CN115293370A - Digital integrated operation and maintenance management system of distributed photovoltaic power station - Google Patents
Digital integrated operation and maintenance management system of distributed photovoltaic power station Download PDFInfo
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Abstract
The invention relates to the technical field of building monitoring, in particular to a digital integrated operation and maintenance management system of a distributed photovoltaic power station. The method comprises the following steps: the intelligent monitoring module is used for providing monitoring data, the energy efficiency evaluation module is used for receiving the monitoring data and uploading prediction result data to the intelligent monitoring module based on the monitoring data, the power prediction module is used for receiving the monitoring data and uploading evaluation result data to the intelligent monitoring module based on the monitoring data, the diagnosis operation and maintenance module is used for receiving the monitoring data and uploading diagnosis result data to the intelligent monitoring module based on the monitoring data, the intelligent monitoring module is further used for establishing a photovoltaic online interval prediction model based on the prediction result data, the evaluation result data and the diagnosis result data, and dynamic prediction is carried out on distributed photovoltaic output power according to the prediction model. The digital integrated operation and maintenance management system of the distributed photovoltaic power station has the advantages of high efficiency, economy and the like.
Description
Technical Field
The invention relates to the technical field of power monitoring, in particular to a digital integrated operation and maintenance management system of a distributed photovoltaic power station.
Background
At present, although various information management systems are introduced into a photovoltaic power station to improve service levels, such as a photovoltaic monitoring system, operation and maintenance services of the power station still need to be processed in a manual mode, and the operation and maintenance processes of the distributed photovoltaic power station cannot be completely recorded. In addition, because of various types and numbers of power generation equipment, and lack of effective means and measures, operation and maintenance personnel can only passively handle faults and cannot timely operate and maintain. For a large amount of repeated equipment operation and maintenance problems, operation and maintenance personnel waste a large amount of time and energy, and the efficiency of operation and maintenance work is low. In addition, in order to ensure safe and reliable operation of the photovoltaic power generation installation, operation and maintenance personnel are often required to watch for 24 hours to deal with emergency situations, and the problems of high operation and maintenance cost, low efficiency, complicated process and the like are caused by the problems of professional level of the operation and maintenance personnel, distribution geographic positions of power stations and the like.
Disclosure of Invention
The invention aims to provide a digital integrated operation and maintenance management system of a distributed photovoltaic power station, which is based on the design concept of intelligent operation and maintenance management of the photovoltaic power station, constructs a photovoltaic power generation real-time monitoring and information acquisition system, intelligently diagnoses and operates equipment faults of the photovoltaic power station, accurately predicts distributed photovoltaic power, comprehensively evaluates operation performance and energy efficiency of the distributed photovoltaic power station, and researches key technologies of a digital integrated management and control platform of the distributed photovoltaic power station.
The invention solves the problems that in the prior art, systems are mutually independent, basic data information cannot be shared, and serious information isolated island phenomenon exists.
The invention improves the problems of large inspection workload, low maintenance and operation efficiency and difficult timely discovery of equipment problems caused by diverse stations and personnel dispersion in the prior art, and realizes timely response to faults and early elimination of the faults by carrying out real-time monitoring and early warning on scattered power stations and using an online data guide line for operation and maintenance.
In order to achieve the purpose, the invention provides the following technical scheme:
a digital integrated operation and maintenance management system of a distributed photovoltaic power station comprises: an intelligent monitoring module, an energy efficiency evaluation module, a power prediction module and a diagnosis operation and maintenance module,
the intelligent monitoring module is used for providing monitoring data;
the energy efficiency evaluation module is used for receiving the monitoring data and uploading prediction result data to the intelligent monitoring module based on the monitoring data;
the power prediction module is used for receiving the monitoring data and uploading evaluation result data to the intelligent monitoring module based on the monitoring data;
the diagnosis operation and maintenance module is used for receiving the monitoring data and uploading diagnosis result data to the intelligent monitoring module based on the monitoring data;
the intelligent monitoring module is also used for establishing a photovoltaic online interval prediction model based on the prediction result data, the evaluation result data and the diagnosis result data, and dynamically predicting the distributed photovoltaic output power according to the prediction model.
