CN106026207A - Power supply system - Google Patents
Power supply system Download PDFInfo
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- CN106026207A CN106026207A CN201610544406.5A CN201610544406A CN106026207A CN 106026207 A CN106026207 A CN 106026207A CN 201610544406 A CN201610544406 A CN 201610544406A CN 106026207 A CN106026207 A CN 106026207A
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- module
- power system
- electric power
- current
- redundancy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention relates to the technical field of power supply, and particularly relates to a power supply system. A redundant current sharing module is used to balance current outputted by all AC/DC modules to provide rated power to a load. When some AC / DC modules cannot work normally, the redundant current sharing module can re-balance power output by the remaining AC/DC modules in time to ensure that output power can meet the load demand to improve the stability of the whole power supply system.
Description
Technical field
The present invention relates to power supply technique field, particularly relate to a kind of electric power system.
Background technology
Currently, along with popularizing of electrical equipment, the stability of electric power system is increasingly paid close attention to by people, and due to the impact of factors so that the stability that current electric power system is powered greatly differs from each other with the expectation of people；Especially in the place needing uninterrupted power supply, the power supply stability requirement for electric power system is higher, and then makes the problem how promoting confession electrical stability be referred to as current industry urgent need to solve the problem.
Summary of the invention
In view of the above problems, the present invention provides a kind of electric power system.
The present invention solves the technical scheme that technical problem used:
A kind of electric power system, including:
Alternating Current Power Supply module and redundancy current-sharing module；
At least two AC/DC module, is parallel in described Alternating Current Power Supply module；
DC load, is electrically connected with each AC/DC module in described at least two AC/DC module respectively by described redundancy current-sharing module；
Wherein, the electric current output of the described AC/DC module of work normal in described at least two AC/DC module is equalized by described redundancy current-sharing module, the electric energy needed for providing to described load.
Preferably, above-mentioned electric power system, also include:
Circuit protection module, described load is electrically connected with described redundancy current-sharing module by described circuit protection module, to protect when occurring stream and/or open circuit and/or short circuit in described electric power system.
Preferably, above-mentioned electric power system, described load includes that multiple load device, described electric power system also include:
Multiple constant flow modules, each described load device is all electrically connected with described circuit protection module by constant flow module described in.
Preferably, above-mentioned electric power system, also include:
Energy-storage module, is connected with described redundancy current-sharing module and described circuit protection module respectively；
Wherein, described energy-storage module is stored by described redundancy current-sharing module or release electric energy.
Preferably, above-mentioned electric power system, described energy-storage module includes:
Control unit and accumulator battery, described accumulator battery is electrically connected with described redundancy current-sharing module and described protection module respectively by control unit.
Preferably, above-mentioned electric power system, also include:
Monitoring module, respectively with described Alternating Current Power Supply module, described redundancy current-sharing module, described
At least two AC/DC module, described circuit protection module and described energy-storage module connect, to send alarm signal when described electric power system breaks down.
Preferably, above-mentioned electric power system, described monitoring module includes:
Monitoring/alarm unit, is connected with described Alternating Current Power Supply module, described redundancy current-sharing module, described at least two AC/DC module, circuit protection module respectively, to obtain the fault-signal occurred in described electric power system；
Main Processor Unit, is connected with described monitoring/alarm unit, described energy-storage module and described protection module respectively, exports control information after processing described fault-signal；
Display/input module, is connected with described Main Processor Unit, to show the operation conditions of described electric power system, and performs instruction to the input of described Main Processor Unit.
Preferably, above-mentioned electric power system, described at least two AC/DC module is arranged in hot plug mode, and remaining AC/DC module is again equalized by described redundancy current-sharing module when part described AC/DC module breaks down, and meets the electric energy needed for described load with output.
Preferably, above-mentioned electric power system, described Alternating Current Power Supply module uses three-phase and four-line or single-phase-two-wire to described at least two AC/DC module for power supply.
Preferably, above-mentioned electric power system, the mains electricity of described Alternating Current Power Supply module input 100 ~ 240V, the unidirectional current of described circuit protection module output 12 ~ 48V.
