CN103647342B - A kind of novel free of discontinuities method of supplying power to and power-supply system - Google Patents
A kind of novel free of discontinuities method of supplying power to and power-supply system Download PDFInfo
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Abstract
The invention discloses a kind of novel free of discontinuities method of supplying power to and power-supply system, mainly comprise a super capacitor storage unit, a compressed-air power unit and Inspect and control unit.When civil power normal power supply, power storage is in super capacitor and compressed-air power unit.When power breakdown, super capacitor reacts rapidly, for power consumption equipment is powered, and starts compressed-air power unit, realizes powering for a long time.When city power recovery is normal, utilize grid power to realize thermal energy storage process, meanwhile, supplemented the compressed air in air accumulator by compressor.Free of discontinuities power-supply system of the present invention adopts super capacitor and compressed-air power unit, has features such as being swift in response, low-carbon environment-friendly, long service life, maintenance cost are low, adaptable.
Description
Technical field
The present invention relates to a kind of free of discontinuities method of supplying power to and power-supply system, particularly the free of discontinuities method of supplying power to of a kind of civil power that is coupled, super capacitor and compressed-air power unit and power-supply system.
Background technology
Free of discontinuities power supply (Uninterruptible Power Supply, UPS) be a kind of power-supply device comprising the parts such as rectification, energy storage, inversion and switch, as in emergency power supply or stand-by power supply access electrical network or local power net, when mains supply system break, the electric energy that the release of this equipment stores realizes continued power, maintains the normal operation of power consumption equipment.Free of discontinuities power supply has a wide range of applications in fields such as industry, business and houses, mainly comprises communication, information technology, computer data center, Industry Control, medical treatment, the energy and various architectural power supply systems etc.
Free of discontinuities power supply mainly comprises two parts: main frame and power storage equipment.Main frame comprises rectification, inversion, switch and other induction and control module.Power storage equipment is divided into Static and dynamic storage facilities.Static storage device is a kind of power storage scheme of current extensive use, and its main body is chemical storage batteries; It is the free of discontinuities power source design maintaining (as flywheel, internal combustion engine, gas turbine etc.) by kinetic energy that dynamic storage device confession under directions electricity exports.Storage battery have shorter, charging interval in useful life long, require not exclusively to discharge, maintenance period is short, to shortcomings such as requirement for environmental conditions are high, the more important thing is, the production process of storage battery and the processing procedure of old and useless battery all produce with pollution.Flywheel energy storage can realize fast reaction, and efficiency is higher, but need with internal combustion engine with the use of.Internal combustion engine consumption of fossil fuels, its emission will produce pollution to environment.
Super capacitor is the high energy storage element of a kind of advanced person, have be swift in response, capacity is large, volume is little, the life-span is long, connection in series-parallel combined and instant etc.The present invention proposes a kind of compressed-air power unit of the super capacitor that is coupled, it has pollution-free, that energy density is high feature, can generate electricity relatively for a long time, and be coupled with super capacitor, there is the features such as reaction speed is fast, thus form a kind of novel free of discontinuities method of supplying power to and power-supply system.
Summary of the invention
In order to solve the shortcoming and defect of above-mentioned prior art, the present invention aims to provide a kind of novel free of discontinuities method of supplying power to and power-supply system, and this free of discontinuities method of supplying power to and power-supply system have the advantages such as power density is high, the charging interval is short, be swift in response, low-carbon environment-friendly, long service life, maintenance cost are low, adaptable.
