CN101599661B - Full high-frequency railway signal intelligent power supply panel without switching contact - Google Patents
Full high-frequency railway signal intelligent power supply panel without switching contact Download PDFInfo
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- CN101599661B CN101599661B CN2009100974309A CN200910097430A CN101599661B CN 101599661 B CN101599661 B CN 101599661B CN 2009100974309 A CN2009100974309 A CN 2009100974309A CN 200910097430 A CN200910097430 A CN 200910097430A CN 101599661 B CN101599661 B CN 101599661B
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Abstract
The invention relates to a full high-frequency railway signal intelligent power supply panel without a switching contact, wherein the power supply panel is a static power supply system without the switching contact adopting a power electronic high frequency switching technology and a computer technology. The invention is characterized in that: the power supply mode of the system adopts double-loop power supply working at the same time and alternating current H bridge type double bus duty type; each output power module adopts a 1+1 parallel connection current equalizing redundant circuit; and each power distribution loop consists of two modules with the same capacity by means of parallel connection. The invention leads the intelligent power supply panel to be really taken as the static power supply system without the switching contact so that the railway signal intelligent power supply panel is input and output without interruption to be the stable, safe and credible power supply system. The key technology is a high-frequency conversion module, thereby realizing a work bus mechanism with parallel connection, current equalization, same phase, same frequency and automatic withdrawing when failure occurs.
Description
Technical field
The present invention relates to railway signal power supply screen, particularly be the railway signal intelligent power supply panel that a kind of full high-frequency does not have two-way contact.
Background technology
China Railway needs the modernized railway signalling arrangement to adapt to high speed, highly dense, heavy duty development.Along with the development of state-of-the-art technologys such as computer technology, network technology, modern communication technology, it is higher automaticity to have occurred, and control range is bigger, the novel signal system of centralization more, and they have networking, synthesization, intelligentized characteristics.Obviously, provide the railway signal power supply screen of power to have higher requirement to signalling arrangement.It requires signal power source not only safer, more reliable, and intelligent degree is higher.The PZXG1 sections road signal intelligent power supply panel of the common research and development of our company and Guangzhou railway electrical factory is static-powered systems of the no double-throw contact of a kind of whole employing power electronic technology and computer technology, accomplishes that really input and output all realize zero interruption of power supply.The AC and DC power module all passes through AC-DC-AC (or AC-DC) high frequency conversion, really realizes modularization, all energy parallel current-sharing work, intellectual monitoring perfect in shape and function.Become a kind of high accuracy, high efficiency, High Power Factor, high reliability, low temperature rise, low distortion, low noise, energy-conserving and environment-protective, easy maintenance, can satisfy the railway signal intelligent power supply panel of new generation of various modern railways signalling arrangement electricity consumption requirements.It makes the railway signal intelligent power supply panel realize new leap.
One, railway signal power supply screen development course and present situation
The China railways signal power source from the later stage sixties 20th century, has entered one and updated, and is perfect gradually, constantly the new historical stage of development, arresting signalling electric screen occurred.And As time goes on, progressively form signal power source series covering extensive fields.Yet the improvement of various power supply panel and development (removing the three-phase alternating current interpreter, 25Hz track power supply panel) mainly are to adopt different AC voltage regulator.
Early stage power supply panel once adopted AC voltage-stabilizing equipment such as supersaturation reactor, auto-transformer type pressurizer, and their voltage regulation performances are relatively poor, or because of reliability is not high, using induction voltage regulator instead the seventies in 20th century carries out AC voltage-stabilizing; Adopt parameter voltage stabilizator the nineties in 20th century again, and the non-contact type pressurizer carries out voltage stabilizing.Aspect voltage regulation performance, improve to some extent.Therefore first generation power supply panel is to develop along with the power frequency electromagnetic technique development of AC voltage regulator.
Most important development is since 2000, intelligent power supply panel occurred.Because along with railway transportation modernization fast development, railway signal technology and equipment have had significant progress, and power supply unit seriously lags behind the development of signalling technique.Although original railway signal power supply improves to some extent, but adopt traditional power frequency electromagnetic technique, electric power system is huge, efficient is low, not high, the intelligent degree of reliability is low, and there is hidden danger in train traffic safety, obviously can not adapt to the development of modern signal technology, be badly in need of updating.In this case, adopt the railway signal intelligent power supply panel of new generation of power electronic technology and computer technology to arise at the historic moment, and obtain development rapidly, this is the major progress of signal power source technology.
Intelligent power supply panel has one to deepen constantly the evolution of updating again.The combination technique of main circuit from power supply panel has the intelligent power supply panel that the intelligent power supply panel, power frequency electromagnetic technique and the high-frequency power electronic technology that adopt the power frequency electromagnetic technique combine, the intelligent power supply panel of full high-frequency power electronic technology respectively.