Technique scheme has the advantage that or beneficial effect:
The electric current that all of AC/DC module is exported by the electric power system in the present invention by utilizing redundancy current-sharing module equalizes, to provide rated power to load；Simultaneously, this redundancy current-sharing module can also be when part AC/DC module cannot normally work, the electric energy exported remaining AC/DC module timely equalizes again, and then guarantees that the electric energy of output all can meet the demand of load, and then improves the stability of whole electric power system.
Accompanying drawing explanation
With reference to appended accompanying drawing, more fully to describe embodiments of the invention.But, appended accompanying drawing is merely to illustrate and illustrates, is not intended that limitation of the scope of the invention.
Fig. 1 is the modular structure schematic diagram of a kind of electric power system in the embodiment of the present invention；
Fig. 2 is to use Main Processor Unit or control unit to control redundancy current-sharing module in the embodiment of the present invention to carry out the schematic diagram of equal flow operation.
Detailed description of the invention
The present invention provides a kind of electric power system, can be applicable to construction site temporary lighting, the illumination of brill/mine platform, portable lighter and need safe voltage illumination etc. and other various application places needing safe dc voltage to power, this electric power system realizes Modular intelligent safety low-pressure DC lighting by electrically connecting redundancy current-sharing module after multiple AC/DC modules, below in conjunction with the accompanying drawings present disclosure is illustrated, but it should be noted that, this embodiment is only used for explaining the summary of the invention of the present invention, but should not be construed as limitation ot it.
As it is shown in figure 1, a kind of electric power system in the present embodiment, it may include:
Alternating Current Power Supply module, can be 100 ~ 240V(such as 110V or 220V etc.) utility grid interface, use such as three-phase and four-line input or the mode such as single-phase-two-wire input to provide alternating current to this electric power system.Such as, when powering to such as 50A and above high power load thereof, three-phase and four-line mode can be used to provide alternating current, be beneficial to three-phase power balance；And when to the load supplying of small-power (such as less than 50A), then single-phase-two-wire input mode can be used to provide above-mentioned alternating current；Certainly, accessing the place of inconvenience in three-phase and four-line mode, the most high-power or small-power is powered and single-phase-two-wire all can be used to power.
At least two AC/DC module, is parallel to above-mentioned Alternating Current Power Supply module；During owing to using single AC/DC module to carry out AC-DC conversion, once this AC/DC module breaks down, the most whole electric power system just cannot normal power supply, therefore in order to promote the stability that this electric power system is powered, the at least two AC/DC module in parallel in above-mentioned utility grid access interface electrical connection (is to be illustrated with three AC/DC modules in the present embodiment, but it should not be construed as limitation of the present invention), so when one of them is even more than when breaking down, as long as remaining an AC/DC module can normally work, all can ensure that this electric power system can normal power supply, and then the stability of electric power system can be greatly promoted.Meanwhile, the alternating current that utility grid access interface inputs all can be converted to the unidirectional current that corresponding electrical parameter requires by above-mentioned each AC/DC, and then is easy to provide electric energy to DC load.
Redundancy current-sharing module, electrically connect with the DC output end of each AC/DC module in above-mentioned at least two AC/DC module and (this DC output end figure does not indicates, according to circuital current trend shown in this Fig, being clear that, the ac input end of above-mentioned each AC/DC module all electrically connects with utility grid incoming end)；This redundancy current-sharing module can be exported by the electric current of each AC/DC module that equilibrium is connected electrically, and then balances its load capacity；The electric current that galvanic all AC/DC modules are exported that can normally export being connected electrically is equalized by this redundancy current-sharing module i.e., and galvanic current after DC load output equilibrium；So, even if the AC/DC module being connected with this redundancy current-sharing module has one even more than when breaking down, the unidirectional current that the AC/DC module of remaining normal work also can be exported by redundancy current-sharing module timely equalizes again, and then guarantees that DC load is operated in relatively stable circuit.
Preferably, in above-mentioned at least two AC/DC module, each AC/DC module all can use hot plug mode to electrically connect with Alternating Current Power Supply module and redundancy current-sharing module respectively, so break down even more than AC/DC module once certain, do not affecting on the premise of electric power system normally works, just the AC/DC module broken down can be replaced operation, and then can further promote the stability of electric power system.