For achieving the above object, technical solution of the present invention is: a kind of novel free of discontinuities method of supplying power to, the mode of supercapacitive cell coupling compressed-air power unit is used to coordinate the external output power of civil power, it is characterized in that, use the operating state of the in running order all the time monitoring of Inspect and control unit dynamic realtime civil power, supercapacitive cell and compressed-air power unit, wherein
When monitoring civil power and being in the operating state of normal power supply, Inspect and control unit controls only makes civil power power to power consumption equipment, closes described compressed-air power unit simultaneously, wherein,
--judge whether to need to power to described supercapacitive cell according to the charge condition of the supercapacitive cell monitored, when the electricity of described supercapacitive cell is less than preset value, then make civil power power to supercapacitive cell simultaneously, if when the electricity of described supercapacitive cell is not less than described preset value, then disconnect the power supply to supercapacitive cell;
--judge whether to need to power to described compressed-air power unit according to the compressed air pressure information of the compressed air reservoir in the compressed-air power unit monitored and the temperature information of regenerative heat exchange unit, when the compressed air pressure information of described compressed air reservoir is less than predeterminated level, civil power is then made to be that the air compressor unit of described compressed-air power unit is powered, opening compressor bank is compressed air reservoir inflation, and/or when the temperature information of described regenerative heat exchange unit is less than predetermined value, then make civil power power to described regenerative heat exchange unit simultaneously, to heat the heat-storing material in described regenerative heat exchange unit, if when the compressed air pressure information of described compressed air reservoir is not less than predeterminated level, and/or the temperature information of described regenerative heat exchange unit is when being not less than described predetermined value, then disconnect the power supply to air compressor unit and/or regenerative heat exchange unit,
When monitoring civil power and being in the operating state of power-off, disconnect the connecting valve between civil power and power consumption equipment, start described supercapacitive cell and compressed-air power unit, the electric power part that described supercapacitive cell exports is powered for power consumption equipment, another part provides startup electric power for the expansion unit in described compressed-air power unit, after described compressed-air power unit starting, described supercapacitive cell stops powering to expansion unit, by the external output power of expansion unit drive motor unit in described compressed-air power unit.
Further, described compressed-air power unit comprises motor, compressor bank, compressed air reservoir, air cooler, regenerative heat exchange unit, expansion unit, generator, described motor is under super capacitor drives, drive described compressor bank to operate, described compressed air reservoir will be delivered to after air compressing; Pipeline between described compressed air reservoir and air cooler is provided with by-pass valve control, after by-pass valve control is opened, pressure-air in compressed air reservoir enters after regenerative heat exchange unit absorbs heat further and changes HTHP air into after air cooler absorbing environmental heat, described HTHP air push expansion unit acting, described expansion unit drives described generator.
Further, described expansion unit comprises high pressure expansion machine and low-pressure expansion machine, first the described HTHP air of discharging from described regenerative heat exchange unit enters high pressure expansion machine and promotes its acting, the pressure-air of discharging from high pressure expansion machine passes into described regenerative heat exchange unit absorption heat again, then drives low-pressure expansion machine acting.
Further, described compressor bank comprises aerial cooler after inter-stage and level.
According to a further aspect in the invention, provide a kind of novel free of discontinuities power-supply system, comprise supercapacitive cell, compressed-air power unit and Inspect and control unit, it is characterized in that, described Inspect and control unit is by control circuit and supercapacitive cell, compressed-air power unit connects, use Inspect and control unit dynamic realtime monitoring civil power in running order all the time, the operating state of supercapacitive cell and compressed-air power unit, when monitoring civil power and being in the operating state of normal power supply, Inspect and control unit controls only makes civil power power to power consumption equipment, close described compressed-air power unit simultaneously, and civil power is charged to supercapacitive cell, when monitoring civil power and being in the operating state of power-off, disconnect the connecting valve between civil power and power consumption equipment, start described supercapacitive cell and compressed-air power unit, the electric power part that described supercapacitive cell exports is powered for power consumption equipment, and another part provides startup power for the expansion unit in described compressed-air power unit.
Preferably, described supercapacitive cell mainly comprises super capacitor and power electronics unit.
Further, described compressed-air power unit comprises motor, compressor bank, compressed air reservoir, air cooler, regenerative heat exchange unit, expansion unit, generator, described motor is under super capacitor drives, drive described compressor bank to operate, described compressed air reservoir will be delivered to after air compressing; Pipeline between described compressed air reservoir and air cooler is provided with by-pass valve control, after by-pass valve control is opened, pressure-air in compressed air reservoir enters after regenerative heat exchange unit absorbs heat further and changes HTHP air into after air cooler absorbing environmental heat, described HTHP air push expansion unit acting, described expansion unit drives described generator.
