CN106230011B - A kind of Stirling-electric hybrid power generation can apply to electric power isolated island and storage can methods - Google Patents
A kind of Stirling-electric hybrid power generation can apply to electric power isolated island and storage can methods Download PDFInfo
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- CN106230011B CN106230011B CN201610830819.XA CN201610830819A CN106230011B CN 106230011 B CN106230011 B CN 106230011B CN 201610830819 A CN201610830819 A CN 201610830819A CN 106230011 B CN106230011 B CN 106230011B
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- stirling
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- electric hybrid
- energy storage
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Classifications
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2254/00—Heat inputs
- F02G2254/40—Heat inputs using heat accumulators
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
Abstract
The invention discloses a kind of Stirling-electric hybrid power generations that can apply to electric power isolated island and storage can method.Mountain area, low developed area still have a big chunk domestic electric network that can not be routed to family.Present invention burning stove heating stainless steel heat accumulating pan, makes Stirling-electric hybrid generate electricity；Stirling-electric hybrid out-put supply is to mixed energy storage system energy storage；Mixed energy storage system is made of supercapacitor group, ferric phosphate lithium cell group, two-way DC/DC controller and status monitor；Digital DSP electric discharge inverter is in parallel with 48V dc bus, and after digital DSP electric discharge inverter inversion, output voltage is the industrial-frequency alternating current of 220V, for users to use.The present invention carries out fast energy storage to the electricity that Stirling-electric hybrid electric heating combined supply apparatus issues, while storage electric energy is converted into the good power frequency supply of quality by digital DSP inverter, to meet resident's illumination and small household appliances needs；As long as there is biomass fuel, so that it may which electrification energy storage at any time allows outlying peasant household to terminate the date without electricity.
Description
Technical field
The invention belongs to the power generation of electric power isolated island and storage energy fields, are related to a kind of Stirling-electric hybrid that can apply to electric power isolated island
Power generation and storage can methods.
Background technique
In the area that some Special Geographics are distributed, such as mountain area, low developed area, still there is a big chunk family in the nearly stage
Power grid can not also be routed to family in a short time, and the quality of life of the people and production are severely impacted, and economic civilization is generally fallen
Afterwards, the reason of causing such phenomenon to be still unable to get basic solution so far has the following: wind field condition needed for wind-power electricity generation
It is more harsh, it is difficult to apply；Solar energy density is low, stability is poor, and solar power generation power supply is highly unstable；Cleaning
Combustion gas resource can not be sent to；Mineral resources are deficient.But these regional biomass resources are abundant.
Summary of the invention
The object of the present invention is to provide a kind of power generation of the Stirling-electric hybrid of electric power isolated island and storage energy methods, to solve some spies
Different area user, the problem of can not having access to electricity.
The method of the present invention is specifically:
(1) with burning stove heating stainless steel heat accumulating pan, Stirling-electric hybrid is made to generate electricity.The combustion furnace include primary air nozzle,
Overfiren air port, burner hearth, fire grate and slag trapping chamber.The heat accumulating pan is arranged in roof of the furnace；Fire grate setting collects slag in burner hearth bottom
Room is arranged in fire grate bottom, and slag trapping chamber's side wall opens up slag notch；Burner hearth sidewall is equipped with feed opening and observation window.At the top of burner hearth sidewall
It is connected to by flue with dust collection chamber side wall；Flue is equipped with ash disposal hole；Air preheater of secondary air is connected at the top of the dust collection chamber,
It is connected to First air air preheater at the top of air preheater of secondary air, is connected to economizer at the top of First air air preheater, saves coal
Exhaust tube is connected at the top of device；The air outlet of primary air fan connects the economizer bank air intake vent of First air air preheater, First air air
The economizer bank air outlet of preheater connects the primary air nozzle of slag trapping chamber, and primary air nozzle is equipped with along circumferentially uniformly distributed multiple of slag trapping chamber；Two
The air outlet of secondary blower connects the economizer bank air intake vent of air preheater of secondary air, the economizer bank air outlet of air preheater of secondary air
Connect the overfiren air port being provided in the middle part of burner hearth sidewall, overfiren air port is equipped with along circumferentially uniformly distributed multiple of burner hearth.It is full of in heat accumulating pan
The hot end of fused salt, Stirling-electric hybrid is immersed in fused salt, and agitating device is used to stir the fused salt in heat accumulating pan.