In some embodiments of the present application, the intelligent monitoring module comprises: the system comprises a data acquisition module, a data processing module and a monitoring software module;
the data acquisition module is used for acquiring the environmental meteorological parameters of the digital integrated operation and maintenance management system of the distributed photovoltaic power station in real time during working, wherein the environmental meteorological parameters comprise: the solar energy collecting system comprises a temperature data, solar radiation intensity data and wind speed data, wherein the temperature data, the solar radiation intensity data and the wind speed data are converted into standard 4-20mA or 1-5V electric signals based on a sensor, and a data collecting module is also used for collecting the working voltage and the working current of a solar cell panel in real time;
the data processing module is used for controlling the digital integrated operation and maintenance management system of the distributed photovoltaic power station based on the working voltage and the working current and enabling the digital integrated operation and maintenance management system of the distributed photovoltaic power station to keep the maximum output power;
the monitoring software module comprises a cloud monitoring module and a local monitoring module, the cloud monitoring module is used for carrying out remote data monitoring and intelligent control on a digital integrated operation and maintenance management system of the distributed photovoltaic power station, the digital integrated operation and maintenance management system of the distributed photovoltaic power station stores power generation state data through a cloud database, the local monitoring module is used for carrying out local data monitoring and intelligent control on the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and the local monitoring module is further used for providing a human-computer interaction interface so as to monitor the digital integrated operation and maintenance management system of the distributed photovoltaic power station.
In some embodiments of the present application, the monitoring software module is further configured to monitor a circuit breaker, an isolating switch, a grounding switch, a transformer, a capacitor, power consumption of an ac/dc station and its auxiliary equipment, a protection signal, and various device status signals of the digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the cloud monitoring module is also used for remotely controlling all circuit breakers, electric isolating switches, electric grounding disconnecting switches and main transformer on-load voltage regulating switches.
In some embodiments of the present application, the energy efficiency evaluation module includes: the device layer module, the display layer module and the platform layer module;
the equipment layer module is used for providing evaluation data for energy efficiency evaluation for a digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the platform layer module is used for calculating and managing the evaluation data;
the display layer module is used for visually displaying the energy efficiency evaluation result of the digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the device layer module, the platform layer module and the display layer module are connected through Ethernet, the device layer module transmits data for energy efficiency evaluation to a server of the platform layer module through Ethernet, and the platform layer module transmits an analysis result of the data to the server of the display layer module through Ethernet.
In some embodiments of the present application, the device layer module includes a distributed power supply device, an energy metering terminal, an environment monitoring device, and a data collector;
the system comprises a distributed power supply device, an energy metering terminal, an environment monitoring device, a platform layer module, a power grid, an energy grid point, an energy storage inverter, an environment monitoring device and a data collector, wherein the distributed power supply device is used for providing running states of the photovoltaic inverter and the energy storage inverter for a digital integrated operation and maintenance management system of a distributed photovoltaic power station, the energy metering terminal is used for providing electric quantity transmitted to the power grid by the grid point for the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and electric quantity and load power consumption obtained from the power grid by the grid point, the environment monitoring device is used for providing environment temperature and irradiation intensity for the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and the data collector is used for analyzing data of the distributed power supply device, the energy metering terminal and the environment monitoring device and sending the data to the platform layer module;
the platform layer module comprises cloud platform equipment;
the platform layer module is used for providing data analysis and data management functions for a digital integrated operation and maintenance management system of the distributed photovoltaic power station and sending a data analysis result to the display layer module.
In some embodiments of the present application, the power prediction module includes a station system, a security access area, and a grid dispatch center,
the station system comprises a real-time power acquisition system and a real-time weather acquisition system, wherein the real-time power acquisition system and the real-time weather acquisition system are used for acquiring power and weather data in real time and transmitting the power and weather data to a front-end server in a security access area through a communication network for preliminary data processing, the front-end server is used for transmitting the preliminarily processed real-time power and weather data to a power grid dispatching center, the power grid dispatching center comprises a data application server and a management workstation, the data application server comprises an Adaboost algorithm module and a future weather forecast module, the Adaboost algorithm module is used for receiving the preliminarily processed real-time power and weather data transmitted by the front-end server, the future weather forecast module is used for transmitting the future weather forecast data to the Adaboost algorithm module, and the Adaboost algorithm module is further used for carrying out combined analysis and prediction on the future forecast data, the real-time power and the weather data to obtain a prediction result, and transmitting the prediction result to the management workstation.
