CN105244998A - Emergency power supply (EPS) having modular structure - Google Patents
Emergency power supply (EPS) having modular structure Download PDFInfo
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- CN105244998A CN105244998A CN201510766028.0A CN201510766028A CN105244998A CN 105244998 A CN105244998 A CN 105244998A CN 201510766028 A CN201510766028 A CN 201510766028A CN 105244998 A CN105244998 A CN 105244998A
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Abstract
The invention discloses an emergency power supply (EPS) having a modular structure. The EPS comprises a battery pack, a charging system, an inversion system, a change-over switch module, a feeder line detection module, a battery inspection tour module and a monitoring device; the battery pack comprises n single batteries, the charging system comprises n charging modules, and the inversion system comprises n inversion modules; and an AC input is simultaneously accessed to input ends of the n charging modules, an output end of each charging module is connected to a charging input end of one battery, an output end of each single battery is connected to an input end of one inversion module, output ends of the n inversion modules are simultaneously accessed to an input end of the change-over switch module, and an output end of the change-over switch module is connected with a load. The emergency power supply (EPS), provided in the invention, having the modular structure adopts modular design, and can conveniently achieve maintenance of the EPS; and the emergency power supply (EPS) having the modular structure improves stability of the EPS, and solves the problems of the large failure probability and maintenance inconvenience of a traditional EPS.
Description
Technical field
The present invention relates to a kind of modular construction EPS (EmergencyPowerSupply) emergency power supply, belong to emergency power supply technology.
Background technology
Along with the high speed development of national economy, the traffic in city is more and more tighter pretty, and in order to alleviate urban traffic pressure, a domestic line tier 2 cities is substantially all actively building track traffic infrastructure at present.In order to ensure the safety of Metro Passenger, the normal operation of emergency-lighting set safety at each station is even more important, after station civil power is because of fault outage, EPS emergency power supply must be had normally to meet an urgent need as lighting is powered, ensure the timely and effective safe escape station of passenger's energy, in order to avoid cause the accident of trampling, this just requires that emergency power supply should have higher stability.EPS emergency power supply EPS emergency power supply when municipal power failure is avoided to lose its emergent effect, thus make this emergency power supply lose its emergent base attribute, more seriously, this will affect the reliability of people to emergency power supply, thus increasing Psychological phobia and the sense of insecurity of people, this has had a strong impact on the stable of society.Based on the problems referred to above,
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides modular construction EPS emergency power supply, to solve the problem that traditional E PS emergency power supply failure probability is large, maintenance is inconvenient.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of modular construction EPS emergency power supply, comprises battery pack, charging system, inversion system, change-over switch module, feeder line detection module, battery inspection module and supervising device;
Described battery pack comprises n and saves monocell, and charging system comprises n charging module, and inversion system comprises n inversion module; Exchange the input that input is linked into n charging module simultaneously, the output of each charging module is connected to the input of a batteries charging, the output often saving monocell is connected to the input of an inversion module, the output of n inversion module is linked into the input of change-over switch module simultaneously, and the output of change-over switch module connects load; Be connected on the monocell on a circuit, charging module and inversion module and form an EPS unit;
Described feeder line detection module patrols and examines the inverter voltage of feeder line output state and battery pack in real time, and the fault-signal of feeder line is sent to change-over switch module as the control signal of change-over switch module by feeder line detection module;
Described battery inspection module saves to n the detection that monocell carries out internal resistance, voltage and capacity respectively, and the threshold range according to internal resistance, voltage and capacity judges whether monocell breaks down;
Described supervising device carries out transfer of data with charging system, inversion system, change-over switch module, feeder line detection module and battery inspection module respectively by communication bus.
The EPS emergency power supply of this case adopts modularized design, adopts high frequency, modular hot-plug construction connects, can realize for subsequent use each other and on-line maintenance between inside modules and module between inside modules and module; And modular design can carry out data backup and storage easily, improve the reliability of system, also facilitate dilatation.The battery pack of this case, charging system and inversion system define n EPS unit altogether, are equivalent to an existing large EPS unit and divide into n in parallel little EPS unit; Due to this case employing is parallel-connection structure, therefore, when indivedual EPS unit wherein break down, can not affect the use of whole system, increase substantially the reliability of system.
Because track traffic power supply reliability is at ordinary times very high, therefore very easily neglect the maintenance to battery, finally cause battery pole plates passivation after several years, make to provide electric energy crucial moment; This case adds battery inspection module relative to prior art, and using the core component of battery inspection module as EPS emergency power supply, points out administrative staff to change battery, improve the reliability of system by battery inspection module Timeliness coverage fail battery.