Further, described expansion unit comprises high pressure expansion machine and low-pressure expansion machine, first the described HTHP air of discharging from described regenerative heat exchange unit enters high pressure expansion machine and promotes its acting, the pressure-air of discharging from high pressure expansion machine passes into described regenerative heat exchange unit absorption heat again, then drives low-pressure expansion machine acting.
Further, described compressor bank comprises aerial cooler after inter-stage and level.
Inspect and control unit mainly due to the state of all parts in this free of discontinuities power-supply system of monitoring and parameter thereof, and is implemented to control as required.
Novel free of discontinuities method of supplying power to of the present invention and power-supply system, its operation principle is: Inspect and control unit all the time in working order, the operating mode of monitoring system all parts and relevant parameter, when civil power normal power supply: (1) power load consumption is from the power supply of civil power; (2) civil power is that the supercapacitive cell of free of discontinuities power-supply system is powered, and stores certain electricity; (3) civil power is the power supply of compressed-air power unit, produces high pressure air and stores with air accumulator, and power for accumulation of heat/heat exchange unit, produce heat energy and store by compressor.When commercial power interruption, free of discontinuities power-supply system starts rapidly, for power consumption equipment is powered, be specially: (1) first supercapacitive cell fast reaction, export electric energy, on the one hand for power load provides unremitting supply of electric power, the motor that it is compressed-air power unit on the other hand provides startup electric power, starts compressed-air power unit; (2) compressed-air power unit starting, in air accumulator, compressed air absorbs heat by pressure-reducing valve, air cooler and heat transmission equipment, enters decompressor acting, exports the electric energy continued.When city power recovery is normal, compressed-air power unit stops generating, and civil power provides electric power for super capacitor and thermal storage unit, and is air accumulator inflation by compressor, completes energy storage.
Novel free of discontinuities method of supplying power to of the present invention and power-supply system, Inspect and control unit monitors the working condition of unit in real time.When civil power normally works, power consumption equipment consumes civil power electric power; Civil power is super capacitor charging by power electronic equipment, a part of electric power is connected with the regenerative heat exchange unit in compressed-air power unit by power electronic equipment in addition, be stored in heat-storing material with the form of heat energy, and drive compressor to produce compressed air and store with air accumulator.
Novel free of discontinuities method of supplying power to of the present invention and power-supply system, when commercial power interruption, super capacitor reacts rapidly, on the one hand, be that power consumption equipment is powered by power electronic equipment, the some electrical power of super capacitor drives the electric motor units in compressed-air power unit on the other hand, starts compressed-air power unit, realize continuing, powering for a long time, now civil power side switch is in off-state.
Novel free of discontinuities method of supplying power to of the present invention and power-supply system, when commercial power interruption, compressed-air power unit starting, pressure-air in air accumulator is by pressure-reducing valve step-down and air cooler absorbing environmental heat, heat in this part absorption of air regenerative heat exchange unit, enter high pressure expansion machine, drive decompressor acting; This part gas continues to enter regenerative heat exchanger and absorbs heat, then drives low-pressure expansion machine acting; The shaft work exported drives dynamoelectric machine output power, and this part electric power is that power consumption equipment is powered by power electronic equipment.
Novel free of discontinuities method of supplying power to of the present invention and power-supply system, the heat-storing material of regenerative heat exchange unit can be sensible heat heat-storing material or latent heat storage material.
Novel free of discontinuities method of supplying power to of the present invention and power-supply system, the decompressor in compressed-air power unit and compressor can be vane type, also can be piston type.The progression of decompressor is more than one-level or one-level, and the progression of compressor is more than two-stage level or two-stage level, and has inter-stage and level aftercooler.
