CN103389397B - Anti-cheating system for photovoltaic power generation - Google Patents
Anti-cheating system for photovoltaic power generation Download PDFInfo
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- CN103389397B CN103389397B CN201310310029.5A CN201310310029A CN103389397B CN 103389397 B CN103389397 B CN 103389397B CN 201310310029 A CN201310310029 A CN 201310310029A CN 103389397 B CN103389397 B CN 103389397B
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- 238000010248 power generation Methods 0.000 title abstract description 19
- 230000005611 electricity Effects 0.000 claims description 35
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- 238000005516 engineering process Methods 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 2
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Abstract
The invention provides an anti-cheating system for photovoltaic power generation. The anti-cheating system comprises an irradiance sensor and a comparison unit, wherein the irradiance sensor is connected to the comparison unit and used for measuring irradiation intensity of light on a photovoltaic plate and sending a light irradiation intensity value obtained after the measured light irradiation intensity is digitized to the comparison unit; and the comparison unit is connected to the irradiance sensor, determines a power generation power value and a generating capacity estimated value of a photovoltaic power generation according to the light irradiation intensity value, compares the generating capacity estimated value with an actual electric quantity metered by a meter, and outputs a comparison result. By means of the technical scheme, the photovoltaic power generation can be monitored, and the condition that power generating subsidy is cheated due to cheating of metering of the photovoltaic power generating capacity is prevented.
Description
Technical field
The present invention relates to photovoltaic generation control field, particularly relate to a kind of photovoltaic generation anti-cheating system.
Background technology
On November 1st, 2012, national grid open type accepted grid-connected.According to national grid " suggestion about carrying out the grid-connected services of distributed photovoltaic power generation ", grid-connected flow process handles about 45 working days of cycle.Grid-connected distributed photovoltaic project is generated electricity by way of merging two or more grid systems, and national grid needs the synchronous expense paying purchase distributed photovoltaic electricity.But, photovoltaic generation price and conventional thermoelectricity surf the Net between difference electricity price need be subsidized by country, this subsidy policy can be put into effect very soon.At present, National Energy Board is is studying and defining photovoltaic industry development problem and supporting support policy, comprises " instruction promoting China's theCourse of PV Industry ", " distributed photovoltaic power generation demonstration area implementing method and electricity price subsidy standard " etc.Wherein, photovoltaic generation electricity price subsidy policy and the grid-connected direct correlation of national grid.Distributed photovoltaic electricity price subsidy main contents comprise: all distributed photovoltaic power generation projects, comprise and generating power for their own use and mesh portions on remaining electricity, all may obtain the subsidy of 0.4-0.6 unit/degree.In the middle of drawing up about distributed photovoltaic power generation demonstration area implementing method and electricity price subsidy standard, demonstration area project, by fixing for implementation electricity price, calculates the subsidy amount of money with actual power generation.
In addition, National Energy Board issues " notice about declaring distributed photovoltaic power generation scale Applied D emonstration district " September." notice " proposes, and country carries out unit quantity of electricity setting quotas for subsidies policy to the photovoltaic generation project of demonstration area, and country is to electricity and the unified subsidy standard of unnecessary electricity volume implementation of generating power for their own use.According to " notice ", (district, city) energy competent authorities of each province reported distributed photovoltaic power generation demonstration area embodiment before October 15.The demonstration area embodiment of finally giving an written reply by National Energy Board is implemented the access of corresponding electrical network and grid-connected service by power grid enterprises.
If after determining according to the policy of electricity subsidy, the control of fractional unit and individual brill policy must be had, by not being that photovoltaic system electricity serves as photovoltaic system electricity to gain subsidy by cheating originally, how blocking this leak by technological means and just to seem extremely urgent.
Current photovoltaic generation metering mainly adopts original anti-theft electricity technology means, as the means such as lead sealing prevent from carrying out artificial destruction to gauging table, but cannot prevent the fraudulent means by inversion means injecting power.
Therefore, need a kind of new technical scheme, can monitor photovoltaic generation, prevent photovoltaic power generation quantity from measuring cheating, and then gain generating subsidy by cheating.
Summary of the invention
The present invention, just based on the problems referred to above, proposes a kind of new technical scheme, can monitor photovoltaic generation, prevents photovoltaic power generation quantity from measuring cheating and then gains generating subsidy by cheating.
