The conventional approach to optimizing tilt angles for fixed solar panels aims to maximize energy generation over the entire year. However, in the context of a supply controlled electric grid, where solar energy avai...The conventional approach to optimizing tilt angles for fixed solar panels aims to maximize energy generation over the entire year. However, in the context of a supply controlled electric grid, where solar energy availability varies, this criterion may not be optimal. This study explores two alternative optimization criteria focused on maximizing baseload supply potential and minimizing required storage capacity to address seasonality in energy generation. The optimal tilt angles determined for these criteria differed significantly from the standard approach. This research highlights additional factors crucial for designing solar power systems beyond gross energy generation, essential for the global transition towards a fully renewable energy-based electric grid in the future.展开更多
在宁夏的中东部地区,风光资源良好,大量光伏电站以及风电场并入大电网,促进风光资源的有效利用与开发。随着新型光伏材料的出现,成本不断降低,转换效率不断提高,光伏并网得到大量推广。为实现光伏并网逆变器的快速并网,针对单级式光伏...在宁夏的中东部地区,风光资源良好,大量光伏电站以及风电场并入大电网,促进风光资源的有效利用与开发。随着新型光伏材料的出现,成本不断降低,转换效率不断提高,光伏并网得到大量推广。为实现光伏并网逆变器的快速并网,针对单级式光伏并网逆变器锁相环进行研究,分析传统的锁相环因存在1/4周期的延迟,导致跟踪性及动态响应不佳,提出了基于二阶广义积分器(Second Order Generalized Integrator,SOGI)的锁相环并进行对比分析,将SOGI引入后,提高了并网逆变器的并网效率和动态响应,对于光伏并网逆变系统具有一定的研究意义。展开更多
文摘The conventional approach to optimizing tilt angles for fixed solar panels aims to maximize energy generation over the entire year. However, in the context of a supply controlled electric grid, where solar energy availability varies, this criterion may not be optimal. This study explores two alternative optimization criteria focused on maximizing baseload supply potential and minimizing required storage capacity to address seasonality in energy generation. The optimal tilt angles determined for these criteria differed significantly from the standard approach. This research highlights additional factors crucial for designing solar power systems beyond gross energy generation, essential for the global transition towards a fully renewable energy-based electric grid in the future.
文摘在宁夏的中东部地区,风光资源良好,大量光伏电站以及风电场并入大电网,促进风光资源的有效利用与开发。随着新型光伏材料的出现,成本不断降低,转换效率不断提高,光伏并网得到大量推广。为实现光伏并网逆变器的快速并网,针对单级式光伏并网逆变器锁相环进行研究,分析传统的锁相环因存在1/4周期的延迟,导致跟踪性及动态响应不佳,提出了基于二阶广义积分器(Second Order Generalized Integrator,SOGI)的锁相环并进行对比分析,将SOGI引入后,提高了并网逆变器的并网效率和动态响应,对于光伏并网逆变系统具有一定的研究意义。