Further, above-mentioned electric power system may also include circuit protection module, and DC load is electrically connected with redundancy current-sharing module by this circuit protection module；This circuit protection module in the range of providing such as human safety voltage to DC load (such as 12 ~ 48V; such as 12V, 24V, 36V, 48V etc. and according to applied environment, corresponding safe voltage is set) galvanic while; also can provide protection to what electric power system occurred when such as crossing the faults such as stream, open circuit and/or short circuit, and then guarantee that whole electric power system can efficiently, reliably and stably be run.
Further; above-mentioned electric power system may also include several constant flow modules; DC load then can include multiple DC load device, and each DC load device (such as including the illuminating lamp etc. of LED group) is all by a constant flow module and above-mentioned circuit protection module；So, constant flow module provides stable electric current to the DC load device that is connected electrically, to promote the stability of electric power system, and then guarantees that DC load device is operated in specified power bracket, on the premise of guaranteeing that it normally works, moreover it is possible to be greatly promoted the service life of direct current device.
Preferably, DC load (such as the LED illumination lamp) integrated molding that above-mentioned constant flow module can be connected electrically；It addition, can also be for DC load to arrange waterproof and/or dust-proof and/or anticorrosion and/or fire prevention and/or the structure such as explosion-proof, so that it is applicable to various different application places.
Further, above-mentioned electric power system may also include the accumulator battery (circuit protection module is for protecting the circuit structure in control unit) electrically connected respectively by control unit with above-mentioned redundancy current-sharing module and circuit protection module, this accumulator battery may be configured as external device, the accumulator battery of respective volume can be accessed according to different demands, with when above-mentioned Alternating Current Power Supply module power-down and/or AC/DC module all cannot normally work, emergency power is provided by control unit and circuit protection module to DC load by accumulator battery, and then promote the stability of electric power system further；Additionally, when Alternating Current Power Supply normally works in electric power system, it is also with redundancy current-sharing module and control unit and is charged to above-mentioned accumulator battery, to guarantee that accumulator battery is reserved with the electric energy of abundance, tackle the outage condition of burst, and then promote the stability of electric power system.
Further, above-mentioned redundancy current-sharing module can include redundancy flow equalizing circuit, current-sharing is carried out for AC/DC intermodule, if as it is shown in figure 1, use three AC/DC modules in parallel and that electrically specifications parameter is the most identical to power to the load, and the rated voltage of this load is 36V, when rated current is 60A, when three AC/DC modules the most normally work, above-mentioned redundancy flow equalizing circuit controls the output voltage of each AC/DC module and is 36V, exports electric current and is then 20A；And if one of them AC/DC module break down can not normal power supply time, then disconnect the branch road of this AC/DC module, and again the output of remaining two AC/DC modules in parallel is equalized, and make the output voltage of each AC/DC module be 36V after equalization, export electric current then for 30A.
Preferably, above-mentioned redundancy flow equalizing circuit can be logic circuit structure, as used the components and parts such as MOSFET or IGBT to build the ideal diode "or" logic control circuit etc. of composition；nullCertainly，Above-mentioned redundancy current-sharing module uses above-mentioned redundancy flow equalizing circuit to be automatically obtained the current-sharing of AC/DC module，May be used without utilizing the microprocessor in Main Processor Unit or control unit (to it should be noted that as shown in Figure 2，Typically can be according to practical situation and need to select any of the above-described type or different types of combination to build redundancy flow equalizing circuit when reality is applied，Main Processor Unit such as can be first selected to build above-mentioned redundancy flow equalizing circuit，And also optional when Main Processor Unit inadequate resource call control unit resource etc. and complete the structure of above-mentioned redundancy flow equalizing circuit) etc. means by the way of controlling redundancy current-sharing module, realize the equal flow operation to above-mentioned AC/DC module，As long as i.e. can ensure that when any one or more AC/DC modules break down，Remaining AC/DC module can provide constant electric energy to load timely.
