summary
Ground string photovoltaic power stations convert solar radiation energy into electrical energy through photovoltaic arrays, connect to the public power grid, and jointly undertake power supply tasks. The scale of large and medium-sized photovoltaic power generation systems is generally above the megawatt level, which is an important development direction for solar photovoltaic power generation to enter the stage of large-scale commercial power generation and become a component of the power industry. Large and medium-sized grid connected photovoltaic systems are composed of photovoltaic module arrays, string connected inverters, AC combiner boxes, AC cabinets, step-up transformers, switchgear, power station monitoring systems, and other components.
Ground string photovoltaic power station refers to a photovoltaic power station developed using resources such as mountains and hills. The scale of such power plants varies, ranging from a few MW to over a hundred MW; Power generation is mainly integrated into the high-voltage transmission network; Due to the influence of terrain, there are often issues with inconsistent component orientation or occlusion in the morning and evening. This type of power station is mainly used in mountainous areas, mines, and a large amount of barren land that cannot be planted.
Applicable scope
Connect 35kV, 110kV or higher voltage to the high-voltage power grid; Commonly found in complex mountain power plants with multi directional battery panels; The capacity of power stations is generally between 5MW and several hundred MW.
Characteristic advantages
● Easy maintenance, no need for professional engineers to maintain:
Each inverter is equipped with multiple independent MPPTs, which can track each circuit separately. The impact of single circuit faults is small, and the output of each battery board is finely managed, resulting in high system power generation
The inconsistency of photovoltaic modules has a small impact on power generation, and modules of different specifications and manufacturers can be used in the same project;
Convenient installation, inverters and AC combiner boxes can be installed outdoors and on-site, without the need for building inverter rooms, etc.
