CN105057262A - Fine cleaning device and method for photovoltaic modules of large photovoltaic power station - Google Patents
Fine cleaning device and method for photovoltaic modules of large photovoltaic power station Download PDFInfo
- Publication number
- CN105057262A CN105057262A CN201510562334.2A CN201510562334A CN105057262A CN 105057262 A CN105057262 A CN 105057262A CN 201510562334 A CN201510562334 A CN 201510562334A CN 105057262 A CN105057262 A CN 105057262A
- Authority
- CN
- China
- Prior art keywords
- photovoltaic module
- photovoltaic
- cleaning
- controller
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 239000010865 sewage Substances 0.000 claims description 28
- 230000005855 radiation Effects 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000003203 everyday effect Effects 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 5
- 230000002000 scavenging effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000013517 stratification Methods 0.000 description 4
- 235000012206 bottled water Nutrition 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- 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
-
- 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
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a fine cleaning device and method for photovoltaic modules of a large photovoltaic power station. The device comprises a water tank. A water outlet of the water tank is connected with a first water conveying pipe. The first water conveying pipe extends to the position above the region where photovoltaic module strings are arranged. The first water conveying pipe is connected with a water pipe for flushing in a leading mode. A water return groove is formed below the photovoltaic modules strings. The water return groove is connected with a waste water recycling pool. The waste water recycling pool is connected with the water tank through a filter. Voltage transmitters and current transmitters on the photovoltaic modules strings are electrically connected with a controller, and the controller is further electrically connected with an environment monitoring instrument. A controllable electromagnetic valve is electrically connected with the controller as well. The invention further comprises the method for cleaning the photovoltaic modules through the fine cleaning device for the photovoltaic modules of the large photovoltaic power station. By means of the fine cleaning device and method, cleaning and dedusting of the photovoltaic modules are facilitated, cleaning efficiency is high, the cleaning time is shortened, water is saved, and the environment is protected beneficially; meanwhile, workload is lowered for later-period operation maintenance personnel, and the operation reliability of the photovoltaic power station is improved.
Description
Technical field
The present invention relates to large-sized photovoltaic power station, particularly relate to a kind of large-sized photovoltaic power station photovoltaic module and to become more meticulous cleaning device and method.
Background technology
Photovoltaic generation is more and more widely used as utilizing a kind of form of solar electrical energy generation.Along with the development of photovoltaic generation industry correlation technique, photovoltaic plant is progressively by application development large-sized photovoltaic power plant application till now exemplary on a small scale in the past.In November, 2014, State Council prints and distributes " energy development Strategic Action Plan (2014-2020) ", and wherein specify that developing goal: to the year two thousand twenty, primary energy total quantity consumed controls about 4,800,000,000 tons of standard coals, and consumption of coal overall control is at about 4,200,000,000 tons.Non-fossil energy accounts for primary energy consumption ratio and weighs 15%.And then, in March, 2015, National Energy Board issues " notice about assigning photovoltaic generation in 2015 and construct and implement scheme ", and within 2015, the newly-increased photovoltaic plant construction scale in the whole nation is formally adjusted to 17.8GW from 15GW during exposure draft.The installation of 17.8GW is equivalent to construction 890 20MW photovoltaic plants, and floor space will reach 1,000 ten thousand mu of soils.
Large-sized photovoltaic power station has that floor space is large, unit are installs little feature.Green, that ecology comparison is fragile country is lacked for one, China, the restriction of land area is subject in development large-sized photovoltaic power station, south, the better area of solar energy resources of China mainly concentrates on China the north, west area, and these factors all govern the building site in large-sized photovoltaic power station.At present, Chinese large-sized photovoltaic plant build the areas such as Inner Mongol, Xinjiang, Tibet in more, and building site multidigit is in the more severe place of the natural conditions such as desert, Gobi desert.Photovoltaic module is as the most basic power generating component of photovoltaic plant, and its generating efficiency is subject to very many-sided impact, such as: the dust stratification situation etc. of the uniformity of photovoltaic module, the environment temperature residing for assembly, assembly surface.The uniformity of assembly is just determined when producing assembly, and the environment temperature residing for assembly is not controlled yet, and assembly surface dust stratification can artificially clean and change.Meanwhile, dust stratification also can bring following impact to assembly: if dust stratification is uneven, may cause assembly local hot spot effect, affect assembly service life.Suitable cleaning is taked to seem particularly important to assembly.
