CN103389397A - Anti-cheating system for photovoltaic power generation - Google Patents
Anti-cheating system for photovoltaic power generation Download PDFInfo
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- CN103389397A CN103389397A CN2013103100295A CN201310310029A CN103389397A CN 103389397 A CN103389397 A CN 103389397A CN 2013103100295 A CN2013103100295 A CN 2013103100295A CN 201310310029 A CN201310310029 A CN 201310310029A CN 103389397 A CN103389397 A CN 103389397A
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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, 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 the photovoltaic generation control field, particularly relate to a kind of photovoltaic generation anti-cheating system.
Background technology
On November 1st, 2012, the national grid open type was accepted grid-connected.According to national grid " about carrying out the be incorporated into the power networks suggestion of services of distributed photovoltaic power generation ", the flow process that is incorporated into the power networks is handled about 45 working days in cycle.The distributed photovoltaic project that is incorporated into the power networks is generated electricity by way of merging two or more grid systems, and national grid needs the expense of synchronous payment purchase distributed photovoltaic electric weight.Yet the difference electricity price between photovoltaic generation price and the online of conventional thermoelectricity needs to be subsidized by country, and 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 that promotes China's theCourse of PV Industry ", " distributed photovoltaic power generation demonstration area implementing method and electricity price subsidy standard " etc.Wherein, the grid-connected direct correlation of photovoltaic generation electricity price subsidy policy and national grid.Distributed photovoltaic electricity price subsidy main contents comprise: all distributed photovoltaic power generation projects, comprise generate power for their own use and remaining electricity on mesh portions, 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, the demonstration area project will be carried out fixedly electricity price, with actual power generation, calculate the subsidy amount of money.
In addition, National Energy Board's issue in September " about declaring the notice of distributed photovoltaic power generation scale application demonstration area "." 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 carries out unified subsidy standard to generate power for their own use electric weight and unnecessary electricity volume.According to " notice ", each province (district, city) energy competent authorities reported distributed photovoltaic power generation demonstration area embodiment before October 15.Power grid enterprises will implement corresponding electrical network access and the service of being incorporated into the power networks by the demonstration area embodiment of the final reply of National Energy Board.
If after determining according to the policy of electric weight subsidy, must have part entity and individual and bore the control of policy, will be originally not that the photovoltaic system electricity serves as the photovoltaic system electricity and gains subsidy by cheating, and how by technological means, to block this leak and just seem extremely urgent.
Current photovoltaic generation metering is mainly to adopt original anti-theft electricity technology means, as means such as lead sealings, prevents from gauging table is carried out artificial destruction, still can't 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 metering cheating, and then gain the generating subsidy by cheating.
Summary of the invention
The present invention just is being based on the problems referred to above, has proposed a kind of new technical scheme, can monitor photovoltaic generation, prevents photovoltaic power generation quantity metering cheating and then gains the generating subsidy by cheating.
In view of this, the present invention proposes a kind of photovoltaic generation anti-cheating system, comprise: the irradiance sensor, it is connected to comparing unit, measure the light irradiation intensity on described photovoltaic panel, and the light irradiation intensity that will measure carries out the light irradiation intensity that obtains after digitizing value and is sent to described comparing unit; Described comparing unit is connected to described irradiance sensor, determine generated output value and the generated energy estimated value of described photovoltaic generating system according to described smooth irradiation intensity value, the actual electric weight of described generated energy estimated value and measurement meter is compared the output comparative result.
In this technical scheme, measure in real time the average irradiation situation in photovoltaic erecting stage by the irradiance sensor, in conjunction with photovoltaic panel conversion efficiency and historical record, estimate the system generated energy, by estimating electric weight and actual measurement comparision of quantity of electricity, provide system operation situation, prevent photovoltaic power generation quantity metering cheating, and then gain subsidy by cheating.
In technique scheme, preferably, described comparing unit also comprises: record cell, it is connected to described irradiance sensor, and the described smooth irradiation intensity value that receives and the described generated output value of determining are carried out real time record.
In this technical scheme, by record cell, historical data is carried out record, so both can avoid the loss of data, also facilitate the user to check historical data.
In technique scheme, preferably, described comparing unit also comprises: output unit, it is connected to described record cell, according to corresponding relation curve and/or the table of comparisons between described smooth irradiation intensity and the described generated output value described smooth irradiation intensity value of output and described generated output value.