The present invention has following beneficial effect:
Main energy storage of the present invention and supply unit comprise super capacitor and compressed-air power unit.Adopt super capacitor as fast reaction power module, its tool has the following advantages: (1) power density is high, and discharging current can reach hundreds of ampere; (2) charging interval is short, and ultracapacitor can adopt large current charge, can complete charging process in tens seconds; (3) long service life, the cycle life of ultracapacitor can reach more than tens thousand of times; (4) adaptive capacity to environment is strong, and ultracapacitor normally can work in the temperature range of-45 ~ 105 DEG C; (5) super capacitor also has advantage that is non-maintaining, environmental protection.The present invention adopts a kind of compressed-air power unit as relatively long-time power supply unit, be coupled with super capacitor, compressed-air power unit has following advantages: (2) device therefor is easy to obtain, system relates generally to compressor, air accumulator and decompressor, is the industrial machinery and equipment comparatively commonly used; (3) environmental friendliness, this electric power system does not have combustion process, and it utilizes the energy heats air prestored, and therefore whole process does not have the discharge of pollutant; (4) maintenance cost is low, and all parts of native system is the industrial products relatively commonly used, and can adapt to various operational environment, does not need to overhaul frequently parts, only needs the pressure change paying close attention to gas in air accumulator; (5) the energy storage cycle is unrestricted, long service life, and all parts of system is industrial machinery product, long service life.
Therefore, co-occurrence is compared with or without uninterruptible power system, and the present invention has plurality of advantages, has huge application potential and economic benefit.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the embodiment of the present invention 2 structural representation.
Embodiment
Embodiment 1
Fig. 1 is the structural representation of the embodiment 1 of free of discontinuities method of supplying power to of the present invention and power-supply system, and Inspect and control unit 2 monitors the working condition (in figure, dotted line is monitoring connecting line) of unit in real time.Inspect and control unit 2 is connected with supercapacitive cell 7, compressed-air power unit 9 by control circuit, uses the operating state of the in running order all the time monitoring of Inspect and control unit 2 dynamic realtime civil power 1, supercapacitive cell 7 and compressed-air power unit 9.
When civil power 1 normally works, civil power 1 inputs energy to super capacitor 7 and regenerative heat exchange unit 17, and drive motor 10 drives compressor 12 compressed air 11 simultaneously, and stored in air accumulator 14, parts 13 are inter-stage and the level aftercooler of compressor.When civil power 1 interrupts, switch 3 disconnects, and super capacitor 7 is powered for power consumption equipment 5, simultaneously drive motor units 20, starts compressed-air power system 9.The course of work of compressed-air power system 9 is described as follows: the pressure-air in air accumulator 14 obtains decompressor operating pressure through dropping valve unit 15, enter air cooler 16 preheating, then enter regenerative heat exchange unit 17 to heat up, first this part gas enter high pressure expansion machine 18 and drive decompressor to do work, then this part gas again enters regenerative heat exchange unit 17 and absorbs heat wherein, then enter low-pressure expansion machine 19 to do work, drive motor units 20 output power.It is pointed out that the progression of decompressor can be one-level or multistage.
Embodiment 2
Fig. 2 is the structural representation of the embodiment 3 of free of discontinuities power-supply system of the present invention, and the present embodiment is a kind of mobile dynamical system, can as onboard power etc.Its power source is compressed-air power unit 9, and compressor is wherein not included in the present embodiment; And it have comprise heat storage units with do not comprise heat storage units two kinds of situations; When comprising heat storage units, this part heat energy is from the electric energy stored or other forms of heat energy; When not comprising heat storage units, before decompressor and inter-stage include air cooler, utilize environmental energy heat every grade expand before gas.The power that power unit 9 produces mainly exports with the form of shaft work, mobile power is provided by swiveling wheel 23, when this dynamical system needs retarding braking, the shaft work of dynamical system unit 9 consumes moment by drive motors parts 8, reach the object of braking, the electric energy that motor 8 produces is charged for super capacitor 7 by power electronics converting member 6, like this can fast braking reclaim braking energy.When needs accelerate, super capacitor 7 output power, by power electronic equipment 6 drive motors 8, thus can increase moment fast, realizes the object accelerated fast.Control unit 2 is connected with all parts, realizes the real-time control to system.