Concrete, described supervising device carries out transfer of data with charging system, inversion system, change-over switch module, feeder line detection module and battery inspection module respectively by RS485 communication bus, monitored results is presented on monitoring screen by supervising device, and supervising device leads to ICP/IP protocol and monitor data is uploaded to Surveillance center.Administrative staff can check the real-time running data of every platform EPS emergency power supply by Surveillance center, thus learn the operating state of EPS emergency power supply, when pinpointing the problems, administrative staff can safeguard fault EPS emergency power supply the very first time, reduce the workload of timing inspection while ensureing the stable operation of ESP emergency power supply.
Concrete, described feeder line detection module patrols and examines the line voltage of feeder line, the inverter voltage of battery pack and load current in real time: when mains-supplied breaks down, and is switched to battery-powered by change-over switch module; When mains-supplied is recovered normal, switch back mains-supplied by change-over switch module; When load surcharge or short circuit, cut off load by change-over switch module and send knocking noise visual alarm simultaneously.
Concrete, described change-over switch module adopts the static two-way switch of STS to realize.
Beneficial effect: modular construction EPS emergency power supply provided by the invention, adopt modularized design, conveniently can realize the maintenance of EPS emergency power supply, improve the stability of EPS emergency power supply, solve the problem that traditional E PS emergency power supply failure probability is large, maintenance is inconvenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of modular construction EPS emergency power supply, comprise battery pack, charging system, inversion system, change-over switch module, feeder line detection module, battery inspection module and supervising device; Described battery pack comprises n and saves monocell, and charging system comprises n charging module, and inversion system comprises n inversion module; Exchange the input that input is linked into n charging module simultaneously, the output of each charging module is connected to the input of a batteries charging, the output often saving monocell is connected to the input of an inversion module, the output of n inversion module is linked into the input of change-over switch module simultaneously, and the output of change-over switch module connects load; Be connected on the monocell on a circuit, charging module and inversion module and form an EPS unit.
Charging system manages automatically to battery pack and automatically maintenance, the terminal voltage of Real-Time Monitoring battery pack and charging current, automatically carries out all the filling of battery pack, floating charge and periodic maintenance and all fills control.In the work process of charging system, if wherein certain charging module breaks down, then this charging module broken down logs off automatically, and all the other charging modules normally work; Meanwhile, each charging module reports charge data and fault message by RS485 communication bus to supervising device.
In the work process of inversion system, if wherein certain inversion module breaks down, then this inversion module broken down logs off automatically, and all the other inversion modules normally work; Meanwhile, each inversion module reports operating state and service data by RS485 communication bus to supervising device.
Adopt high frequency between inside modules and module, modular hot-plug construction connects, for subsequent use each other and on-line maintenance between inside modules and module can be realized; When certain module breaks down, maintenance personal, in non-stop-machine situation, only simply need pull up malfunctioning module and change normal module and can complete maintenance work.
Described battery inspection module in charge carries out the on-line real time monitoring of relevant parameter to battery pack, the residual capacity etc. of the discharging current of the voltage of main monitoring battery pack, the charging current of battery pack, battery pack, battery pack temperature, the voltage of single battery, the internal resistance of single battery and single battery; Battery inspection inside modules is provided with battery failure and analyzes Mathematical Modeling, can carry out each analysis of single battery performance change trend and the diagnosis of performance, go out the running status of every batteries with accurate analysis.Staff is by comprehensively monitoring energy Timeliness coverage fail battery, and maintenance personal can change fail battery in time, ensure that the whole Battery pack of EPS emergency power supply normally runs.
Described feeder line detection module patrols and examines the line voltage of feeder line, the inverter voltage of battery pack and load current in real time, when a certain feed out loop there is short circuit time, what can detect short circuit in time by feeder line detection module feeds out loop, staff feeds out the EPS emergency power supply of loop fault by comprehensively monitoring energy Timeliness coverage, maintenance is done personnel and the very first time is found fault loop at the scene, removes potential potential safety hazard.Meanwhile, the fault-signal of feeder line is sent to change-over switch module as the control signal of change-over switch module by feeder line detection module: when mains-supplied breaks down, be switched to battery-powered by change-over switch module; When mains-supplied is recovered normal, switch back mains-supplied by change-over switch module; When load surcharge or short circuit, cut off load by change-over switch module and send knocking noise visual alarm simultaneously.
Change-over switch module adopts the static two-way switch of STS to realize, and change-over switch module realizes the rapid translating between civil power and inversion electricity, and general change-over time is less than 5ms: when civil power is normal, and load is switched to civil power side and powers; When municipal power failure, load is switched to the power supply of inversion electricity by change over switch; When load short circuits or overload 150%, turn off output immediately, the concurrent sound and light alarm signal that is out of order, uploads to comprehensively monitoring by supervising device by failure alarm signal simultaneously, and staff's Timeliness coverage is for load status.