At present, large-scale ground power station many employings periodic cleaning or carry out cleaning program when whole power station generated energy reduces, Main has: 1. regularly or optionally with the cleaning of waterwheel giant; 2. regularly or optionally manually wipe examination.These two kinds of cleaning programs be all large area concentrate dedusting is carried out to photovoltaic module, the first way compares water consumption; The second way is comparatively large for the input of human cost, and artificial dedusting simultaneously may exist potential safety hazard.Mainly there is following shortcoming for the cleaning of current large-sized photovoltaic power station photovoltaic module: how (1) determines suitable scavenging period, periodic cleaning may clean does not need the assembly of dedusting certainly will cause the increase using water and human cost; (2) large area is unified cleaning and is caused water resource waste, increases power station later stage operation expense; (3) utilize the method dedusting of wiping may cause photovoltaic module shrouding material damage, reduce the reliability of photovoltaic module.
Summary of the invention
The technical problem to be solved in the present invention is, overcome the above-mentioned defect that prior art exists, a kind of large-sized photovoltaic power station photovoltaic module is provided to become more meticulous cleaning device and method, be beneficial to determine suitable scavenging period point, improve cleaning efficiency, accomplish the cleaning that becomes more meticulous, improve the utilization rate of water or cleaning fluid, reduce photovoltaic plant later stage operation expense.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of large-sized photovoltaic power station photovoltaic module becomes more meticulous cleaning device, comprise water tank, the delivery port of water tank is connected with one end of the first aqueduct, the other end of the first aqueduct extends above photovoltaic module string region, one end near water outlet of water tank on first aqueduct is provided with conveying pump, the first aqueduct other end draws and is connected to wash water pipe, and the quantity of wash water pipe is identical with the string number of photovoltaic module string, and wash water pipe is equipped with controllable electromagnetic valve; Return flume is provided with below photovoltaic module string, return flume is connected with Sewage treatment pond, Sewage treatment pond is connected with the water inlet of filter by the second aqueduct, the second aqueduct that the water inlet of filter is connected with Sewage treatment pond is provided with back water pump, and the delivery port of filter is connected with water tank; Described photovoltaic module string is provided with voltage transmitter and current transducer, and voltage transmitter and current transducer are all electrically connected with controller, and controller is also electrically connected with environment monitor; Controllable electromagnetic valve is also electrically connected with controller.
Water tank, the first aqueduct, conveying pump, wash water pipe, controllable electromagnetic valve jointly form bottled water division and divide.
Return flume, Sewage treatment pond, the second aqueduct, back water pump, filter and water tank form backwater part jointly.
Voltage transmitter, current transducer, controller and environment monitor form control section jointly.
Further, described Sewage treatment pond is provided with Sewage treatment pit level meter.
Further, described water tank is provided with high water tank meter.
Further, described water tank is by controlling the external running water of magnetic valve of water tank water intake.
Photovoltaic module string refers to: in photovoltaic generating system, is connected in a series arrangement by multiple photovoltaic module, forms the minimum unit with required VD.
Further, described controller is back yard industry computer.
Use large-sized photovoltaic power station photovoltaic module as previously mentioned a to become more meticulous method that cleaning device cleans photovoltaic module, comprises the following steps:
(1) each the optical crosstalk photovoltaic assembly in large-sized photovoltaic power station is numbered, controllable electromagnetic valve on wash water pipe is also numbered accordingly, numbering principle is: all for large-sized photovoltaic power station photovoltaic modulies are carried out subregion by megawatt unit, and the photovoltaic module string inside each district is numbered by horizontal and vertical uniqueness.
(2) by voltage transmitter, current transducer respectively to often organizing the voltage of photovoltaic module string, current signal gathers; By environment monitor, light radiation value, temperature in photovoltaic plant regional environment are gathered;
(3) the light radiation value in certain year n-th day moment on daytime, temperature, electric current, voltage are gathered and delivers to controller; The light radiation value of n-th day that sends, temperature, electric current, voltage are carried out record by controller, and the photovoltaic module string power output of inscribing when voltage, electric current are multiplied and draw this; Gather and output voltage, the current value under n-th day illumination radiation value, temperature the same terms in the (n+1)th to n+m sky controller every day, and calculate photovoltaic module string power output; And to from after n-th day every day photovoltaic module string power output and the ratio of the photovoltaic module string power output of n-th day judge: if the power output ratio of certain optical crosstalk photovoltaic assembly is less than 95%, then judge that corresponding photovoltaic module string needs cleaning, and start cleaning procedure; If certain string output power of photovoltaic module ratio is not less than 95%, then judge that corresponding photovoltaic module string is without the need to cleaning, without the need to starting cleaning procedure.