(2) Stirling-electric hybrid out-put supply is to mixed energy storage system energy storage.The mixed energy storage system is by supercapacitor
Group, ferric phosphate lithium cell group, two-way DC/DC controller and status monitor composition；Supercapacitor group and ferric phosphate lithium cell
Group is connected with a DC/DC controller respectively, and two two-way DC/DC controllers are parallel on 48V dc bus；Stirling-electric hybrid hair
220V industrial-frequency alternating current out is parallel on 48V dc bus after AC/DC conversion module G conversion；Status monitor is by super electricity
The electricity of container group exports as feedback quantity and executes signal to one of them two-way DC/DC controller；Two two-way DC/DC
Controller carries out charge and discharge control to supercapacitor group and ferric phosphate lithium cell group.
(3) digital DSP electric discharge inverter is in parallel with 48V dc bus, defeated after digital DSP electric discharge inverter inversion
Voltage is the industrial-frequency alternating current of 220V out, for users to use, specific as follows: the digital DSP electric discharge inverter includes control
Making sheet, bottom plate and base plate；Bottom plate is mounted on the base, and control panel is mounted on bottom plate；Integrated boost circuit, inversion electricity on bottom plate
Road and filter circuit；Booster circuit is in parallel with 48V dc bus, and direct current signal is defeated by inverter circuit；Control panel is with DSP core
Piece is core, and by acquiring the voltage of inverter circuit, current signal passes through data line after processing compared with internal comparing unit
Control signal is exported to the optocoupler on bottom plate, the pwm control signal that generation control IGBT is switched on or off after light-coupled isolation is to inverse
Power transformation road；The direct current signal that inverter circuit transmits booster circuit is reverse into AC signal and exports after being defeated by filter circuit filtering
Voltage is the industrial-frequency alternating current of 220V.
The water inlet of water circulating pump connects water outlet of water tank, and water outlet connects the cold end water inlet of Stirling-electric hybrid；Stirling-electric hybrid
Cold end water outlet connects the pipeline water inlet and water tank water inlet of economizer, and the pipe water outlet of economizer is as hot water supply opening.
The agitating device includes stirring rod and motor；Stirring rod is fixed on the output shaft of motor, and immerses fused salt
In.
The booster circuit uses BOOST booster circuit, and inverter circuit uses full-bridge voltage type inverter circuit.
The model MS320F2810 of the dsp chip.
The invention has the benefit that
1, the present invention for based on the power generator of combustion furnace and Stirling-electric hybrid issue alternating current voltage and frequency fluctuation compared with
Greatly, very unstable, while to consider the problems of to save peasant household's biomass fuel, the electricity for issuing Stirling-electric hybrid electric heating combined supply apparatus
It carries out fast energy storage and promotes electric power quality, while storage electric energy is passed through digital DSP (digital signal processor) inverter
It is converted into the good power frequency supply of quality, to meet the needs (1~5 degree of electricity) of the illumination of resident's same day and daily small household appliances.As long as
There are the biomass fuels such as firewood, stalk, so that it may which electrification energy storage at any time allows outlying peasant household to terminate the date without electricity.
2, mixed energy storage system and electric discharge inverter are rear end corollary equipment of the invention, the storage that mixed energy storage system uses
Energy unit, selects efficient ferric phosphate lithium cell group and super capacitor group, has sufficiently merged lithium battery high-energy density and super electricity
The characteristic for holding high power density mixes intelligent management unit and digital DSP electric discharge inverter, and taking full advantage of Stirling-electric hybrid has
Imitate power.
Detailed description of the invention
Fig. 1 is system structure schematic diagram of the invention；
Fig. 2 is the electricity generating principle figure of Stirling-electric hybrid in the present invention；
Fig. 3 is the structural schematic diagram of digital DSP electric discharge inverter in the present invention.
