光伏并网电站光伏组件安装倾角的选择设计

Design of component inclining angles for photovoltaic grid-connected plants

在太阳能光伏发电系统的设计工作中,光伏组件的安装倾角设计对光伏并网工程的实际发电量和占地面积都有较大影响,目前的一些工程设计往往按照能够提供最大发电量的原则来选择光伏组件的安装倾角。经过对阿拉善左旗5 MW光伏并网电站工程计算分析认为,若适当地减小安装倾角,虽然降低了发电量,但使得占地面积有效减少,从总体上获得了工程经济效益的最大化。为便于工程的实际应用,同时对上网电价变化进行敏感性分析,提出安装倾角减少量与电价变化的关系。

In the design of a solar photovohaic system, inclining angles of PV components during installation have a great impact on power generation and the actual occupied area. Current designs often use the inclining angle which can provide maximum power output. The analysis of the 5 MW photovohaic grid-connected plant at Alashanzuoqi indicates that by reducing inclining angles properly, although the power generation will be lowered, the occupied area will be reduced too. This will lead to an optimal economic benefit for the entire engineering project. In order to facilitate the practical engineering applications, a sensitivity analysis with respect to the sale prices was performed, and the relationship between the installation angle and sale price changes was proposed.