Described supervising device carries out transfer of data with charging system, inversion system, change-over switch module, feeder line detection module and battery inspection module respectively by RS485 communication bus, monitored results is presented on monitoring screen by supervising device, and supervising device leads to ICP/IP protocol and monitor data is uploaded to Surveillance center.
The EPS emergency power supply of this case, adopt modular design, there is following advantage: 1, parallel operation standby redundancy can be realized easily, there is high reliability, simultaneously also facilitate dilatation 2, realize load sharing: the intermodule autonomous equalizing current of modularization EPS, load by each module mean allocation, such as: an EPS power-supply system be made up of two modules, in this system, each module is only responsible for the load of 1/2, is of great benefit to raising system reliability; 3, load capacity is strong: the load capacity of track traffic modularized emergency power-supply system is the superposition of modular power, and in actual motion, because modularization EPS is parallel running, the power that can bear is the sum that the power output of EPS module takes advantage of module; Such as: a certain station needs the capacity of EPS to be 5KVA, modularization EPS is the wired in parallel of employing 2 5KVA, and system band loading capability is 10KVA; 4, without Single Point of Faliure: track traffic modularization EPS is without Single Point of Faliure, and the completely autonomous parallel operation of the inverter module in system, each module is a complete EPS, without any common unit, without Single Point of Faliure.
The modularized emergency power-supply system of this case is the emergency power system of a conventional individual emergency power system upgrade version, it solves the Railway Project that user is concerned about most: the first, storage battery is regularly safeguarded automatically, effective increasing storage battery service life; The second, all module emergency power systems is all modularization N+1 design from charging module to inverter, and whole piece subway circulation is safeguarded and convenient, and whole piece subway line is just passable for several modules; Three, the whole conversion efficiency of modularized emergency power-supply system is very high, reaches 96%, and whole system thermal losses is very little, can be described as the power-supply system of an environmental protection.Satisfied along with large-scale application and individual demand, modularization EPS is extensive use in the projects such as track traffic, is just becoming a kind of first-selected emergency power supply product replacing traditional E PS.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a modular construction EPS emergency power supply, is characterized in that: comprise battery pack, charging system, inversion system, change-over switch module, feeder line detection module, battery inspection module and supervising device;
Described battery pack comprises n and saves monocell, and charging system comprises n charging module, and inversion system comprises n inversion module; Exchange the input that input is linked into n charging module simultaneously, the output of each charging module is connected to the input of a batteries charging, the output often saving monocell is connected to the input of an inversion module, the output of n inversion module is linked into the input of change-over switch module simultaneously, and the output of change-over switch module connects load; Be connected on the monocell on a circuit, charging module and inversion module and form an EPS unit;
Described feeder line detection module patrols and examines the inverter voltage of feeder line output state and battery pack in real time, and the fault-signal of feeder line is sent to change-over switch module as the control signal of change-over switch module by feeder line detection module;
Described battery inspection module saves to n the detection that monocell carries out internal resistance, voltage and capacity respectively, and the threshold range according to internal resistance, voltage and capacity judges whether monocell breaks down;
Described supervising device carries out transfer of data with charging system, inversion system, change-over switch module, feeder line detection module and battery inspection module respectively by communication bus.
2. modular construction EPS emergency power supply according to claim 1, it is characterized in that: described supervising device carries out transfer of data with charging system, inversion system, change-over switch module, feeder line detection module and battery inspection module respectively by RS485 communication bus, monitored results is presented on monitoring screen by supervising device, and supervising device leads to ICP/IP protocol and monitor data is uploaded to Surveillance center.
3. modular construction EPS emergency power supply according to claim 1, it is characterized in that: described feeder line detection module patrols and examines the line voltage of feeder line, the inverter voltage of battery pack and load current in real time: when mains-supplied breaks down, and is switched to battery-powered by change-over switch module; When mains-supplied is recovered normal, switch back mains-supplied by change-over switch module; When load surcharge or short circuit, cut off load by change-over switch module and send knocking noise visual alarm simultaneously.
4. modular construction EPS emergency power supply according to claim 1, is characterized in that: described change-over switch module adopts the static two-way switch of STS to realize.
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| CN201510766028.0A CN105244998A (en) | 2015-11-10 | 2015-11-10 | Emergency power supply (EPS) having modular structure |
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Cited By (3)
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| CN105656186A (en) * | 2016-02-29 | 2016-06-08 | 江苏美伦影像系统有限公司 | High-power oral CT power system |
| CN106712233A (en) * | 2017-02-20 | 2017-05-24 | 广东南方电信规划咨询设计院有限公司 | Small low-noise mobile power generation system for wireless base station |
| CN107733075A (en) * | 2017-11-14 | 2018-02-23 | 深圳市米阳科技有限公司 | A kind of electric power system for preventing power-supply fluctuation from impacting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20160113 |
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