It within above-mentioned said certain year, is 1 year in photovoltaic plant life cycle.The design of photovoltaic power station life-span is generally 25 years.Because photovoltaic module itself exists decay every year, so certain year n-th day will upgrade along with the time, in Rule of judgment, introduce the n-th+m sky, m is exactly the cycle of amendment setting value n-th day power output, and m can adjust according to the practical condition of photovoltaic plant.
(4) when the water in Sewage treatment pond reaches the height point of Sewage treatment pit level meter, start back water pump, recovery waste water is delivered to filter, waste water realizes recycling by delivering to water tank after metre filter.
(5) reason declined due to photovoltaic module string power output is many-sided, for whether inspection is the problem of cleaning soluble power output, introduce cleaning post-evaluation program, namely controller also possesses cleaning post-evaluation function: second day after cleaned, by same light according to radiation value, cleaned at temperature after photovoltaic module string power output compared with the photovoltaic module string power output before cleaning, if power ratio is greater than 1, then think that cleaning is effective, the decline of this optical crosstalk photovoltaic assembly string power output can be resolved by cleaning; If power ratio is less than 1, then think that cleaning is invalid, the photovoltaic module Series Code number gone wrong is reflected on the display that the display that is connected with controller or controller carry by this Time Controller, overhauls for photovoltaic plant operation maintenance personnel.
Further, in described step (3), cleaning procedure is specially: when controller judges that certain group photovoltaic module string needs to clean, first controller records the photovoltaic module Series Code number needing cleaning, then start conveying pump at setting-up time (during as the dusk), setting-up time, not affect generating for principle, is opened and the photovoltaic module Series Code number corresponding magnetic valve needing to clean, carry out unifying cleaning, avoid the frequent start-stop of conveying pump.
Tool of the present invention has the following advantages:
The size of the photovoltaic module string power output be concerned about in 1, large-sized photovoltaic power station cleaning dust removal problem and photovoltaic plant later stage being produced combines, and be convenient to the realization of cleaning dedusting, cleaning efficiency is high;
2, scavenging period can reduce flushing dose to utilize the rate of descent of output power of photovoltaic module rationally to determine, for scavenging period is shortened in power station, creates the time value;
3, cleaning is accurate to each optical crosstalk photovoltaic assembly, is conducive to the precise management in power station, saves the water consumption in the later stage O&M of large-sized photovoltaic power station, improves the utilization rate of water or cleaning fluid, reduces photovoltaic plant later stage operation expense; Meanwhile, undertaken unified for the scavenging period of photovoltaic plant, the frequent start-stop of water pump can be avoided, extend water pump service life;
4, introduce cleaning post-evaluation program, for photovoltaic plant later stage operation maintenance personnel alleviates workload, meanwhile, improve photovoltaic plant operational reliability.
5, clean waste water or cleaning fluid reusable edible, avoid the wasting of resources and protection of the environment.
Accompanying drawing explanation
Fig. 1 is that photovoltaic module the become more meticulous bottled water division of cleaning device in large-sized photovoltaic power station of the present invention is divided and backwater part-structure schematic diagram.
Fig. 2 is that large-sized photovoltaic power station of the present invention photovoltaic module becomes more meticulous the control section structural representation of cleaning device.
Fig. 3 is that large-sized photovoltaic power station of the present invention photovoltaic module becomes more meticulous cleaning method flow chart.