(1) intelligent power supply panel of employing power frequency electromagnetic technique.
This power supply panel is meant voltage stabilizing, rectification, frequency division, the isolated part of power supply, all adopt devices such as ferromagnetic pressurizer based on the power frequency electromagnetic system, phase controlled rectifier, ferromagnetic frequency divider, E (R) type isolating transformer to form, it is to have increased monitoring function on the basis of former power supply panel, to can modular part having carried out modularization.In main circuit system, the two-way power supply is with a main switching mode job that is equipped with, and each out-put supply module is that the 1+1 mode is standby.
The characteristics price of this class power supply panel is lower, but backward in technique, fault is more, and overall efficiency is low, and weight is big, noise and temperature rise, and out-put supply can the instantaneous interruption power supply when switching of two-way power supply and main backup module switched.
(2) intelligent power supply panel that combines of power frequency electromagnetic technique and high-frequency power electronic technology.
This type of power supply panel has adopted power frequency components and parts and high-frequency power electronic devices respectively in the different parts of power supply panel, different circuit; In main circuit system, the two-way power supply is equipped with switching mode work with one main one.
Relay power, the power supply that automatically closes up adopt the high frequency switch power technology, have realized the module parallel current-sharing, and power supply was not interrupted when the two-way power supply switched.The signal power supply of lighting a lamp, the 50Hz track circuit adopts the power frequency electromagnetic technique, and instantaneous interruption (less than 0.15s) can appear in out-put supply when the two-way power supply switched.The direct-current point machine power supply, 25Hz track power supply and locally supplied power source have and adopt power electronic technology, also has to adopt electromagnetic technique.
The price of this class power supply panel is lower, and technology is advanced, and it is more reliable to work, and efficient is higher, and VD is adjustable continuously, and the direct current component power supply was not interrupted when the two-way power supply switched.But the complete sum of technology systematicness is not enough, and AC portion is backward in technique, and efficient is low, and weight is big, the noise height, and out-put supply also can the instantaneous interruption power supply when two-way power supply switched.Traffic safety is still deposited hidden danger.
(3) intelligent power supply panel of full high-frequency power electronic technology.
This class power supply panel is meant that the function element of power supply panel each several part all is made up of the electronic circuit of high frequency modulated, but it is divided into again two types of two-way contact and no two-way contacts are arranged.
A., the intelligence screen that two-way contact is arranged.Two-way power supply one main one is equipped with switch operating, and the active and standby work of each generic module exists the two-way power supply to switch in the system and the active and standby module of AC portion is switched two switching links.
In main circuit system, adopted the high-frequency inversion Phase Lock Technique though exchange out-put supply, exchanging module can not parallel current-sharing.Adopted a main 1+1 working method that is equipped with, during the primary module fault, switched to spare module work with relay circuit.This class power supply, although all adopt the high-frequency power electronic technology, high-frequency conversion module can not parallel current-sharing, still exists two-stage that the switching link of contact is arranged in the system.When switching of two-way power supply or main backup module switch, might make to exchange the power supply of out-put supply instantaneous interruption.It is a fault point that power supply switches link itself, influences the reliability of system.Full high-frequency has the intelligent power supply panel of two-way contact that new leap has been arranged again technically, but it does not have fundamentally resolution system reliability problems.Its reason be high-frequency conversion module can not parallel connection, current-sharing, homophase, do not have the malfunctioning module mechanism of bus of deactivating automatically, thereby can't realize not having the breakthrough of the intelligence screen of switching node.At present, the intelligence screen in usefulness is not realized this breakthrough on the railway.
B. the intelligence screen that does not have two-way contact.Not with the switching link of contact, become static electric power system in the whole system.The two-way power supply is worked simultaneously, and all DC power supply all adopt high frequency switch power technology (AC-DC), and all AC power all adopt high-frequency inversion Phase Lock Technique (AC-DC-AC).The AC and DC module all adopts 1+1 or n+m parallel connection, current-sharing, redundant technique.It has realized the technology of intelligent power screen products is integrated.All adopt ripe high-frequency power electronic technology, it is strong to adapt to capacity of power; Safe and reliable, environmental protection and energy saving, complete machine power density height, in light weight, noise is low, and the life-span is long; Whole modular constructions, dilatation is convenient, and on-the-spot nothing is safeguarded; Because the AC and DC module is n+1 or n+m parallel current-sharing redundancy, greatly reduces the reserve capacity of system; One tunnel power interruptions or the phase failure, misphase in the system, any one module failure does not influence the operate as normal of system; Do not having not use the mode of capacitance energy storage under the situation of storage battery, realizing zero interruption of powering when the two-way power supply switches, thoroughly solving for many years owing to the two-way power supply switches the various faults that cause.