In some embodiments of the present application, the front-end server transmits real-time power and meteorological data to a grid dispatch center through a reverse physical isolation device;
the prediction result is a photovoltaic power prediction result of 0-6 hours in the future.
In some embodiments of the present application, the diagnostic operation module comprises: the system comprises a fault data processing module and a fault data diagnosis module;
the fault data processing module is used for acquiring and transmitting fault data information of a digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the fault data diagnosis module is used for diagnosing the fault type of a digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, wherein the fault type comprises at least one of meteorological alarm, open circuit fault alarm, short circuit fault alarm and energy efficiency loss.
In some embodiments of the present application, the real-time fault diagnosis module comprises:
the data preprocessing module is used for checking meteorological data information according to the fault data information;
the fault data processing module is used for receiving the fault data information, judging the fault type of the digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, and generating a corresponding control signal according to the fault type, wherein the control signal comprises at least one of a normal signal, an open circuit signal, a short circuit signal and an energy efficiency loss signal;
the energy efficiency loss evaluation module is used for receiving the energy efficiency loss signal and determining the energy efficiency loss grade of the digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, and the energy efficiency loss grade is divided into three grades from high to low according to the fault data information, wherein the three grades comprise primary energy efficiency loss, secondary energy efficiency loss and tertiary energy efficiency loss.
In some embodiments of the application, the diagnostic operation and maintenance module is further configured to adjust and control the energy efficiency evaluation module and the power prediction module in real time according to the prediction result data and the evaluation result data, so that an error value between the prediction result data and the evaluation result data does not exceed a preset value.
The invention provides a digital integrated operation and maintenance management system of a distributed photovoltaic power station, which has the beneficial effects that compared with the prior art:
(1) The method and the system automatically acquire and store necessary power generation related data information and meteorological information and provide the data information and the meteorological information for users to look up, so that manual monitoring is omitted, manpower and material resources are saved, potential safety hazards are reduced, and economic benefits are improved;
(2) The photovoltaic power generation system also provides reference for power dispatching and management through the prediction result of the photovoltaic power generation power, relieves the pressure of a power grid, and is beneficial to improving the stability and the safety of a regional power system;
(3) The invention also constructs an intelligent photovoltaic energy efficiency management platform, breaks through the distributed photovoltaic information isolated island, establishes a standardized operation and maintenance management system, eliminates the condition of the information isolated island by the three-dimensional integrated technical scheme of real-time data acquisition, field configuration monitoring and cloud platform data analysis, improves the interactivity among data and greatly improves the working efficiency.
Drawings
Fig. 1 is a block diagram of a digital integrated operation and maintenance management system of a distributed photovoltaic power plant according to the present invention.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected to each other through an intermediate member. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
With the increase of installed capacity and scale of photovoltaic power generation year by year in China, the operation and maintenance level and means of most power stations are far lower than the construction speed of the power stations, and more photovoltaic power stations face the operation and maintenance problem. At present, although various information management systems are introduced into a photovoltaic power station to improve service levels, such as a photovoltaic monitoring system, operation and maintenance services of the power station still need to be processed in a manual mode, and the operation and maintenance processes of a distributed photovoltaic power station cannot be completely recorded. In addition, because of the variety and the number of the power generation equipment, operation and maintenance personnel can only passively process faults due to the lack of effective means and measures, and cannot operate and maintain in time. For a large amount of repeated equipment operation and maintenance problems, operation and maintenance personnel waste a large amount of time and energy, and the efficiency of operation and maintenance work is low. In addition, in order to ensure the safe and reliable operation of the photovoltaic power generation installation, operation and maintenance personnel are often required to guard 24 hours to deal with the emergency situation, and the problems of high operation and maintenance cost, low efficiency, complicated process and the like are caused by the problems of professional level of the operation and maintenance personnel, distribution geographical positions of the power station and the like.
