CN104537450A - Power prediction system of distributed photovoltaic power generation system - Google Patents
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Abstract
The invention discloses a power prediction system of a distributed photovoltaic power generation system. The power prediction system comprises a meteorological data processing terminal, a distributed photovoltaic monitoring device and a power prediction server, wherein the meteorological data processing terminal is used for receiving and refining weather data and obtaining downscaling weather data; the distributed photovoltaic monitoring device is used for collecting operation data of the photovoltaic power generation system; and the power prediction server is used for receiving the downscaling weather data and the operation data of the photovoltaic power generation system and carrying out power prediction on the photovoltaic power generation system by taking the downscaling weather data and the operation data of the photovoltaic power generation system as parameters. Power prediction of the photovoltaic power generation system within the area can be achieved through the meteorological data processing terminal, the distributed photovoltaic monitoring device and the power prediction server, so that the working stability and safety of a power grid in the overall area are ensured.
Description
Technical field
The present invention relates to distributed photovoltaic electric system electric power prediction field, particularly relate to a kind of power prediction system of distributed photovoltaic power generation system.
Background technology
Along with the continuous minimizing of global natural resources, increasing country is devoted to Development of Novel clean energy resource.At present, some areas of China start to arrange photovoltaic generating system, utilize the photovoltaic effect of solar cell semiconductor material, and solar radiation directly can be converted to electric energy.
Present most photovoltaic generating system is centralized photovoltaic plant, and, at centralized photovoltaic plant, be often deployed with generated power forecasting system.But in the occasion of some small-scale power generation, do not use centralized photovoltaic generation, but take distributed photovoltaic power generation system.
Distributed photovoltaic power generation small scale, does not often arrange power prediction system.But when a large amount of and distributed photovoltaic power generation system access electrical network of dispersion, can have an impact to Electric Power Network Planning.Distributed photovoltaic is incorporated to public electric wire net, increases the load prediction difficulty of its region, changes existing load growth pattern.The access of a large amount of distributed power sources, makes the transformation of power distribution network and management become more complicated.If do not carry out power prediction to it, stability and the security of whole regional power grid work so will be disturbed.
Therefore, how to realize the power prediction of distributed photovoltaic power generation system, to ensure that stability and the security of whole regional power grid work are problem demanding prompt solutions.
Summary of the invention
The object of this invention is to provide a kind of power prediction system of distributed photovoltaic power generation system, to realize the power prediction to distributed photovoltaic power generation system, and then ensure stability and the security of whole regional power grid work.
A power prediction system for distributed photovoltaic power generation system, comprising:
Process meteorological data terminal, for receiving and the weather data that becomes more meticulous, obtains the weather data of NO emissions reduction;
Distributed photovoltaic supervising device, for gathering photovoltaic generating system service data; With
Power prediction server, for receiving the weather data of described NO emissions reduction and described photovoltaic generating system service data and using the weather data of described NO emissions reduction and described photovoltaic generating system service data as parameter, carrying out power prediction to described photovoltaic generating system.
Preferably, also comprise:
Reverse network isolating device, for monitoring the weather data of described NO emissions reduction, transfers to described power prediction server by the weather data of legal described NO emissions reduction.
Preferably, also comprising: teller work station, carrying out the result of power prediction for showing described power prediction system.
Preferably, described process meteorological data terminal comprises:
Numerical weather forecast data reception module, for receiving numerical weather forecast data; With
Real time meteorological data receiver module, for receiving real time meteorological data.
Preferably, described numerical weather forecast data comprise: irradiance, wind speed, wind direction, air pressure, temperature and humidity.
Preferably, the temporal resolution of numerical weather forecast data reception module is: 15 minutes.
Preferably, the timeliness length of numerical weather forecast data reception module is: 168 hours.
Preferably, described power prediction system proceeds power prediction under the state of photovoltaic generating system disorderly closedown.
Preferably, connected by local area network communication between described process meteorological data terminal, distributed photovoltaic supervising device and power prediction server.
Preferably, described distributed photovoltaic supervising device is provided with fire wall.
