In photovoltaic systems, in addition to components, inverters and other key components that are the main factors affecting power generation, AC cables also play an important role in the overall profitability, safety and efficiency of photovoltaic power plants. This article will focus on exchanges in different situations. Technical and economic analysis of cable selection.

      The photovoltaic capacity is 1.0368MW, using 450W modules, each module is 18 modules, a total of 128 modules, using 8 100K inverters, the capacity ratio of the module inverter is 1.3, assuming that the average distance between the photovoltaic module and the grid point is The comprehensive electricity price for a 250 M plant is 0.8 yuan.

      Four conditions must be considered when selecting the wire cross-sectional area: economic current density, safe current carrying capacity, voltage loss and mechanical strength. This article will focus on analyzing the final estimated benefits of different cable types (different materials, different specifications), and combining the impact of different distances from the inverter when the string and the grid connection point are at a fixed distance.