In view of this, the present invention proposes a kind of photovoltaic generation anti-cheating system, comprising: irradiance sensor, it is connected to comparing unit, measure the light intensity in photovoltaic panel, and the light intensity value obtained after the light intensity measured is carried out digitizing is sent to described comparing unit; Described comparing unit is connected to described irradiance sensor, generated output value and the generated energy estimated value of described photovoltaic generating system is determined according to described light intensity value, the actual electricity of described generated energy estimated value and measurement meter is compared, exports comparative result.
In this technical scheme, photovoltaic erecting stage average lamp situation is measured in real time by irradiance sensor, in conjunction with photovoltaic panel conversion efficiency and historical record, estimate systems generate electricity amount, by electricity and actual measurement comparision of quantity of electricity will be estimated, provide system operation situation, prevent photovoltaic power generation quantity from measuring cheating, and then gain subsidy by cheating.
In technique scheme, preferably, described comparing unit also comprises: record cell, and it is connected to described irradiance sensor, carries out real time record to the described light intensity value received and the described generated output value determined.
In this technical scheme, by record cell, record is carried out to historical data, so both can avoid the loss of data, also facilitate user to check historical data.
In technique scheme, preferably, described comparing unit also comprises: output unit, and it is connected to described record cell, exports corresponding relation curve between described light intensity value and described generated output value and/or the table of comparisons according to described light intensity value and described generated output value.
In this technical scheme, the theoretical value of generated output can be obtained by light intensity value, and relation curve and/or relation table can be obtained according to light intensity value and generated output theoretical value, actual relation curve and/or relation table can be obtained according to light intensity value and generated output value simultaneously, so just can obtain corresponding relation curve between the two and/or the table of comparisons, like this, relation is between the two reacted by corresponding relation curve and/or the table of comparisons, more directly perceived, user checks more convenient.
In technique scheme, preferably, the described corresponding relation curve that described comparing unit exports according to described output unit and/or the described table of comparisons, determine the generated energy estimated value of described photovoltaic generating system, and the actual electricity of described generated energy estimated value and measurement meter is contrasted, judge that whether the running status of described photovoltaic generating system is normal.
In this technical scheme, the generated energy estimated value of electricity generation system and the actual electricity of measurement meter are contrasted, can judge whether electricity generation system is in normal operating condition according to both differences, if both are more or less the same, in the difference range allowed, then photovoltaic generating system normal operation is described, if both differ more, then illustrates that photovoltaic generating system runs abnormal.
In technique scheme, preferably, in described irradiance sensor, be provided with wireless telecommunications sending module, and by described wireless telecommunications sending module, described light intensity value be sent to described comparing unit.
In technique scheme, preferably, in described comparing unit, be provided with wireless telecommunications receiver module, and receive described light intensity value by described wireless telecommunications receiver module.
In this technical scheme, because light irradiance sensor installs dispersion and distant, communication between equipment and sensor adopts wireless communication mode networking.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, and Module Price is low is easy to the feature purchased, can meet the requirement of system for communication speed and reliability completely.Comparing unit arranges wireless receiving module, each sensor setting wireless sending module, and photovoltaic generation measurement meter configuration RS485 communication interface, becomes an organic whole by RS485 communication network homologous ray.
In technique scheme, preferably, also comprise: alarm unit, it is connected to described comparing unit, described comparative result be described running status abnormal time, send alarm to user.
In this technical scheme, when the running status of photovoltaic generating system is abnormal, prompting user, so that user knows its running status, and takes corresponding operation according to this running status.
In technique scheme, preferably, also comprise: display unit, it is connected to described irradiance sensor and described comparing unit, and described light intensity value, described generated output value, described corresponding relation curve and/or the described table of comparisons are shown to user.
In technique scheme, preferably, described display unit comprises display screen; Another preferred scheme is that described display unit comprises display screen and pilot lamp.
In this technical scheme, user can view the data of oneself wanting to check by display unit, like this, system data and Output rusults is displayed in mode intuitively, user friendlyly checks.
By above technical scheme, can monitor photovoltaic generation, prevent photovoltaic power generation quantity from measuring cheating, and then gain generating subsidy by cheating.
