CN110244117A - A kind of photovoltaic panel monitoring of working condition method of photovoltaic plant - Google Patents
A kind of photovoltaic panel monitoring of working condition method of photovoltaic plant Download PDFInfo
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- CN110244117A CN110244117A CN201910584204.7A CN201910584204A CN110244117A CN 110244117 A CN110244117 A CN 110244117A CN 201910584204 A CN201910584204 A CN 201910584204A CN 110244117 A CN110244117 A CN 110244117A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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Abstract
The invention discloses a kind of photovoltaic panel monitoring of working condition methods of photovoltaic plant, which comprises step 1, periodically obtain detection zone in all photovoltaic panels the same time instant voltage and current data；Electric current and voltage data that step 1 obtains are distinguished the real-time power that simultaneous transmission calculates corresponding photovoltaic panel to computer processing system, the comparison threshold value obtained after then all power datas are uniformly processed according to preset data processing method by step 2；The comparison threshold value that step 2 obtains is successively to compare with the real-time power data obtained in step 2 by step 3, computer processing system, is confirmed whether the photovoltaic panel for having power variation abnormality；Step 4, computer processing system carry out automatic Calibration to the position for abnormal data occur, submit a report asking for manual inspection after calibration automatically twice in succession.By the above-mentioned means, the present invention can have found the photovoltaic panel of work condition abnormality immediately, the whole maintenance pressure in power station is reduced, power plant maintenance efficiency is improved.
Description
Technical field
The present invention relates to photovoltaic plant fields, more particularly to a kind of photovoltaic panel monitoring of working condition method of photovoltaic plant.
Background technique
Photovoltaic power generation is environmentally protective, is ideal energy acquisition modes, since the new century, amiable photovoltaic power generation skill
The development of the breakthrough of art, solar photovoltaic power plant is at a tremendous pace, and current photovoltaic plant is all by the photovoltaic of many same sizes
Panel composition, due to photovoltaic panel enormous amount, is safeguarded that pressure is very high, is needed as the basic composition unit of photovoltaic plant
To have to the working condition of photovoltaic panel and timely hold, to precisely determine problem, reduce invalid action.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of photovoltaic panel monitoring of working condition methods of photovoltaic plant, can
Maintenance pressure is reduced, finds problem panel in advance.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of photovoltaic of photovoltaic plant is provided
Panel monitoring of working condition method, the photovoltaic panel condition monitoring method of the photovoltaic plant the following steps are included:
Step 1, periodically obtain detection zone in all photovoltaic panels the same time instant voltage and current data；
The current data that step 1 obtains is transferred to computer processing system, computer processing system elder generation root by step 2 respectively
The real-time power of corresponding photovoltaic panel is calculated according to the data obtained, then computer processing system is according to preset data processing method
The comparison threshold value obtained after all power datas are uniformly processed；
Comparison threshold value that step 2 obtains is and the real-time power data that obtain in step 2 by step 3, computer processing system
It successively compares, is confirmed whether the photovoltaic panel for having power variation abnormality；
Step 4, computer processing system carry out automatic Calibration to the position for abnormal data occur, twice in succession after calibration certainly
It is dynamic to submit a report asking for manual inspection.
In a preferred embodiment of the present invention, the data obtained in the step 1 further include corresponding Position Number number
According to.
In a preferred embodiment of the present invention, the data processing method in the step 2 includes the following contents: first
Step, is calculated real-time power data according to voltage and current data；Second step, all panel power datas that then will be obtained
3% ~ 5% minimum data and 3% ~ 5% the maximum data are removed after sequence；Third step obtains remaining data progress mathematic(al) mean
Average value；The obtained mathematical mean of third step is obtained comparison threshold value multiplied by corresponding coefficient by the 4th step.
In a preferred embodiment of the present invention, the coefficient is 0.8 ~ 0.9.
In a preferred embodiment of the present invention, the acquisition period of data is that 30min ~ 60min is primary in the step 1.
In a preferred embodiment of the present invention, the instant electric current and voltage data acquisition mode are in photovoltaic panel
Direct current voltage sensor and DC current sensor, each direct current voltage sensor and electricity are separately connected on circuit of output terminal
Flow sensor is all electrically connected with computer processing system.
The beneficial effects of the present invention are: the technical scheme is that by corresponding instant to the setting of each photovoltaic panel
Monitoring device periodically gives monitoring data simultaneous transmission to center calculation machine control system, passes through center calculation machine control system pair
Nominal data abnormal position after data processing, whole process dynamic carry out, and can find the photovoltaic panel of work condition abnormality immediately,
The whole maintenance pressure for reducing power station, improves power plant maintenance efficiency.