In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different.All equivalences of doing according to structure, feature and the principle described in inventional idea of the present invention or simple change, be included in the protection range of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (7)
1. a novel free of discontinuities method of supplying power to, the mode of supercapacitive cell coupling compressed-air power unit is used to coordinate the external output power of civil power, it is characterized in that, use the operating state of the in running order all the time monitoring of Inspect and control unit dynamic realtime civil power, supercapacitive cell and compressed-air power unit, wherein
When monitoring civil power and being in the operating state of normal power supply, Inspect and control unit controls only makes civil power power to power consumption equipment, closes described compressed-air power unit simultaneously, wherein,
--judge whether to need to power to described supercapacitive cell according to the charge condition of the supercapacitive cell monitored, when the electricity of described supercapacitive cell is less than preset value, then make civil power power to supercapacitive cell simultaneously, if when the electricity of described supercapacitive cell is not less than described preset value, then disconnect the power supply to supercapacitive cell;
--judge whether to need to power to described compressed-air power unit according to the compressed air pressure information of the compressed air reservoir in the compressed-air power unit monitored and the temperature information of regenerative heat exchange unit, when the compressed air pressure information of described compressed air reservoir is less than predeterminated level, civil power is then made to be that the air compressor unit of described compressed-air power unit is powered, opening compressor bank is compressed air reservoir inflation, and/or when the temperature information of described regenerative heat exchange unit is less than predetermined value, then make civil power power to described regenerative heat exchange unit simultaneously, to heat the heat-storing material in described regenerative heat exchange unit, if when the compressed air pressure information of described compressed air reservoir is not less than predeterminated level, and/or the temperature information of described regenerative heat exchange unit is when being not less than described predetermined value, then disconnect the power supply to air compressor unit and/or regenerative heat exchange unit,
When monitoring civil power and being in the operating state of power-off, disconnect the connecting valve between civil power and power consumption equipment, start described supercapacitive cell and compressed-air power unit, the electric power part that described supercapacitive cell exports is powered for power consumption equipment, another part provides startup electric power for the expansion unit in described compressed-air power unit, after described compressed-air power unit starting, described supercapacitive cell stops powering to expansion unit, by the external output power of expansion unit drive motor unit in described compressed-air power unit.
2. free of discontinuities method of supplying power to as claimed in claim 1, it is characterized in that: described compressed-air power unit comprises motor, compressor bank, compressed air reservoir, air cooler, regenerative heat exchange unit, expansion unit, generator, described motor is under super capacitor drives, drive described compressor bank to operate, described compressed air reservoir will be delivered to after air compressing; Pipeline between described compressed air reservoir and air cooler is provided with by-pass valve control, after by-pass valve control is opened, pressure-air in compressed air reservoir enters after regenerative heat exchange unit absorbs heat further and changes HTHP air into after air cooler absorbing environmental heat, described HTHP air push expansion unit acting, described expansion unit drives described generator.
3. free of discontinuities method of supplying power to as claimed in claim 2, it is characterized in that: described expansion unit comprises high pressure expansion machine and low-pressure expansion machine, first the described HTHP air of discharging from described regenerative heat exchange unit enters high pressure expansion machine and promotes its acting, the pressure-air of discharging from high pressure expansion machine passes into described regenerative heat exchange unit absorption heat again, then drives low-pressure expansion machine acting.
4. free of discontinuities method of supplying power to as claimed in claim 3, is characterized in that: described compressor bank comprises aerial cooler after inter-stage and level.
