CN103607034B - Intensive light-storage thermal-cold system - Google Patents
Intensive light-storage thermal-cold system Download PDFInfo
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- CN103607034B CN103607034B CN201310566260.0A CN201310566260A CN103607034B CN 103607034 B CN103607034 B CN 103607034B CN 201310566260 A CN201310566260 A CN 201310566260A CN 103607034 B CN103607034 B CN 103607034B
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- photovoltaic module
- energy storage
- boosting inverter
- power consumption
- energy
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Secondary Cells (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of intensive light-storage thermal-cold system, comprise photovoltaic module, energy storage component, the boosting inverter for transform light energy being become electric energy, described photovoltaic module is connected with power consumption equipment by described boosting inverter, and described power consumption equipment is all connected with described energy storage component with described photovoltaic module.First, transform light energy is become electric energy by photovoltaic module, electric energy does not store by means of only energy storage battery, also be transferred to power consumption equipment by boosting inverter, when the electric energy that photovoltaic module produces is not enough, energy storage battery can be adopted to be powered to power consumption equipment by boosting inverter by the electric energy of storage.This system is simple, and integrated level is high, and convenient operation manages, with low cost.
Description
Technical field
The present invention relates to a kind of electricity generation system, especially relate to a kind of intensive light-storage thermal-cold system.
Background technology
China's large area territory light source is abundant, be evenly distributed.Compared with water power, wind-powered electricity generation, nuclear power etc., solar power generation is pollution-free, noiselessness, application technology are ripe and safe and reliable.Except large-scale grid connection generating with from except net application, solar energy can also by drawing water, superconduction, storage battery, the various ways such as hydrogen manufacturing store, and utilizes solar energy can meet the demand of China to the energy.
The microgrid structure being mainly distributed hot and cold, electric trilogy supply composition of traditional light-preserved system.The operational environment that in traditional light-preserved system, subsystems demand fulfillment is different, and subsystems arranges dispersion, cooperation difficulty, existence coordinates loss, debugging maintenance is very inconvenient, cost of investment is high and cost performance is low.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, provide a kind of and be easy to operational administrative, with low cost, integrated intensive light-storage thermal-cold system.
Its technical scheme is as follows: a kind of intensive light-storage thermal-cold system, comprise photovoltaic module, energy storage component, the boosting inverter for transform light energy being become electric energy, described photovoltaic module is connected with power consumption equipment by described boosting inverter, and described power consumption equipment is all connected with described energy storage component with described photovoltaic module.
Below further technical scheme is described:
Preferably, the transmission line that described inverter is connected with described power consumption equipment is provided with the first switch, and one end of described first switch is connected with the output of described boosting inverter, and the other end of described first switch is connected with described power consumption equipment.First switch is set, according to intensity of light source situation and grid power trend, by the period, system can be incorporated to 380V microgrid and power consumption equipment is powered.
Preferably, the other end of described first switch is also connected with industrial transformers by second switch, and described industrial transformers is connected with high voltage transmission line.The 380V voltage that boosting inverter exports by industrial transformers rises to 10KV, carries out power transmission and distribution by overhead transmission line.
Preferably, described energy storage component is energy storage battery, and described energy storage battery is connected with battery management system.The operating state of energy storage battery can be controlled by battery management system, managed energy storage battery, can ensure that energy storage battery is used safely.
Preferably, also comprise container, described photovoltaic module, energy storage component, boosting inverter are all arranged in described container.
Preferably, be also provided with ice in described container and store system, described ice stores system and is connected with the output of described boosting inverter.When sunshine condition is better, after photovoltaic module is complete to the charging of energy storage battery group, for improving utilization rate of electrical, exports electric energy through straight exchange conversion, system power supply being stored to ice, ice making accumulation of energy.When needing, ice stores system can carry out cooling protection to visual plants such as power electronic equipment important in system and main control devices.
Preferably, in described container, also heat sink is provided with.This heat sink is used heat recycling water heater, and the circulation pipe of used heat recycling water heater is arranged on internal container, the in-built cold water of circulation pipe, utilizes, can extend the useful life of container to the used heat that container produces.
Below the principle, effect etc. of preceding solution are described:
Transform light energy is become electric energy by photovoltaic module, and electric energy does not store by means of only energy storage battery, is also transferred to power consumption equipment by boosting inverter.When the electric energy that photovoltaic module produces is not enough, energy storage battery can be adopted to be powered to power consumption equipment by boosting inverter by the electric energy of storage.This system is simple, and integrated level is high, and convenient operation manages, and system output voltage is stablized, with low cost.
Accompanying drawing explanation
Fig. 1 is intensive heat accumulation cooling system structural representation described in the embodiment of the present invention;
Fig. 2 is intensive heat accumulation cooling system working state figure one described in the embodiment of the present invention;
Fig. 3 is intensive heat accumulation cooling system working state figure two described in the embodiment of the present invention;
Fig. 4 is intensive heat accumulation cooling system working state figure three described in the embodiment of the present invention.
Description of reference numerals:
10, photovoltaic module, 20, boosting inverter, 30, energy storage battery, 31, battery management system, 40, power consumption equipment, the 50, first switch, 60, heat sink, 70, ice stores system, 80, second switch, 90, industrial transformers, 100, container.
Embodiment
Below embodiments of the invention are described in detail:
As shown in Figure 1, a kind of intensive light-storage thermal-cold system, comprise the photovoltaic module 10 for transform light energy being become electric energy, energy storage component, boosting inverter 20, described photovoltaic module 10 is connected with power consumption equipment 40 by described boosting inverter 20, and described power consumption equipment 40 is all connected with described energy storage component with described photovoltaic module 10.
Transform light energy is become electric energy by photovoltaic module 10, electric energy does not store by means of only energy storage battery 30, also be transferred to power consumption equipment 40 by boosting inverter 20, when the electric energy that photovoltaic module 10 produces is not enough, energy storage battery 30 can be adopted to be powered to power consumption equipment 40 by boosting inverter 20 by the electric energy of storage.This system configuration is simple, and integrated level is high, and convenient operation manages, with low cost.
Wherein, the transmission line that described inverter is connected with described power consumption equipment 40 is provided with the first switch 50, one end of described first switch 50 is connected with the output of described boosting inverter 20, and the other end of described first switch 50 is connected with described power consumption equipment 40.First switch 50 is set, according to intensity of light source situation and grid power trend, by the period, system can be incorporated to 380V microgrid and power consumption equipment 40 is powered.The other end of described first switch 50 is also connected with industrial transformers 90 by second switch 80, and described industrial transformers 90 is connected with high voltage transmission line.The 380V voltage that boosting inverter 20 exports by industrial transformers 90 rises to 10KV, carries out power transmission and distribution by overhead transmission line.
Described energy storage component is energy storage battery 30, and described energy storage battery 30 is connected with battery management system 31.The operating state of energy storage battery 30 can be controlled by battery management system 31, managed energy storage battery 30, can ensure that energy storage battery 30 is used safely.
This intensive light-storage thermal-cold system also comprises container 100, and described photovoltaic module 10, energy storage component, boosting inverter 20 are all arranged in described container 100.Also be provided with ice in described container 100 and store system 70, described ice stores system 70 and is connected with the output of described boosting inverter 20.When sunshine condition is better, after photovoltaic module 10 pairs of energy storage battery group chargings are complete, for improving utilization rate of electrical, export electric energy through straight exchange conversion, system 70 being stored to ice and powers, ice making accumulation of energy.When needing, ice stores system 70 can carry out cooling protection to visual plants such as power electronic equipment important in system and main control devices.Heat sink 60 is also provided with in described container 100.This heat sink 60 is used heat recycling water heater, and the circulation pipe of used heat recycling water heater is arranged on container 100 inside, the in-built cold water of circulation pipe, utilizes, can extend the useful life of container 100 to the used heat that container 100 produces.
Heat sink 60 is installed in container 100, this heat sink 60 has cold water pipes, flow in cold water pipes cold water, the heat that electric equipment set in container 100 and energy storage battery 30 produce is taken away by the cold water flowed, and this heat is outputted to external heat hydrophone and realize used heat recycling.
In the present embodiment, the output voltage stabilization of intensive light-storage thermal-cold system of the present invention, internal system equipment work safety is stablized, and space availability ratio is high.Container is double does photovoltaic bracket, and floor space is little, does not need separately to take up space to realize photovoltaic generation and energy storage.Electrical connection is reduced to minimum by intensive light-storage thermal-cold system of the present invention, and power loss is low, high to the former utilance of light.Intensive light-storage thermal-cold system energy of the present invention networking parallel with one another, improves power stage.
Job description is carried out to each assembly in system below:
Photovoltaic module: use photovoltaic array component, the direct voltage of output is 30V, and it is at human safety voltage below 36V.Voltage detecting and current detecting are carried out to the output of photovoltaic module, in the straight AC converter of rear class, adds MPPT MPPT maximum power point tracking function, ensure photovoltaic module 10 when power generation operation with maximal efficiency work.In embodiments of the invention, photovoltaic module 10 uses model to be still moral STP250S-20/Wd assembly, and the maximum rated power output of the photovoltaic module 10 of this model is 500W, and output rated voltage is direct current 30V.Intensive light-storage thermal-cold system of the present invention is photovoltaic module described in STP250S-20/Wd 10 containing two block-type number.
Energy storage battery and battery management system: the voltage on battery charging loop, at below 36V, is consistent with photovoltaic array input voltage, based on lead-acid battery or lithium battery.And the carrying out between photovoltaic module 10 is directly electrically connected, the circuit loss in charging process of storage battery set is dropped to minimum.When photovoltaic module 10 quits work, battery carries out power supply and exports.In the present embodiment, energy storage battery adopts lithium battery, and batteries rated voltage is 30V, and batteries to store energy capacity is 1kWh.Battery management system 31 is installed monitoring and protection is carried out to single energy storage battery.
Orthogonal stream boosting inverter: the direct current 30V that orthogonal stream boosting inverter 20 pairs of photovoltaic modulies 10 or energy storage battery 30 export carries out boosting inverter, first rise to the direct voltage between 540V to 600V, carry out three-phase bridge type inverse by cutting-in control afterwards, export 380V three-phase alternating current.Cutting-in control is carried out to three-phase inverter bridge circuit, ensures that 380V exchanges output and can power to power consumption equipment 40 at any time, or generate electricity by way of merging two or more grid systems.
Ice stores system: when irradiation on same day source is more abundant, after the charging of the photovoltaic module 10 pairs of energy storage battery groups is complete, is improve utilization rate of electrical, exports high-tension electricity through straight AC inverter, and stores system 70 to ice and power, ice making accumulation of energy.In the present embodiment, ice stores system and SAPMAC method system, only cools power electronic equipment and main control device, uses snake shaped steel coil pipe, and circuit heater members adopts aluminium radiator fin to be binded by silica gel, steel disk pipe heat transfer heat radiation.When needing, ice stores system 70 can carry out cooling protection to the equipment of the outbalances such as power electronic equipment important in intensive light-storage thermal-cold system of the present invention and main control device.
First switch: according to the intensity of light source and the demand of grid power at sunshine, by the period, system can be incorporated to 380V microgrid and power consumption equipment 40 is powered, or through industrial transformers 90,380V boost in voltage is delivered to overhead transmission line to 10KV and carries out power transmission and distribution.
Heat sink 60: adopt heat sink 60 in present system, the heat that electric equipment, energy-storage battery in container 100 are produced and sunshine waste heat be collected into water heater through water-cooling wall water cooling tube, realize used heat and use again.
The present invention, according to intensity of illumination and grid power demand, can be divided into three kinds of operation modes, is described in detail below to three kinds of operation modes of the present invention:
Operation mode one: photovoltaic module 10 pairs of energy storage battery groups are charged.
Please refer to Fig. 2, photovoltaic module 10 only charges to energy storage battery group, and battery management ensures the safety and Health charging of batteries, and carries out necessary overheated over-charge protective.Now, the ice of orthogonal stream transform component and rear class stores system 70 and does not all work, and reduces energy loss.
Operation mode two: 30V voltage transitions is exported 380V three-phase electricity through orthogonal boosting inverter 20 by photovoltaic module 10, and system 70 is stored to ice power, need also this 380V three-phase electricity to be connected to power consumption equipment or to be connected on high voltage transmission line according to user.
Please refer to Fig. 3, when the charging of energy storage battery group is complete, when sunshine condition is better, photovoltaic module 10 exports electric energy, exports 380V three-phase electricity, store system 70 power to ice through the straight exchange conversion of boosting inverter 20.Ice stores system 70 and works, and carries out cooling protection to the power electronic equipment of boosting inverter 20 and main control device.As required, generate electricity by way of merging two or more grid systems simultaneously.
Operation mode three: energy storage battery group exports 380V three-phase electricity through the straight exchange conversion of boosting inverter 20, stores system 70 power to ice, and need to carry out electric energy output or grid-connected according to user.
Please refer to Fig. 4, when sunshine condition does not meet, energy storage battery group exports electric energy, and the boosting inverter 20 through rear class is transformed to 380V three-phase alternating current, or stores system 70 to ice and power, and generates electricity by way of merging two or more grid systems as required.
The above embodiment only have expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. an intensive light-storage thermal-cold system, it is characterized in that, comprise the photovoltaic module for transform light energy being become electric energy, energy storage component, boosting inverter, described photovoltaic module is connected with power consumption equipment by described boosting inverter, described power consumption equipment is all connected with described energy storage component with described photovoltaic module, also comprise container, described photovoltaic module, energy storage component, boosting inverter is all arranged in described container, be provided with ice in described container and store system, described ice stores system and is connected with the output of described boosting inverter, described photovoltaic module is used for powering to energy storage component, described photovoltaic module is also for storing system charging to by described boosting inverter described ice, the transmission line that described boosting inverter is connected with described power consumption equipment is provided with the first switch, one end of described first switch is connected with the output of described boosting inverter, the other end of described first switch is connected with described power consumption equipment, the other end of described first switch is also connected with industrial transformers by second switch, described industrial transformers is connected with high voltage transmission line, heat sink is provided with in described container, described first switch is used for according to intensity of light source situation and grid power trend, by the period, system can be incorporated to 380V microgrid to power to power consumption equipment.
2. intensive light-storage thermal-cold system according to claim 1, is characterized in that, described energy storage component is energy storage battery, and described energy storage battery is connected with battery management system.
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| CN201310566260.0A CN103607034B (en) | 2013-11-13 | 2013-11-13 | Intensive light-storage thermal-cold system |
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| CN201310566260.0A CN103607034B (en) | 2013-11-13 | 2013-11-13 | Intensive light-storage thermal-cold system |
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| CN103607034A CN103607034A (en) | 2014-02-26 |
| CN103607034B true CN103607034B (en) | 2015-12-30 |
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| CN112688621A (en) * | 2020-11-25 | 2021-04-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Photovoltaic power generation system applied to container data center |
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| CN201726347U (en) * | 2010-06-29 | 2011-01-26 | 天津蓝天太阳科技有限公司 | Solar cell power generation system |
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