Detailed description of the invention
Fig. 1 is the flow chart of a preferred embodiment of the present invention.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Attached drawing is please referred to, the embodiment of the present invention includes:
A kind of photovoltaic plant panel monitoring of working condition method, the photovoltaic plant panel condition monitoring method the following steps are included:
Step 1 periodically obtains the voltage and current data of all photovoltaic panels in detection zone；
The current data that step 1 obtains is transferred to computer processing system, computer processing system elder generation root by step 2 respectively
The real-time power of corresponding photovoltaic panel is calculated according to the data obtained, then computer processing system is according to preset data processing formula
The comparison threshold value obtained after all power datas are uniformly processed；
Comparison threshold value that step 2 obtains is and the real-time power data that obtain in step 2 by step 3, computer processing system
It successively compares, is confirmed whether the photovoltaic panel for having power variation abnormality；
Step 4, computer processing system carry out automatic Calibration to the position for abnormal data occur, twice in succession after calibration certainly
It is dynamic to submit a report asking for manual inspection.
The data obtained in the step 1 further include corresponding Position Number data, can be directly fixed by Position Number
The position of position photovoltaic panel.
Data processing method in the step 2 are as follows: instant function is calculated according to voltage and current data in the first step
Rate data；Then second step will remove 5% minimum data and 3% highest number after the sequence of obtained all panel power datas
According to；Remaining data progress mathematic(al) mean is obtained average value by third step；4th step, by the obtained mathematical mean of third step
Comparison threshold value is obtained multiplied by corresponding coefficient.The influence that can exclude abnormal data in this way obtains more believable support
Data establish comparison threshold value
The coefficient is 0.8, and the too small panel for being easy to have already appeared problem of coefficient cannot find that coefficient is too big in time, then can
There is more distracter.
The acquisition period of data is that 30min is primary in the step 1, and the calculation power for reducing center calculation machine control system is negative
Lotus reduces equipment cost.
The instant electric current and voltage data acquisition mode is to be separately connected direct current on photovoltaic panel circuit of output terminal
Voltage sensor and DC current sensor, each direct current voltage sensor and current sensor and computer disposal system
System is electrically connected, and computer processing system can obtain all panels in the operating condition number at same time point simultaneously in this way
According to.
In another embodiment:
A kind of photovoltaic plant panel monitoring of working condition method, the photovoltaic plant panel condition monitoring method the following steps are included:
Step 1 periodically obtains the voltage and current data of all photovoltaic panels in detection zone；
The current data that step 1 obtains is transferred to computer processing system, computer processing system elder generation root by step 2 respectively
The real-time power of corresponding photovoltaic panel is calculated according to the data obtained, then computer processing system is according to preset data processing formula
The comparison threshold value obtained after all power datas are uniformly processed；
Comparison threshold value that step 2 obtains is and the real-time power data that obtain in step 2 by step 3, computer processing system
It successively compares, is confirmed whether the photovoltaic panel for having power variation abnormality；
Step 4, computer processing system carry out automatic Calibration to the position for abnormal data occur, twice in succession after calibration certainly
It is dynamic to submit a report asking for manual inspection.
The data obtained in the step 1 further include corresponding Position Number data, can be directly fixed by Position Number
The position of position photovoltaic panel.
Data processing method in the step 2 are as follows: instant function is calculated according to voltage and current data in the first step
Rate data；Then second step will remove 5% minimum data and 5% highest number after the sequence of obtained all panel power datas
According to；Remaining data progress mathematic(al) mean is obtained average value by third step；4th step, by the obtained mathematical mean of third step
Comparison threshold value is obtained multiplied by corresponding coefficient.The influence that can exclude abnormal data in this way obtains more believable support
Data establish comparison threshold value
The coefficient is 0.85, and the too small panel for being easy to have already appeared problem of coefficient cannot find that coefficient is too big in time, then can
There is more distracter.
The acquisition period of data is that 60min is primary in the step 1, and the calculation power for reducing center calculation machine control system is negative
Lotus reduces equipment cost.
The instant electric current and voltage data acquisition mode is to be separately connected direct current on photovoltaic panel circuit of output terminal
Voltage sensor and DC current sensor, each direct current voltage sensor and current sensor and computer disposal system
System is electrically connected, and computer processing system can obtain all panels in the operating condition number at same time point simultaneously in this way
According to.
