CN215601046U - Photovoltaic power generation system of waste incineration power plant - Google Patents

Photovoltaic power generation system of waste incineration power plant Download PDF

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CN215601046U
CN215601046U CN202121411478.5U CN202121411478U CN215601046U CN 215601046 U CN215601046 U CN 215601046U CN 202121411478 U CN202121411478 U CN 202121411478U CN 215601046 U CN215601046 U CN 215601046U
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grid
alternating current
photovoltaic
power generation
inverter
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谢昭勉
蔡增蛟
张堃
祁渤
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Guangzhou Huantou Huacheng Environmental Protection Energy Co ltd
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Guangzhou Huantou Huacheng Environmental Protection Energy Co ltd
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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
    • Y02B10/10—Photovoltaic [PV]
    • 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
    • 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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  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The utility model discloses a photovoltaic power generation system of a waste incineration power plant, which comprises a solar battery pack, a grid-connected inverter, an alternating current header box and a photovoltaic grid-connected metering cabinet, wherein the solar battery pack is mainly installed by a pure purlin bracket, the grid-connected inverter adopts a string inverter, a block power generation and centralized grid-connected mode is applied, the alternating current header box adopts a high-quality steel plate product of a domestic and foreign well-known manufacturer, the solar battery pack is used for transmitting horizontal plane solar radiation to the grid-connected inverter to convert direct current into alternating current, the converted alternating current flows to the alternating current header box, the alternating current header box collects the alternating current to the photovoltaic grid-connected metering cabinet to carry out analog calculation to obtain array surface solar radiation data, and then the generated energy is calculated by combining system installation capacity and system total efficiency, the utility model can not cause system fluctuation and can be used by itself, the plant power consumption rate is reduced, and the internet electricity quantity is improved.

Description

Photovoltaic power generation system of waste incineration power plant
Technical Field
The utility model relates to a power generation system, in particular to a photovoltaic power generation system of a waste incineration power plant.
Background
The photovoltaic power generation is used as a natural resource of new energy, harmlessness and resource, so that the photovoltaic power generation is combined with the power grid and gradually popularized in each town. The utility model relates to a photovoltaic power generation system of a waste incineration power plant, which is different from a traditional thermal power plant, wherein the waste incineration power plant is located in the suburb, the periphery of the waste incineration power plant is not shielded by high buildings, the waste incineration power plant collects solar energy in the open space, and the technology of converting the solar energy into electric energy is more and more mature.
Patent numbers: CN108039866A discloses a photovoltaic power generation system, this design including photovoltaic module, move light subassembly and thermal-insulated euphotic layer, will move the light subassembly and set up the one side at photovoltaic module's sunny side place, thermal-insulated euphotic layer sets up the one side at photovoltaic module's sunny side place. In the operation process of a photovoltaic power generation system, partial sunlight can directly irradiate on a photovoltaic module, the photovoltaic module utilizes received sunlight to generate power, the light energy is converted into electric energy, meanwhile, when the sunlight passes through a light moving module, the sunlight is refracted, the propagation path of reflected light is deviated, the deviated light can be covered on the photovoltaic module, in addition, the light irradiating on the photovoltaic module is increased, due to the arrangement of a heat insulation light transmission layer, the heat of the sunlight is blocked, the heat transmitted to the photovoltaic module is less, the photovoltaic voltage of the photovoltaic module is reduced, and the power generation efficiency is greatly improved. Under photovoltaic module's the same condition of sunny side promptly, the photovoltaic module who moves the light subassembly has been add, it is more to the light that receives on the sunny side, light through moving the light subassembly offset has still been increased on the basis of receiving original light, the light that receives on the photovoltaic module increases, because photovoltaic module generating efficiency is directly proportional with the luminance of light, the light reinforcing on the photovoltaic module, luminance improves, and then the promotion of photovoltaic module's photoelectric conversion efficiency has been realized, and the cost is reduced, and is suitable for being generalized to use.
However, the above patents have some disadvantages: 1. the design can not cause system fluctuation and can automatically use the power, the plant power consumption rate is reduced, and the internet electricity quantity is improved.
SUMMERY OF THE UTILITY MODEL
The photovoltaic power generation system of the waste incineration power plant provided by the utility model has the advantages of simple structure and novel design, and can effectively solve the problems in the background technology.
The specific technical scheme provided by the utility model is as follows:
the utility model provides a photovoltaic power generation system of a waste incineration power plant, which comprises a solar battery pack, a grid-connected inverter, an alternating current combiner box and a photovoltaic grid-connected metering cabinet, wherein the solar battery pack is mainly installed by adopting a pure purlin bracket, the grid-connected inverter adopts a string-type inverter, a block power generation and centralized grid-connected mode is applied, the alternating current combiner box adopts a high-quality steel plate product of a domestic and foreign well-known manufacturer, the solar battery pack is used for transmitting horizontal plane solar radiation to the grid-connected inverter to convert direct current into alternating current, the converted alternating current flows to the alternating current combiner box, the alternating current combiner box collects alternating current to the photovoltaic grid-connected metering cabinet to carry out analog calculation to obtain array surface solar radiation data, and then the generated energy is calculated by combining system installation capacity and system total efficiency.
Optionally, the solar cell set passes PV-F-1 x 4mm2The photovoltaic cable is connected with a grid-connected inverter, and the grid-connected inverter converts direct current into alternating current.
Optionally, the outlet ac cable of the grid-connected inverter is ZRC-YJV-0.6/1kV-3 × 35+2 × 16mm2Is connected to the ac combiner box 3.
Optionally, the alternating current combiner box adopts ZRC-YJV-0.6/1kV-3 × 150+2 × 70mm2And the alternating current cable is connected with the photovoltaic grid-connected metering cabinet.
The utility model has the following beneficial effects:
the utility model realizes the 'spontaneous self-use and residual electricity on-line' mode of the waste incineration power plant, and converts solar energy into electric energy to supply power for power utilization in the plant, thereby realizing energy conservation and improving on-line electric quantity, and the array efficiency eta 1 of the photovoltaic module is as follows: the ratio of the actual DC output power to the nominal power of the photovoltaic module array at 1000W/m2 solar radiation intensity. Losses of the photovoltaic module array during energy conversion and transmission include: component mismatch losses, surface dust shielding losses, unavailable solar radiation losses, temperature effects, and dc line losses, among others. By integrating all the factors, eta 1 is 86%, the solar battery pack 1 is used for transmitting the horizontal plane solar radiation to the grid-connected inverter 2 to convert direct current into alternating current, the converted alternating current flows to the alternating current header box 3, the alternating current header box 3 is used for reducing connecting lines between the photovoltaic grid-connected inverter 2 and the photovoltaic grid-connected metering cabinet 4, maintenance is convenient, and reliability and practicability of the system are improved. The alternating current combiner box 3 collects alternating current to the photovoltaic grid-connected metering cabinet 4 to carry out analog calculation to obtain array surface solar radiation data, and the generated energy can be calculated by combining system installation capacity and system total efficiency, so that the photovoltaic battery pack 1 can not cause system fluctuation and can automatically use by itself by converting solar energy into a computer to access the system through 400V, the plant power consumption rate is reduced, the online electric quantity is improved, and the problem in the background technology can be effectively solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a photovoltaic power generation system of a waste incineration power plant according to an embodiment of the present invention.
In the figure: 1. a solar cell array; 2. a grid-connected inverter; 3. an AC combiner box; 4. grid-connected PV measures cabinet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A photovoltaic power generation system of a waste incineration power plant according to an embodiment of the present invention will be described in detail with reference to fig. 1.
Referring to fig. 1, the photovoltaic power generation system of a waste incineration power plant provided by the utility model comprises a solar battery pack 1, a grid-connected inverter 2, an alternating current combiner box 3 and a photovoltaic grid-connected metering cabinet 4, the solar battery pack 1 is mainly installed by a pure purlin bracket, the grid-connected inverter 2 adopts a string-type inverter, and by adopting a block power generation and centralized grid-connected mode, the alternating current header box 3 adopts high-quality steel plate products of famous factories at home and abroad, the solar battery pack 1 converts direct current into alternating current by transmitting horizontal plane solar radiation to the grid-connected inverter 2, the converted alternating current flows to an alternating current confluence box 3, the alternating current confluence box 3 gathers the alternating current to a photovoltaic grid-connected metering cabinet 4 for analog calculation to obtain array surface solar radiation data, and the generated energy is calculated by combining system installation capacity and system total efficiency.
Optionally, the solar cell set 1 passes PV-F-1 x 4mm2The photovoltaic cable is connected with the grid-connected inverter 2, and the grid-connected inverter 2 converts direct current into alternating current.
Optionally, the grid-connected inverter 2 outlet alternating current cable adopts a ZRC-YJV-0.6/1kV-3 × 35+2 × 16mm2Is connected to the ac combiner box 3.
Optionally, the alternating current combiner box 3 adopts ZRC-YJV-0.6/1kV-3 × 150+2 × 70mm2The alternating current cable is connected with the photovoltaic grid-connected metering cabinet 4, the alternating current header box 3 adopts a high-quality steel plate product of a well-known factory at home and abroad, the box body structure is moisture-proof, ultraviolet-resistant, ageing-resistant and hard in rigidity, and the heat dissipation is easy
This embodiment provides a waste incineration power plant photovoltaic power generation system, includes: the system comprises a solar battery pack 1, a grid-connected inverter 2, an alternating current combiner box 3, a photovoltaic grid-connected metering box 4 and the like; compared with the existing operation mode, the solar energy self-utilization and surplus electricity online mode of the waste incineration power plant is realized, solar energy is converted into electric energy to supply power for the power plant, energy conservation is realized, the online electric quantity is improved, and the array efficiency eta 1 of the photovoltaic module is as follows: the ratio of the actual DC output power to the nominal power of the photovoltaic module array at 1000W/m2 solar radiation intensity. Losses of the photovoltaic module array during energy conversion and transmission include: component mismatch losses, surface dust shielding losses, unavailable solar radiation losses, temperature effects, and dc line losses, among others. Integrating all the factors, and taking eta 1 as 86%, wherein in the photovoltaic power generation system, the photovoltaic power generation system is electrically isolated from a public power grid through a transformer and the like when being connected with the public power grid, so that an obvious demarcation point between the photovoltaic power generation system and a municipal power supply line of the public power grid is formed; a corresponding grid-connected protection device is arranged, so that once the photovoltaic power generation system and the public power grid are abnormal or have faults, the photovoltaic system can be automatically separated from the power grid; the method is characterized in that factors such as the scale of a photovoltaic power generation system, the power transmission distance, the position and the action in a power supply system, the structure of a near area distribution network, the original voltage level configuration and the like are comprehensively considered, the selection of the solar battery assembly is comprehensively considered in the aspects of the industrial situation, the technical maturity, the operation reliability, the future technical development trend and the like of various solar battery assemblies which are commercially produced at present, the actual situation, the natural environment, the construction condition and the traffic condition of a fifth-resource thermal power plant in Guangzhou are combined, the type of the solar battery assembly suitable for being used by a string type large grid-connected photovoltaic power station is selected through technical and economic comprehensive comparison, the grid-connected inverter 2 adopts a scheme of block power generation and centralized grid connection, the string type inversion equipment is preferably selected from the aspects of engineering operation, maintenance and power station modularization design, the arrangement of a power generation field is adapted, the harmonic current content of the selected grid-connected inverter 2 is less than 3 percent, the requirements of technical provisions for connecting a photovoltaic power station of national grid company to a power grid are met, the bottom of an alternating current combiner box 3 is led in and out, the alternating current combiner box is mounted in an outdoor bracket mode, the box body design meets good natural heat dissipation requirements, a fan and other rotary electrical elements cannot be additionally mounted in the box body, the box body of the alternating current combiner box 3 adopts a cold-rolled steel plate/aluminum plate with the effective thickness not less than 1.2mm, and surface zinc-rich primer, intermediate paint and high-weather-resistance polyester finish or fluorocarbon finish; the effective thickness of the coating is not less than 30um, high-quality steel plate products of home and abroad famous factories must be adopted, and the box body structure is moisture-proof, ultraviolet-resistant, ageing-resistant and easy to dissipate heat. The alternating current combiner box has enough mechanical strength and rigidity, can bear dynamic and thermal stability impact generated by normal work, short circuit and lightning stroke of an installed element, does not deform or influence the performance of equipment due to transportation and other conditions, and has the conversion efficiency eta 2 of the grid-connected inverter 2: the ratio of the ac power output by the inverter to the dc input power. The loss in the power conversion by the grid-connected inverter 2 includes a loss in the conversion by the grid-connected inverter 2, a loss in the Maximum Power Point Tracking (MPPT) accuracy, and the like. For the grid-connected inverter 2 to be adopted in this project, η 2 is 97%, and the maximum operating voltage of the dc-side system is about 1000V, so that a wire with good weather resistance and withstand voltage of 1000V is used for the module string, and a cross-linked polyolefin wire is used. The photovoltaic string-to-string inverter adopts PV-F-1 x 4mm2 photovoltaic cables. The selection of the alternating current cable of the photovoltaic grid-connected power generation system must meet the requirements of GB50217-2018 'design Specification for electric power engineering cables'. The engineering power and control cable is made of flame-retardant cables, the power cable is made of a cross-linked polyethylene cable, the control cable is made of a shielding cable, the output power of the photovoltaic module can be attenuated along with time when the photovoltaic module is used in illumination and a conventional atmospheric environment, the attenuation of the output power of the photovoltaic module is required to be calculated according to 20% of the performance of a polycrystalline silicon solar cell module to be adopted in the project, the photovoltaic module of the project is mainly installed by a pure purlin bracket, the solar radiation data on the surface of an array is obtained through simulation calculation through horizontal plane solar radiation data, and the generated energy can be calculated by combining system installation capacity and system total efficiency.
It can be understood that the photovoltaic power generation system converts solar energy into a computer and accesses the computer to the system through 400V, so that the system cannot fluctuate, can automatically use the computer, reduces the plant power consumption rate and improves the internet electricity quantity.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the utility model. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims (4)

1. A photovoltaic power generation system of a waste incineration power plant comprises a solar battery pack (1), a grid-connected inverter (2), an alternating current combiner box (3) and a photovoltaic grid-connected metering cabinet (4), it is characterized in that the solar battery pack (1) is mainly installed by pure purlin brackets, the grid-connected inverter (2) adopts a string-type inverter, and adopts a block power generation and centralized grid-connected mode, the alternating current header box (3) adopts high-quality steel plate products of home and abroad famous factories, the solar battery pack (1) converts direct current into alternating current by transmitting horizontal plane solar radiation to the grid-connected inverter (2), the converted alternating current flows to an alternating current confluence box (3), the alternating current confluence box (3) gathers the alternating current to a photovoltaic grid-connected metering cabinet (4) to carry out analog calculation to obtain array surface solar radiation data, and the generated energy is calculated by combining system installation capacity and system total efficiency.
2. A waste incineration power plant photovoltaic power generation system according to claim 1, characterised in that the solar cell group (1) passes PV-F-1 x 4mm2The photovoltaic cable is connected with the grid-connected inverter (2), and the grid-connected inverter (2) converts direct current into alternating current.
3. The photovoltaic power generation system of a waste incineration power plant as claimed in claim 1, characterized in that the outlet ac cable of the grid-connected inverter (2) adopts a ZRC-YJV-0.6/1kV-3 x 35+2 x 16mm2Is connected with the AC combiner box (3).
4. A photovoltaic power generation system of a refuse burning power plant according to claim 1, characterized in that the ac combiner box (3) adopts zr c-YJV-0.6/1kV-3 x 150+2 x 70mm2The alternating current cable is connected with the photovoltaic grid-connected metering cabinet (4).
CN202121411478.5U 2021-06-24 2021-06-24 Photovoltaic power generation system of waste incineration power plant Active CN215601046U (en)

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CN202121411478.5U CN215601046U (en) 2021-06-24 2021-06-24 Photovoltaic power generation system of waste incineration power plant

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Application Number Priority Date Filing Date Title
CN202121411478.5U CN215601046U (en) 2021-06-24 2021-06-24 Photovoltaic power generation system of waste incineration power plant

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