Therefore, the invention provides a digital integrated operation and maintenance management system of a distributed photovoltaic power station, based on the design concept of intelligent operation and maintenance management of the photovoltaic power station, by constructing an intelligent photovoltaic energy efficiency management platform, getting through a distributed photovoltaic information island, establishing a standardized operation and maintenance management system, and by a three-dimensional integrated technical scheme of real-time data acquisition, field configuration monitoring and cloud platform data analysis, real-time monitoring and early warning of faults of scattered power stations are realized, and by a mode of operation and maintenance under an online data guide line, timely response to the faults and early elimination of the faults are realized, so that a digital, networked and intelligent operation and maintenance management mode of the distributed photovoltaic power station is promoted.
Referring to fig. 1, a digital integrated operation and maintenance management system of a distributed photovoltaic power station is provided in the disclosed embodiment of the present invention, including: an intelligent monitoring module, an energy efficiency evaluation module, a power prediction module and a diagnosis operation and maintenance module,
the intelligent monitoring module is used for providing monitoring data;
the energy efficiency evaluation module is used for receiving the monitoring data and uploading prediction result data to the intelligent monitoring module based on the monitoring data;
the power prediction module is used for receiving the monitoring data and uploading evaluation result data to the intelligent monitoring module based on the monitoring data;
the diagnosis operation and maintenance module is used for receiving the monitoring data and uploading diagnosis result data to the intelligent monitoring module based on the monitoring data;
the intelligent monitoring module is also used for establishing a photovoltaic online interval prediction model based on the prediction result data, the evaluation result data and the diagnosis result data, and dynamically predicting the distributed photovoltaic output power according to the prediction model.
In a specific embodiment of the present application, the intelligent monitoring module includes: the system comprises a data acquisition module, a data processing module and a monitoring software module;
the data acquisition module is used for gathering the environmental meteorological parameter of distributed photovoltaic power plant's digital integration operation and maintenance management system during operation in real time, and wherein, the environmental meteorological parameter includes: the temperature data, the solar radiation intensity data and the wind speed data are converted into standard 4-20mA or 1-5V electric signals based on the sensor, and the data acquisition module is also used for acquiring the working voltage and the working current of the solar cell panel in real time;
the data processing module is used for controlling the digital integrated operation and maintenance management system of the distributed photovoltaic power station based on the working voltage and the working current and keeping the digital integrated operation and maintenance management system of the distributed photovoltaic power station at the maximum output power;
the monitoring software module comprises a cloud monitoring module and a local monitoring module, the cloud monitoring module is used for carrying out remote data monitoring and intelligent control on the digital integrated operation and maintenance management system of the distributed photovoltaic power station, the power generation state data of the digital integrated operation and maintenance management system of the distributed photovoltaic power station are stored in the cloud database, the local monitoring module is used for carrying out local data monitoring and intelligent control on the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and the local monitoring module is further used for providing a human-computer interaction interface to monitor the digital integrated operation and maintenance management system of the distributed photovoltaic power station.
In a specific embodiment of the present application, the monitoring software module is further configured to monitor a circuit breaker, an isolating switch, a grounding switch, a transformer, a capacitor, power consumption of an ac/dc station and auxiliary equipment thereof, a protection signal, and status signals of various devices of a digital integrated operation and maintenance management system of a distributed photovoltaic power station;
the cloud monitoring module is also used for remotely controlling all circuit breakers, electric isolating switches, electric grounding disconnecting links and main transformer on-load voltage regulating switches.
In a specific embodiment of the present application, the energy efficiency evaluation module includes: the device layer module, the display layer module and the platform layer module;
the device layer module is used for providing evaluation data for energy efficiency evaluation for a digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the platform layer module is used for calculating and managing the evaluation data;
the display layer module is used for visually displaying the energy efficiency evaluation result of the digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the device layer module, the platform layer module and the display layer module are connected through the Ethernet, the device layer module transmits data used for energy efficiency evaluation to a server of the platform layer module through the Ethernet, and the platform layer module transmits an analysis result of the data to the server of the display layer module through the Ethernet.