Two, summary of the invention
In order to overcome above-mentioned technical defective, the invention provides the railway signal intelligent power supply panel that a kind of full high-frequency does not have two-way contact.
To achieve these goals, the present invention adopts following technical scheme:
Full high-frequency does not have the railway signal intelligent power supply panel of two-way contact, and it adopts the static-powered system of the no two-way contact of power electronics HF switch technology and computer technology.System's powering mode adopts double loop power supply to work simultaneously, exchanges " H " form double-bus duty.Each road out-put supply module adopts 1+1 parallel current-sharing redundant circuit, and each distribution loop all is formed in parallel by two equal capacity modules.These two modules are connected on respectively on the different bus of two-way.Promptly a module is connected on the bus power supply of I road, and another module is connected on the bus power supply of II road.During operate as normal, each module is respectively born 1/2 signal load, when one tunnel power interruptions wherein, do not interrupt this road module and bear whole loads, simultaneously, this road electricity by " H " bridge at 60ms with interior to having interrupted this road module for power supply, recover two module parallel operations; When arbitrary road module breaks down, out of service and warning, another module is born whole burdens automatically; After having interrupted one road electricity recovery or malfunctioning module replacing, distribution loop recovers two module parallel operations automatically.Like this, fundamentally eliminate the instant cut-off of two-way external power handoff procedure, more do not exist main backup module to switch link, really accomplish the interruption of output nothing, realized the new leap of railway signal intelligent power supply panel of new generation.
" H " bridge-type double-bus is to connect into " H " bridge by the output switching terminal that two reverse automatic switches are imported power supply with two-way.
Be provided with in the above-mentioned module that the competition of principal and subordinate's machine, decision circuitry, error feedback signal circuit, triangular wave produce control circuit, multiplexer circuit is passed through in low band arm control, multiplexer circuit connects low band arm driving, comparison circuit, triangular wave reference circuit respectively, this dynamo-electric current feedback circuit is connected with comparison circuit, the triangular wave reference circuit of comparison circuit connects the next stage comparison circuit respectively, and comparison circuit control high frequency arm drives.The multiplexer circuit of two equal modules connects low band arm driving, comparison circuit, triangular wave reference circuit,
Full high-frequency does not have the operation principle of the railway signal intelligent power supply panel of two-way contact:
1. the supply power mode of power supply panel is that two-way input power supply is powered simultaneously, exchanges " H " bridge-type double-bus duty.Be that the two-way power supply is powered to power supply panel simultaneously, when arbitrary road input power supply breaks down, do not interrupt this road module and bear whole loads; Simultaneously, this road electricity by " H " bridge less than 60ms with interior to having interrupted this road module for power supply.Realized that arbitrary road in the two-way input power supply drops into and withdraw from, do not interrupt under misphase and the various situations such as phase shortage, overvoltage/undervoltage the power supply to loading.When the input power up that breaks down just often, by " H " bridge, make it again to the power supply of affiliated load.
2. all kinds of power modules of this power supply panel are the parallel current-sharing redundancy of effort, following the fault escape mechanism during any module failure logs off automatically, the residue module can continue to power to the load, do not interrupt power supply when realizing any module failure, guaranteed the trouble free service requirement of various loads load.
Advantage of the present invention is:
Make intelligent power supply panel really become the static-powered system of no two-way contact, thereby make the railway signal intelligent power supply panel accomplish that really input and output do not have interruption, become stable, safe and reliable power-supply system.Its key technology is high-frequency conversion module, realized parallel connection, current-sharing, homophase, with frequently, the fault bus mechanism of deactivating automatically arranged.Its core technology main points are as follows:
1. exchanging module parallel current-sharing pattern is principal and subordinate's machine control mode.Power on competition and fault-free judgment principle are followed in the judgement of principal and subordinate's machine, be that module in parallel is under trouble-free situation, competition produces by powering on, who is exactly a main frame soon for who, main frame is sent to slave to the error feedback signal of this machine, triangular wave generation control signal, low band arm control signal, thereby reaches the homophase of module in parallel, same frequency.
2. sharing control is controlled output voltage amplitude separately, thereby is reached current-sharing by the control signal that this electromechanics stream feedback signal and error feedback signal relatively produce.
3. module in parallel is under the situation that slave breaks down, and slave directly withdraws from; Under the situation that main frame breaks down, main frame withdraws from, and slave becomes main frame, change-over time＜1mS at once.
Description of drawings
Fig. 1 is a principle block diagram of the present invention;
Fig. 2 is the structural representation of the present invention " H " bridge;
Fig. 3 is the block diagram of module of the present invention.
Three, specific embodiments
Further specify with reference to the accompanying drawings.