5. a novel free of discontinuities power-supply system, comprise supercapacitive cell, compressed-air power unit and Inspect and control unit, it is characterized in that, described Inspect and control unit is by control circuit and supercapacitive cell, compressed-air power unit connects, use Inspect and control unit dynamic realtime monitoring civil power in running order all the time, the operating state of supercapacitive cell and compressed-air power unit, when monitoring civil power and being in the operating state of normal power supply, Inspect and control unit controls only makes civil power power to power consumption equipment, close described compressed-air power unit simultaneously, and civil power is charged to supercapacitive cell, when monitoring civil power and being in the operating state of power-off, disconnect the connecting valve between civil power and power consumption equipment, start described supercapacitive cell and compressed-air power unit, the electric power part that described supercapacitive cell exports is powered for power consumption equipment, and another part provides startup power for the expansion unit in described compressed-air power unit,
Described supercapacitive cell mainly comprises super capacitor and power electronics unit;
Described compressed-air power unit comprises motor, compressor bank, compressed air reservoir, air cooler, regenerative heat exchange unit, expansion unit, generator, described motor is under super capacitor drives, drive described compressor bank to operate, described compressed air reservoir will be delivered to after air compressing; Pipeline between described compressed air reservoir and air cooler is provided with by-pass valve control, after by-pass valve control is opened, pressure-air in compressed air reservoir enters after regenerative heat exchange unit absorbs heat further and changes HTHP air into after air cooler absorbing environmental heat, described HTHP air push expansion unit acting, described expansion unit drives described generator.
6. free of discontinuities power-supply system as claimed in claim 5, it is characterized in that: described expansion unit comprises high pressure expansion machine and low-pressure expansion machine, first the described HTHP air of discharging from described regenerative heat exchange unit enters high pressure expansion machine and promotes its acting, the pressure-air of discharging from high pressure expansion machine passes into described regenerative heat exchange unit absorption heat again, then drives low-pressure expansion machine acting.
7. the free of discontinuities power-supply system as described in claim 5 or 6, is characterized in that: the heat-storing material of regenerative heat exchange unit is sensible heat heat-storing material or latent heat storage material.
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| CN109139119A (en) * | 2018-09-07 | 2019-01-04 | 华中科技大学 | A kind of removable emergency power supply |
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| CN104242442A (en) * | 2014-08-26 | 2014-12-24 | 浙江大学 | Double-energy-source uninterruptible power supply device and method thereof |
| CN109900003A (en) | 2017-12-08 | 2019-06-18 | 丹佛斯（天津）有限公司 | Fluid injection control system and fluid circulating system |
| CN108736518B (en) * | 2018-06-19 | 2022-02-15 | 南方电网科学研究院有限责任公司 | Comprehensive energy supply system and method for urban complex and large public building group |
| CN112682296A (en) * | 2020-12-30 | 2021-04-20 | 中国核电工程有限公司 | Emergency power system for nuclear power plant and power system of nuclear power plant |
| CN113315215A (en) * | 2021-06-18 | 2021-08-27 | 哈尔滨工业大学 | Main pump emergency power supply device based on super capacitor energy storage |
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| FR2980526B1 (en) * | 2011-09-27 | 2015-01-30 | Valeo Sys Controle Moteur Sas | TURBO-PRESSURIZED MOTOR EQUIPPED WITH MEANS FOR REDUCING TURBOCHARGER ACTIVATION TIME |
| CN202872443U (en) * | 2012-08-30 | 2013-04-10 | 西南交通大学 | Fuel-cell-based communication power supply |
| CN203691044U (en) * | 2013-12-15 | 2014-07-02 | 中国科学院工程热物理研究所 | Novel continuous power supply system |
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| CN109139119A (en) * | 2018-09-07 | 2019-01-04 | 华中科技大学 | A kind of removable emergency power supply |
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Effective date of registration: 20180503 Address after: 100086 060 15, block B, 1 building, 38 Zhongguancun Avenue, Haidian District, Beijing. Patentee after: Zhongke energy storage (Beijing) Consulting Co., Ltd. Address before: 100190 North four Ring West Road, Haidian District, Beijing, A202 Patentee before: Institute of Engineering Thermophysics, Chinese Academy of Sciences |
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