Preferably, in order to further promote the stability of system, each AC/DC module in the AC/DC module included by this system all individually can provide the electric energy of specified energy to load；It is 36V as worked as the rated voltage of load, when rated current is 10A, the voltage that the most each AC/DC module can be provided by also be intended to reach 36V and more than, and the electric current 10A to be reached exported and more than, as long as so there being an AC/DC module normally to work, ensuring that can be to loading the electrical power providing full-amount.
Preferably, above-mentioned control unit includes charging circuit, discharge circuit and DC/DC change-over circuit etc., disconnected (stopping) electricity situation occurs once AC-powered, provides emergency power to DC load；Additionally, in order to ensure providing, for application places, the illumination needs that personnel withdraw and associated safety processes, above-mentioned control unit and accumulator battery can be directly utilized and also or be independently arranged an emergency lighting system circuit at existing illuminator circuit, it is possible to independent energy storage emergency lighting each emergency lighting point (will the energy storage in this system meet an urgent need module and accumulator battery (increase power failure detection circuit) constitutes independent emergency lighting and is arranged on different emergency lighting points) needed in system is set.
nullFurther，Above-mentioned electric power system may also include monitoring/alarm unit、Main Processor Unit and display/input module etc.，Above-mentioned detection/alarm unit is connected between each device on circuit (as on the circuit that Alternating Current Power Supply module is connected with each AC/DC module、On the circuit that each AC/DC module is connected with redundancy current-sharing module、On the circuit that redundancy current-sharing module is connected with control unit、On the circuit that redundancy current-sharing module is connected with circuit protection module、On the circuit that circuit protection module is connected with load、The circuit that circuit protection module is connected with control unit is first-class)，It is main by the voltage of several control points and/or electric current are monitored、Control、Warning and protection etc.，And then realize electric power system is carried out overvoltage protection and/or under-voltage protection and/or overcurrent protection and/or undercurrent protection and/or power-off protection，And fault alarm etc..
Preferably, above-mentioned Main Processor Unit is then responsible for the monitoring signal processing that above-mentioned monitoring/alarm unit obtains, and according to the data output control information after processing respectively to above-mentioned AC/DC module, redundancy current-sharing module, control unit and circuit protection module etc.；Show/input module can be then that touch screen may also comprise display screen and input keyboard etc., with while the operation conditions and parameter of display electric power system, content can be set to Main Processor Unit input pattern, perform instruction etc., to control the operation of modules.
In sum, a kind of electric power system in the present embodiment, there is compared to current ac power supply system the features such as more efficient, energy-saving and environmental protection, and also stablize electromagnetic-radiation-free, disturb without AC harmonic；Meanwhile, in particular for 36V low-voltage alternating-current lighting power supply system, compared to the current AC transformer conversion efficiency less than 85%, the electric power system in the present embodiment can make AC-DC conversion improved efficiency to more than 95%；Additionally, electric power system in the present embodiment be utilize AC/DC module (this AC/DC module all can use high conversion efficiency and high power factor correction Technology design) that the alternating current that Alternating Current Power Supply module provides is converted to unidirectional current after, powered by direct current can be directly provided to load after redundancy current-sharing module, relative to traditional AC-to-DC electric power system, being worth to of power factor PF is substantially improved, the i.e. conversion efficiency of its electric energy is greatly promoted, and then can further reduce the waste of the energy.
It should be noted that in the application, all of module and/unit all can be realized by hardware devices such as corresponding circuit structures.
For a person skilled in the art, after reading described above, various changes and modifications will be apparent to undoubtedly.Therefore, appending claims should regard whole variations and modifications of true intention and the scope containing the present invention as.In Claims scope, the scope of any and all equivalence and content, be all considered as still belonging to the intent and scope of the invention.
Claims (10)
1. an electric power system, it is characterised in that including:
Alternating Current Power Supply module and redundancy current-sharing module；
At least two AC/DC module, is parallel in described Alternating Current Power Supply module；
DC load, is electrically connected with each AC/DC module in described at least two AC/DC module respectively by described redundancy current-sharing module；
Wherein, the electric current output of the described AC/DC module of work normal in described at least two AC/DC module is equalized by described redundancy current-sharing module, the electric energy needed for providing to described load.
2. electric power system as claimed in claim 1, it is characterised in that also include:
Circuit protection module, described load is electrically connected with described redundancy current-sharing module by described circuit protection module, to protect when occurring stream and/or undercurrent and/or open circuit and/or short circuit in described electric power system.
