the second open contact and the second normally closed contact; Described first open contact K11 is connected with described second normally closed contact K22, and described first normally closed contact K12 is connected with described second open contact K21.
As shown in Figure 2, in this control circuit, only have when the 3rd circuit breaker main contact K3K and the first open contact K11 and the second normally closed contact K22 is simultaneously closed, or when the 3rd circuit breaker main contact K3K and the first normally closed contact K11 and the second open contact K21 is simultaneously closed, control circuit just meeting conducting, have direct current (DC) to pass through, when electric current is through the first contactless coil KM, the first contactless switch main contact KMK just can close.If in above-mentioned two situations, when having arbitrary element not closed, control circuit does not have direct current (DC) process, and the first contactless coil KM also can not be energized, thus the first contactless switch main contact KMK can not close.
For the circuit connecting mode of Fig. 2, the expansion power supply mode of railcar auxiliary power supply expanding system of the present utility model is as follows:
In first circuit and second circuit, when the first coil K1 and the second coil K2 is energized simultaneously, namely two subordinate inverter normally work, high-tension current can both be changed into middle pressure three plase alternating current and normally export by the first subordinate inverter SIV1 and the second subordinate inverter SIV2, and two subordinate inverter can be powered to respective circuit.Now, by wireless signal, the first circuit breaker and the second circuit breaker can notify that TCMS does not need the first contactless switch main contact KMK to close.Even if the now signal error that sends of subordinate inverter software, but be all energized due to the first coil K1 and the second coil K2, now the first circuit breaker presents the first state, and namely in control circuit, the first open contact K11 closes, and the first normally closed contact K12 opens; Second circuit breaker presents the first state, and namely in control circuit, the second normally closed contact K22 opens, and the second open contact K21 closes.Therefore, in this situation, the non-conducting of control circuit, does not have direct current (DC) process, and the first contactless coil KM can not be energized, and thus the first contactless switch main contact KMK can not close, and now, two subordinate inverter are powered to respective circuit.
In first circuit and second circuit, when the first coil K1 is energized, when second coil K2 is not energized, namely the first subordinate inverter SIV1 normally works, high-tension current can be changed into middle pressure three plase alternating current and normally export, second subordinate inverter breaks down, and high-tension current can not be changed into middle pressure three plase alternating current and normally export.Now, by wireless signal, first circuit breaker and the second circuit breaker can notify that TCMS needs the first contactless switch main contact KMK to close, thus conducting first circuit and second circuit, make the first subordinate inverter SIV1 be that the first circuit and second circuit are powered simultaneously.Herein, it is to be noted, for this mode of expansion power supply, when only having a subordinate inverter normally to work, before the subordinate inverter of normal work is powered to two circuit at the same time, namely before the first contactless switch is closed, TCMS needs the air-conditioning compressor off-load half connected in that circuit first normal subordinate inverter being responsible for powering, closed first contactless switch again, then sequence starting fault subordinate inverter be responsible for connecting in that circuit of powering half air-conditioning compressor.Therefore, after receiving close command, TCMS first can make the air conditioner load off-load half in second circuit, after off-load completes, TCMS can continue output first extended instruction, this first extended instruction is high level, because in control circuit, tertiary winding K3 one end is connected with TCMS, one end is connected with the negative pole of direct supply, after TCMS exports high level, the coil of the 3rd circuit breaker will obtain electric, thus the 3rd circuit breaker main contact K3K is closed, and the "on" position of the first coil K1 and the second coil K2 makes the first circuit breaker present the first state, namely in control circuit, the first open contact K11 closes, first normally closed contact K12 opens, make the second circuit breaker present the second state, namely in control circuit, the second normally closed contact K22 closes, and the second open contact K21 opens.Therefore, in this situation, control circuit conducting, has direct current (DC) process, and the first contactless coil KM obtains electric, and thus the first contactless switch main contact KMK closes, and now, the first subordinate inverter SIV1 powers to two circuit simultaneously.
