CN104617656A - Non-switching-connector type power supply device for rail transit - Google Patents
Non-switching-connector type power supply device for rail transit Download PDFInfo
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- CN104617656A CN104617656A CN201510020444.6A CN201510020444A CN104617656A CN 104617656 A CN104617656 A CN 104617656A CN 201510020444 A CN201510020444 A CN 201510020444A CN 104617656 A CN104617656 A CN 104617656A
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Abstract
The invention relates to a non-switching-connector type power supply device for the rail transit. The device comprises a gating circuit, a digital monitoring module, a high-frequency isolating circuit and an AC/ DC output module; the gating circuit is used for selecting one of two externally-inputted power signals and sending to the high-frequency isolating circuit; the digital monitoring module is used for acquiring the parameters of the two externally-inputted power signals and respectively generating an isolating control signal for controlling the high-frequency isolating circuit and an output control signal for controlling the AC/ DC output module according to the parameters of the power signals; the high-frequency isolating circuit is used for performing high-frequency isolation for the inputted power signals according to the isolating control signal and sending the power signals subjected to high-frequency isolation to the AC/ DC output module; the AC/ DC output module is used for performing AC or DC output for the power signals subjected to the high-frequency isolation according to the output control signal. With the adoption of the device, the input and output of a power supply system of the rail transit can be avoided interrupting, and thus the stable, safe and reliable power supply system is achieved.
Description
Technical field
The present invention relates to a kind of track traffic signal power-supply system, particularly a kind of track traffic electric supply installation without switching node.
Background technology
China's track traffic, to high speed, highly dense, heavy duty development, needs modernization track traffic signal equipment to adapt.Along with the development of the state-of-the-art technologys such as computer technology, network technology, modern communication technology, occurred that automaticity is higher, control range is larger, and the novel signal system of more centralization, has networking, synthesization, intelligentized feature.Therefore the track traffic power-supply system of power is provided to have higher requirement to signalling arrangement.It require signal power source not only safer, more reliable, intelligence degree is higher.The novel rail model intelligent power system that our company newly researches and develops is that a kind of whole employing digital Control Technology realizes input without the power-supply system switching the high-intelligentization exported without the real-time monitoring interrupted.AC and DC module all adopts Digital Control, becomes a kind of high accuracy, high efficiency, high reliability, High Power Factor, low distortion, low noise, energy-conserving and environment-protective, easy maintenance, can meet various track traffic signal equipment electricity consumption requirement.
Track traffic signal power-supply system present situation:
From 2000, there is intelligent power supply panel.Because along with the modern fast development of rail transport particularly city underground development, track signal technology and equipment significant progress, and power supply unit seriously lags behind the development of signalling technique.Although original track power-supply system improves to some extent, but adopt traditional power frequency electromagnet technology, electric power system is huge, efficiency is low, reliability is not high, intelligence degree is low, there is hidden danger in train traffic safety, adopts the track signal intelligent power system of new generation of power electronic technology and computer technology to arise at the historic moment and obtain in this case and develop rapidly.Track power-supply system is mainly by purpose monitoring now, and switching controls and full high-frequency module form, and wherein DC Module completes isolation voltage stabilizing output, and AC module completes voltage stabilizing, exports and uses power frequency isolation transformer isolation and amplifier.The input of track traffic signal power supply has two-way civil power, track Special electric and standby electricity.Active-standby switch working method and two-way power supply simultaneous mode of working can be divided into by its working method.
Active-standby switch working method: two-way power supply one main is for switch operating, within the time being not more than 0.15S, stand-by power supply is switched to by H bridge when power failure, in handoff procedure, input power has the break period of 0.15S, do not allow to interrupt electricity consumption (general DC power supply) in this time to be powered (electric capacity or battery) by energy storage device, power supply (general AC power) can be interrupted and interrupt 0.15S.
Two-way electricity simultaneous mode of working: two-way power supply works simultaneously, two-way electricity input power module respectively, time normal, two-way civil power is with the time-division but load, be switched to another road power supply 0.15 by H-bridge circuit when a road power failure, in the process of switching, the function reaching and export without interrupting is born in whole load by half power module.Power module adopts 1+1 backup in this mode of operation, and this just needs the power module doubled, and adds power-supply system cost.
