Operation and maintenance of photovoltaic new energy you dont know

      In recent years, new energy photovoltaic power plants have gradually moved into various fields such as industry and commerce, households, photovoltaic buildings, agricultural photovoltaics, and fishing photovoltaics. At the same time, photovoltaic power plants in different forms, regions, and stages have different requirements for photovoltaic operation and maintenance, and the difficulty of photovoltaic operation and maintenance has further increased.

      Some operation and maintenance workers complained: "Speaking of the operation and maintenance of photovoltaic new energy photovoltaic power plants, many people think that it is simple, as long as the site is safe, the power generation efficiency of the power station is good, and the dust of the components is occasionally cleaned. In summary, it is Simple and rude."

This is not the case. Photovoltaic new energy operation and maintenance is short for operation and maintenance. Based on the safety of photovoltaic power station system, the power station is reasonably managed through regular and irregular equipment testing and maintenance to ensure the safe and stable operation of the power station and the rate of return on investment. The operation and maintenance of photovoltaic power plants requires 24-hour real-time monitoring. A photovoltaic operation and maintenance team is not only monitoring prevention, but more importantly subsequent maintenance. With the development of the entire industry, a deeper meaning has emerged, extending from operation and maintenance to operations, and from post-evaluation to post-service.

       Some people describe photovoltaic operation and maintenance personnel as the "most tolerable" group of people: unreasonable design, product problems, engineering problems, weather and air problems, all require operation and maintenance personnel to coordinate power grid companies, owners, local residents and other parties The staff handles. "You need to understand electricity, components, and engineering, and now you need to understand planting and breeding." The above-mentioned operation and maintenance staff jokingly called the "decathlon" required for operation and maintenance.

        It is the last two or three years that photovoltaic operation and maintenance has entered the public's attention. The rapid development of the photovoltaic industry, coupled with the important tasks undertaken in the energy transition, to achieve the healthy and orderly development of photovoltaic operation and maintenance has become a common problem faced by the entire industry. The operation and maintenance management of photovoltaic power plants is a task with a high degree of difficulty and high risk. Therefore, in order to ensure the safety of the staff and the normal operation of the equipment, the relevant staff must be familiar with the safety rules and regulations and strictly abide by them, and then formulate strict maintenance plans and use professional technical means to carry out their work. In the actual maintenance work, the maintenance plan should be formulated according to the scale and size of the photovoltaic power station.

        Under the impact of the Internet, photovoltaic operation and maintenance has produced new business formats, and high-tech means have promoted continuous optimization and advancement of operation and maintenance work. The standardization system is gradually established, the centralized control center is continuously built, and the inspection method is updated.

       SPIC’s installed photovoltaic power generation capacity has exceeded 10 million kilowatts, ranking first in the world, and has accumulated rich experience in the operation and maintenance of ultra-large-scale power plants. In a 2016 inspection and investigation, it was found that about 5% of the 1 million kilowatt photovoltaic power station did not generate power normally, which is equivalent to the loss of the power generation of a 50,000 kilowatt photovoltaic power station. This shows that when the power station volume reaches a certain scale, overhaul or technical renovation can significantly increase the power generation.

       Photovoltaic operation and maintenance places great emphasis on "yield", which is not easy. The State Power Investment Corporation has issued 43 technical standards in recent years. From quality control to project development, each link has set income requirements.

      “The development history of photovoltaics is relatively short. Compared with thermal power plants and wind farms, the system is simpler, resulting in insufficient understanding of photovoltaic operation and maintenance. In fact, there are many forms of construction of photovoltaic power plants, which makes the operation and maintenance more complicated than imagined.”

      Intelligent operation and maintenance methods such as drone inspections have also been introduced into the photovoltaic industry. According to the public data of Jinko Power, its intelligent drone inspection can reduce the loss rate of internal failures from 1.5% in 2013 to 0.3% in 2016, and increase power generation by 24-60 million kWh per year. Taking a 50MW photovoltaic power station as an example, the number of operation and maintenance personnel can also be reduced from 12 to 6.

      The mobile operation and maintenance of the power station has also achieved a breakthrough. The relevant person in charge of Huawei gave a vivid explanation, just like using Didi Taxi to see the distance between the driver and the passenger, whether it is a ground power station or a distributed power station, the company’s existing operation and maintenance system can be positioned to the nearest operation and maintenance. Personnel, quickly pop up a warning message, and automatically turn it into a work order to quickly solve the problem.

      "It's difficult to do operation and maintenance." Liu Xin, the chief engineer of Guogao's technical service, smiled bitterly. "Do you care about what the operation and maintenance personnel do in the front line? What happened to the power station? Is the operation and maintenance done well?" How to consider the operation and maintenance Is the work up to standard, whether it is power generation, PR value or guarantee rate? There is no evaluation index system at present.

       Many photovoltaic power plants still can only use manual operation and maintenance due to the complex terrain. A photovoltaic power station is about 3,800 meters above sea level. There is no water source, so you can only eat instant noodles and dry food every day. The weather on the plateau changes frequently and it is extremely difficult to go up the mountain. "The safety of equipment is safety, and the safety of personnel is also safety." The construction of the photovoltaic operation and maintenance system should increase some human factors. For example, the post-90s operation and maintenance personnel, due to the remote work area and monotonous work content, insist on resigning at most three to five years. This is a loss for individuals, enterprises, and operations and maintenance.