In another embodiment of the present invention:
A kind of photovoltaic plant panel monitoring of working condition method, the photovoltaic plant panel condition monitoring method the following steps are included:
Step 1 periodically obtains the voltage and current data of all photovoltaic panels in detection zone；
The current data that step 1 obtains is transferred to computer processing system, computer processing system elder generation root by step 2 respectively
The real-time power of corresponding photovoltaic panel is calculated according to the data obtained, then computer processing system is according to preset data processing formula
The comparison threshold value obtained after all power datas are uniformly processed；
Comparison threshold value that step 2 obtains is and the real-time power data that obtain in step 2 by step 3, computer processing system
It successively compares, is confirmed whether the photovoltaic panel for having power variation abnormality；
Step 4, computer processing system carry out automatic Calibration to the position for abnormal data occur, twice in succession after calibration certainly
It is dynamic to submit a report asking for manual inspection.
The data obtained in the step 1 further include corresponding Position Number data, can be directly fixed by Position Number
The position of position photovoltaic panel.
Data processing method in the step 2 are as follows: instant function is calculated according to voltage and current data in the first step
Rate data；Then second step will remove 3% minimum data and 3% highest number after the sequence of obtained all panel power datas
According to；Remaining data progress mathematic(al) mean is obtained average value by third step；4th step, by the obtained mathematical mean of third step
Comparison threshold value is obtained multiplied by corresponding coefficient.The influence that can exclude abnormal data in this way obtains more believable support
Data establish comparison threshold value
The coefficient is 0.9, and the too small panel for being easy to have already appeared problem of coefficient cannot find that coefficient is too big in time, then can
There is more fluctuation distracter.
The acquisition period of data is that 30minn is primary in the step 1, and the calculation power for reducing center calculation machine control system is negative
Lotus reduces equipment cost.
The instant electric current and voltage data acquisition mode is to be separately connected direct current on photovoltaic panel circuit of output terminal
Voltage sensor and DC current sensor, each direct current voltage sensor and current sensor and computer disposal system
System is electrically connected, and computer processing system can obtain all panels in the operating condition number at same time point simultaneously in this way
According to.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of photovoltaic panel monitoring of working condition method of photovoltaic plant, which is characterized in that the photovoltaic panel shape of the photovoltaic plant
Condition monitoring method the following steps are included:
Step 1, periodically obtain detection zone in all photovoltaic panels the same time instant voltage and current data；
Step 2, the electric current that step 1 is obtained and voltage data difference simultaneous transmission are to computer processing system, at computer
Reason system first calculates the real-time power of corresponding photovoltaic panel according to the data obtained, and then computer processing system is according to preset number
The comparison threshold value obtained after all power datas are uniformly processed according to processing method；
Comparison threshold value that step 2 obtains is and the real-time power data that obtain in step 2 by step 3, computer processing system
It successively compares, is confirmed whether the photovoltaic panel for having power variation abnormality；
Step 4, computer processing system carry out automatic Calibration to the position for abnormal data occur, twice in succession after calibration certainly
It is dynamic to submit a report asking for manual inspection.
2. the photovoltaic panel monitoring of working condition method of photovoltaic plant according to claim 1, which is characterized in that the step 1
The data of middle acquisition further include corresponding Position Number data.
3. the photovoltaic panel monitoring of working condition method of photovoltaic plant according to claim 1, which is characterized in that the step 2
In data processing method include the following contents are as follows:
The real-time power data of each panel are calculated according to voltage and current data for the first step；
Then second step will remove 3% ~ 5% minimum data and 3% ~ 5% highest after the sequence of obtained all panel power datas
Data；
Remaining data progress mathematic(al) mean is obtained average value by third step；
The obtained mathematical mean of third step is obtained comparison threshold value multiplied by corresponding coefficient by the 4th step.
4. the photovoltaic panel monitoring of working condition method of photovoltaic plant according to claim 3, which is characterized in that the coefficient is
0.8~0.9。
5. the photovoltaic panel monitoring of working condition method of photovoltaic plant according to claim 1, which is characterized in that the step 1
The acquisition period of middle data is that 30min ~ 60min is primary.
6. the photovoltaic panel monitoring of working condition method of photovoltaic plant according to claim 1, which is characterized in that described is instant
Electric current and voltage data acquisition mode are to be separately connected direct current voltage sensor and direct current on photovoltaic panel circuit of output terminal
Flow sensor, each direct current voltage sensor and current sensor are electrically connected with computer processing system.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112234941A (en) * | 2020-08-28 | 2021-01-15 | 南京瑞贻电子科技有限公司 | Method for detecting working condition of photovoltaic panel |
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