Specific embodiment
As shown in Figure 1, a kind of Stirling-electric hybrid power generation that can apply to electric power isolated island and storage energy method, specific as follows:
(1) with burning stove heating stainless steel heat accumulating pan, Stirling-electric hybrid is made to generate electricity.As shown in Fig. 2, combustion furnace 20 includes primary
Air port 2, overfiren air port 18, burner hearth 24, fire grate 22 and slag trapping chamber 23.Heat accumulating pan 15 is arranged in roof of the furnace；The setting of fire grate 22 exists
24 bottom of burner hearth, slag trapping chamber 23 are arranged in 22 bottom of fire grate, and slag trapping chamber's side wall opens up slag notch 1；24 side wall of burner hearth is equipped with charging
Mouth 21 and observation window 19.24 top side wall of burner hearth is connected to by flue 25 with dust collection chamber 6 side wall；Flue 25 is equipped with ash disposal hole 5；Collection
Air preheater of secondary air 7 is connected at the top of grey room 6, connection First air air preheater 8 at the top of air preheater of secondary air 7, one
It is connected to economizer 9 at the top of secondary wind air preheater 8, is connected to exhaust tube 10 at the top of economizer 9；The air outlet of primary air fan 3 connects one
The economizer bank air outlet of the economizer bank air intake vent of secondary wind air preheater 8, First air air preheater 8 connects the primary of slag trapping chamber 23
Air port 2, primary air nozzle 2 are equipped with along circumferentially uniformly distributed 4 of slag trapping chamber；The air outlet of secondary air fan 4 connects air preheater of secondary air 7
Economizer bank air intake vent, the economizer bank air outlet of air preheater of secondary air 7 connects the Secondary Air being provided in the middle part of 24 side wall of burner hearth
Mouthfuls 18, overfiren air port 18 is equipped with along circumferentially uniformly distributed 4 of burner hearth.Fused salt 17, the hot end 14 of Stirling-electric hybrid are full of in heat accumulating pan 15
It is immersed in fused salt, agitating device 16 is used to stir the fused salt in heat accumulating pan；The water inlet water receiving case 11 of water circulating pump 12 is discharged
Mouthful, water outlet connects the cold end water inlet of Stirling-electric hybrid；The cold end water outlet of Stirling-electric hybrid connects the pipeline water inlet and water of economizer 9
11 water inlet of case, the pipe water outlet of economizer 9 is as hot water supply opening.Biomass is burnt in burner hearth 24, heat storage pot
Fused salt in 15, high-temperature molten salt heat the hot end driving Stirling-electric hybrid power generation of Stirling-electric hybrid 13；High-temperature molten salt plays heat storing and heat preserving
Effect, it is ensured that driving Stirling-electric hybrid heating end temperature will not because heat accumulating pan burn influence due to fluctuation, to promote this
Special woods machine generating efficiency and effective rate of utilization.The generated output of Stirling-electric hybrid is 1~5KW, using 220V AC voltage, frequency
50HZ。
Agitating device is the motor with stirring rod, drives stirring rod to rotate in fused salt using the rotation of motor and causes to melt
Salt turbulent flow is conducive to heat exchange, and pump for liquid salts can also be selected to carry out fused salt circulation, enhances heat transfer effect.
(2) Stirling-electric hybrid out-put supply is to mixed energy storage system S energy storage.Mixed energy storage system by supercapacitor group S1,
Ferric phosphate lithium cell group S2, two-way DC/DC controller S3 and status monitor S4 composition；Two-way DC/DC controller uses
SG3525 chip forms H bridge joint electricity by IGBT power tube as PWM (pulsewidth modulation) generator, driving chip IR2110 driving
Road；Status monitor uses CPU for 32-bit and with the arm processor (model of floating-point operation ability
STM32F103C8T6), periphery is equipped with voltage and current detection circuit and 16 ultra high speed A/D conversion circuits；Supercapacitor group and phosphorus
Sour lithium iron battery group is connected with a DC/DC controller respectively, and two two-way DC/DC controllers are parallel on 48V dc bus；
Stirling-electric hybrid issues 220V industrial-frequency alternating current, is parallel on 48V dc bus after AC/DC conversion module G conversion；Condition monitoring
Device exports using the electricity of supercapacitor group as feedback quantity and executes signal to one of them two-way DC/DC controller；Two
Two-way DC/DC controller carries out charge and discharge control to supercapacitor group and ferric phosphate lithium cell group, makes mixed energy storage system can
Neatly to participate in the power output adjustment of stirling generator, quick, the accurate regulation of system running state is realized.
