Differential configuration technology of large distance difference DC bus cable

The photovoltaic modules in the distributed generation system or photovoltaic power station are connected in series and parallel to the combiner box, and then connected to the DC power distribution cabinet through the combiner box. The photovoltaic array with a capacity of 1MWp in the photovoltaic power station covers an area of ‚Äč‚Äčabout 25 acres. […]

The specific connection method of photovoltaic modules

Photovoltaic power stations cover a large area, use a large amount of DC bus cables, and have a lot of line power loss, and the line voltage drop is seriously inconsistent. In a photovoltaic power generation system, multiple photovoltaic modules are connected in series to form the smallest unit with the required DC output voltage. […]

Photovoltaic power generation – an overview of generator capacity maximization design

General Photovoltaic power generation unit is a basic organization in photovoltaic power station. Usually, each photovoltaic power generation unit is equipped with one transformer and several inverters. In the actual project, the installed capacity of a photovoltaic power generation unit is more flexible, and a photovoltaic power generation unit can be designed according to the […]

Component inclination and array spacing design – knowledge points you must learn

The multi factor comprehensive calculation technology of component inclination and array spacing alternating feedback has been applied in a 10MW photovoltaic power station in Golmud, Qinghai Province. The component inclination and array spacing designed by this method can effectively improve the power generation efficiency and increase the income of the power station. The component inclination […]

What aspects need to be considered in the selection of the array form of photovoltaic power plants?

The selection of the array form of photovoltaic power stations needs to be comprehensively considered from several aspects such as initial investment, power generation, and operation and maintenance costs. Combined with the actual data of a photovoltaic power station in northwest China designed by a design institute, the power generation characteristics of the four forms […]

What is a concentrating photovoltaic system composed of?

Concentrated solar energy systems are mainly composed of concentrator components, high-efficiency solar cells, active or passive cooling devices, and single-axis or dual-axis tracking devices. The functions of each component are described as follows: The function of the concentrator assembly is to increase the radiation intensity of the incident light on the solar surface, thereby increasing […]

What is the research status of photovoltaic concentrating operation mode?

Photovoltaic concentrating structure is the use of concentrating optical elements and solar cells together to form concentrating solar cells, which can greatly improve the photoelectric conversion efficiency and use small-area solar cells. A “focal spot” or “focal zone” is formed within the range, and the solar cell is placed on the “focal spot” or “focal […]

What is the dual-axis tracking operation mode of the photovoltaic array?

The dual-axis tracking system not only tracks the azimuth angle of the sun, but also tracks the altitude angle of the sun’s rays at the same time. Generally, the daily track tracking algorithm is used, and electric devices and gear meshing are used to adjust the angle and position of the photovoltaic modules completely according […]

What is the single-axis tracking operation mode of photovoltaic array?

For photovoltaic power generation, the use of tracking devices can significantly improve the utilization rate of solar energy, while the single-axis tracking method can use relatively simple equipment to achieve an ideal tracking effect. Compared with the fixed operation type, the single-axis tracking method improves the utilization efficiency of solar energy; compared with the dual-axis […]