Wherein: 1 is photovoltaic module string; 2 is water tank; 3 is filter; 4 is aqueduct; 5 is return flume; 6 is conveying pump; 7 is back water pump; 8 is Sewage treatment pond; 9 is controllable electromagnetic valve; 10 is wash water pipe; 11 is high water tank meter; 12 is Sewage treatment pit level meter; 13 is voltage transmitter; 14 is current transducer; 15 is environment monitor; 16 is controller.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to Fig. 1, Fig. 2, a kind of large-sized photovoltaic power station photovoltaic module becomes more meticulous cleaning device, comprise water tank 2, the delivery port of water tank 2 is connected with first aqueduct 4-1 one end, the first aqueduct 4-1 other end extends above photovoltaic module string 1 region, one end near water tank 2 delivery port on first aqueduct 4-1 is provided with conveying pump 6, the first aqueduct 4-1 other end draws and is connected to wash water pipe 10, the quantity of wash water pipe 10 is identical with the string number of photovoltaic module string 1, wash water pipe 10 is equipped with controllable electromagnetic valve 9; Return flume 5 is provided with below photovoltaic module string 1, return flume 5 is connected with Sewage treatment pond 8, Sewage treatment pond 8 is connected with the water inlet of filter 3 by the second aqueduct 4-2, the second aqueduct 4-2 that the water inlet of filter 3 is connected with Sewage treatment pond 8 is provided with back water pump 7, and the delivery port of filter 3 is connected with water tank 2; Described photovoltaic module string 1 is provided with voltage transmitter and current transducer, and voltage transmitter 13 and current transducer 14 are all electrically connected with controller 16, and controller 16 is also electrically connected with environment monitor 15; Controllable electromagnetic valve 9 is also electrically connected with controller 16.
Water tank 2, first aqueduct 4-1, conveying pump 6, wash water pipe 10, controllable electromagnetic valve 9 jointly form bottled water division and divide.
Return flume 5, Sewage treatment pond 8, second aqueduct 4-2, back water pump 7, filter 3 and water tank 2 form backwater part jointly.
Voltage transmitter 13, current transducer 14, controller 16 and environment monitor 15 form control section jointly.
Described Sewage treatment pond 8 is provided with Sewage treatment pit level meter 12.
Described water tank 2 is provided with high water tank meter 11.
The external running water of magnetic valve (not shown) that described water tank 2 is intake by controlling water tank 2.
Photovoltaic module string 1 refers to: in photovoltaic generating system, is connected in a series arrangement by multiple photovoltaic module, forms the minimum unit with required VD.
Described controller 16 is back yard industry computer.
Voltage transmitter 13, current transducer 14 are respectively used to the voltage and current gathering the output of photovoltaic module string 1; Environment monitor 15 is for gathering illumination condition, the environment temperature of photovoltaic module affiliated area; Controller 16 belongs to decision-making device, and the voltage of collection, electric current, illumination, temperature signal are used for computing, judge that photovoltaic module string 1 is the need of cleaning; If controller 16 judges that now photovoltaic module needs cleaning, then it sends command signal to controllable electromagnetic valve 9 conducting in requisition for cleaning photovoltaic module string 1, in the time conveying pump 6 power transmission running of setting, water is delivered to and needs the photovoltaic module string 1 of cleaning to clean; When liquid level gauge 12 collects high signal in Sewage treatment pond 8, automatically start back water pump 7 and carry out Sewage treatment; When in Sewage treatment pond 8, liquid level gauge collects low level signal, back water pump 7 quits work; High water tank meter 11, for water level height in monitoring water tank 2, when the water level in water tank 2 is lower than setting low value, carries out supplementing of rinse water; When water level is higher than setting high level, stop water tank with water.
With reference to Fig. 3, a kind of use as previously mentioned large-sized photovoltaic power station photovoltaic module becomes more meticulous the method that cleaning device cleans photovoltaic module, comprises the following steps:
(1) each the optical crosstalk photovoltaic assembly in large-sized photovoltaic power station is numbered, controllable electromagnetic valve 9 on wash water pipe 10 is also numbered accordingly, numbering principle is: all for large-sized photovoltaic power station photovoltaic modulies are carried out subregion by megawatt unit, and the photovoltaic module string inside each district is numbered by horizontal and vertical uniqueness.
(2) by voltage transmitter 13, current transducer 14 respectively to often organizing the voltage of photovoltaic module string, current signal gathers; Gathered by light radiation value, temperature in environment monitor 15 pairs of photovoltaic plant regional environments.
(3) light radiation value A (nt), the temperature T (nt) in certain year n-th day moment on daytime, electric current I (nt), voltage U (nt) are gathered and deliver to controller 16; The light radiation value A (nt) of n-th day that sends, temperature T (nt), electric current I (nt), voltage U (nt) are carried out record by controller 16, and photovoltaic module string power output P (nt)=I (nt) U (nt) inscribed when electric current I (nt), voltage U (nt) are multiplied and draw this; Gather and output voltage U (mt), the current value I (mt) under n-th day illumination radiation value, temperature the same terms in the (n+1)th to n+m sky controller 16 every day, and calculate photovoltaic module string power output P (mt)=I (mt) U (mt); And to from after n-th day every day photovoltaic module string power output and the ratio of the photovoltaic module string power output of n-th day carry out judging P (mt) < 0.95P (nt): if the power output ratio of certain optical crosstalk photovoltaic assembly is less than 95%, then judge that corresponding photovoltaic module string 1 needs cleaning, and start cleaning procedure; If certain string output power of photovoltaic module ratio is not less than 95%, then judge that corresponding photovoltaic module string 1 is without the need to cleaning, without the need to starting cleaning procedure.
