CAJ | 학술논문

基于光伏电池的物理特性,建立了光伏阵列的PSCAD仿真模型。考虑到太阳能的波动性和随机性,开发了基于Boost电路的最大功率点跟踪( maximum power point tracking,MPPT)控制器模块,保证了光伏阵列始终保持最大功率输出；然后,采用合理的逆变器控制策略,将光伏阵列接入电网,建立完整的并网光伏发电系统。仿真结果表明,搭建的仿真模型能够准确地反映光伏电池和MPPT控制器的物理特性和准确性,以及在不同光照条件下光伏发电系统的运行特性,对于并网光伏发电系统的研究具有重要意义。
기우광복전지적물리특성,건립료광복진렬적PSCAD방진모형。고필도태양능적파동성화수궤성,개발료기우Boost전로적최대공솔점근종( maximum power point tracking,MPPT)공제기모괴,보증료광복진렬시종보지최대공솔수출；연후,채용합리적역변기공제책략,장광복진렬접입전망,건립완정적병망광복발전계통。방진결과표명,탑건적방진모형능구준학지반영광복전지화MPPT공제기적물리특성화준학성,이급재불동광조조건하광복발전계통적운행특성,대우병망광복발전계통적연구구유중요의의。
A simulation model for photovoltaic array is developed based on the physical characteristics of photo-voltaic cells under PSCAD environment. In addition, considering the solar fluctuation and randomness, a simulation model of MPPT controller based on the Boost circuit is also developed to guarantee the maximum power output of pho-tovoltaic array. Then, using reasonable inverter control strategy, photovoltaic array is connected to the grid. A com-plete grid-connected photovoltaic power generation system is established. The simulation results show that the simula-tion models can reflect characteristics and functions of the photovoltaic array and MPPT controller accurately and can reflect the operating characteristics of photovoltaic systems under different light conditions. It is important for the study of grid-connected photovoltaic power generation system.