To the control of mixed energy storage system by the way of " supercapacitor group preferentially charge, preferential discharge ", to reduce
The charge and discharge number of lithium battery, improves the length of service of entire energy-storage system, can give full play to lithium battery energy density greatly and
The advantage that supercapacitor cycle life is high, power density is big, has well solved unstable when special boiler burning, causes this
The technical problem of Te Lin power generation power quality difference.
(3) digital DSP (digital signal processor) electric discharge inverter M is in parallel with 48V dc bus, and digital DSP is put
After electric inverter inversion, output voltage is the industrial-frequency alternating current of 220V, for users to use；As shown in figure 3, digital DSP electric discharge
Inverter includes control panel 26, bottom plate 27 and pedestal 29；Pedestal 29 is a radiator, plays protection in inverter work and makees
With；Bottom plate 27 is mounted on the base, and control panel 26 is mounted on bottom plate；Integrated boost circuit M1, inverter circuit M2 on bottom plate 27
With filter circuit M3；Booster circuit is in parallel with 48V dc bus, and direct current signal is defeated by inverter circuit；Booster circuit uses
BOOST booster circuit, inverter circuit use full-bridge voltage type inverter circuit.Control panel 26 passes through acquisition using dsp chip as core
Voltage, the current signal of inverter circuit are exported by data line after handling compared with internal comparing unit and control signal to bottom plate
Optocoupler 28 on 27, the pwm control signal that generation control IGBT is switched on or off after optocoupler 28 is isolated is to inverter circuit；Inversion electricity
Output voltage is 220V's after the direct current signal that booster circuit is transmitted on road is reverse into AC signal and is defeated by filter circuit filtering
Industrial-frequency alternating current.The model MS320F2810 of dsp chip.Digital DSP electric discharge inverter can be quickly and accurately to complete machine
Operation is implemented to control and monitor.
Claims (5)
1. a kind of Stirling-electric hybrid power generation that can apply to electric power isolated island and storage can methods, it is characterised in that: this method is specifically such as
Under:
(1) with burning stove heating stainless steel heat accumulating pan, Stirling-electric hybrid is made to generate electricity；The combustion furnace includes primary air nozzle, secondary
Air port, burner hearth, fire grate and slag trapping chamber；The heat accumulating pan is arranged in roof of the furnace；Fire grate is arranged in burner hearth bottom, and slag trapping chamber sets
It sets in fire grate bottom, slag trapping chamber's side wall opens up slag notch；Burner hearth sidewall is equipped with feed opening and observation window；Pass through at the top of burner hearth sidewall
Flue is connected to dust collection chamber's side wall；Flue is equipped with ash disposal hole；Air preheater of secondary air is connected at the top of the dust collection chamber, it is secondary
It is connected to First air air preheater at the top of wind air preheater, is connected to economizer, economizer top at the top of First air air preheater
Portion is connected to exhaust tube；The air outlet of primary air fan connects the economizer bank air intake vent of First air air preheater, First air air preheat
The economizer bank air outlet of device connects the primary air nozzle of slag trapping chamber, and primary air nozzle is equipped with along circumferentially uniformly distributed multiple of slag trapping chamber；Secondary Air
The air outlet of machine connects the economizer bank air intake vent of air preheater of secondary air, and the economizer bank air outlet of air preheater of secondary air connects out
The overfiren air port being located in the middle part of burner hearth sidewall, overfiren air port are equipped with along circumferentially uniformly distributed multiple of burner hearth；Fused salt is full of in heat accumulating pan,
The hot end of Stirling-electric hybrid is immersed in fused salt, and agitating device is used to stir the fused salt in heat accumulating pan；
(2) Stirling-electric hybrid out-put supply is to mixed energy storage system energy storage；The mixed energy storage system is by supercapacitor group, phosphorus
Sour lithium iron battery group, two-way DC/DC controller and status monitor composition；Supercapacitor group and ferric phosphate lithium cell group difference
It connects with a two-way DC/DC controller, two two-way DC/DC controllers are parallel on 48V dc bus；Stirling-electric hybrid issues