At this, it will be understood by a person skilled in the art that above-mentioned each unit module can adopt multiple existing product to realize, include but not limited to following example:
Comparing unit can adopt the model of Texas Instrument to be the single-chip microcomputer of MSP430G2553;
Record cell can adopt the storer of 24C04 series;
Output unit can adopt the model of Beijing Neng De wisdom Science and Technology Ltd. to be the controller of FX06;
Alarm unit can adopt the model of the holy fighter electronics corporation in Shenzhen to be the alarm of SC-530;
Display unit can adopt model to be the display screen of MSGl2864, certainly, also can select numeral method.
Accompanying drawing explanation
Fig. 1 shows the block diagram of photovoltaic generation anti-cheating system according to an embodiment of the invention;
Fig. 2 shows the block diagram of wireless telecommunications sending module according to an embodiment of the invention;
Fig. 3 shows the structural drawing of photovoltaic generation anti-cheating system according to an embodiment of the invention.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here to implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the block diagram of photovoltaic generation anti-cheating system according to an embodiment of the invention.
As shown in Figure 1, photovoltaic generation anti-cheating system 100 comprises according to an embodiment of the invention: irradiance sensor 102, it is connected to comparing unit 104, for measuring the light intensity in photovoltaic panel, and the light intensity value obtained after the light intensity measured is carried out digitizing is sent to described comparing unit; Described comparing unit 104 is connected to described irradiance sensor 102, generated output value and the generated energy estimated value of described photovoltaic generating system is determined according to described light intensity value, the actual electricity of described generated energy estimated value and measurement meter is compared, exports comparative result.
In this technical scheme, photovoltaic erecting stage average lamp situation is measured in real time by irradiance sensor, in conjunction with photovoltaic panel conversion efficiency and historical record, estimate systems generate electricity amount, by electricity and actual measurement comparision of quantity of electricity will be estimated, provide system operation situation, prevent photovoltaic power generation quantity from measuring cheating, and then gain subsidy by cheating.
In technique scheme, preferably, described comparing unit 104 comprises: record cell 1042, is connected to described irradiance sensor 102, carries out real time record to the described light intensity value received and the described generated output value determined.
In this technical scheme, by record cell, record is carried out to historical data, so both can avoid the loss of data, also facilitate user to check historical data.
In technique scheme, preferably, described comparing unit 104 also comprises: output unit 1044, be connected to described record cell 1042, export corresponding relation curve between described light intensity value and described generated output value and/or the table of comparisons according to described light intensity value and described generated output value.
In this technical scheme, the theoretical value of generated output can be obtained by light intensity value, and relation curve and/or relation table can be obtained according to light intensity value and generated output theoretical value, actual relation curve and/or relation table can be obtained according to light intensity value and generated output value simultaneously, so just can obtain corresponding relation curve between the two and/or the table of comparisons, like this, relation is between the two reacted by corresponding relation curve and/or the table of comparisons, more directly perceived, user checks more convenient.
In technique scheme, preferably, the described corresponding relation curve that described comparing unit 104 exports according to described output unit 1044 and/or the described table of comparisons, determine the generated energy estimated value of described photovoltaic generating system, and the actual electricity of described generated energy estimated value and measurement meter is contrasted, judge that whether the running status of described photovoltaic generating system is normal.
In this technical scheme, the generated energy estimated value of electricity generation system and the actual electricity of measurement meter are contrasted, can judge whether electricity generation system is in normal operating condition according to both differences, if both are more or less the same, in the difference range allowed, then photovoltaic generating system normal operation is described, if both differ more, then illustrates that photovoltaic generating system runs abnormal.
In technique scheme, preferably, also comprise: alarm unit 106, be connected to described comparing unit 104, described comparative result be described running status abnormal time, send alarm to user.
In this technical scheme, when the running status of photovoltaic generating system is abnormal, prompting user, so that user knows its running status, and takes corresponding operation according to this running status.
In technique scheme, preferably, also comprise: display unit 108, be connected to described irradiance sensor and described comparing unit 104, described light intensity value, described generated output value, described corresponding relation curve and/or the described table of comparisons are shown to user.
In technique scheme, preferably, described display unit 108 comprises display screen; Another preferred scheme is, described display unit 108 comprises display screen and pilot lamp.
In this technical scheme, user can view the data of oneself wanting to check by display unit, like this, system data and Output rusults is displayed in mode intuitively, user friendlyly checks.
In technique scheme, preferably, in described irradiance sensor 102, be provided with wireless telecommunications sending module, and by described wireless telecommunications sending module, described light intensity value be sent to described comparing unit.