In a specific embodiment of the present application, the device layer module includes a distributed power device, an energy metering terminal, an environment monitoring device, and a data acquisition device;
the system comprises distributed power supply equipment, an energy storage inverter, an environment monitoring equipment, a platform layer module, a power grid, an energy management terminal, a power grid, a data acquisition unit and a platform layer module, wherein the distributed power supply equipment is used for providing a photovoltaic inverter and an energy storage inverter running state for a digital integrated operation and maintenance management system of a distributed photovoltaic power station, the energy metering terminal is used for providing electric quantity transmitted to the power grid by a grid-connected point, the electric quantity obtained from the power grid by the grid-connected point and load power consumption for the digital integrated operation and maintenance management system of the distributed photovoltaic power station, the environment monitoring equipment is used for providing environment temperature and irradiation intensity for the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and the data acquisition unit is used for analyzing data of the distributed power supply equipment, the energy metering terminal and the environment monitoring equipment and sending the data to the platform layer module;
the platform layer module comprises a cloud platform device;
the platform layer module is used for providing data analysis and data management functions for a digital integrated operation and maintenance management system of the distributed photovoltaic power station and sending a data analysis result to the display layer module.
In one embodiment of the present application, the power prediction module includes a station system, a security access area, and a grid dispatch center,
the field station system comprises a real-time power acquisition system and a real-time weather acquisition system, wherein the real-time power acquisition system and the real-time weather acquisition system are used for acquiring power and weather data in real time and transmitting the power and weather data to a front-end server in a security access area through a communication network for primary data processing, the front-end server is used for transmitting the primarily processed real-time power and weather data to a power grid dispatching center, the power grid dispatching center comprises a data application server and a management workstation, the data application server comprises an Adaboost algorithm module and a future weather forecast module, the Adaboost algorithm module is used for receiving the primarily processed real-time power and weather data transmitted by the front-end server, the future weather forecast module is used for transmitting the future weather forecast data to the Adaboost algorithm module, and the Adaboost algorithm module is also used for carrying out combined analysis and forecast on the future weather forecast data, the real-time power and the weather data to obtain a forecast result, and transmitting the forecast result to the management workstation.
In a specific embodiment of the present application, the front-end server transmits real-time power and meteorological data to the grid dispatch center through the reverse physical isolation device;
the prediction result is the photovoltaic power prediction result of 0-6 hours in the future.
In one embodiment of the present application, the diagnostic operation module includes: the system comprises a fault data processing module and a fault data diagnosis module;
the fault data processing module is used for acquiring and transmitting fault data information of a digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the fault data diagnosis module is used for diagnosing the fault type of the digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, wherein the fault type comprises at least one of meteorological alarm, open circuit fault alarm, short circuit fault alarm and energy efficiency loss.
In one embodiment of the present application, the real-time fault diagnosis module includes:
the data preprocessing module is used for checking meteorological data information according to the fault data information;
the fault data processing module is used for receiving fault data information, judging the fault type of a digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, and generating a corresponding control signal according to the fault type, wherein the control signal comprises at least one of a normal signal, a circuit breaking signal, a short circuit signal and an energy efficiency loss signal;
and the energy efficiency loss evaluation module is used for receiving the energy efficiency loss signal and determining the energy efficiency loss grade of the digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, and the energy efficiency loss grade is divided into three grades from high to low according to the fault data information, wherein the three grades comprise primary energy efficiency loss, secondary energy efficiency loss and tertiary energy efficiency loss.
In a specific embodiment of the application, the diagnostic operation and maintenance module is further configured to adjust and control the energy efficiency evaluation module and the power prediction module in real time according to the prediction result data and the evaluation result data, so that an error value between the prediction result data and the evaluation result data does not exceed a preset value.
According to the first concept of the invention, an intelligent photovoltaic energy efficiency management platform is constructed, a distributed photovoltaic information island is opened, a standardized operation and maintenance management system is established, and the condition of the information island is eliminated through a three-dimensional integrated integral technical scheme of real-time data acquisition, field configuration monitoring and cloud platform data analysis.
According to the second concept of the invention, the real-time monitoring and the early warning of the faults are carried out on scattered power stations, and the timely response to the faults and the early elimination of the faults are realized in a mode of indicating the operation and maintenance of the line by the online data.
In summary, the digital integrated operation and maintenance management system of the distributed photovoltaic power station provided by the invention has extremely high efficiency and economy, provides necessary power generation related data information and meteorological information for users to look up through automatic acquisition and storage, avoids manual monitoring, saves manpower and material resources, has very high economy, breaks through a distributed photovoltaic information island by constructing an intelligent photovoltaic energy efficiency management platform, establishes a standardized operation and maintenance management system, eliminates the condition of information island by a three-dimensional integrated technical scheme of real-time data acquisition, field configuration monitoring and cloud platform data analysis, improves the interactivity among data, and has extremely high efficiency.
The above description is only an embodiment of the present invention, but not intended to limit the scope of the present invention, and any structural changes made according to the present invention should be considered as being limited within the scope of the present invention without departing from the spirit of the present invention.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and related description of the system described above may refer to the corresponding process in the foregoing method embodiments, and will not be described herein again.
It should be noted that, the system provided in the foregoing embodiment is only illustrated by dividing the functional modules, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the modules or steps in the embodiments of the present invention are further decomposed or combined, for example, the modules in the foregoing embodiment may be combined into one module, or may be further split into multiple sub-modules, so as to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not to be construed as unduly limiting the present invention.
Those of skill in the art would appreciate that the various illustrative modules, method steps, and modules described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that programs corresponding to the software modules, method steps may be located in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. To clearly illustrate this interchangeability of electronic hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as electronic hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. The utility model provides a distributed photovoltaic power plant's digital integration operation and maintenance management system which characterized in that includes: an intelligent monitoring module, an energy efficiency evaluation module, a power prediction module and a diagnosis operation and maintenance module,
the intelligent monitoring module is used for providing monitoring data;
the energy efficiency evaluation module is used for receiving the monitoring data and uploading prediction result data to the intelligent monitoring module based on the monitoring data;
the power prediction module is used for receiving the monitoring data and uploading evaluation result data to the intelligent monitoring module based on the monitoring data;
the diagnosis operation and maintenance module is used for receiving the monitoring data and uploading diagnosis result data to the intelligent monitoring module based on the monitoring data;
the intelligent monitoring module is also used for establishing a photovoltaic online interval prediction model based on the prediction result data, the evaluation result data and the diagnosis result data, and dynamically predicting the distributed photovoltaic output power according to the prediction model.
2. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 1, wherein the intelligent monitoring module comprises: the system comprises a data acquisition module, a data processing module and a monitoring software module;
the data acquisition module is used for acquiring the environmental meteorological parameters of the digital integrated operation and maintenance management system of the distributed photovoltaic power station in real time during working, wherein the environmental meteorological parameters comprise: the solar energy collecting system comprises a temperature data, solar radiation intensity data and wind speed data, wherein the temperature data, the solar radiation intensity data and the wind speed data are converted into standard 4-20mA or 1-5V electric signals based on a sensor, and a data collecting module is also used for collecting the working voltage and the working current of a solar cell panel in real time;
the data processing module is used for controlling the digital integrated operation and maintenance management system of the distributed photovoltaic power station based on the working voltage and the working current and enabling the digital integrated operation and maintenance management system of the distributed photovoltaic power station to keep the maximum output power;
the monitoring software module comprises a cloud monitoring module and a local monitoring module, the cloud monitoring module is used for carrying out remote data monitoring and intelligent control on the digital integrated operation and maintenance management system of the distributed photovoltaic power station, the digital integrated operation and maintenance management system of the distributed photovoltaic power station stores the power generation state data of the digital integrated operation and maintenance management system of the distributed photovoltaic power station through a cloud database, the local monitoring module is used for carrying out local data monitoring and intelligent control on the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and the local monitoring module is further used for providing a human-computer interaction interface so as to monitor the digital integrated operation and maintenance management system of the distributed photovoltaic power station.
3. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 2,
the monitoring software module is also used for monitoring a circuit breaker, an isolating switch, a grounding switch, a transformer, a capacitor, power consumption of an alternating current and direct current station and auxiliary equipment thereof, a protection signal and state signals of various devices of the digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the cloud monitoring module is further used for remotely controlling all the circuit breakers, the electric isolating switches, the electric grounding disconnecting links and the main transformer on-load tap changers.
4. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 1, wherein the energy efficiency evaluation module comprises: the device layer module, the display layer module and the platform layer module;
the equipment layer module is used for providing evaluation data for energy efficiency evaluation for a digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the platform layer module is used for calculating and managing the evaluation data;
the display layer module is used for visually displaying the energy efficiency evaluation result of the digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the device layer module, the platform layer module and the display layer module are connected through the Ethernet, the device layer module transmits data for energy efficiency assessment to a server of the platform layer module through the Ethernet, and the platform layer module transmits an analysis result of the data to the server of the display layer module through the Ethernet.
5. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 4,
the equipment layer module comprises distributed power supply equipment, an energy metering terminal, environment monitoring equipment and a data acquisition unit;
the system comprises a distributed power supply device, an energy metering terminal, an environment monitoring device, a platform layer module, a power grid, an energy grid point, an energy storage inverter, an environment monitoring device and a data collector, wherein the distributed power supply device is used for providing running states of the photovoltaic inverter and the energy storage inverter for a digital integrated operation and maintenance management system of a distributed photovoltaic power station, the energy metering terminal is used for providing electric quantity transmitted to the power grid by the grid point for the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and electric quantity and load power consumption obtained from the power grid by the grid point, the environment monitoring device is used for providing environment temperature and irradiation intensity for the digital integrated operation and maintenance management system of the distributed photovoltaic power station, and the data collector is used for analyzing data of the distributed power supply device, the energy metering terminal and the environment monitoring device and sending the data to the platform layer module;
the platform layer module comprises a cloud platform device;
the platform layer module is used for providing data analysis and data management functions for a digital integrated operation and maintenance management system of the distributed photovoltaic power station and sending a data analysis result to the display layer module.
6. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 1, wherein the power prediction module comprises a station system, a security access area and a power grid dispatching center,
the field station system comprises a real-time power acquisition system and a real-time weather acquisition system, wherein the real-time power acquisition system and the real-time weather acquisition system are used for acquiring power and weather data in real time and transmitting the power and weather data to a front-end server in a security access area through a communication network for primary data processing, the front-end server is used for transmitting the primarily processed real-time power and weather data to a power grid dispatching center, the power grid dispatching center comprises a data application server and a management workstation, the data application server comprises an Adaboost algorithm module and a future weather forecast module, the Adaboost algorithm module is used for receiving the primarily processed real-time power and weather data transmitted by the front-end server, the future weather forecast module is used for transmitting the future weather forecast data to the Adaboost algorithm module, and the Adaboost algorithm module is further used for carrying out combined analysis and prediction on the future weather forecast data, the real-time power and the weather data to obtain a prediction result, and transmitting the prediction result to the management workstation.
7. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 6,
the front-end server transmits real-time power and meteorological data to a power grid dispatching center through a reverse physical isolation device;
the prediction result is a photovoltaic power prediction result of 0-6 hours in the future.
8. The digital integrated operation and maintenance management system for the distributed photovoltaic power station as recited in claim 1, wherein the diagnosis operation and maintenance module comprises: the system comprises a fault data processing module and a fault data diagnosis module;
the fault data processing module is used for acquiring and transmitting fault data information of a digital integrated operation and maintenance management system of the distributed photovoltaic power station;
the fault data diagnosis module is used for diagnosing the fault type of a digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, wherein the fault type comprises at least one of meteorological alarm, open circuit fault alarm, short circuit fault alarm and energy efficiency loss.
9. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 8, wherein the fault data diagnosis module comprises:
the data preprocessing module is used for checking meteorological data information according to the fault data information;
the fault data processing module is used for receiving the fault data information, judging the fault type of the digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, and generating a corresponding control signal according to the fault type, wherein the control signal comprises at least one of a normal signal, an open circuit signal, a short circuit signal and an energy efficiency loss signal;
the energy efficiency loss evaluation module is used for receiving the energy efficiency loss signal and determining the energy efficiency loss grade of the digital integrated operation and maintenance management system of the distributed photovoltaic power station according to the fault data information, and the energy efficiency loss grade is divided into three grades from high to low according to the fault data information, wherein the three grades comprise primary energy efficiency loss, secondary energy efficiency loss and tertiary energy efficiency loss.
10. The digital integrated operation and maintenance management system of the distributed photovoltaic power station as claimed in claim 1,
the diagnosis operation and maintenance module is also used for adjusting and controlling the energy efficiency estimation module and the power estimation module in real time according to the estimation result data and the estimation result data, so that the error value of the estimation result data and the estimation result data does not exceed a preset value.
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