3. electric power system as claimed in claim 2, it is characterised in that described load includes that multiple load device, described electric power system also include:
Multiple constant flow modules, each described load device is all electrically connected with described circuit protection module by constant flow module described in.
4. electric power system as claimed in claim 2, it is characterised in that also include:
Energy-storage module, is connected with described redundancy current-sharing module and described circuit protection module respectively；
Wherein, described energy-storage module is stored by described redundancy current-sharing module or release electric energy.
5. electric power system as claimed in claim 4, it is characterised in that described energy-storage module includes:
Control unit and accumulator battery, described accumulator battery is electrically connected with described redundancy current-sharing module and described protection module respectively by control unit.
6. electric power system as claimed in claim 4, it is characterised in that also include:
Monitoring module, respectively with described Alternating Current Power Supply module, described redundancy current-sharing module, described
At least two AC/DC module, described circuit protection module and described energy-storage module connect, to send alarm signal when described electric power system breaks down.
7. electric power system as claimed in claim 6, it is characterised in that described monitoring module includes:
Monitoring/alarm unit, is connected with described Alternating Current Power Supply module, described redundancy current-sharing module, described at least two AC/DC module, described circuit protection module respectively, to obtain the fault-signal occurred in described electric power system；
Main Processor Unit, is connected with described monitoring/alarm unit, described energy-storage module and described protection module respectively, exports control information after processing described fault-signal；
Display/input module, is connected with described Main Processor Unit, to show the operation conditions of described electric power system, and performs instruction to the input of described Main Processor Unit.
8. electric power system as claimed in claim 1, it is characterized in that, described at least two AC/DC module is arranged in hot plug mode, remaining AC/DC module is again equalized by described redundancy current-sharing module when part described AC/DC module breaks down, and meets the electric energy needed for described load with output.
9. electric power system as claimed in claim 1, it is characterised in that described Alternating Current Power Supply module uses three-phase and four-line or single-phase-two-wire to described at least two AC/DC module for power supply.
10. electric power system as claimed in claim 2, it is characterised in that the mains electricity of described Alternating Current Power Supply module input 100 ~ 240V, the unidirectional current of described circuit protection module output 12 ~ 48V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544406.5A CN106026207A (en) | 2016-07-12 | 2016-07-12 | Power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544406.5A CN106026207A (en) | 2016-07-12 | 2016-07-12 | Power supply system |
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| CN106026207A true CN106026207A (en) | 2016-10-12 |
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| CN201610544406.5A Pending CN106026207A (en) | 2016-07-12 | 2016-07-12 | Power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108564918A (en) * | 2018-04-23 | 2018-09-21 | 湖北集润科技有限公司 | A kind of high-voltage transmission concentration-distribution type LED display screen power-supply system |
| CN110165722A (en) * | 2018-05-08 | 2019-08-23 | 北京机电工程研究所 | Car launcher energy management system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340040A (en) * | 2011-10-27 | 2012-02-01 | 山东圣阳电源股份有限公司 | High-power modular lead-acid battery formation charging/discharging system |
| JP2013258845A (en) * | 2012-06-13 | 2013-12-26 | Toshiba Corp | Power supply system |
| CN203504273U (en) * | 2013-08-21 | 2014-03-26 | 陈建新 | Led lamp |
-
2016
- 2016-07-12 CN CN201610544406.5A patent/CN106026207A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340040A (en) * | 2011-10-27 | 2012-02-01 | 山东圣阳电源股份有限公司 | High-power modular lead-acid battery formation charging/discharging system |
| JP2013258845A (en) * | 2012-06-13 | 2013-12-26 | Toshiba Corp | Power supply system |
| CN203504273U (en) * | 2013-08-21 | 2014-03-26 | 陈建新 | Led lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108564918A (en) * | 2018-04-23 | 2018-09-21 | 湖北集润科技有限公司 | A kind of high-voltage transmission concentration-distribution type LED display screen power-supply system |
| CN110165722A (en) * | 2018-05-08 | 2019-08-23 | 北京机电工程研究所 | Car launcher energy management system |
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