Therefore, the present invention has following beneficial effect:
Power prediction system provided by the invention comprises process meteorological data terminal, for receiving and the weather data that becomes more meticulous, obtains the weather data of NO emissions reduction; Distributed photovoltaic supervising device, for gathering photovoltaic generating system service data; Power prediction server, for receiving the weather data of described NO emissions reduction and described photovoltaic generating system service data and using the weather data of described NO emissions reduction and described photovoltaic generating system service data as parameter, carrying out power prediction to described photovoltaic generating system.The present invention realizes the power prediction of photovoltaic generating system in one's respective area by above-mentioned process meteorological data terminal, distributed photovoltaic supervising device and power prediction server, thus reaches the whole stability of regional power grid work of guarantee and the object of security.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the power prediction system of a kind of distributed photovoltaic power generation system provided by the invention;
Fig. 2 is the structural representation of the power prediction system of another kind of distributed photovoltaic power generation system provided by the invention.
Embodiment
Core of the present invention is to provide a kind of power prediction system of distributed photovoltaic power generation system.
In order to make those skilled in the art person understand the solution of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here to implement with multiple, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention.Therefore the present invention is not by the restriction of following public concrete enforcement.
The invention discloses a kind of power prediction system of distributed photovoltaic power generation system, see Fig. 1, this embodiment comprises following content:
Process meteorological data terminal 10, for receiving and the weather data that becomes more meticulous, obtains the weather data of NO emissions reduction.
Weather environment data are the important indicators determining solar electrical energy generation, play decisive role to solar electrical energy generation quality.Such as, under different weather patterns, the generated output curve of photovoltaic generating system is diverse, and it is different that different weather also can make the spike of generated output curve go out now.Therefore, when carrying out power prediction to photovoltaic generating system, need to gather local weather data.
It should be noted that, process meteorological data terminal, after receiving weather data, carries out NO emissions reduction process, makes this weather data refinement, thus improves the precision of weather forecast.
Distributed photovoltaic supervising device 20, for gathering photovoltaic generating system service data.
Concrete, predict the electric power of photovoltaic generating system, need the historical data of the generated energy of this photovoltaic generating system as a reference, comprehensive weather data carries out the power prediction of photovoltaic generating system.
Power prediction server 30, for receiving the weather data of described NO emissions reduction and described photovoltaic generating system service data and using the weather data of described NO emissions reduction and described photovoltaic generating system service data as parameter, carrying out power prediction to described photovoltaic generating system.
The present invention realizes the power prediction of photovoltaic generating system in one's respective area by above-mentioned process meteorological data terminal, distributed photovoltaic supervising device and power prediction server, thus reaches the whole stability of regional power grid work of guarantee and the object of security.
The invention also discloses a kind of power prediction system of distributed photovoltaic power generation system, see Fig. 2, this embodiment comprises following content:
Process meteorological data terminal 10, for receiving and the weather data that becomes more meticulous, obtains the weather data of NO emissions reduction.
In a specific embodiment, described process meteorological data terminal comprises with lower part:
Numerical weather forecast data reception module, for receiving numerical weather forecast data.
Real time meteorological data receiver module, for receiving real time meteorological data.
Numerical weather forecast to analyze atmospheric condition by mathematical physics pattern and calculates the method for weather forecast, and it is a kind of weather forecast method of the current whole world in widespread use.It sets up system of equations according to the hydromechanics and thermodynamic principles that describe air motion rule, after determining the original state of air sometime, just solves by mathematical method, calculates the state of certain time air.In a specific embodiment, numerical weather forecast data comprise: irradiance, wind speed, wind direction, air pressure, temperature and humidity.
In other examples, the temporal resolution of numerical weather forecast data reception module is 15 minutes.The timeliness length of numerical weather forecast data reception module is 168 hours.
Data due to numerical weather forecast are one of principal elements affecting power prediction precision, and therefore, its temporal resolution can be corresponding with the collection period of photovoltaic generating system realtime power, arranges identical temporal resolution.
Distributed photovoltaic supervising device 20, for gathering photovoltaic generating system service data.
Concrete, in one embodiment, described distributed photovoltaic supervising device is provided with fire wall.The distributed photovoltaic supervising device being provided with fire wall can transmit to safety and reliability the photovoltaic generating system service data collected.
Under an application scenarios, distributed photovoltaic supervising device gathers voltage, the simulated data such as electric current and electric power of corresponding photovoltaic generating system, can also gather the status datas such as the on off state of described photovoltaic generating system, abnormal signal.Certainly, it should be noted that, under other scene, also can gather other data according to actual conditions, the present invention does not limit at this.
Power prediction server 30, for receiving the weather data of described NO emissions reduction and described photovoltaic generating system service data and using the weather data of described NO emissions reduction and described photovoltaic generating system service data as parameter, carrying out power prediction to described photovoltaic generating system.
