Grid-Connected Photovoltaic Generation Plants Components and Operation
Grid-Connected Photovoltaic Generation Plants Components and Operation
复制标题
DOI：
10.1109/mie.2013.2264540
复制
发表时间：
2013-09-01
影响因子：
6.3
通讯作者：
Xiao, Weidong-Michael
中科院分区：
文献类型：
--
作者：
Romero-Cadaval, Enrique;Spagnuolo, Giovanni;Xiao, Weidong-Michael
长期以来，光伏（PV）系统的主要设计目标一直是从PV阵列中提取最大功率并将其注入交流电网。因此，均匀照射光伏阵列的最大功率点跟踪（MPPT）和转换效率的最大化一直是主要的设计问题。然而，当光伏电站接入电网时，必须特别注意系统的可靠性、电能质量以及保护和电网同步功能的实施。现代发电厂需要最大化其能量生产，需要合适的控制策略来解决与部分遮光现象和PV模块朝向太阳的不同取向相关的问题。此外，新的政策，关于注入无功功率到电网中，使开发合适的拓扑结构和控制算法的强制性。提出了光伏能源系统应用的实际解决方案的一般观点。本文涵盖了几个重要的问题，包括最可靠的模型用于仿真，这是有用的控制系统的设计，和MPPT功能，特别是在分布式？应用.在光伏发电处理系统中使用的主要拓扑结构，最后，电网连接方面进行了讨论，重点是同步，保护和集成。
The main design objective of photovoltaic (PV) systems has been, for a long time, to extract the maximum power from the PV array and inject it into the ac grid. Therefore, the maximum power point tracking (MPPT) of a uniformly irradiated PV array and the maximization of the conversion efficiency have been the main design issues. However, when the PV plant is connected to the grid, special attention has to be paid to the reliability of the system, the power quality, and the implementation of protection and grid synchronization functions. Modern power plants are required to maximize their energy production, requiring suitable control strategies to solve the problems related to the partial shading phenomena and different orientation of the PV modules toward the sun. Moreover, the new policy concerning the injection of reactive power into the grid makes the development of suitable topologies and control algorithms mandatory. A general view of actual solutions for applications of the PV energy systems is presented. This article covers several important issues, including the most reliable models used for simulation, which are useful in the design of control systems, and the MPPT function, particularly in distributed ?applications. The main topologies used in the PV power processing system and, finally, grid connection aspects are discussed, with emphasis on synchronization, protections, and integration.