It within above-mentioned said certain year, is 1 year in photovoltaic plant life cycle.The design of photovoltaic power station life-span is generally 25 years.Because photovoltaic module itself exists decay every year, so certain year n-th day will upgrade along with the time, in Rule of judgment, introduce the n-th+m sky, m is exactly the cycle of amendment setting value n-th day power output, and m can adjust according to the practical condition of photovoltaic plant.
Above-mentioned said cleaning procedure is specially: when controller 16 judges that certain group photovoltaic module string 1 needs to clean, first controller 16 records the photovoltaic module Series Code number needing cleaning, then at candlelight, and (setting-up time is not to affect generating for principle) starts conveying pump, the photovoltaic module Series Code number corresponding magnetic valve opened and need to clean, carry out unifying cleaning, avoid the frequent start-stop of conveying pump.
(4) when the water in Sewage treatment pond 8 reaches the height point of Sewage treatment pit level meter 12, start back water pump 7, recovery waste water is delivered to filter 3, waste water is delivered to water tank 2 after being filtered by filter 3 and is realized recycling.
(5) reason declined due to photovoltaic module string power output is many-sided, for whether inspection is the problem of cleaning soluble power output, introduce cleaning post-evaluation program, namely controller 16 also possesses cleaning post-evaluation function: second day after cleaned, by same light according to radiation value, cleaned at temperature after photovoltaic module string power output compared with the photovoltaic module string power output before cleaning, if power ratio is greater than 1, then think that cleaning is effective, the decline of this optical crosstalk photovoltaic assembly string power output can be resolved by cleaning; If power ratio is less than 1, then think that cleaning is invalid, the photovoltaic module Series Code number gone wrong is reflected on the display that the display that is connected with controller 16 or controller 16 carry by this Time Controller, overhauls for photovoltaic plant operation maintenance personnel.In Fig. 3, U (m1t) represents the magnitude of voltage that m+1 days (namely cleaned after second day) collects, I (m1t) represents the current value that m+1 days (namely cleaned after second day) collects, A (m1t) represents the light radiation value that m+1 days (namely cleaned after second day) collects, T (m1t) represents that the temperature value that m+1 days (namely cleaned after second day) collects, P (m1t) represent the photovoltaic module string power output of m+1 days (namely cleaned after second day).
Claims (6)
1. a large-sized photovoltaic power station photovoltaic module becomes more meticulous cleaning device, it is characterized in that, comprise water tank, the delivery port of water tank is connected with one end of the first aqueduct, the other end of the first aqueduct extends above photovoltaic module string region, and the first aqueduct is provided with conveying pump near one end of water outlet of water tank, and the first aqueduct other end draws and is connected to wash water pipe, the quantity of wash water pipe is identical with the string number of photovoltaic module string, and wash water pipe is equipped with controllable electromagnetic valve; Return flume is provided with below photovoltaic module string, return flume is connected with Sewage treatment pond, Sewage treatment pond is connected with the water inlet of filter by the second aqueduct, the second aqueduct that the water inlet of filter is connected with Sewage treatment pond is provided with back water pump, and the delivery port of filter is connected with water tank; Described photovoltaic module string is provided with voltage transmitter and current transducer, and voltage transmitter and current transducer are all electrically connected with controller, and controller is also electrically connected with environment monitor; Controllable electromagnetic valve is also electrically connected with controller.
2. large-sized photovoltaic power station according to claim 1 photovoltaic module becomes more meticulous cleaning device, it is characterized in that, described Sewage treatment pond is provided with Sewage treatment pit level meter.
3. large-sized photovoltaic power station according to claim 1 and 2 photovoltaic module becomes more meticulous cleaning device, it is characterized in that, described water tank is provided with high water tank meter.
4. large-sized photovoltaic power station according to claim 1 and 2 photovoltaic module becomes more meticulous cleaning device, and it is characterized in that, described controller is back yard industry computer.