Above two kinds of working methods input has H-bridge circuit to switch, and H-bridge circuit switches in real work and very easily causes the damage of H bridge itself with large load switching thus cause a whole set of power system failure.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of full-digital control without switching point, the track signal power-supply system exporting endless.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of track traffic electric supply installation without two-way contact, comprises gating circuit, digital supervision module, high-frequency isolation circuit and alternating current-direct current output module;
Described gating circuit, for selecting a road in signal in the two-way power supply signal that inputs in outside and flowing to high-frequency isolation circuit; When main power source has electric separation to select main power source, main power source does not have electric separation to select attached power supply;
Described digital supervision module, for gathering the parameter of the two-way power supply signal of outside input, and produces the isolation control signal of control high-frequency isolation circuit and the output control signal of alternating current-direct current output module respectively according to the parameter of power supply signal;
Described high-frequency isolation circuit, for carrying out high-frequency isolation according to the power supply signal of isolation control signal to input, and sends to alternating current-direct current output module by the power supply signal after high-frequency isolation;
Described alternating current-direct current output module, for being undertaken exchanging or direct current output by the power supply signal after high-frequency isolation according to output control signal.
The invention has the beneficial effects as follows: the electric power system that the present invention makes track traffic power-supply system really realize without two-way contact, thus make input and output that track traffic power-supply system is done without interruption, become stable, safe and reliable power-supply system.Its key technology, in full-digital control module, achieves parallel connection, current-sharing, fault escape mechanism.
On the basis of technique scheme, the present invention can also do following improvement.
Further, also comprise two industrial frequency rectifying filter circuits respectively using a road power supply signal as input in described track traffic electric supply installation, described industrial frequency rectifying filter circuit is used for carrying out rectification and filtering process to the power supply signal of access.
Further, described alternating current-direct current output module comprises ac-dc converter circuit and AC output module;
Described ac-dc converter circuit is used for the power supply signal power supply signal of the direct current of high-frequency isolation circuit output being converted to interchange, and described AC output module is used for the power supply signal of interchange to export.
Further, high power AC isolation module and the first flow equalizing circuit is also comprised in described AC output module;
Described high power AC isolation module, sends the first flow equalizing circuit to after the power supply signal of interchange being carried out interchange isolation;
Described first flow equalizing circuit, for gathering the electric current that outside track AC power supply device exports, exports after the electric current that the power supply signal after isolating and outside track AC power supply device export carries out current-sharing process to interchange.
Further, described alternating current-direct current output module comprises direct current output module, and the power supply signal that described direct current output module is used for the direct current exported by high-frequency isolation circuit exports.
Further, high power DC isolation module and the second flow equalizing circuit is also comprised in described DC output circuit;
Described high power DC isolation module, sends the second flow equalizing circuit to after the power supply signal of direct current is carried out DC-isolation;
The electric current that described second flow equalizing circuit exports for gathering outside track AC power supply device, exports after the electric current exported power supply signal and the outside track AC power supply device of direct current carries out current-sharing process.
Further, also charging module is comprised in described track traffic electric supply installation, described charging module comprises storage battery and charging control circuit, the charging control signal that described charging control circuit sends for receiving digital supervision module, and is charge in batteries according to charging control signal.
Further, also phase-control circuit is comprised in described track traffic electric supply installation, the phase control signal that described phase-control circuit sends for receiving digital supervision module, and according to phase control signal, phase control is carried out to the power supply signal after high-frequency isolation.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, gating circuit, 2, digital supervision module, 3, high-frequency isolation circuit, 4, alternating current-direct current output module, 4-1, ac-dc converter circuit, 4-2, AC output module, 4-2.1, high power AC isolation module, 4-2.2, the first flow equalizing circuit, 4-3, DC output circuit, 4-3.1, high power DC isolation module, 4-3.2, the second flow equalizing circuit, 5, industrial frequency rectifying filter circuit, 6, charging module, 6-1, storage battery, 6-2, charging control circuit, 7, phase-control circuit.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
Without a track traffic electric supply installation for two-way contact, comprise gating circuit 1, digital supervision module 2, high-frequency isolation circuit 3 and alternating current-direct current output module 4;
Described gating circuit 1, for (road a main power source in the two-way power supply signal that inputs in outside, another road is attached power supply) select (main power source has electric separation to select main power source, and main power source does not have electric separation to select an attached power supply) road in signal and flow to high-frequency isolation circuit 3;
Described digital supervision module 2, for gathering the parameter of the two-way power supply signal of outside input, and produces the isolation control signal of control high-frequency isolation circuit 3 and the output control signal of alternating current-direct current output module 4 respectively according to the parameter of power supply signal;
Described high-frequency isolation circuit 3, for carrying out high-frequency isolation according to the power supply signal of isolation control signal to input, and sends to alternating current-direct current output module 4 by the power supply signal after high-frequency isolation;
Described alternating current-direct current output module 4, for being undertaken exchanging or direct current output by the power supply signal after high-frequency isolation according to output control signal.