Same, when the first subordinate inverter SIV1 fault, second subordinate inverter SIV2 normally worked alternating current export time, it is electric that the high level output of extended instruction makes tertiary winding K3 obtain, thus the 3rd circuit breaker main contact K3K closes, and the "on" position of the first coil K1 and the second coil K2 makes the first circuit breaker present the second state, namely in control circuit, the first open contact K11 opens, and the first normally closed contact K12 closes; Make the second circuit breaker present the first state, namely in control circuit, the second normally closed contact K22 opens, and the second open contact K21 closes.Therefore, in this situation, control circuit conducting, has direct current (DC) process, and the first contactless coil KM obtains electric, and thus the first contactless switch main contact KMK closes, and now, the second subordinate inverter SIV2 powers to two circuit simultaneously.
When a subordinate inverter is powered to two circuit simultaneously (such as, first subordinate inverter SIV1 is normal, second subordinate inverter SIV2 fault), if when the second subordinate inverter SIV2 of fault recovers normal, now, first coil K1 and the second coil K2 again simultaneously electric, simultaneously in control circuit, first open contact K11 is still closure state, first normally closed contact K12 is still open mode, and the second normally closed contact K22 becomes open mode from closure state, second open contact K21 becomes closure state from open mode, in this situation, control circuit disconnects and passing through without direct current (DC), first contactless coil KM no power, therefore the first contactless switch main contact KMK opens, air-conditioning recovers normal load, first subordinate inverter SIV1 powers to the first circuit, second subordinate inverter SIV2 powers to second circuit.
The utility model, by the chain triggering in electric elements, enhances the reliability of extension power-supply system, avoids because subordinate inverter software sends Wrong control signal and electric power system is gone wrong.
Further, as shown in Figure 3, the circuit connection diagram of the another kind of railcar auxiliary power supply expanding system that Fig. 3 provides for the utility model embodiment, also comprise one first contactless switch in described control circuit first often opens secondary contact KM1, one end that secondary contact KM1 often opened by first of described first contactless switch is connected with one end of described 3rd circuit breaker main contact K3K, and the other end that secondary contact KM1 often opened by first of described first contactless switch is connected with described first contactless coil KM.
In the process of subway circulation; to break down again after often there will be the of short duration recovery of subordinate inverter of fault or alternately fault appears in two subordinate inverter for a long time; once the subordinate inverter of fault is recovered; first contactless switch main contact KMK will open, and air-conditioning off-load also can recover normal, but when breaking down again after of short duration recovery; air-conditioning is off-load again; first contactless switch main contact KMK closes again, and so forth after several, can cause the damage of the first contactless switch and a/c system.After often opening secondary contact KM1 when be provided with the first contactless switch in control circuit first, often open secondary contact KM1 due to first of the first contactless switch in control circuit and be still in closure state, so still have direct current (DC) to flow through in this road, the first contactless coil KM is energized, so the first contactless switch main contact KMK between the first circuit and second circuit is still for being energized closure state, do not disconnect immediately.That is, even if the second subordinate inverter SIV2 of fault recovers normal in subway circulation process, but because the existence of secondary contact KM1 often left by first of the first contactless switch in control circuit, first contactless switch main contact KMK also can not open immediately, when after the duration that the second subordinate inverter SIV2 of fault recovers certain, such as 1-3 minute, first circuit breaker and the second circuit breaker can stop expanding by wireless signal order TCMS, now, TCMS can export the second extended instruction, this extended instruction is low level, when after TCMS output low level, tertiary winding K3 will power-off, thus the 3rd circuit breaker main contact K3K is disconnected, control circuit just passes through without direct current (DC), due to the first contactless coil KM power-off, first of first contactless switch main contact KMK and the first contactless switch is often held secondary contact KM1 and just all can be disconnected, air-conditioning recovers normal load, first subordinate inverter SIV1 powers to the first circuit, second subordinate inverter SIV2 powers to second circuit.
Further, as shown in Figure 4, the circuit connection diagram of the another kind of railcar auxiliary power supply expanding system that Fig. 4 provides for the utility model embodiment, described control circuit also can comprise second of one first contactless switch and often open secondary contact KM2, and described railcar controls to be connected with diagnostic system and often opens secondary contact KM2 by second of described first contactless switch and be connected with described first contactless coil KM.After the first contactless coil KM is energized, normal subordinate inverter is powered to the subordinate inverter of fault, and second of the first contactless switch is often held secondary contact KM2 and also can be closed, and line conduction residing for secondary contact KM2 often opened by second of the first contactless switch.
Further, described railcar controls to comprise signal output unit and signal input unit with diagnostic system, wherein, one end of described tertiary winding K3 is connected with described signal output unit, and second of described first contactless switch is often opened secondary contact KM2 and is connected with described signal input unit.That is, signal output unit is used for the output of responsible extended instruction, and when second of the first contactless switch often open secondary contact KM2 closed after, signal input unit and control circuit conducting, namely signal input unit receives the feedback signal expanded.
Further, described first circuit breaker is the first relay, and described second circuit breaker is the second relay, and described 3rd circuit breaker is the 3rd relay.
Railcar auxiliary power supply expanding system of the present utility model carries out energising to the first subordinate inverter SIV1 and the second subordinate inverter SIV2 respectively with the first circuit breaker and the second circuit breaker and detects, and using this objective testing conditions as judging the necessary condition of control circuit the need of energising, thus trigger the closed of the first contactless switch according to the electric situation machinery that obtains of control circuit and open, thus realization expansion power supply.This system ensure that the reliability of expansion power supply by the mode of special connection, avoids the powerup issue bringing railcar to occur due to subordinate inverter software detection signal error.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a railcar auxiliary power supply expanding system, is characterized in that, comprising:
Power circuit, control circuit, the first circuit breaker, the second circuit breaker and the first contactless switch, be in closed position during described first contactless switch energising, be in non-closed position during described first contactless switch power-off; Wherein, described power circuit comprises the first circuit and second circuit, and described first contactless switch connects described first circuit and described second circuit;
Described first circuit is connected with described control circuit by described first circuit breaker, and described second circuit is connected with described control circuit by described second circuit breaker; The "on" position of described first circuit triggers the state variation of described first circuit breaker, the "on" position of described second circuit triggers the state variation of described second circuit breaker, and described control circuit triggers the state variation of described first contactless switch according to the state of the state of described first circuit breaker and described second circuit breaker.
2. railcar auxiliary power supply expanding system according to claim 1, it is characterized in that, the "on" position of described first circuit triggers the state variation of described first circuit breaker, and the "on" position of described second circuit triggers the state variation of described second circuit breaker, specifically comprises:
When described first power on circuitry, described first circuit breaker is in the first state; When described first circuit is not energized, described first circuit breaker is in the second state; When described second circuit energising, described second circuit breaker is in the first state; When described second circuit is not energized, described first circuit breaker is in the second state.
3. railcar auxiliary power supply expanding system according to claim 1, is characterized in that, described control circuit triggers the state variation of described first contactless switch according to the state of the state of described first circuit breaker and described second circuit breaker, specifically comprises:
When described first circuit breaker and described second circuit breaker are all in the first state, described control circuit controls described first contactless switch no power, and described first contactless switch is in non-closed position, and the first circuit and second circuit cut off; When in described first circuit breaker and described second circuit breaker, one is in the first state, when another is in the second state, described control circuit controls described first contactless switch energising, and described first contactless switch is in closed position, described first circuit and second circuit conducting.
4. railcar auxiliary power supply expanding system according to claim 1, is characterized in that, described first circuit breaker comprises the first coil, and described second circuit breaker comprises the second coil, and described first contactless switch comprises the first contactless switch main contact;
Described first circuit comprises: the first subordinate inverter, the input end of described first subordinate inverter is connected with high voltage bus, the mouth of described first subordinate inverter is connected with the first coil, and the mouth of described first subordinate inverter is connected with one end of described first contactless switch main contact;
Described second circuit comprises: the second subordinate inverter, the input end of described second subordinate inverter is connected with high voltage bus, the mouth of described second subordinate inverter is connected with described second coil, and the mouth of described second subordinate inverter is connected with the other end of described first contactless switch main contact.
5. railcar auxiliary power supply expanding system according to claim 1, is characterized in that,
Described control circuit is by DC power control and comprise the 3rd circuit breaker, described 3rd circuit breaker comprises tertiary winding and the 3rd circuit breaker main contact, described first circuit breaker also comprises the first secondary contact, described second circuit breaker also comprises the second secondary contact, and described first contactless switch also comprises the first contactless coil;
One end of described 3rd circuit breaker main contact is connected with the positive pole of described direct supply, the other end of described 3rd circuit breaker main contact is connected with described first secondary contact, one end of described first contactless coil is connected with described second secondary contact, and the other end of described first contactless coil is connected with described DC power cathode; One end of described tertiary winding is connected with described DC power cathode, and the other end and the railcar of described tertiary winding control to be connected with diagnostic system;
Wherein, described first secondary contact comprise the first open contact and the first normally closed contact, and described second secondary contact comprise the second open contact and the second normally closed contact; Described first open contact is connected with described second normally closed contact, and described first normally closed contact is connected with described second open contact.
6. railcar auxiliary power supply expanding system according to claim 5, it is characterized in that, the first auxiliary open contact of one first contactless switch is also comprised in described control circuit, one end of first auxiliary open contact of described first contactless switch is connected with described 3rd circuit breaker main contact, and the other end is connected with described first contactless coil.
7. railcar auxiliary power supply expanding system according to claim 6, it is characterized in that, described control circuit also can comprise the second auxiliary open contact of one first contactless switch, and described railcar controls to be connected with diagnostic system and assists open contact to be connected with described first contactless coil by second of described first contactless switch.
8. railcar auxiliary power supply expanding system according to claim 7, it is characterized in that, described railcar controls to comprise signal output unit and signal input unit with diagnostic system, wherein, one end of described tertiary winding is connected with described signal output unit, and the second auxiliary open contact of described first contactless switch is connected with described signal input unit.
9. railcar auxiliary power supply expanding system according to claim 5, is characterized in that, described first circuit breaker is the first relay, and described second circuit breaker is the second relay, and described 3rd circuit breaker is the 3rd relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520655581.2U CN204998355U (en) | 2015-08-27 | 2015-08-27 | Supplementary power supply extend system of railcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520655581.2U CN204998355U (en) | 2015-08-27 | 2015-08-27 | Supplementary power supply extend system of railcar |
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| CN204998355U true CN204998355U (en) | 2016-01-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790419A (en) * | 2016-03-09 | 2016-07-20 | 中车青岛四方机车车辆股份有限公司 | Auxiliary power supply device for motor train unit |
| CN106476626A (en) * | 2015-08-27 | 2017-03-08 | 中车大连电力牵引研发中心有限公司 | Railcar auxiliary power supply extends system |
| CN109109680A (en) * | 2018-08-21 | 2019-01-01 | 中车大连机车车辆有限公司 | Grid-connected electric power supply control system and city rail vehicle for city rail vehicle |
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2015
- 2015-08-27 CN CN201520655581.2U patent/CN204998355U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476626A (en) * | 2015-08-27 | 2017-03-08 | 中车大连电力牵引研发中心有限公司 | Railcar auxiliary power supply extends system |
| CN105790419A (en) * | 2016-03-09 | 2016-07-20 | 中车青岛四方机车车辆股份有限公司 | Auxiliary power supply device for motor train unit |
| WO2017152652A1 (en) * | 2016-03-09 | 2017-09-14 | 中车青岛四方机车车辆股份有限公司 | Motor train unit auxiliary power supply apparatus |
| CN105790419B (en) * | 2016-03-09 | 2019-03-05 | 中车青岛四方机车车辆股份有限公司 | A kind of EMU auxiliary power supply |
| JP2019506832A (en) * | 2016-03-09 | 2019-03-07 | 中▲車▼青▲島▼四方▲機車車▼輌股▲分▼有限公司Ｃｒｒｃ Ｑｉｎｇｄａｏ Ｓｉｆａｎｇ Ｃｏ．， Ｌｔｄ． | Auxiliary power supply for electric train unit |
| US10411503B2 (en) | 2016-03-09 | 2019-09-10 | Crrc Qingdao Sifang Co., Ltd. | Motor train unit auxiliary power supply apparatus |
| CN109109680A (en) * | 2018-08-21 | 2019-01-01 | 中车大连机车车辆有限公司 | Grid-connected electric power supply control system and city rail vehicle for city rail vehicle |
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Address after: 116052 Liaoning province Dalian City Lushun Economic Development Zone Dalian Hao Yang No. 1 North Street Patentee after: CRRC DALIAN ELECTRIC TRACTION R & D CENTER CO., LTD. Address before: 116052 Liaoning province Dalian City Lushun Economic Development Zone Dalian Hao Yang No. 1 North Street Patentee before: Co., Ltd of Bei Che Dalian Electric Traction R & D Center |