JDSOLAR provides photovoltaic power generation system technical solutions for the 711 Research Institute of China Shipbuilding Heavy Industry.

The 711 Research Institute of China Shipbuilding Heavy Industry 711 was established in 1963 and is under the jurisdiction of China Shipbuilding Corporation Limited. 711 Institute is a ship power research and development institution with a history of 55 years and a modern high-tech enterprise group. 711 Institute has strong research and development capabilities and complete professional configurations. It has seven strategic businesses, including diesel and gas engines, hot gas engines and special power systems, power system solutions and related products, electrical and automation systems, energy equipment and engineering, distributed energy supply and new energy services, and overseas business. Its core technology and products are in a leading position in China and have international influence, and have developed into a research and development center A modern enterprise group that integrates production, service, and engineering contracting, serving more than 20 industries and fields such as machinery, petrochemicals, energy, and transportation, involving more than 30 countries and regions around the world. At present, the total assets are RMB 10.026 billion and the net assets are RMB 3.949 billion.

The technical support party for this project is JDSOLAR, a technology company in China that specializes in developing clean energy such as solar, wind, and air energy. It serves more than 80 countries and regions worldwide and is a leader in smart energy.

The design of this project selects 110 275W polycrystalline photovoltaic modules and a 30kW low-voltage grid connected cabinet.

Q&A on the installation steps of JDSOLAR photovoltaic power generation system

Question 1: How is the installation process of JDSOLAR distributed photovoltaic power station carried out?

Answer: The installation process of a distributed photovoltaic grid connected system involves the installation of foundations, brackets, components, electrical equipment such as combiner boxes, inverters, distribution cabinets, connecting wires, point network access systems, and metering devices. JDSOLAR company can provide professional construction, standardized construction processes, and comprehensive construction assurance measures for owners, providing customers with satisfactory, standard, and professional services.

Question 2: How to file the JDSOLAR distributed photovoltaic power station project and what materials should be prepared?

Answer: The project unit should submit the fixed assets investment filing form and the distributed photovoltaic project filing application form to the municipal or county energy competent department, which should include the following materials: technical data can be downloaded from the JDSOLAR website

1) A project plan that complies with the relevant regulations for the installation of photovoltaic power generation systems in buildings and other facilities;

2) Trial certificate for project land or rooftop sites;

3) Project grid connection opinions issued by municipal or county-level power grid companies;

4) If the project adopts a contract energy management method, materials such as energy service management contracts signed with power users need to be provided;

5) Other materials required by local governments in accordance with relevant regulations.

Question 3: Can the JDSOLAR system achieve online detection of power generation?

Answer: The power grid enterprise cooperates with the energy regulatory department at the same level to carry out measurement, information detection, and statistics of distributed photovoltaic power generation within the coverage range of the power grid at the same level. If the photovoltaic system is equipped with corresponding monitoring systems, it can achieve online detection of power generation. In addition, the monitoring system can also achieve online detection of key equipment parameters, power quality, environmental parameters, etc.

Question 4: How to judge the quality of the JDSOLAR distributed photovoltaic grid connected power station system?

Answer: The quality of the JDSOLAR distributed photovoltaic grid connected power station system can only be determined through comprehensive testing of components and systems. The inspection content includes the inspection of various components, as well as the inspection of system safety and performance. Question 5: When cleaning JDSOLAR photovoltaic power plant components, is it enough to rinse them with clean water and simply wipe them? Is there a risk of electric shock when wiping with water? Technical materials can be downloaded from the JDSOLAR website

Answer: In order to avoid electric shock injury and possible damage to the photovoltaic power plant components when wiping them under high temperature and strong sunlight, it is recommended to carry out component cleaning work in the morning or late afternoon. It is recommended to use a soft brush and clean mild water when cleaning the glass surface of photovoltaic power plant components. The cleaning force should be small to avoid damaging the glass surface.

Question 6: How to estimate the power generation of the JDSOLAR distributed photovoltaic grid connected power station system?

Answer: To estimate the power generation capacity of a photovoltaic power generation system, it is necessary to know the effective sunshine time, system efficiency, and system installation capacity in the local area where the system is installed. For example, a 1000W photovoltaic grid connected system is installed in Beijing with an effective sunshine time of 4 hours, and the efficiency of the photovoltaic grid connected system is about 80%. Therefore, the formula for calculating the daily power generation of the system is equal to the installed capacity of the components × Effective sunshine hours × System efficiency=1000 * 4 * 0.8=3200Wh, approximately 3.2 kWh. Technical materials can be downloaded from the JDSOLAR website

Question 7: What are the common faults of the JDSOLAR distributed photovoltaic power plant system?

Answer: Due to the voltage not reaching the startup setting value, the inverter is unable to work or start, and the power generation is low due to components or inverters. Typical problems that may occur in system components include burning of junction boxes or partial burning of components.