Concrete, power prediction server, by calculating, is predicted the output power of single photovoltaic generating system, also can be calculated the comprehensive output power of multiple photovoltaic generating system in certain area.Therefore, furthermore achieved that the concentrated prediction of this area dispatching of power netwoks to the generated output of the distributed photovoltaic power generation system within the scope of one's respective area.
Reverse network isolating device 40, for monitoring the weather data of described NO emissions reduction, transfers to described power prediction server by the weather data of legal described NO emissions reduction.
Concrete, in order to ensure the security of prognoses system, and meet the requirement of State Grid Corporation of China to photovoltaic generation security, reverse network isolating device is set between power prediction server and weather data processing terminal.Reverse network isolating device realizes isolation physically on hardware, on software, adopt synthetic filter, access control, application proxy, etc. technology realize Network Isolation.While guarantee network transparency, achieve the isolation to invalid information.
In other examples, described power prediction system disclosed by the invention also comprises teller work station, carries out the result of power prediction for showing described power prediction system.
In a concrete application scenarios, after user logs in this teller work station, the geographic distribution situation of each photovoltaic generating system can be seen, and power prediction system is predicted to the realtime power of each photovoltaic generating system.Meanwhile, the result of display according to actual conditions, can refresh a display page at set intervals.Concrete, refresh interval can be set to 1 minute to 5 minutes.Certainly, in the present invention, just list concrete example, do not refer to that refresh interval can only at 1 minute to 5 minutes.In addition, the refresh cycle that can arrange predicted power is 15 minutes.Certainly, the refresh cycle of predicted power is relevant with to the collection period of photovoltaic generating system realtime power, therefore, can arrange accordingly.
Certainly, the mode of display can be prediction curve can be also list, provides the predicted data in certain hour.A concrete example is, user shows the predicted data in 4 days after logging in, and can data list everywhere.
In other scene, according to actual needs, also can show Weather information.Concrete, such as displays temperature curve, moisture curve, cloud amount curve and weather forecast etc.Its display mode also can be report form.The present invention does not limit at this.Certainly, the content of display can also comprise some statistical informations and report messages.Certainly, for whole prognoses system, the such as corresponding technical parameter of photovoltaic generating system, the use record etc. of teller work station can also be shown.
In a specific embodiment, described power prediction system proceeds power prediction under the state of photovoltaic generating system disorderly closedown.In a practical situation, there will be disorderly closedown phenomenon, such as photovoltaic generating system maintenance or fault, and these disorderly closedown phenomenons can affect the generating capacity of distributed photovoltaic power generation system.Therefore, under the state of distributed photovoltaic power generation system disorderly closedown, support power prediction, the generated output that accurately estimation is recent, to guarantee the security that whole regional power system runs.
Under a concrete scene, connected by local area network communication between described process meteorological data terminal, distributed photovoltaic supervising device and power prediction server.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.
Be described in detail provided by the present invention above.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands principle of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a power prediction system for distributed photovoltaic power generation system, is characterized in that, comprising:
Process meteorological data terminal, for receiving and the weather data that becomes more meticulous, obtains the weather data of NO emissions reduction;
Distributed photovoltaic supervising device, for gathering photovoltaic generating system service data; With
Power prediction server, for receiving the weather data of described NO emissions reduction and described photovoltaic generating system service data and using the weather data of described NO emissions reduction and described photovoltaic generating system service data as parameter, carrying out power prediction to described photovoltaic generating system.
2. power prediction system according to claim 1, is characterized in that, also comprise:
Reverse network isolating device, for monitoring the weather data of described NO emissions reduction, transfers to described power prediction server by the weather data of legal described NO emissions reduction.
3. power prediction system according to claim 1 and 2, is characterized in that, also comprise: teller work station, carries out the result of power prediction for showing described power prediction system.
4. power prediction system according to claim 3, is characterized in that, described process meteorological data terminal comprises:
Numerical weather forecast data reception module, for receiving numerical weather forecast data; With
Real time meteorological data receiver module, for receiving real time meteorological data.
5. power prediction system according to claim 4, is characterized in that, described numerical weather forecast data comprise: irradiance, wind speed, wind direction, air pressure, temperature and humidity.
6. power prediction system according to claim 4, is characterized in that, the temporal resolution of numerical weather forecast data reception module is: 15 minutes.
7. power prediction system according to claim 6, is characterized in that, the timeliness length of numerical weather forecast data reception module is: 168 hours.
8. power prediction system according to claim 1 and 2, is characterized in that, described power prediction system proceeds power prediction under the state of photovoltaic generating system disorderly closedown.