In technique scheme, preferably, in described comparing unit 104, be provided with wireless telecommunications receiver module, and receive described light intensity value by described wireless telecommunications receiver module.
In this technical scheme, because light irradiance sensor installs dispersion and distant, communication between equipment and sensor adopts wireless communication mode networking.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, and Module Price is low is easy to the feature purchased, can meet the requirement of system for communication speed and reliability completely.Comparing unit arranges wireless receiving module, each sensor setting wireless sending module, and photovoltaic generation measurement meter configuration RS485 communication interface, becomes an organic whole by RS485 communication network homologous ray.
Fig. 2 shows the block diagram of wireless telecommunications sending module according to an embodiment of the invention.
As shown in Figure 2, wireless telecommunications sending module 200 according to an embodiment of the invention, comprising: controller 202, sends signal according to the data received, and sends data and sends order; Wireless transceiver 204, is connected to described controller 202, sends order according to described data, sends data; Storer 206, is connected to described controller, stores described data; Power module 208, is connected to described controller 202 and described wireless transceiver 204, for described controller 202 and described wireless transceiver 204 provide required power supply.Wherein, controller 202 is connected with external unit by I/O interface.
In this technical scheme, because light irradiance sensor installs dispersion and distant, communication between equipment and sensor adopts wireless communication mode networking.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, and Module Price is low is easy to the feature purchased, can meet the requirement of system for communication speed and reliability completely.Comparing unit arranges wireless receiving module, each sensor setting wireless sending module, and photovoltaic generation measurement meter configuration RS485 communication interface, becomes an organic whole by RS485 communication network homologous ray.
Fig. 3 shows the structural drawing of photovoltaic generation anti-cheating system according to an embodiment of the invention.
As shown in Figure 3, photovoltaic generation anti-cheating system 300 is made up of four parts according to an embodiment of the invention: measurement subsystem 302, wireless telecommunications subsystem 304, running status judge subsystem 306, human-machine interaction subsystem 308 is formed.Below each several part is described in detail:
(1) measurement subsystem 302
Mainly irradiance sensor 102.Irradiance sensor 102 mainly measures photovoltaic panel erecting stage correlative light irradiance, irradiance sensor 102 measures the irradiance of light in real time, each system according to photovoltaic panel installation situation configuration 4 ~ 10 light irradiance sensors, can judge subsystem 306 by wireless (zigbee) communication subsystem 304 by being uploaded to running status after light irradiance digitizing.
(2) wireless telecommunications subsystem 304
Because light irradiance sensor installs dispersion and distant, communication between equipment and sensor adopts wireless communication mode networking.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, and Module Price is low is easy to the feature purchased, can meet the requirement of system for communication speed and reliability completely.Device arranges wireless receiving module, each sensor setting wireless sending module, photovoltaic generation measurement meter configuration RS485 communication interface.An organic whole is become with device by RS485 communication network.
Sensor node (i.e. wireless telecommunications sending module) is the specially designed microcomputer system of sensor network, and be the elementary cell of wireless sensor network, it is responsible for sensing and information pre-processing, and the instruction of response monitoring main frame sends data.It comprises following components: controller 202, twireless radio-frequency communication (i.e. wireless transceiver 204), non-volatile flash storage 206, power module 208, wherein, controller 202 is connected with external unit by I/O interface.
(3) running status judges subsystem 306
Photovoltaic system running status judges mainly to provide photovoltaic system generated energy estimated value according to light irradiance, generated output etc. in conjunction with historical data, and by it compared with the electricity of measurement meter, provide system running state: normal, abnormal, supply related personnel's reference.
Running status judges that subsystem 306 forms primarily of three submodules: data processing module 3062, self-learning module 3064, analysis and processing module 3066.The light irradiance real time data that data processing module 3062 receiving sensor is sent also processes to data, for self-learning module 3064 and analysis and processing module 3066.Self-learning module 3064 mainly contains two functions: one is log history data, two is light irradiances, mutual the influencing each other of generated output carry out analysis and provide corresponding relation curve and the table of comparisons for analysis and processing module.Analysis and processing module 3066, according to light irradiance, generated output real time data and corresponding relation curve and the table of comparisons, calculates photovoltaic system generated energy estimated value, and result of calculation is issued human-machine interaction subsystem 308.The curve of light irradiance also records and analyzes by analysis and processing module 3066 in detail, can judge improper behavior, as adopted radiation modality to increase the behaviors such as irradiance, ensures the accuracy of distinguish of system.