5. use and state large-sized photovoltaic power station photovoltaic module as any one of claim 1-4 and to become more meticulous the method that cleaning device cleans photovoltaic module, it is characterized in that, comprise the following steps:
(1) each the optical crosstalk photovoltaic assembly in large-sized photovoltaic power station is numbered, controllable electromagnetic valve on wash water pipe is also numbered accordingly, numbering principle is: all for large-sized photovoltaic power station photovoltaic modulies are carried out subregion by megawatt unit, and the photovoltaic module string inside each district is numbered by horizontal and vertical uniqueness;
(2) by voltage transmitter, current transducer respectively to often organizing the voltage of photovoltaic module string, current signal gathers; By environment monitor, light radiation value, temperature in photovoltaic plant regional environment are gathered;
(3) the light radiation value in certain year n-th day moment on daytime, temperature, electric current, voltage are gathered and delivers to controller; The light radiation value of n-th day that sends, temperature, electric current, voltage are carried out record by controller, and the photovoltaic module string power output of inscribing when voltage, electric current are multiplied and draw this; Gather and output voltage, the current value under n-th day illumination radiation value, temperature the same terms in the (n+1)th to n+m sky controller every day, and calculate photovoltaic module string power output; And to from after n-th day every day photovoltaic module string power output and the ratio of the photovoltaic module string power output of n-th day judge: if the power output ratio of certain optical crosstalk photovoltaic assembly is less than 95%, then judge that corresponding photovoltaic module string needs cleaning, and start cleaning procedure; If certain string output power of photovoltaic module ratio is not less than 95%, then judge that corresponding photovoltaic module string is without the need to cleaning, without the need to starting cleaning procedure;
(4) when the water in Sewage treatment pond reaches the height point of Sewage treatment pit level meter, start back water pump, recovery waste water is delivered to filter, waste water realizes recycling by delivering to water tank after metre filter;
(5) reason declined due to photovoltaic module string power output is many-sided, for whether inspection is the problem of cleaning soluble power output, introduce cleaning post-evaluation program, namely controller also possesses cleaning post-evaluation function: second day after cleaned, by same light according to radiation value, cleaned at temperature after photovoltaic module string power output compared with the photovoltaic module string power output before cleaning, if power ratio is greater than 1, then think that cleaning is effective, the decline of this optical crosstalk photovoltaic assembly string power output can be resolved by cleaning; If power ratio is less than 1, then think that cleaning is invalid, the photovoltaic module Series Code number gone wrong is reflected on the display that the display that is connected with controller or controller carry by this Time Controller, overhauls for photovoltaic plant operation maintenance personnel.
6. use large-sized photovoltaic power station photovoltaic module to become more meticulous according to claim 5 method that cleaning device cleans photovoltaic module, it is characterized in that, in described step (3), cleaning procedure is specially: when controller judges that certain group photovoltaic module string needs to clean, first controller records the photovoltaic module Series Code number needing cleaning, then conveying pump is started at setting-up time, setting-up time is not to affect generating for principle, the photovoltaic module Series Code number corresponding magnetic valve opened and need to clean, carry out unifying cleaning, avoid the frequent start-stop of conveying pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562334.2A CN105057262B (en) | 2015-09-08 | 2015-09-08 | Fine cleaning device and method for photovoltaic modules of large photovoltaic power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562334.2A CN105057262B (en) | 2015-09-08 | 2015-09-08 | Fine cleaning device and method for photovoltaic modules of large photovoltaic power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105057262A true CN105057262A (en) | 2015-11-18 |
| CN105057262B CN105057262B (en) | 2017-03-22 |
Family
ID=54486898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510562334.2A Active CN105057262B (en) | 2015-09-08 | 2015-09-08 | Fine cleaning device and method for photovoltaic modules of large photovoltaic power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105057262B (en) |
Cited By (2)
| 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 |