As shown in Figure 1, full high-frequency does not have the railway signal intelligent power supply panel of two-way contact, and it adopts the static-powered system of the no two-way contact of power electronics HF switch technology and computer technology.System's powering mode adopts double loop power supply to work simultaneously, exchanges " H " form double-bus duty.Each road out-put supply module adopts 1+1 parallel current-sharing redundant circuit, and each distribution loop all is formed in parallel by two equal capacity modules.These two modules are connected on respectively on the different bus of two-way.
As shown in Figure 2, " H " form double-bus is to connect into " H " bridge by the output that two reversers are imported power supply with two-way, and two switches are connected with intellectual monitoring control system on the power supply panel.
As shown in Figure 3, be provided with in the module that the competition of principal and subordinate's machine, decision circuitry, error feedback signal circuit, triangular wave produce control circuit, multiplexer circuit is passed through in low band arm control, multiplexer circuit connects low band arm driving, comparison circuit, triangular wave reference circuit respectively, this dynamo-electric current feedback circuit is connected with comparison circuit, the triangular wave reference circuit of comparison circuit connects the next stage comparison circuit respectively, and comparison circuit control high frequency arm drives.The multiplexer circuit of two equal modules connects low band arm driving, comparison circuit, triangular wave reference circuit.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to the foregoing description, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (1)
1. a full high-frequency does not have the railway signal intelligent power supply panel of two-way contact, be to adopt the full high-frequency of power electronics HF switch technology and computer technology not have the static-powered system of two-way contact, it is characterized in that: system's powering mode adopts the two-way power supply to work simultaneously, exchange " H " bridge-type double-bus duty, promptly two-way is imported between the power supply in power supply panel, by two reversers, be connected on the output switching terminal of two-way input power supply respectively, the likeness in form of formation " H " bridge;
Each all power module of road out-put supply all adopts 1+1 parallel current-sharing redundant circuit, each distribution output loop all is formed in parallel by two equal capacity power source modules, these two power modules are connected on respectively on the different power source bus of two-way, promptly a power module is connected on the power source bus of I road, another power module is connected on the power source bus of II road, during operate as normal, each power module is respectively born 50% signal load, when one road power supply wherein breaks down and interrupts, do not interrupt this road power module and bear whole loads automatically, simultaneously, the reverser action, in 60ms, this road power module power supply to interrupting recovers two power module parallel operations to this road power supply by " H " bridge; After trouble power was repaired, the reverser action recovered normal power supply;
When arbitrary road power module breaks down, deactivate automatically bus and warning, this power module that does not break down is born whole loads automatically; After the power module that breaks down was changed, the distribution output loop recovered two-way power module parallel operation automatically; Like this, fundamentally eliminate the instant cut-off in the two-way power supply handoff procedure, more do not exist the main power supply module to switch link, realized that the signal power source input and output do not have interruption.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100974309A CN101599661B (en) | 2009-04-02 | 2009-04-02 | Full high-frequency railway signal intelligent power supply panel without switching contact |
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| CN2009100974309A CN101599661B (en) | 2009-04-02 | 2009-04-02 | Full high-frequency railway signal intelligent power supply panel without switching contact |
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| CN101599661B true CN101599661B (en) | 2011-08-10 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104237586B (en) * | 2014-08-19 | 2017-06-06 | 国网河南省电力公司济源供电公司 | The high-precision measuring system of double-bus power supply circuit |
| CN104617656B (en) * | 2015-01-15 | 2017-08-01 | 固安信通信号技术股份有限公司 | A kind of track traffic electric supply installation without two-way contact |
| CN105449830B (en) * | 2015-12-31 | 2018-04-10 | 深圳通业科技股份有限公司 | A kind of DC600V train power supplies power-supply system |
| CN105515166B (en) * | 2016-01-19 | 2018-07-24 | 国网福建省电力有限公司泉州供电公司 | 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can back brake maintenance voltage allocation plan |
| CN105655880B (en) * | 2016-01-19 | 2018-06-19 | 国网福建省电力有限公司泉州供电公司 | The configuration mode of 110 kilovolts of system busbar voltage load equiblibrium mass distributions of intelligent substation double bus scheme mode |
| CN106411200B (en) * | 2016-09-30 | 2018-08-31 | 西安长峰机电研究所 | Self power generation power back-off equipment in a kind of traveling |
| CN106410803B (en) * | 2016-09-30 | 2019-06-18 | 中车南京浦镇车辆有限公司 | A kind of composition and operation method for energy storage type tramcar engineering supply network |
| CN108711931B (en) * | 2018-06-25 | 2023-08-18 | 柳州辰天科技有限责任公司 | Controllable composite power supply three-phase alternating current electric switch machine phase failure protector |
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