220V industrial-frequency alternating current is parallel on 48V dc bus after AC/DC conversion module G conversion；Status monitor is by super capacitor
The electricity of device group exports as feedback quantity and executes signal to one of them two-way DC/DC controller；Two two-way DC/DC controls
Device processed carries out charge and discharge control to supercapacitor group and ferric phosphate lithium cell group；
(3) digital DSP electric discharge inverter is in parallel with 48V dc bus, after digital DSP electric discharge inverter inversion, output electricity
Pressure is the industrial-frequency alternating current of 220V, for users to use, specific as follows: the described digital DSP electric discharge inverter include control panel,
Bottom plate and base plate；Bottom plate is mounted on the base, and control panel is mounted on bottom plate；Integrated boost circuit on bottom plate, inverter circuit and
Filter circuit；Booster circuit is in parallel with 48V dc bus, and direct current signal is defeated by inverter circuit；Control panel is with dsp chip
Core, by acquiring the voltage of inverter circuit, current signal is exported after processing by data line compared with internal comparing unit
Signal is controlled to the optocoupler on bottom plate, the pwm control signal that control IGBT is switched on or off is generated after light-coupled isolation and gives inversion electricity
Road；The direct current signal that inverter circuit transmits booster circuit is reverse into AC signal and is defeated by output voltage after filter circuit filtering
For the industrial-frequency alternating current of 220V.
2. a kind of Stirling-electric hybrid power generation that can apply to electric power isolated island according to claim 1 and storage energy method, special
Sign is: the water inlet of water circulating pump connects water outlet of water tank, and water outlet connects the cold end water inlet of Stirling-electric hybrid；Stirling-electric hybrid it is cold
Pipeline water inlet and water tank water inlet that the mouth of a river connects economizer are brought out, the pipe water outlet of economizer is as hot water supply opening.
3. a kind of Stirling-electric hybrid power generation that can apply to electric power isolated island according to claim 1 and storage energy method, special
Sign is: the agitating device includes stirring rod and motor；Stirring rod is fixed on the output shaft of motor, and immerses fused salt
In.
4. a kind of Stirling-electric hybrid power generation that can apply to electric power isolated island according to claim 1 and storage energy method, special
Sign is: the booster circuit uses BOOST booster circuit, and inverter circuit uses full-bridge voltage type inverter circuit.
5. a kind of Stirling-electric hybrid power generation that can apply to electric power isolated island according to claim 1 and storage energy method, special
Sign is: the model MS320F2810 of the dsp chip.
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| CN201610830819.XA CN106230011B (en) | 2016-09-19 | 2016-09-19 | A kind of Stirling-electric hybrid power generation can apply to electric power isolated island and storage can methods |
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| CN106230011B true CN106230011B (en) | 2018-12-25 |
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| US7208846B2 (en) * | 2005-04-12 | 2007-04-24 | Chao-Hsiung Liang | Method and apparatus for generating electricity by waste airflow of air conditioning equipment |
| CN101340099A (en) * | 2008-08-28 | 2009-01-07 | 国网武汉高压研究院 | Super capacitor and accumulator hybrid energy-storing series type dynamic voltage restorer |
| CN101789620A (en) * | 2010-03-18 | 2010-07-28 | 大连理工大学 | Active parallel-connection type mixing energy storing system based on battery and super capacitor |
| CN202284527U (en) * | 2011-11-03 | 2012-06-27 | 张建城 | Gasification complementary stored-energy thermal power generation device of solar energy and biomass |
-
2016
- 2016-09-19 CN CN201610830819.XA patent/CN106230011B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7208846B2 (en) * | 2005-04-12 | 2007-04-24 | Chao-Hsiung Liang | Method and apparatus for generating electricity by waste airflow of air conditioning equipment |
| CN101340099A (en) * | 2008-08-28 | 2009-01-07 | 国网武汉高压研究院 | Super capacitor and accumulator hybrid energy-storing series type dynamic voltage restorer |
| CN101789620A (en) * | 2010-03-18 | 2010-07-28 | 大连理工大学 | Active parallel-connection type mixing energy storing system based on battery and super capacitor |
| CN202284527U (en) * | 2011-11-03 | 2012-06-27 | 张建城 | Gasification complementary stored-energy thermal power generation device of solar energy and biomass |
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