In photovoltaic systems, in addition to key components such as components and inverters 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 communication in different scenarios. Technical and economic analysis of cable selection.
The photovoltaic capacity is 1.0368MW, using 450W modules, 18 modules/strings, a total of 128 strings, using 8 100K inverters, the module inverter capacity ratio is 1.3, the average distance between the photovoltaic string and the grid connection point is 250M, assuming the factory is integrated The electricity price is 0.8 yuan.
Four conditions must be considered at the same time 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) combined with the influence of different distances from the inverter when the string is at a fixed distance from the grid connection point.
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