In this technical scheme, can obtain by light irradiation intensity value the theoretical value of generated output, and can obtain relation curve and/or relation table according to light irradiation intensity value and generated output theoretical value, can obtain actual relation curve and/or relation table according to light irradiation intensity value and generated output value simultaneously, so just can obtain between the two corresponding relation curve and/or the table of comparisons, like this, react between the two relation by corresponding relation curve and/or the table of comparisons, more directly perceived, the user checks more convenient.
In technique scheme, preferably, described comparing unit is according to described corresponding relation curve and/or the described table of comparisons of described output unit output, determine the generated energy estimated value of described photovoltaic generating system, and the actual electric weight of described generated energy estimated value and measurement meter is compared, whether the running status of judging described photovoltaic generating system is normal.
In this technical scheme, the actual electric weight of the generated energy estimated value of electricity generation system and measurement meter is compared, can judge according to both differences whether electricity generation system is in normal operating condition, if both are more or less the same, in the difference range that allows, the photovoltaic generating system normal operation is described,, if both differ more, illustrates that the photovoltaic generating system operation is undesired.
In technique scheme, preferably, be provided with the wireless telecommunications sending module in described irradiance sensor, and by described wireless telecommunications sending module, described smooth irradiation intensity value be sent to described comparing unit.
In technique scheme, preferably, be provided with the wireless telecommunications receiver module in described comparing unit, and by described wireless telecommunications receiver module, receive described smooth irradiation intensity value.
In this technical scheme, due to light irradiance installation of sensors dispersion and distant, the wireless communication mode networking is adopted in the communication between equipment and sensor.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, the low characteristics that are easy to purchase of module price, can meet the requirement of system for communication speed and reliability fully.Comparing unit arranges wireless receiving module, each sensor setting wireless sending module, and photovoltaic generation measurement meter configuration RS485 communication interface, become an organic whole by RS485 communication network homologous ray.
In technique scheme, preferably, also comprise: alarm unit, it is connected to described comparing unit, at described comparative result, is described running status when undesired, to the user, sends alarm.
In this technical scheme, when the running status of photovoltaic generating system was undesired, the prompting user, so that the user is known its running status, and taked 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 smooth irradiation intensity value, described generated output value, described corresponding relation curve and/or the described table of comparisons are shown to the user.
In technique scheme, preferably, described display unit comprises: display screen and/or pilot lamp.
In this technical scheme, the user can view and oneself want the data of checking by display unit, like this, system data and Output rusults is displayed user friendly checking in mode intuitively.
By above technical scheme, can monitor photovoltaic generation, prevent photovoltaic power generation quantity metering cheating, and then gain the 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, includes but not limited to following example:
It is the single-chip microcomputer of MSP430G2553 that comparing unit can adopt the model of Texas Instrument;
Record cell can adopt the storer of 24C04 series;
It is the controller of FX06 that output unit can adopt the model of Beijing energy moral wisdom Science and Technology Ltd.;
It is the alarm of SC-530 that alarm unit can adopt the model of the holy fighter electronics corporation in Shenzhen;
It is the display screen of MSGl2864 that display unit can adopt model, certainly, also can select charactron to show.
Description of drawings
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 more clearly to 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.Need to prove, in the situation that do not conflict, the application's embodiment and the feature in embodiment can make up mutually.
A lot of details have been set forth 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 and implement, and therefore, protection scope of the present invention is not subjected to 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, measure the light irradiation intensity on described photovoltaic panel, and the light irradiation intensity that will measure carries out the light irradiation intensity that obtains after digitizing value and is sent to described comparing unit; Described comparing unit 104 is connected to described irradiance sensor 102, determine generated output value and the generated energy estimated value of described photovoltaic generating system according to described smooth irradiation intensity value, the actual electric weight of described generated energy estimated value and measurement meter is compared the output comparative result.
In this technical scheme, measure in real time the average irradiation situation in photovoltaic erecting stage by the irradiance sensor, in conjunction with photovoltaic panel conversion efficiency and historical record, estimate the system generated energy, by estimating electric weight and actual measurement comparision of quantity of electricity, provide system operation situation, prevent photovoltaic power generation quantity metering cheating, and then gain subsidy by cheating.
In technique scheme, preferably, described comparing unit 104 comprises: record cell 1042, be connected to described irradiance sensor 102, and the described smooth irradiation intensity value that receives and the described generated output value of determining are carried out real time record.
In this technical scheme, by record cell, historical data is carried out record, so both can avoid the loss of data, also facilitate the 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, according to corresponding relation curve and/or the table of comparisons between described smooth irradiation intensity and the described generated output value described smooth irradiation intensity value of output and described generated output value.
In this technical scheme, can obtain by light irradiation intensity value the theoretical value of generated output, and can obtain relation curve and/or relation table according to light irradiation intensity value and generated output theoretical value, can obtain actual relation curve and/or relation table according to light irradiation intensity value and generated output value simultaneously, so just can obtain between the two corresponding relation curve and/or the table of comparisons, like this, react between the two relation by corresponding relation curve and/or the table of comparisons, more directly perceived, the user checks more convenient.
In technique scheme, preferably, described comparing unit 104 is according to described corresponding relation curve and/or the described table of comparisons of described output unit 1044 outputs, determine the generated energy estimated value of described photovoltaic generating system, and the actual electric weight of described generated energy estimated value and measurement meter is compared, whether the running status of judging described photovoltaic generating system is normal.
In this technical scheme, the actual electric weight of the generated energy estimated value of electricity generation system and measurement meter is compared, can judge according to both differences whether electricity generation system is in normal operating condition, if both are more or less the same, in the difference range that allows, the photovoltaic generating system normal operation is described,, if both differ more, illustrates that the photovoltaic generating system operation is undesired.
In technique scheme, preferably, also comprise: alarm unit 106, be connected to described comparing unit 104, be described running status when undesired at described comparative result, send alarm to the user.
In this technical scheme, when the running status of photovoltaic generating system was undesired, the prompting user, so that the user is known its running status, and taked 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 smooth irradiation intensity value, described generated output value, described corresponding relation curve and/or the described table of comparisons are shown to the user.
In technique scheme, preferably, described display unit 108 comprises: display screen and/or pilot lamp.
In this technical scheme, the user can view and oneself want the data of checking by display unit, like this, system data and Output rusults is displayed user friendly checking in mode intuitively.
In technique scheme, preferably, be provided with the wireless telecommunications sending module in described irradiance sensor 102, and by described wireless telecommunications sending module, described smooth irradiation intensity value be sent to described comparing unit.
In technique scheme, preferably, be provided with the wireless telecommunications receiver module in described comparing unit 104, and by described wireless telecommunications receiver module, receive described smooth irradiation intensity value.
In this technical scheme, due to light irradiance installation of sensors dispersion and distant, the wireless communication mode networking is adopted in the communication between equipment and sensor.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, the low characteristics that are easy to purchase of module price, can meet the requirement of system for communication speed and reliability fully.Comparing unit arranges wireless receiving module, each sensor setting wireless sending module, and photovoltaic generation measurement meter configuration RS485 communication interface, become 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, the wireless telecommunications sending module 200 according to an embodiment of the invention, comprising: controller 202,, according to the data transmitted signal that receives, send data and send order; Wireless transceiver 204, be connected to described controller 202, according to described data, sends order, sends data; Storer 206, be connected to described controller, and described data are stored; Power module 208, be 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 the I/O interface.
In this technical scheme, due to light irradiance installation of sensors dispersion and distant, the wireless communication mode networking is adopted in the communication between equipment and sensor.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, the low characteristics that are easy to purchase of module price, can meet the requirement of system for communication speed and reliability fully.Comparing unit arranges wireless receiving module, each sensor setting wireless sending module, and photovoltaic generation measurement meter configuration RS485 communication interface, become 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 comprised of four parts according to an embodiment of the invention: measurement subsystem 302, wireless telecommunications subsystem 304, running status judgement subsystem 306, man-machine interaction subsystem 308 form.Below each several part is described in detail:
(1) measurement subsystem 302
It is mainly irradiance sensor 102.Irradiance sensor 102 is mainly to measure photovoltaic panel erecting stage correlative light irradiance, irradiance sensor 102 is measured the irradiance of light in real time, each system can, according to 4～10 light irradiance sensors of photovoltaic panel installation situation configuration, will be uploaded to running status judgement subsystem 306 by wireless (zigbee) communication subsystem 304 after the light irradiance digitizing.
(2) the wireless telecommunications subsystem 304
Due to light irradiance installation of sensors dispersion and distant, the wireless communication mode networking is adopted in the communication between equipment and sensor.Wireless employing zigbee, this communication modes is very ripe scheme in communication, has reliability high, and the low characteristics that are easy to purchase of module price, can meet the requirement of system for communication speed and reliability fully.Device arranges wireless receiving module, each sensor setting wireless sending module, photovoltaic generation measurement meter configuration RS485 communication interface.Become an organic whole by the RS485 communication network with device.
Sensor node (being the wireless telecommunications sending modules) is to be the specially designed microcomputer system of sensor network, is the elementary cell of wireless sensor network, and it is responsible for sensing and information pre-service, and the instruction of response monitoring main frame sends data.It comprises following components: controller 202, twireless radio-frequency communication (being wireless transceiver 204), non-volatile Flash storer 206, power module 208, wherein, controller 202 is connected with external unit by the I/O interface.
(3) running status judgement subsystem 306
The judgement of photovoltaic system running status is mainly to provide photovoltaic system generated energy estimated value according to light irradiance, generated output etc. in conjunction with historical data, and it is compared with the electric weight of measurement meter, provide system running state: normal, abnormal, carry out the reference for the related personnel.
Running status judgement subsystem 306 mainly is comprised 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 sensors are sent and to data are processed, for self-learning module 3064 and analysis and processing module 3066.Self-learning module 3064 mainly contains two functions: the one, and the log history data, the 2nd, light irradiance, mutual the influencing each other of generated output are analyzed and are provided 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, is calculated photovoltaic system generated energy estimated value, and result of calculation is issued man-machine interaction subsystem 308.Analysis and processing module 3066 also records the curve of light irradiance in detail and analyzes, and can judge improper behavior, as adopting radiation modality, increases the behaviors such as irradiance, guarantees the accuracy of distinguish of system.
(4) the man-machine interaction subsystem 308
Man-machine interaction subsystem major function is that system data and Output rusults are displayed in mode intuitively, accepts simultaneously operation maintenance personnel's setting and instruction.Estimate situation by curve icon table displaying photovoltaic system generated output estimation curve, generated energy, show simultaneously photovoltaic system actual power powertrace and generated energy, make the open-and-shut understanding of operation maintenance personnel should generate electricity situation and actual power situation, provide system running state: normal, abnormal, the prompting supervision personnel process.
More than be described with reference to the accompanying drawings technical scheme of the present invention,, by technical scheme of the present invention, can have provided system operation situation, prevented photovoltaic power generation quantity metering 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 modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a photovoltaic generation anti-cheating system, be applied to photovoltaic generating system, it is characterized in that, comprising:
The irradiance sensor, be connected to comparing unit, measures the light irradiation intensity on described photovoltaic panel, and the light irradiation intensity that will measure carries out the light irradiation intensity that obtains after digitizing value and 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 smooth irradiation intensity value, with the actual comparision of quantity of electricity of described generated energy estimated value and measurement meter, the output comparative result.
2. photovoltaic generation anti-cheating system according to claim 1, is characterized in that, described comparing unit also comprises:
Record cell, be connected to described irradiance sensor, and the described smooth irradiation intensity value that receives and the described generated output value of determining are carried out real time record.
3. photovoltaic generation anti-cheating system according to claim 2, is characterized in that, described comparing unit also comprises:
Output unit, be connected to described record cell, according to corresponding relation curve and/or the table of comparisons between described smooth irradiation intensity and the described generated output value described smooth irradiation intensity value of output and described generated output value.
4. photovoltaic generation anti-cheating system according to claim 1, is characterized in that, is provided with the wireless telecommunications sending module in described irradiance sensor, and by described wireless telecommunications sending module, described smooth irradiation 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 the wireless telecommunications receiver module in described comparing unit, and by described wireless telecommunications receiver module, receive described smooth irradiation intensity value.
6. photovoltaic generation anti-cheating system according to claim 1, is characterized in that, also comprises:
Alarm unit, be connected to described comparing unit, at described comparative result, is running status when undesired, to the user, sends alarm.
7. photovoltaic generation anti-cheating system according to claim 3, is characterized in that, also comprises:
Display unit, be connected to described irradiance sensor and described comparing unit, and described smooth irradiation intensity value, described generated output value, described corresponding relation curve and/or the described table of comparisons are shown to the user.
8. photovoltaic generation anti-cheating system according to claim 7, is characterized in that, described display unit comprises: display screen and/or pilot lamp.
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