The right-hand man for power station operation - intelligent operation and maintenance system

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The right-hand man for power station operation - intelligent operation and maintenance system

According to the statistics of the power industry released by the National Energy Administration, as of the end of December, the cumulative installed capacity of power generation in the country was about 2.56 billion kilowatts, a year-on-year increase of 7.8%. Among them, the installed capacity of wind power is about 370 million kilowatts, an increase of 11.2% year-on-year; the installed capacity of solar power is about 390 million kilowatts, an increase of 28.1% year-on-year. In 2022, the utilization hours of power generation equipment in power plants of 6,000 kilowatts and above across the country will be 3,687 hours, a decrease of 125 hours from the same period of the previous year. The investment in power engineering construction of major power generation enterprises across the country was 720.8 billion yuan, a year-on-year increase of 22.8%. Among them, nuclear power was 67.7 billion yuan, a year-on-year increase of 25.7%. The investment in power grid engineering construction was 501.2 billion yuan, a year-on-year increase of 2.0%.




At present, my country is in the stage of vigorously developing photovoltaic power plants. Many projects ignore the quality of the projects in order to compete for electricity prices, meet construction deadlines, and occupy resources, resulting in a decline in the quality of photovoltaic power plants. Various quality and safety issues continue to erupt, resulting in many photovoltaic projects. far below expectations. Therefore, there is an urgent need for a smart operation and maintenance system for photovoltaic power plants to grasp the operation of photovoltaic power plants in real time, predict and solve problems in advance, improve power generation efficiency, and increase the profitability of photovoltaic power plants from the perspective of operation and maintenance.

Intelligent operation and maintenance system

The "Green Building Smart Operation and Maintenance" system independently developed by Nanjing Green Construction is equipped with advanced technologies such as artificial intelligence technology, "Industry 4.0", "Internet +", and "Internet of Things", which can monitor 7*24 hours around the clock, combined with data collection Integrate with transmission, analysis and other information technologies to create a new generation of intelligent equipment and systems, starting from the monitoring technology system, monitoring index system, and monitoring management system, to carry out the systematic construction of the monitoring system to ensure the stable operation of the project. It can realize accurate acquisition of photovoltaic field data, and high-speed transmission from photovoltaic field to cloud background and then to workstation, and perform various intelligent detection, analysis, linkage alarm and other functions. Thereby improving the automation level of photovoltaic power plants, developing towards the direction of smart power plants, and reducing manpower for operation and maintenance.




Intelligent Monitoring System

Intelligent operation and maintenance is completed through the cooperation of the background monitoring system, video monitoring system and on-site inspection. The background monitoring host, communication equipment in the photovoltaic area, communication management machine and other equipment constitute the monitoring system of the photovoltaic power station. Communication equipment in the photovoltaic area can provide real-time feedback on the operating status of inverters and other equipment, equipment parameters, power information, environmental conditions, etc., and can also control equipment such as circuit breakers in real time. The photovoltaic area video monitoring system can realize all-weather image monitoring around the factory area and roads, etc., and can realize 360° rotation, motion detection recording, alarm recording and other functions through the pan/tilt. The on-site inspection can see some basic information such as the cleanliness of the surface of the photovoltaic module, the firmness of the wiring, the appearance of the equipment, and other information that has not been uploaded to the background.




Intelligent Inspection UAV System

The intelligent inspection drone system includes a drone charging station, an intelligent inspection drone, and a cloud background. The inspection UAV will automatically inspect the route according to the artificially selected photovoltaic area, and automatically return to the UAV charging station after the inspection. The UAV charging station is equipped with battery replacement and charging functions, and operation and maintenance personnel can remotely operate the UAV to replace the battery. The charging pile is equipped with multiple batteries. After the drone returns, it can take off again after the battery is replaced within 60 seconds without waiting for charging.

The intelligent inspection UAV is equipped with visible light imaging camera, Beidou positioning system, computer intelligent terminal and other equipment to realize the intelligent inspection function. UAVs regularly inspect the photovoltaic area, and provide functions including component temperature detection, component surface dust detection, component crack and damage detection, component occlusion detection, inverter and box variation and noise detection through remote sensing technology. It can also be analyzed in combination with visible light data to determine the damage of cells and junction boxes, and realize the inspection of photovoltaic module hot spot effect, hidden cracks, junction box failures and other problems at high altitude, and combine with Beidou positioning system to accurately locate faulty components position, improving the maintenance efficiency of operation and maintenance personnel. The intelligent inspection drone transmits the collected real-time data and images to the cloud background for operation and maintenance personnel to remotely view the situation of the photovoltaic area.




Intelligent Environmental Monitoring System

Operation and maintenance personnel can obtain real-time, complete and continuous environmental data of photovoltaic power plants through environmental monitoring based on the Internet of Things. Through this data, operation and maintenance personnel can evaluate the overall operating environment of the photovoltaic power station, and take operation and maintenance measures that are conducive to the efficiency of the photovoltaic power station based on the evaluation results.

This technology uses sensors to collect data such as temperature, humidity, and light intensity of the photovoltaic power station environment at multiple points, transmits the data to the nearest routing gateway node through the Internet of Things technology, and forwards the data to the cloud platform through the routing gateway node, thereby realizing remote monitoring .

Intelligent security and fire protection integrated monitoring system

Due to the large area of the photovoltaic power station and the dense arrangement of components, there are many uncontrollable problems in the power station. For example, the periphery of the power station may catch fire due to man-made reasons. If the weeds grow wildly and the wind blows, it is very easy to cause the fire to spread to the power plant area, resulting in damage to the power plant. At this time, the integrated monitoring system for security and fire protection is particularly important.

The security and fire protection integrated monitoring system is a comprehensive system integrating video monitoring technology, image intelligent recognition technology, and network transmission technology. The system has fire monitoring function and video monitoring function at the same time.

The system is equipped with intelligent network cameras and thermal imaging dual-spectrum equipment, including cross-border monitoring, face capture, sound and light reminders, and two-way intercom functions to achieve intelligent security. The thermal imaging dual-spectrum equipment has a built-in pyrotechnic recognition algorithm, which can identify smoke and fire points, quickly discover fires, accurately report fires, and realize three-dimensional and all-round monitoring of fires. Based on AI and big data technology, the system deeply learns the characteristics of smoke and fire through a large number of simulation experiments and a large number of actual smoke and fire data samples, so that the recognition of smoke and fire is more accurate and the false alarm rate is lower. The security and fire protection integrated monitoring system can monitor uninterrupted throughout the day, 360° without dead angle, and realize video monitoring and fire detection functions at the same time during the cruise rotation process, so that hidden dangers and dangers can be discovered more accurately and in a timely manner.

The intelligent operation and maintenance system of Nanjing Lvjian Optoelectronics uses various high-tech technologies, aiming to reduce the input of photovoltaic power plant operation and maintenance personnel, reduce economic expenses, and improve operation and maintenance efficiency. It can also realize remote one-stop management of multiple photovoltaic power plants, provide more scientific operation and maintenance methods, ensure the value preservation of photovoltaic power plant assets, and increase the value-added of projects.

In the future, Nanjing Lvjian Optoelectronics will continue to forge ahead, participate in the formulation of relevant industry standards, help build a green energy world, grow from a cultivator in the BIPV industry to a leader in the BIPV industry, and make due contributions to the realization of the double carbon goal contribute.

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