| CN111478663A (en) * | 2020-03-20 | 2020-07-31 | 浙江嘉科新能源科技有限公司 | Clean heat sink of photovoltaic module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201518459U (en) * | 2009-09-16 | 2010-06-30 | 赵枫 | Automatic cleaning and cooling system for solar photovoltaic generation system |
| KR101044713B1 (en) * | 2010-07-29 | 2011-06-28 | (주)하이레벤 | Efficiency enhancement equipment for solar photovoltaic power facilities by cleaning |
| CN202028569U (en) * | 2011-03-22 | 2011-11-09 | 淮海工学院 | Photovoltaic water pump cleaning device |
| CN202238750U (en) * | 2011-09-27 | 2012-05-30 | 北京桑纳斯太阳能电池有限公司 | Intelligent cleaning device for surface of photovoltaic solar panel subassembly |
| CN103223404A (en) * | 2013-04-18 | 2013-07-31 | 内蒙古电力勘测设计院 | Automatic washing device and method for solar photovoltaic component |
| CN104722519A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Automatic cleaning system for photovoltaic modules |
| CN204934101U (en) * | 2015-09-08 | 2016-01-06 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of large-sized photovoltaic power station photovoltaic module cleaning device |
-
2015
- 2015-09-08 CN CN201510562334.2A patent/CN105057262B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201518459U (en) * | 2009-09-16 | 2010-06-30 | 赵枫 | Automatic cleaning and cooling system for solar photovoltaic generation system |
| KR101044713B1 (en) * | 2010-07-29 | 2011-06-28 | (주)하이레벤 | Efficiency enhancement equipment for solar photovoltaic power facilities by cleaning |
| CN202028569U (en) * | 2011-03-22 | 2011-11-09 | 淮海工学院 | Photovoltaic water pump cleaning device |
| CN202238750U (en) * | 2011-09-27 | 2012-05-30 | 北京桑纳斯太阳能电池有限公司 | Intelligent cleaning device for surface of photovoltaic solar panel subassembly |
| CN103223404A (en) * | 2013-04-18 | 2013-07-31 | 内蒙古电力勘测设计院 | Automatic washing device and method for solar photovoltaic component |
| CN104722519A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Automatic cleaning system for photovoltaic modules |
| CN204934101U (en) * | 2015-09-08 | 2016-01-06 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of large-sized photovoltaic power station photovoltaic module cleaning device |
Cited By (3)
| 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 |
| CN107064165B (en) * | 2017-05-23 | 2021-02-19 | 四川广目科技有限公司 | Photovoltaic module surface area gray scale online detection device and cleaning method |
| CN111478663A (en) * | 2020-03-20 | 2020-07-31 | 浙江嘉科新能源科技有限公司 | Clean heat sink of photovoltaic module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105057262B (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205092808U (en) | Large -scale outdoor photovoltaic power generation field | |
| CN203942885U (en) | A kind of control of desert system combining with photovoltaic plant | |
| CN204934101U (en) | A kind of large-sized photovoltaic power station photovoltaic module cleaning device | |
| CN105057262A (en) | Fine cleaning device and method for photovoltaic modules of large photovoltaic power station | |
| CN105689313A (en) | Automatic cleaning system for battery pack of photovoltaic power station | |
| CN212115267U (en) | Clean heat sink of photovoltaic module | |
| CN108179804A (en) | A kind of regenerative resource green building system | |
| CN108064666A (en) | A kind of unattended water conservancy irrigation device based on Internet of Things On-line Control | |
| CN105627632B (en) | Riverbed river bed water is used for integrated approach and the integrated morphology that water resource heat pump recycles | |
| CN106120954A (en) | Thermal power plant's water circulation system | |
| CN206878766U (en) | A kind of photovoltaic plant cleaning and anti-PID devices | |
| CN202063801U (en) | Energy-saving sewage treatment device for power generation | |
| CN204921237U (en) | Cooling tower return water power generation facility | |
| CN105544474B (en) | A kind of floating net being used for before water inlet disappears vortex method | |
| CN208908750U (en) | A kind of maize culture water supply device | |
| CN105020085A (en) | Cooling tower water return power generation device and power generation method by using same | |
| CN112997622A (en) | Ecological restoration device for coastal saline-alkali soil and use method thereof | |
| CN204376823U (en) | The automatic device for cleaning and lowering temperature of photovoltaic module | |
| CN206368079U (en) | A kind of coal yard wastewater recycling system | |
| CN111396234A (en) | Circulating water power generation | |
| CN106936377B (en) | Fishing light complementation photovoltaic generating system | |
| CN105927457A (en) | Circulating water hydroelectric power station constructed through interaction of self-weight of water bodies and buoyance | |
| CN205305586U (en) | Small -size artifical rainfall simulation device | |
| CN111478663A (en) | Clean heat sink of photovoltaic module | |
| CN211180663U (en) | Automatic adjusting device for upstream flow stability of beach protection scouring stability model test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |