CN217182969U - Photovoltaic light heat energy source microgrid - Google Patents
Photovoltaic light heat energy source microgrid Download PDFInfo
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- CN217182969U CN217182969U CN202220564288.5U CN202220564288U CN217182969U CN 217182969 U CN217182969 U CN 217182969U CN 202220564288 U CN202220564288 U CN 202220564288U CN 217182969 U CN217182969 U CN 217182969U
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- 239000012530 fluid Substances 0.000 claims abstract description 67
- 230000005611 electricity Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000012774 insulation material Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 239000011229 interlayer Substances 0.000 claims description 4
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000005338 heat storage Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 241000243142 Porifera Species 0.000 description 1
- 241000097929 Porphyria Species 0.000 description 1
- 208000010642 Porphyrias Diseases 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
A photovoltaic light and heat energy source microgrid comprises a photovoltaic photo-thermal unit array; the outlet of the photovoltaic photo-thermal unit array is connected with the inlet of the hot fluid box, the outlet of the hot fluid box is connected with the inlet of the cold fluid box through a second thermal power cycle controller and a thermal load, and the outlet of the cold fluid box is connected with the inlet of the photovoltaic photo-thermal unit array through a first thermal power cycle controller; the photovoltaic photo-thermal unit array, the photovoltaic control inversion all-in-one machine, the storage battery, the hot fluid box, the second thermal cycle controller, the thermal load, the cold fluid box and the first thermal cycle controller are all connected with the operation management center. The utility model discloses a photovoltaic light and heat system's off-grid operation has broken away from the dependence to main electric wire netting, has improved the range of application of this technique. Through combining the electricity storage technology, the heat storage technology and the photovoltaic photo-thermal technology, the stability of the solar cogeneration is improved.
Description
Technical Field
The utility model belongs to photovoltaic light and heat is synthesized and is utilized research field, concretely relates to photovoltaic light heat energy source microgrid.
Background
The solar energy is widely and efficiently utilized, and the method is an effective means for solving the energy crisis and the environmental pollution faced by human at present. The photovoltaic photo-thermal technology realizes the comprehensive utilization of all bands of solar energy in a combined heat and power mode; however, current photovoltaic photothermal systems require mains power to maintain operation of their thermodynamic cycle controllers, test and control systems. For remote areas, the difficulty of the main network power supply technology is high, the marginal cost is obviously increased, and the solar energy resources in the areas are not favorably and fully utilized.
Meanwhile, the photovoltaic photo-thermal device is not coupled and matched with the heat storage and electricity storage device, the stability of electricity generation and heat supply is low, the problem of large fluctuation of solar energy resources cannot be solved, and extra auxiliary energy is required for supplement during application, so that high solar energy guarantee rate cannot be obtained, the investment of energy equipment is increased, and the industrial development of clean energy utilization is not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photovoltaic light heat energy source microgrid system realizes the application of photovoltaic light and heat technique in the off-grid area, improves the stability of solar thermal energy cogeneration.
In order to achieve the above object, the utility model adopts the following technical scheme:
a photovoltaic light and heat energy source microgrid comprises a photovoltaic photo-thermal unit array, an electricity storage unit, a heat recovery unit and a control and monitoring unit;
the power storage unit comprises a photovoltaic control and inversion integrated machine and a storage battery;
the heat recovery unit comprises a hot fluid tank, a heat load and a cold fluid tank;
the control and monitoring unit comprises a first thermodynamic cycle controller, a second thermodynamic cycle controller and an operation management center;
the outlet of the photovoltaic photo-thermal unit array is connected with the inlet of the hot fluid box, the outlet of the hot fluid box is connected with the inlet of the cold fluid box through a second thermal power cycle controller and a thermal load, and the outlet of the cold fluid box is connected with the inlet of the photovoltaic photo-thermal unit array through a first thermal power cycle controller;
the photovoltaic photo-thermal unit array, the photovoltaic control inversion all-in-one machine, the storage battery, the hot fluid box, the second thermal cycle controller, the thermal load, the cold fluid box and the first thermal cycle controller are all connected with the operation management center.
Further, the photovoltaic photo-thermal unit array comprises a plurality of photovoltaic photo-thermal units, and each photovoltaic photo-thermal unit comprises a photovoltaic photo-thermal assembly, a support and a base; set up on the support on the base, photovoltaic light and heat subassembly is installed on the support.
Further, the photovoltaic photo-thermal component of the photovoltaic photo-thermal unit array is connected with the photovoltaic control inversion all-in-one machine.
Further, the storage battery is a lithium iron phosphate battery.
Furthermore, the photovoltaic control and inversion all-in-one machine is also connected with an electric load, and the electric load is connected with the operation management center.
Furthermore, the hot fluid case is the same with cold fluid case structure, and the hot fluid case includes stainless steel intermediate layer box and insulation material, and the insulation material sets up at stainless steel intermediate layer box surface.
Furthermore, the operation management center is a porphyry data acquisition module.
Further, the first thermodynamic cycle controller and the second thermodynamic cycle controller are water pumps.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a set up the operation management center, can control photovoltaic light and heat unit array, photovoltaic control contravariant all-in-one, battery, hot-fluid case, second heating power circulation controller, heat load, cold fluid case and first heating power circulation controller, can realize the solar thermal energy cogeneration in remote area to overcome and adopted the major network power supply technology degree of difficulty higher, marginal cost is showing the problem that increases. The utility model discloses make photovoltaic light heat energy source microgrid no longer need rely on main electric wire netting for its control and monitoring unit, heating power circulation controller energy supply, and rely on self electricity production energy supply completely.
The utility model discloses photovoltaic photo-thermal energy microgrid can realize the circulation of hot-fluid to cold fluid when using to operation management center controls, has realized photovoltaic light and heat unit array (photovoltaic light and heat system), and the coupling of accumulate unit and heat recovery unit matches, has solved the poor problem of solar thermal energy cogeneration stability that leads to because solar energy resource volatility is big, the utility model discloses a photovoltaic light and heat system's off-grid operation makes it break away from the reliance to main power grid, through combining together accumulate technique, heat-retaining technique and photovoltaic light and heat technique, has improved the stability of solar thermal energy cogeneration, is favorable to further development and the popularization of solar energy utilization technique.
Drawings
Fig. 1 is the structure diagram of the photovoltaic photo-thermal energy microgrid of the present invention.
Wherein: the photovoltaic solar heat power generation system comprises a photovoltaic solar heat unit array 1, a photovoltaic solar heat assembly 2, a support 3, a base 4, a photovoltaic control and inversion all-in-one machine 5, a storage battery 6, a cable 7, a hot fluid box 8, a cold fluid box 9, a fluid pipeline 10, a first thermal power circulation controller 11, an operation management center 12, a signal line 13, an electric load 14, a thermal load 15 and a second thermal power circulation controller 16.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the utility model provides a photovoltaic light and heat energy source microgrid, including photovoltaic light and heat unit array 1, accumulate unit, heat-retaining unit and control and monitoring unit.
The photovoltaic photo-thermal unit array 1 comprises a plurality of photovoltaic photo-thermal units, and each photovoltaic photo-thermal unit comprises a photovoltaic photo-thermal assembly 2, a bracket 3 and a base 4; the support 3 is provided with a base 4, the photovoltaic photo-thermal assembly 2 is arranged on the support 3, and the photovoltaic photo-thermal unit array 1 is formed by arranging two photovoltaic photo-thermal units in parallel in a mode of figure 1.
The electricity storage unit comprises a photovoltaic control and inversion integrated machine 5, a storage battery 6 (lithium iron phosphate battery) and a cable 7. The photovoltaic control inversion all-in-one machine 5 is connected with the storage battery 6 through a cable 7. In addition, the photovoltaic and photo-thermal assembly 2 of the photovoltaic and photo-thermal unit array 1 is connected with the photovoltaic control and inversion all-in-one machine 5 through a cable 7.
The photovoltaic control and inversion all-in-one machine 5 is also connected with an electric load 14 through a cable 7.
The heat recovery unit comprises a hot fluid tank 8, a cold fluid tank 9 and a fluid conduit 10. The hot fluid tank 8 comprises a stainless steel sandwich tank body and insulation material. The heat insulation material is arranged on the outer surface of the stainless steel interlayer box body. The cold fluid tank 9 comprises a stainless steel sandwich tank body and a heat insulating material. The heat insulation material is arranged on the outer surface of the stainless steel interlayer box body. The utility model provides a thermal insulation material is the aluminium foil, and the surface is rubber sponge material.
The control and monitoring unit includes a first thermodynamic cycle controller 11, a second thermodynamic cycle controller 16, an operation management center 12, and a signal line 13.
The outlet of the photovoltaic photo-thermal component 2 is connected with the inlet of a hot fluid box 8 through a fluid pipeline 10, the outlet of the hot fluid box 8 is connected with a heat load 15 through a second thermal power cycle controller 16, the heat load 15 is connected with the inlet of a cold fluid box 9 through the fluid pipeline 10, and the outlet of the cold fluid box 9 is connected with the inlet of the photovoltaic photo-thermal component 2 through a first thermal power cycle controller 11.
The photovoltaic photo-thermal component 2, the photovoltaic control and inversion all-in-one machine 5, the electric load 14, the hot fluid box 8, the second thermal cycle controller 16, the hot load 15, the cold fluid box 9 and the first thermal cycle controller 11 are all connected with the operation management center 12 through signal lines 13.
The operation management center 12 is a porphyria data acquisition module, the fluid is water, and the first thermodynamic cycle controller 11 and the second thermodynamic cycle controller 16 are water pumps.
An energy storage configuration method for a photovoltaic light and heat energy source microgrid comprises the following steps:
1) determining the daylighting area A and the output power of the photovoltaic photo-thermal unit array 1: p output ＝P m *A。
Wherein, P output Standard output electric power for the photovoltaic photo-thermal unit array; p m The standard output electric power of the photovoltaic photo-thermal unit in unit daylighting area is shown, and A is the daylighting area.
2) And determining the current and the voltage of the photovoltaic photo-thermal unit array 1 under the standard conditions according to the series-parallel connection mode of the photovoltaic photo-thermal units.
3) And a photovoltaic control and inversion all-in-one machine 5 matched with the photovoltaic photo-thermal unit array 1 is configured, and the maximum input current, voltage and power of the photovoltaic control and inversion all-in-one machine 5 are equal to or more than the standard input current, voltage and power of the photovoltaic photo-thermal unit array 1.
4) Calculating the power consumption of the photovoltaic photo-thermal system in single-day operation: q Single day operation ＝Q Single-day thermal cycle controller 1 +Q Single-day operation management center +Q Single-day thermal cycle controller 2 ＝P Thermal cycle controller 1 *T Single day heat production cycle time +P Operation management center *T Single day operation management +P Thermal cycle controller 2 *T Daily heat cycle time 。
Wherein Q is Single day operation For power consumption, Q, of a photovoltaic photo-thermal system operating on a single day Single day heat cycleRing controller 1 Power consumption, Q, for single-day operation of the first thermodynamic cycle controller Single-day operation management center Power consumption for operating the management center on a single day; q Single-day thermal cycle control unit 2 Power consumption for single-day operation of the second thermodynamic cycle controller; p Thermal cycle control unit Operating power for the first thermodynamic cycle controller; t is a unit of Single day heat production cycle time The heat production cycle time within a single day; p Operation management center Operating power for operating the management center; t is Single day operation management The management center is operated for a single day; p Thermal cycle controller Operating power for the second thermodynamic cycle controller; t is Daily heat time Thermal cycling time for a single day; t is Single day heat production cycle time The heat production cycle time within a single day.
5) The capacity of the battery 6 needs to satisfy the following aspects: the capacity of the storage battery 6 is larger than the continuous operation energy consumption of the system in the longest continuous rainy weather period of the use place: q Storage battery ＞Q Single day operation *N+Q Predicting single-day electrical load energy consumption *N。
Wherein Q is Storage battery Is the battery capacity; q Single day operation The power consumption of the photovoltaic photo-thermal system in single-day operation; q Predicting single-day electrical load energy consumption Average single-day electric load energy consumption for the user side; n is the longest continuous rainy day of the using place.
6) Calculating the converted consumption of the hot fluid of the heat load 15, calculating the temperature of the hot fluid according to 60 ℃, and keeping the temperature of the hot fluid tank 8 and the cold fluid tank 9 at 60 ℃ for two days until the temperature drops to no more than 15 ℃.
7) The capacity of the hot fluid tank 8 is set to be greater than the hot water consumption of the longest continuous rainy weather period of the place of use. Heat storage capacity Q of water tank Heat generation ＝C m (45-20)M>Q Heat demand per day (ii) a N is the longest continuous rainy day of the using place.
Wherein Q is Heat generation For storing heat in the hot water tank, C m Is the specific heat capacity of water; m is the maximum water storage quality of the heat storage water tank; q Heat requirement per day The single day heat demand is predicted for the place of use.
The use method of the photovoltaic photo-thermal energy microgrid comprises the following steps: sunlight generates electric energy and heat energy through the photovoltaic photo-thermal unit array 1, the electric energy passes through the cable 7, passes through the photovoltaic control inversion all-in-one machine 5, and is stored in the storage battery 6 through the cable 7; the electric energy in the storage battery 6 passes through the photovoltaic control inversion all-in-one machine 5 through the cable 7 to output alternating current, and is directly supplied to the first thermodynamic cycle controller 11, the second thermodynamic cycle controller 16, the operation management center 12 and other electric loads 14 for operation and use through the cable 7. The thermal energy is carried by a hot fluid, under the drive of the first thermal cycle controller 11 and the second thermal cycle controller 16, the cold fluid passes through the photovoltaic photo-thermal unit array 1, absorbs the thermal energy generated by the photovoltaic photo-thermal unit array to be converted into the hot fluid, the hot fluid enters the hot fluid tank 8 through the fluid pipeline 10, the hot fluid in the hot fluid tank 8 passes through the heat load 15 again to supply energy to the heat load 15 through heat exchange or direct heat dissipation, and is converted into a cold fluid, and the cold fluid then enters the cold fluid tank 9 through the fluid pipeline 10, so that the fluid is recycled.
The operation management center 12 controls and debugs the operations of the photovoltaic and photothermal unit array 1, the heat recovery unit, the electricity storage unit and the control and monitoring unit by collecting and analyzing meteorological data, the photovoltaic and photothermal unit array 1 operation data, the heat recovery unit operation data, the electricity storage unit operation data and the operation instructions of the user.
The utility model discloses a photovoltaic control contravariant all-in-one 5 and battery 6 can realize the automatic storage that photovoltaic light and heat device produced electricity to can become the alternating current with the electric energy reversal of storage, for photovoltaic light and heat system operation energy supply, realized the operation of leaving the net of photovoltaic light and heat system, make it break away from the reliance to main electric wire netting, expanded the range of application.
The utility model discloses combine together accumulate technique, heat-retaining technique and photovoltaic light and heat technique, improved the stability of solar thermal energy cogeneration, be favorable to further development and the popularization of solar energy utilization technique.
Claims (8)
1. The photovoltaic light and heat energy source microgrid is characterized by comprising a photovoltaic photo-thermal unit array (1), an electricity storage unit, a heat recovery unit and a control and monitoring unit;
the power storage unit comprises a photovoltaic control and inversion integrated machine (5) and a storage battery (6);
the heat recovery unit comprises a hot fluid tank (8), a heat load (15) and a cold fluid tank (9);
the control and monitoring unit comprises a first thermodynamic cycle controller (11), a second thermodynamic cycle controller (16) and an operation management center (12);
the outlet of the photovoltaic photo-thermal unit array (1) is connected with the inlet of a hot fluid box (8), the outlet of the hot fluid box (8) is connected with the inlet of a cold fluid box (9) through a second thermal power cycle controller (16) and a thermal load (15), and the outlet of the cold fluid box (9) is connected with the inlet of the photovoltaic photo-thermal unit array (1) through a first thermal power cycle controller (11);
the photovoltaic photo-thermal unit array (1), the photovoltaic control inversion all-in-one machine (5), the storage battery (6), the hot fluid box (8), the second thermal cycle controller (16), the heat load (15), the cold fluid box (9) and the first thermal cycle controller (11) are connected with the operation management center (12).
2. The photovoltaic photo-thermal energy source microgrid of claim 1, characterized in that the photovoltaic photo-thermal unit array (1) comprises a plurality of photovoltaic photo-thermal units, and the photovoltaic photo-thermal units comprise photovoltaic photo-thermal assemblies (2), supports (3) and bases (4); the support (3) is arranged on the base (4), and the photovoltaic photo-thermal assembly (2) is arranged on the support (3).
3. The photovoltaic light and heat energy source microgrid according to claim 2 is characterized in that a photovoltaic photo-thermal assembly (2) of a photovoltaic photo-thermal unit array (1) is connected with a photovoltaic control inversion all-in-one machine (5).
4. The photovoltaic photo-thermal energy source microgrid according to claim 1, characterized in that the storage battery (6) is a lithium iron phosphate battery.
5. The photovoltaic light and heat energy source microgrid according to claim 1 is characterized in that the photovoltaic control inversion all-in-one machine (5) is further connected with an electric load (14), and the electric load (14) is connected with the operation management center (12).
6. The photovoltaic light and heat energy source microgrid of claim 1, characterized in that the hot fluid box (8) and the cold fluid box (9) are identical in structure, the hot fluid box (8) comprises a stainless steel interlayer box body and a heat insulation material, and the heat insulation material is arranged on the outer surface of the stainless steel interlayer box body.
7. The photovoltaic light and heat energy source microgrid according to claim 1, characterized in that the operation management center (12) is a porphyry data acquisition module.
8. The photovoltaic photo-thermal energy source microgrid of claim 1, characterized in that the first thermal cycle controller (11) and the second thermal cycle controller (16) are water pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220564288.5U CN217182969U (en) | 2022-03-15 | 2022-03-15 | Photovoltaic light heat energy source microgrid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220564288.5U CN217182969U (en) | 2022-03-15 | 2022-03-15 | Photovoltaic light heat energy source microgrid |
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| Publication Number | Publication Date |
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| CN217182969U true CN217182969U (en) | 2022-08-12 |
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| CN202220564288.5U Expired - Fee Related CN217182969U (en) | 2022-03-15 | 2022-03-15 | Photovoltaic light heat energy source microgrid |
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- 2022-03-15 CN CN202220564288.5U patent/CN217182969U/en not_active Expired - Fee Related
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