(4) human-machine interaction subsystem 308
Human-machine interaction subsystem major function is displayed in mode intuitively system data and Output rusults, accepts setting and the instruction of operation maintenance personnel simultaneously.Situation is estimated by curve icon table displaying photovoltaic system electricity generation power estimation curve, generated energy, show photovoltaic system actual power powertrace and generated energy simultaneously, the open-and-shut understanding of operation maintenance personnel is made to answer power generation situation and actual power situation, provide system running state: normal, abnormal, the process of prompting monitoring personnel.
More than be described with reference to the accompanying drawings technical scheme of the present invention, by technical scheme of the present invention, can system operation situation have been provided, prevented photovoltaic power generation quantity from measuring cheating, and then gain subsidy by cheating.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a photovoltaic generation anti-cheating system, is applied to photovoltaic generating system, it is characterized in that, comprising:
Irradiance sensor, is connected to comparing unit, measure the light intensity in photovoltaic panel, and the light intensity value obtained after the light intensity measured is carried out digitizing is sent to described comparing unit;
Described comparing unit, be connected to described irradiance sensor, determine generated output value and the generated energy estimated value of described photovoltaic generating system according to described light intensity value, by the actual comparision of quantity of electricity of described generated energy estimated value and measurement meter, export comparative result.
2. photovoltaic generation anti-cheating system according to claim 1, is characterized in that, described comparing unit also comprises:
Record cell, is connected to described irradiance sensor, carries out real time record to the described light intensity value received and the described generated output value determined.
3. photovoltaic generation anti-cheating system according to claim 2, is characterized in that, described comparing unit also comprises:
Output unit, is connected to described record cell, exports corresponding relation curve between described light intensity value and described generated output value and/or the table of comparisons according to described light intensity value and described generated output value.
4. photovoltaic generation anti-cheating system according to claim 1, is characterized in that, is provided with wireless telecommunications sending module in described irradiance sensor, and by described wireless telecommunications sending module, described light intensity value is sent to described comparing unit.
5. photovoltaic generation anti-cheating system according to claim 4, is characterized in that, is provided with wireless telecommunications receiver module in described comparing unit, and receives described light intensity value by described wireless telecommunications receiver module.
6. photovoltaic generation anti-cheating system according to claim 1, is characterized in that, also comprise:
Alarm unit, is connected to described comparing unit, described comparative result be running status abnormal time, send alarm to user.
7. photovoltaic generation anti-cheating system according to claim 3, is characterized in that, also comprise:
Display unit, is connected to described irradiance sensor and described comparing unit, and described light intensity value, described generated output value, described corresponding relation curve and/or the described table of comparisons are shown to user.
8. photovoltaic generation anti-cheating system according to claim 7, is characterized in that, described display unit comprises display screen.
9. photovoltaic generation anti-cheating system according to claim 7, is characterized in that, described display unit comprises display screen and pilot lamp.
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| CN104979898B (en) * | 2014-04-04 | 2018-11-27 | 国家电网公司 | One kind is opposed electricity-stealing monitoring method, main website and system |
| CN104300899A (en) * | 2014-09-11 | 2015-01-21 | 国家电网公司 | Photovoltaic power generation electricity stealing prevention system |
| CN104348413A (en) * | 2014-10-13 | 2015-02-11 | 东南大学 | Data-analysis-based adaptive photovoltaic electricity stealing prevention method |
| CN104345192A (en) * | 2014-11-25 | 2015-02-11 | 国家电网公司 | Photovoltaic power generation subsidy cheating prevention device based on neural network algorithm |
| CN105956394A (en) * | 2016-04-28 | 2016-09-21 | 南京理工大学 | Detection method of photovoltaic simulator inflated power based on least square method |
| CN105743437A (en) * | 2016-05-11 | 2016-07-06 | 国网山东省电力公司阳谷县供电公司 | Photovoltaic power generation state detecting system and application thereof |
| CN106249042A (en) * | 2016-07-08 | 2016-12-21 | 国网山东省电力公司东营供电公司 | A kind of photovoltaic generation based on data analysis monitoring system and method |
| CN110969539B (en) * | 2019-11-28 | 2024-02-09 | 温岭市非普电气有限公司 | Photovoltaic electricity stealing discovery method and system based on curve morphology analysis |
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