CN204361730U - Wind-force, photovoltaic, diesel generation three power supply send out electric power system - Google Patents
Wind-force, photovoltaic, diesel generation three power supply send out electric power system Download PDFInfo
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- CN204361730U CN204361730U CN201420869495.7U CN201420869495U CN204361730U CN 204361730 U CN204361730 U CN 204361730U CN 201420869495 U CN201420869495 U CN 201420869495U CN 204361730 U CN204361730 U CN 204361730U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
Wind-force, photovoltaic, diesel generation three power supply send out electric power system, are made up of Switched Reluctance GeneratorUsed in Wind Energy Converter System, photovoltaic generating system, diesel engine generator group system, buck-boost chopper, electrical storage device, inverter, rectifier, AC load, DC load; Its technical characteristic is, described Switched Reluctance GeneratorUsed in Wind Energy Converter System is connected with described buck-boost chopper, buck-boost chopper is all connected with described electrical storage device with described photovoltaic generating system, electrical storage device is connected with described inverter and described DC load simultaneously, inverter is connected with described AC load, described diesel engine generator group system is connected with described rectifier and AC load simultaneously, and rectifier is connected with DC load; This system can be used for the needs of remote resident's productive life stable power-supplying without the area that electrical network covers and wind and solar energy enriches.
Description
Technical field
The present invention relates to complemental power-generation and for electrical domain, be specifically related to adopt switch reluctance generator to be wind-driven generator, with photovoltaic generation and diesel generating set three with the use of three power supplys send out electric power system.
Background technology
The wind power generation clean, green, environmental protection is mark and solar power generation are the renewable energy power generation forms given priority to both at home and abroad for many years.
Current Wind turbines, mainly based on double-fed asynchronous wind driven generator group with directly drive total power changing type permanent magnet synchronous wind generator group, has some squirrel-cage asynchronism wind turbine generator concurrently; Double-fed asynchronous wind driven generator group has good cost performance, but its driving-chain often will have gear box, and this proposes harsh requirement to the reliability and maintainability of unit; Directly drive the maintenance workload that total power changing type permanent magnet synchronous wind generator group avoids gear box, reliability increases, but due to its rotating speed very low, along with the increase of power, the manufacturing process of multi-pole magneto alternator is complicated, and technical difficulty is large, motor volume is large, and cost is high; Squirrel-cage asynchronism wind turbine generator is then because wind energy utilization is low, bad adaptability is increasingly superseded.
Switch reluctance generator structure is simple, brushless on rotor, without winding, without permanent magnet; It is equivalent to a current source when running, and like this in certain range of speeds, output end voltage can not change along with the change of rotating speed, and this is very suitable for the wind energy conversion system of the variable-speed operation of current main-stream, can improve the utilization ratio of wind energy; Switch reluctance generator can realize higher generating efficiency under wind-force Direct driver, also eliminates gear box, makes whole power generation system structure more succinct, reliable, the development trend of this also wind generator system just; And in running, switch reluctance generator controllable parameter is many, as switching angle controls, Current cut control, PWM controls, and can realize the control strategy of more complicated easily, controls output dc voltage and electric current flexibly.
At present, the electricity generation system of wind-solar complementary type is comparatively common, but there is not been reported to adopt the system of this novel wind generator of switch reluctance generator and photovoltaic generation complementation.
For the galvanic feature of the direct output ripple of switch reluctance generator, the electrical conversion systems of its output interface part should from regular alternating current generator export completely different, will first through rectification link unlike alternating current generator, the direct current of its output ripple is in addition more conducive to charge in batteries.
Diesel generating set is traditional towards the conventional power plants without electrical network overlay area, the current general employing synchronous alternating-current generator of generator wherein.
In some remote areas covered without electrical network of China, also be often comparatively poor rural area or pastoral area, these regional major parts are also meant to be the abundant three northern areas of China of drought, solar energy and wind energy, have and utilize wind energy and the advantageous condition of solar energy, but also need the utilization of small investment, facility easy to maintenance just to have feasibility; In addition, this kind of fossil energy contaminated environment of diesel oil, and the utilization of regenerative resource often also more easily obtains the subsidy of government; So effectively utilize regenerative resource, take into account long-acting stable power-supplying, simplify after sending out an electric power system structure, the aspect such as reducing costs, the many power supplys containing renewable energy power generation send out power supply facilities should have application practical significance in these areas simultaneously.
Summary of the invention
According to above background technology, the utility model proposes and adopt switch reluctance generator as wind-driven generator, squirrel-cage three phase induction generator is diesel engine generator, switch reluctance generator output voltage is adjustable, the multi-power system that wind-force, photovoltaic, diesel generation three power supply alliance and batteries to store energy are for subsequent use, can strengthen for electrical stability and persistence, simple structure, high reliability, cost is low, safeguards simple.
The technical solution of the utility model is:
Wind-force, photovoltaic, diesel generation three power supply send out electric power system, are made up of Switched Reluctance GeneratorUsed in Wind Energy Converter System 1, photovoltaic generating system 2, diesel engine generator group system 3, buck-boost chopper 4, electrical storage device 5, inverter 6, rectifier 7, AC load 8, DC load 9; Its technical characteristic is, described Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 is connected with described buck-boost chopper 4, buck-boost chopper 4 is all connected with described electrical storage device 5 with described photovoltaic generating system 2, electrical storage device 5 is connected with described inverter 6 and described DC load 9 simultaneously, inverter 6 is connected with described AC load 8, described diesel engine generator group system 3 is connected with described rectifier 7 and AC load 8 simultaneously, and rectifier 7 is connected with DC load 9.
Described Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 comprises wind energy conversion system, switch reluctance generator and controller thereof and power inverter.
Described photovoltaic generating system 2 comprises photovoltaic battery array and photovoltaic controller.
Generator in described diesel engine generator group system 3 is squirrel-cage alternating current asynchronous generator.
Described buck-boost chopper 4 refers to and can boost to input direct voltage or the chopper circuit of decompression transformation, specifically buck-boost chopper or Cuk chopper or Sepic chopper or Zeta chopper, by the adjustment of the duty cycle of switching to the unique electronic power switch pipe in its inside, change its output dc voltage size.
Described Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 both buck-boost choppers 4, and described photovoltaic generating system 2 exports direct current by the mode of series connection or parallel connection.
Major technique effect of the present utility model is:
Wind-force of the present utility model, photovoltaic, diesel generation three power supply send out electric power system, effectively utilize wind energy and solar energy, protection of the environment; At wind energy and solar energy or one of them comparatively horn of plenty; and needed for enough loads during electric energy, diesel generating set system-down, only have to wind energy and solar energy more weak; and the electric energy in electrical storage device is when also approach exhaustion can not meet load, diesel generating set is starting operation.
Adopt switch reluctance generator as wind-driven generator, switch reluctance generator can directly drive, and the simpler cost of structural rate magneto alternator of itself is lower; The direct current of its direct output ripple, is more conducive to electrical storage device charging, and can or series-fed in parallel with being all photovoltaic cell that direct current exports; Simplify transformation of electrical energy structure and reduce cost.
Because magneto alternator understands loss of excitation unavoidably when running over a long time, cause decrease in efficiency, although the strong price of high performance permanent magnetic material magnetic is very expensive in addition; And the synchronous generator of electric excitation needs special DC power supply; So adopt the diesel engine generator group system of squirrel-cage asynchronism generator to simplify the structure reduce cost.
Visible, the utility model is except the continuation that improve power supply the existing complementary power generation systems such as the complementation of relative wind light mutual complementing, photovoltaic and diesel oil, wind-force and diesel oil complementation and stability, also be that a nested structure is simple, the system of low cost, this point is even more important, because remote without electrical network area, also be often the area that technical staff is difficult to go to maintenance, economic development falls behind, simple structure means that reliability height is few and safeguards, low cost is more conducive to the possibility of practical application.
Accompanying drawing explanation
Figure 1 shows that wind-force of the present utility model, photovoltaic, diesel generation three power supply send out electric power system structure chart.
Embodiment
Be illustrated in figure 1 wind-force, photovoltaic, diesel generation three power supply send out electric power system structure chart, in fact be alternatively four power-supply systems, because electrical storage device 5 wind-force and photovoltaic all can not normal power generation time, them can be replaced to power to the load, only have when totally can not meet load to the power consumption in electrical storage device 5, just start diesel engine generator group system 3.
Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 is made up of small-sized wind energy conversion system and supporting switchette reluctance generator and controller thereof, power inverter, complete Voltage Feedback voluntarily to control and MPPT maximum power point tracking control, this system is variable speed direct drive type wind generator system, and rated power, the rated voltage of its rated power, rated voltage and photovoltaic generating system 2 are equal or close; The nominal charging voltage of electrical storage device 5 should be significantly less than the two rated output voltage sum above.
Buck-boost chopper 4 is converted by the direct voltage that Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 sends, it can be the one in buck-boost chopper, Cuk chopper, Sepic chopper, Zeta chopper, by changing the duty cycle of switching of electronic power switch pipe unique in above chopper, regulate the output dc voltage size of chopper; If the output-parallel of the output of buck-boost chopper 4 and photovoltaic generating system 2, buck-boost chopper 4 need by the duty ratio of its internal power electronic switching tube of detection feedback adjusting to photovoltaic cell illumination, to prevent from producing circulation between buck-boost chopper 4 and photovoltaic generating system 2, if the two generation deficiency above, namely output voltage drops to a certain degree, the electronic power switch pipe be attached thereto in electrical storage device 5 disconnects, prevent the electric energy in electrical storage device 5 from passing back in above electricity generation system, and powered to inverter 6 and DC load 9 by electrical storage device 5; if the output of buck-boost chopper 4 is connected with the output of photovoltaic generating system 2, then the effect of buck-boost chopper 4 mainly plays a part to stablize it and namely photovoltaic generating system 2 output voltage sum stablizes electrical storage device 5 by charging voltage: when about photovoltaic generating system 2 exports as rated condition, Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 exports also for rated condition left and right, buck-boost chopper 4 mainly plays hypotensive effect steadily their total output voltages, about photovoltaic generating system 2 exports as rated condition and Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 exports deficiency but when can also operate, buck-boost chopper 4 is according to electrical storage device 5 charging voltage adjustment output voltage, photovoltaic generating system 2 export deficiency but can also run and Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 export for rated condition left and right time, buck-boost chopper 4 requires to adjust output voltage size according to electrical storage device 5 charging voltage equally, when two electricity generation systems all export obvious deficiency but effectively can also export positive, if can maintain by the boosting of buck-boost chopper 4 needs that output voltage meets electrical storage device 5, then now the effect of buck-boost chopper 4 is obvious especially, improve renewable energy utilization rate, reach the boosting limit and still can not meet electrical storage device 5 if the two exports not enough and buck-boost chopper 4 and to charge needs, then close two Blast Furnace Top Gas Recovery Turbine Unit (TRT) and powered to inverter 6 and DC load 9 by electrical storage device 5, until the power consumption of electrical storage device 5 totally and after sending warning message, then put into operation by manual start's minitype diesel oil engine group system 3 and send out power supply, no matter the Switched Reluctance GeneratorUsed in Wind Energy Converter System 1 i.e. output of buck-boost chopper 4 is in parallel with the output of photovoltaic generating system 2 or connects, when a side causes generation deficiency to shut down because of energy sources deficiency, the connection of itself and supply line need be disconnected by electronic power switch pipe.
When wind-force deficiency stops sending out power supply, electronic power switch pipe duty ratio in buck-boost chopper 4 maintains on boosting maximum ratio relation control point, namely when subsequent detection is enough large to wind-force, electrical storage device 5 Head switches closed moment, buck-boost chopper 4 is in maximum step-up ratio, according to actual conditions adjustment after starting, be so also be beneficial to utilize wind energy to greatest extent.
The respective output of electrical storage device 5 and rectifier 7 can not be powered to DC load 9 simultaneously, line when electrical storage device 5 or wind-powered electricity generation and photovoltaic generation work between rectifier 7 and DC load 9 needs to disconnect, and when rectifier 7 works, the line of electrical storage device 5 and DC load 9 needs to disconnect; Diesel engine generator group system 3 can not be powered to AC load 8 with the respective output of inverter 6 simultaneously, similar, and when being also side's work, the opposing party's circuit disconnects.
Rectifier 7 one kinds of schemes adopt not control i.e. diode-type bridge rectifier main circuit, produces when the difference that DC load 9 required voltage exports with it or inside comprise the load of multiple different voltage request by its internal dc source circuit transformations; Or adopt the bridge rectifier that controlled electric power electronic switching tube is formed, certainly, if the load that DC load 9 is multiple different voltage request is formed, then still need independent DC power supply quadratic transformation.