9. power prediction system according to claim 1 and 2, is characterized in that, is connected between described process meteorological data terminal, distributed photovoltaic supervising device and power prediction server by local area network communication.
10. power prediction system according to claim 1 and 2, is characterized in that, described distributed photovoltaic supervising device is provided with fire wall.
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Cited By (13)
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| CN105139104A (en) * | 2015-07-27 | 2015-12-09 | 上海许继电气有限公司 | System and method for operating data analysis of component in photovoltaic power station |
| CN105825302A (en) * | 2016-03-17 | 2016-08-03 | 中车株洲电力机车研究所有限公司 | Photovoltaic power station power prediction system based on cloud platform |
| CN106374831A (en) * | 2016-09-26 | 2017-02-01 | 国电南瑞科技股份有限公司 | Distributed photovoltaic monitoring system with power generation forecasting and monitoring method |
| CN106897784A (en) * | 2015-12-18 | 2017-06-27 | 中国电力科学研究院 | A kind of distributed photovoltaic power generation power forecasting method based on line modeling |
| CN107153892A (en) * | 2017-05-12 | 2017-09-12 | 沈阳工程学院 | Distributed wind and optical energy integrated generated power forecasting system |
| CN107688906A (en) * | 2017-09-04 | 2018-02-13 | 北京玖天气象科技有限公司 | The transmission line of electricity meteorological element NO emissions reduction analysis system and method for multi-method fusion |
| CN108256665A (en) * | 2017-12-01 | 2018-07-06 | 武汉华信联创技术工程有限公司 | A kind of new energy power station meteorology integrated service system and method |
| WO2018129828A1 (en) * | 2017-01-11 | 2018-07-19 | 沃太能源南通有限公司 | Photovoltaic power generation predicting system and prediction method |
| CN109444624A (en) * | 2018-10-23 | 2019-03-08 | 塔里木大学 | A kind of distributed photovoltaic power generation system dynamic power forecasting system |
| CN109711055A (en) * | 2018-12-27 | 2019-05-03 | 国网电子商务有限公司 | Evaluation method, device and the electronic equipment of photovoltaic power station power generation power |
| CN113572425A (en) * | 2021-08-27 | 2021-10-29 | 黄睿 | Power prediction system applied to distributed photovoltaic power generation |
| CN113591297A (en) * | 2021-07-27 | 2021-11-02 | 河海大学 | Short wave radiation and air temperature downscaling method, device and storage medium |
| CN116722544A (en) * | 2023-08-02 | 2023-09-08 | 北京弘象科技有限公司 | Distributed photovoltaic short-term prediction method and device, electronic equipment and storage medium |
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| CN105139104B (en) * | 2015-07-27 | 2019-05-07 | 上海许继电气有限公司 | System and method for photovoltaic plant inner assembly Operational Data Analysis |
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| CN107688906A (en) * | 2017-09-04 | 2018-02-13 | 北京玖天气象科技有限公司 | The transmission line of electricity meteorological element NO emissions reduction analysis system and method for multi-method fusion |
| CN107688906B (en) * | 2017-09-04 | 2021-11-09 | 北京玖天气象科技有限公司 | Multi-method fused transmission line meteorological element downscaling analysis system and method |
| CN108256665A (en) * | 2017-12-01 | 2018-07-06 | 武汉华信联创技术工程有限公司 | A kind of new energy power station meteorology integrated service system and method |
| CN109444624A (en) * | 2018-10-23 | 2019-03-08 | 塔里木大学 | A kind of distributed photovoltaic power generation system dynamic power forecasting system |
| CN109711055A (en) * | 2018-12-27 | 2019-05-03 | 国网电子商务有限公司 | Evaluation method, device and the electronic equipment of photovoltaic power station power generation power |
| CN113591297A (en) * | 2021-07-27 | 2021-11-02 | 河海大学 | Short wave radiation and air temperature downscaling method, device and storage medium |
| CN113572425A (en) * | 2021-08-27 | 2021-10-29 | 黄睿 | Power prediction system applied to distributed photovoltaic power generation |
| CN116722544A (en) * | 2023-08-02 | 2023-09-08 | 北京弘象科技有限公司 | Distributed photovoltaic short-term prediction method and device, electronic equipment and storage medium |
| CN116722544B (en) * | 2023-08-02 | 2023-10-20 | 北京弘象科技有限公司 | Distributed photovoltaic short-term prediction method and device, electronic equipment and storage medium |
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Application publication date: 20150422 |