Also comprise two industrial frequency rectifying filter circuits 5 respectively using a road power supply signal as input in described track traffic electric supply installation, described industrial frequency rectifying filter circuit 5 is for carrying out rectification and filtering process to the power supply signal of access.
Described alternating current-direct current output module 4 comprises ac-dc converter circuit 4-1 and AC output module 4-2;
Described ac-dc converter circuit 4-1 is used for the power supply signal power supply signal of the direct current of high-frequency isolation circuit output being converted to interchange; Described AC output module 4-2 is used for the power supply signal of interchange to export.
High power AC isolation module 4-2.1 and the first flow equalizing circuit 4-2.2 is also comprised in described AC output module 4-2;
Described high power AC isolation module 4-2.1, sends the first flow equalizing circuit to after the power supply signal of interchange being carried out interchange isolation;
Described first flow equalizing circuit 4-2.2, for gathering the electric current that outside track AC power supply device exports, exports after the electric current that the power supply signal after isolating and outside track AC power supply device export carries out current-sharing process to interchange.
Described alternating current-direct current output module 4 comprises DC output circuit 4-3, and the power supply signal that described DC output circuit 4-3 is used for the direct current exported by high-frequency isolation circuit exports.
High power DC isolation module 4-3.1 and the second flow equalizing circuit 4-3.2 is also comprised in described DC output circuit 4-3;
Described high power DC isolation module 4-3.1, sends the second flow equalizing circuit to after the power supply signal of direct current is carried out DC-isolation;
Described second flow equalizing circuit 4-3.2, for gathering the electric current that outside track AC power supply device exports, exports after the electric current exported power supply signal and the outside track AC power supply device of direct current carries out current-sharing process.
Charging module 6 is also comprised in described track traffic electric supply installation, described charging module 6 comprises storage battery 6-1 and charging control circuit 6-2, the charging control signal that described charging control circuit 6-2 sends for receiving digital supervision module 2, and be that storage battery 6-1 charges according to charging control signal.
Also comprise phase-control circuit 7 in described track traffic electric supply installation, the phase control signal that described phase-control circuit 7 sends for receiving digital supervision module, and according to phase control signal, phase control is carried out to the power supply signal after high-frequency isolation.
By the direct access module of two-way civil power, fully phase out H-bridge circuit.System power supply pattern adopts double loop power supply to work simultaneously, and two-way power supply is input power module simultaneously, adopts Full-digital control circuit to realize the work of two-way commercial power parallel in module.When municipal power failure, directly not influential system out of service normally works.All kinds of power modules of native system are full-digital control and realize parallel current-sharing redundancy of effort, follow fault escape mechanism and automatically log off during any one module failure, and residue module can work on.And endless number system in parallel in AC/DC Modularity Theory.It is for subsequent use that all power modules realize N+1 mode, and a large amount of decreases spare module quantity.Module digitalized current controls, monitoring Digital Control, realizes in the whole rail system of access.By authorizing the function that can also realize long-range real-time regulation output electric current and voltage.
One, module characteristic:
1. duplicate supply input, a road power failure, equipment automatically switches to fault-free one road power supply;
2. module digitalized current controls, inside modules total digitalization, monitoring, control; Exit in real time during fault output without impact.
3. storage battery interface, circuit can Parallel opertation to alternating current-direct current module, ensure when two-way power failure, continue ensure module normally work.
Two, the system features of module composition:
1. non-relay formula electrical source exchange (H bridge, Y bridge etc.) circuit; Ensure that circuit exports without interrupting;
2. module adopts the design of N+1 redundant interface; A large amount of decreases spare module quantity;
3. the fault escape mechanism of module own logs off automatically, and residue module can work on; During input power fault, directly not influential system out of service normally works;
4. system adopts total digitalization to detect, diagnoses; Can the feature such as combined network communication.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. without a track traffic electric supply installation for two-way contact, it is characterized in that: comprise gating circuit (1), digital supervision module (2), high-frequency isolation circuit (3) and alternating current-direct current output module (4);
Described gating circuit (1), for selecting a road in the two-way power supply signal that inputs in outside and flowing to high-frequency isolation circuit (3);
Described digital supervision module (2), for gathering the parameter of the two-way power supply signal of outside input, and produce the isolation control signal of control high-frequency isolation circuit (3) and the output control signal of alternating current-direct current output module (4) respectively according to the parameter of power supply signal;
Described high-frequency isolation circuit (3), for carrying out high-frequency isolation according to the power supply signal of isolation control signal to input, and sends to alternating current-direct current output module (4) by the power supply signal after high-frequency isolation;
Described alternating current-direct current output module (4), for being undertaken exchanging or direct current output by the power supply signal after high-frequency isolation according to output control signal.
2. the track traffic electric supply installation without two-way contact according to claim 1, it is characterized in that: also comprise two industrial frequency rectifying filter circuits (5) respectively using a road power supply signal as input in described track traffic electric supply installation, described industrial frequency rectifying filter circuit (5) is for carrying out rectification and filtering process to the power supply signal of access.
3. the track traffic electric supply installation without two-way contact according to claim 2, is characterized in that: described alternating current-direct current output module (4) comprises ac-dc converter circuit (4-1) and AC output module (4-2);
Described ac-dc converter circuit (4-1) is converted to the power supply signal of interchange for the power supply signal of the direct current exported by high-frequency isolation circuit; Described AC output module (4-2) is for exporting the power supply signal of interchange.
4. the track traffic electric supply installation without two-way contact according to claim 3, is characterized in that: also comprise high power AC isolation module (4-2.1) and the first flow equalizing circuit (4-2.2) in described AC output module (4-2);
Described high power AC isolation module (4-2.1), sends the first flow equalizing circuit to after the power supply signal of interchange being carried out interchange isolation;
Described first flow equalizing circuit (4-2.2), for gathering the electric current that outside track AC power supply device exports, exports after the electric current that the power supply signal after isolating and outside track AC power supply device export carries out current-sharing process to interchange.
5. the track traffic electric supply installation without two-way contact according to claim 2, it is characterized in that: described alternating current-direct current output module (4) comprises DC output circuit (4-3), and described DC output circuit (4-3) exports for the power supply signal of the direct current exported by high-frequency isolation circuit.
6. the track traffic electric supply installation without two-way contact according to claim 5, is characterized in that: also comprise high power DC isolation module (4-3.1) and the second flow equalizing circuit (4-3.2) in described DC output circuit (4-3);
Described high power DC isolation module (4-3.1), sends the second flow equalizing circuit to after the power supply signal of direct current is carried out DC-isolation;
Described second flow equalizing circuit (4-3.2), for gathering the electric current that outside track AC power supply device exports, exports after the electric current exported power supply signal and the outside track AC power supply device of direct current carries out current-sharing process.
7. according to the arbitrary described track traffic electric supply installation without two-way contact of claim 1 to 6, it is characterized in that: in described track traffic electric supply installation, also comprise charging module (6), described charging module (6) comprises storage battery (6-1) and charging control circuit (6-2), the charging control signal that described charging control circuit (6-2) sends for receiving digital supervision module (2), and be storage battery (6-1) charging according to charging control signal.
8. according to the arbitrary described track traffic electric supply installation without two-way contact of claim 1 to 6, it is characterized in that: in described track traffic electric supply installation, also comprise phase-control circuit (7), the phase control signal that described phase-control circuit (7) sends for receiving digital supervision module, and according to phase control signal, phase control is carried out to the power supply signal after high-frequency isolation.
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| CN201510020444.6A CN104617656B (en) | 2015-01-15 | 2015-01-15 | A kind of track traffic electric supply installation without two-way contact |
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| CN201510020444.6A CN104617656B (en) | 2015-01-15 | 2015-01-15 | A kind of track traffic electric supply installation without two-way contact |
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