AC load 8 exchanges water pump, illumination etc. as pumping irrigation is required, and the mode that required different electric pressure takes secondary power supply to convert obtains.
Switched Reluctance GeneratorUsed in Wind Energy Converter System 1, photovoltaic generating system 2, inverter 6 internal control device, if and there is the rectifier 7 of internal control device, direct current needed for them is provided by special small storage battery, the charging of these storage batterys, and adopting DC load 9 to draw suitable power supply provides.
Claims (6)
1. wind-force, photovoltaic, diesel generation three power supply send out electric power system, are made up of Switched Reluctance GeneratorUsed in Wind Energy Converter System (1), photovoltaic generating system (2), diesel engine generator group system (3), buck-boost chopper (4), electrical storage device (5), inverter (6), rectifier (7), AC load (8), DC load (9), its technical characteristic is, described Switched Reluctance GeneratorUsed in Wind Energy Converter System (1) is connected with described buck-boost chopper (4), buck-boost chopper (4) is all connected with described electrical storage device (5) with described photovoltaic generating system (2), electrical storage device (5) is connected with described inverter (6) and described DC load (9) simultaneously, inverter (6) is connected with described AC load (8), described diesel engine generator group system (3) is connected with described rectifier (7) and AC load (8) simultaneously, rectifier (7) is connected with DC load (9).
2. wind-force according to claim 1, photovoltaic, diesel generation three power supply send out electric power system, it is characterized in that, described Switched Reluctance GeneratorUsed in Wind Energy Converter System (1) comprises wind energy conversion system, switch reluctance generator and controller thereof and power inverter.
3. wind-force according to claim 1, photovoltaic, diesel generation three power supply send out electric power system, it is characterized in that, described photovoltaic generating system (2) comprises photovoltaic battery array and photovoltaic controller.
4. wind-force according to claim 1, photovoltaic, diesel generation three power supply send out electric power system, it is characterized in that, the generator in described diesel engine generator group system (3) is squirrel-cage alternating current asynchronous generator.
5. wind-force according to claim 1, photovoltaic, diesel generation three power supply send out electric power system, it is characterized in that, described buck-boost chopper (4) refers to and can boost to input direct voltage or the chopper circuit of decompression transformation, specifically buck-boost chopper or Cuk chopper or Sepic chopper or Zeta chopper, by the adjustment of the duty cycle of switching to the unique electronic power switch pipe in its inside, change its output dc voltage size.
6. wind-force according to claim 1, photovoltaic, diesel generation three power supply send out electric power system, it is characterized in that, described Switched Reluctance GeneratorUsed in Wind Energy Converter System (1) both buck-boost choppers (4), and described photovoltaic generating system (2) exports direct current by the mode of series connection or parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869495.7U CN204361730U (en) | 2014-12-30 | 2014-12-30 | Wind-force, photovoltaic, diesel generation three power supply send out electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869495.7U CN204361730U (en) | 2014-12-30 | 2014-12-30 | Wind-force, photovoltaic, diesel generation three power supply send out electric power system |
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| Publication Number | Publication Date |
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| CN204361730U true CN204361730U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420869495.7U Expired - Fee Related CN204361730U (en) | 2014-12-30 | 2014-12-30 | Wind-force, photovoltaic, diesel generation three power supply send out electric power system |
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| CN (1) | CN204361730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703700A (en) * | 2016-04-06 | 2016-06-22 | 青岛中科麦特新能源有限公司 | Photovoltaic power generation system combined with fish farm |
| CN109768615A (en) * | 2017-11-09 | 2019-05-17 | 四川函繁科技有限公司 | Power supply module for agricultural irrigation systems |
-
2014
- 2014-12-30 CN CN201420869495.7U patent/CN204361730U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703700A (en) * | 2016-04-06 | 2016-06-22 | 青岛中科麦特新能源有限公司 | Photovoltaic power generation system combined with fish farm |
| CN109768615A (en) * | 2017-11-09 | 2019-05-17 | 四川函繁科技有限公司 | Power supply module for agricultural irrigation systems |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20171230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |