CN106130464A - The decision method that a kind of photovoltaic power station component cleans - Google Patents
The decision method that a kind of photovoltaic power station component cleans Download PDFInfo
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- CN106130464A CN106130464A CN201610637400.2A CN201610637400A CN106130464A CN 106130464 A CN106130464 A CN 106130464A CN 201610637400 A CN201610637400 A CN 201610637400A CN 106130464 A CN106130464 A CN 106130464A
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- Prior art keywords
- assembly
- power station
- cleans
- decrease
- decision method
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010248 power generation Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 230000003203 everyday effect Effects 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 8
- 230000002354 daily effect Effects 0.000 claims description 4
- 238000000205 computational method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000013139 quantization Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
-
- 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
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- Control Of Electrical Variables (AREA)
Abstract
The decision method that a kind of photovoltaic power station component that the present invention relates to cleans, it is characterised in that it comprises the steps: step one: computation module decrease of power generation speed B；Taking the assembly of two groups of identical operating modes of identical parameters, wherein the first assembly cleans every day, and the second assembly only cleans when cleaning power station assembly, records the parameter that can embody assembly pollution level of two groups of assemblies every day simultaneously, calculates B；Step 2: calculate power station decrease of power generation value X；In T time, power station total revenue is Y=S W=(AT AXT/2) m TBn/X；Work as X=(2Bn/Am)1/2Time Y obtain maximum, i.e. power station decrease of power generation be (2Bn/Am)1/2Shi Jinhang power station is cleaned, power station integrated Income Maximum.Assembly pollution level is judged to achieve quantization by the present invention, it is simple to analyzes efficiency of plant and judges whether to need to clean, having low cost, it is simple to operation, test advantage directly and accurately.
Description
Technical field
The present invention relates to the decision method that a kind of photovoltaic power station component cleans.
Background technology
As the photovoltaic plant of green energy resource, obtain increasing application.The quantity of photovoltaic plant and scale are the most not
Disconnected increase.Be placed in field or roof for a long time due to photovoltaic power station component, solar components surface is easy to stain dust, thus drops
The light transmittance of low assembly glass, affects the biggest on the generating efficiency in power station.The partial occlusion thing of assembly surface covers and can cause
The hot spot effect of assembly, reduces generating efficiency, even burns out assembly.Keep the surface cleaning of assembly, it is ensured that assembly surface
Glass there is higher light transmittance, improve the generating efficiency of assembly.Therefore, for photovoltaic plant, the cleaning of assembly is one
The task that item is frequent and requisite.Determination component stains degree mainly by operation maintenance personnel visual observations, personnel's estimation at present
Differing greatly, for determination component, whether this cleaning lacks quantitative basis.Clean and cause cleaning too early costly, increase O&M
Cost, cleans later, affects generated energy and affects power station income.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that judge to achieve quantization to assembly pollution level, it is simple to point
Analysis efficiency of plant and the decision method judging whether that a kind of photovoltaic power station component that needs clean cleans.
The object of the present invention is achieved like this:
The decision method that a kind of photovoltaic power station component cleans, it is characterised in that it comprises the steps:
Step one: computation module decrease of power generation speed B
Taking the assembly of two groups of identical operating modes of identical parameters, wherein the first assembly cleans every day, and the second assembly is only cleaning power station group
Clean during part, record the parameter that can embody assembly pollution level of two groups of assemblies, and record every day simultaneously, the first assembly
Be recorded as W1, W2, W3 ..., the second assembly be recorded as U1, U2, U3 ...；
The computational methods of assembly decrease of power generation speed B are: V1=U1/W1-U2/W2, V2=U2/W2-U3/W3, V3=U3/
W3- U4/W4……；B is V1, V2, V3 ... meansigma methods；.
Step 2: calculate power station decrease of power generation value X
Assume that the average daily generation in the pollution-free power station of assembly is A, cleaning assembly when power station decrease of power generation is X；Assume to sell electricity
The electricity charge are m unit/degree, clean power station assembly be n unit/time, in T time, power station gene-ration revenue is S=(AT-AXT/2) m, cleans electricity
The expense of station is W=TBn/X, and in T time, power station total revenue is Y=S-W=(AT-AXT/2) m-TBn/X；
According to above formula, work as X=(2Bn/Am)1/2Time Y obtain maximum, i.e. the power station generating efficiency that causes because assembly pollutes
It is reduced to (2Bn/Am)1/2Shi Jinhang power station is cleaned, power station integrated Income Maximum.
2, the decision method that a kind of photovoltaic power station component according to claim 1 cleans, it is characterised in that first group
The cell panel setting angle of part and the second assembly is identical with photovoltaic plant square formation angle.
3, the decision method that a kind of photovoltaic power station component according to claim 1 cleans, it is characterised in that described energy
The parameter enough embodying assembly pollution level selects output or the short circuit current of assembly.
Compared with prior art, the invention has the beneficial effects as follows:
Assembly pollution level is judged to achieve quantization by the decision method that a kind of photovoltaic power station component of the present invention cleans, it is simple to analyze
Efficiency of plant and judging whether needs to clean, and has low cost, it is simple to operation, tests advantage directly and accurately.
Accompanying drawing explanation
Fig. 1 is that the assembly generated energy of the present invention changes over schematic diagram.
Detailed description of the invention
Seeing Fig. 1, the decision method that a kind of photovoltaic power station component that the present invention relates to cleans, it comprises the steps:
Step one: computation module decrease of power generation speed B
The contaminated assembly generating efficiency that can reduce of assembly, assembly decrease of power generation speed B calculates as follows:
Take the assembly of two groups of identical operating modes of identical parameters, be mounted side by side on support, cell panel setting angle and photovoltaic plant side
Battle array angle is identical.
Two groups of above-mentioned assemblies, wherein the first assembly cleans every day, and the second assembly only cleans when cleaning power station assembly.
Record every day simultaneously the output of two groups of assemblies, short circuit current or other can embody assembly pollution level
Parameter, and record, the record time is a power station cleaning frequency, the first assembly be recorded as W1, W2, W3 ..., second
Assembly be recorded as U1, U2, U3 ....
The computational methods of assembly decrease of power generation speed B are: V1=U1/W1-U2/W2, V2=U2/W2-U3/W3, V3=
U3/W3- U4/W4…….B is V1, V2, V3 ... meansigma methods.
The power station decrease of power generation of the s days is X=U1/W1-Us/ Ws.
Step 2: calculate power station decrease of power generation value X
Assuming that the average daily generation in the pollution-free power station of assembly is A, average daily generation A calculates cycle statistics generated energy according to one
Mean value calculation；
The s days, cleaning assembly when power station decrease of power generation is X, generated energy changed over as shown in Figure 1.
Assuming to sell the electricity electricity charge is m unit/degree, clean power station assembly be n unit/time, in T time, power station gene-ration revenue is S=
(AT-AXT/2) m, cleaning power station expense is W=TBn/X, and in T time, power station total revenue is Y=S-W=(AT-AXT/2) m-
TBn/X；
According to above formula, work as X=(2Bn/Am)1/2Time Y obtain maximum, i.e. the power station generating efficiency that causes because assembly pollutes
It is reduced to (2Bn/Am)1/2Shi Jinhang power station is cleaned, power station integrated Income Maximum.
Claims (3)
1. the decision method that a photovoltaic power station component cleans, it is characterised in that it comprises the steps:
Step one: computation module decrease of power generation speed B
Taking the assembly of two groups of identical operating modes of identical parameters, wherein the first assembly cleans every day, and the second assembly is only cleaning power station group
Clean during part, record the parameter that can embody assembly pollution level of two groups of assemblies, and record every day simultaneously, the first assembly
Be recorded as W1, W2, W3 ..., the second assembly be recorded as U1, U2, U3 ...；
The computational methods of assembly decrease of power generation speed B are: V1=U1/W1-U2/W2, V2=U2/W2-U3/W3, V3=U3/
W3- U4/W4……；B is V1, V2, V3 ... meansigma methods；.
Step 2: calculate power station decrease of power generation value X
Assume that the average daily generation in the pollution-free power station of assembly is A, cleaning assembly when power station decrease of power generation is X；Assume to sell electricity
The electricity charge are m unit/degree, clean power station assembly be n unit/time, in T time, power station gene-ration revenue is S=(AT-AXT/2) m, cleans electricity
The expense of station is W=TBn/X, and in T time, power station total revenue is Y=S-W=(AT-AXT/2) m-TBn/X；
According to above formula, work as X=(2Bn/Am)1/2Time Y obtain maximum, i.e. the power station generating efficiency that causes because assembly pollutes
It is reduced to (2Bn/Am)1/2Shi Jinhang power station is cleaned, power station integrated Income Maximum.
A kind of photovoltaic power station component the most according to claim 1 clean decision method, it is characterised in that the first assembly and
The cell panel setting angle of the second assembly is identical with photovoltaic plant square formation angle.
A kind of photovoltaic power station component the most according to claim 1 clean decision method, it is characterised in that described can body
The parameter of existing assembly pollution level selects output or the short circuit current of assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637400.2A CN106130464A (en) | 2016-08-05 | 2016-08-05 | The decision method that a kind of photovoltaic power station component cleans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637400.2A CN106130464A (en) | 2016-08-05 | 2016-08-05 | The decision method that a kind of photovoltaic power station component cleans |
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| CN106130464A true CN106130464A (en) | 2016-11-16 |
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| CN201610637400.2A Pending CN106130464A (en) | 2016-08-05 | 2016-08-05 | The decision method that a kind of photovoltaic power station component cleans |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064165A (en) * | 2017-05-23 | 2017-08-18 | 扬州鸿淏新能源科技有限公司 | A kind of photovoltaic module surface area gray scale on-line measuring device and cleaning method |
| CN107133713A (en) * | 2017-03-13 | 2017-09-05 | 华电电力科学研究院 | A kind of photovoltaic plant intelligently cleans the method for building up of decision system |
| CN112671337A (en) * | 2020-12-29 | 2021-04-16 | 新奥数能科技有限公司 | Method and device for determining whether photovoltaic panel needs to be cleaned |
| CN117634771A (en) * | 2023-10-30 | 2024-03-01 | 中国电力工程顾问集团中南电力设计院有限公司 | Photovoltaic cleaning decision method based on dust monitoring and weather prediction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107133713A (en) * | 2017-03-13 | 2017-09-05 | 华电电力科学研究院 | A kind of photovoltaic plant intelligently cleans the method for building up of decision system |
| CN107064165A (en) * | 2017-05-23 | 2017-08-18 | 扬州鸿淏新能源科技有限公司 | A kind of photovoltaic module surface area gray scale on-line measuring device and cleaning method |
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| CN112671337A (en) * | 2020-12-29 | 2021-04-16 | 新奥数能科技有限公司 | Method and device for determining whether photovoltaic panel needs to be cleaned |
| CN112671337B (en) * | 2020-12-29 | 2024-05-14 | 新奥数能科技有限公司 | Method and device for determining whether photovoltaic panel needs cleaning |
| CN117634771A (en) * | 2023-10-30 | 2024-03-01 | 中国电力工程顾问集团中南电力设计院有限公司 | Photovoltaic cleaning decision method based on dust monitoring and weather prediction |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20191126 Address after: No.20, NanEr lane, Gongnong East Street, Yanhu District, Yuncheng City, Shanxi Province Applicant after: Cao Yuzhou Address before: 214406 Jiangsu city of Wuxi Province Huang Tang Xu Xiake industrial town of Jiangyin city zone (Ring Road side) Applicant before: Jiangyin Hairun Solar Energy Power Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |
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| WD01 | Invention patent application deemed withdrawn after publication |