CAJ | 학술논문

太阳能光伏阵列的输出功率随外界环境因素的变化而变化,为了能高效利用太阳能电池,需要进行光伏阵列的最大功率点跟踪(Maximum Power Point Tracking,简称MPPT).扰动观察法以其简单有效而得到了广泛应用.提出了一种新颖的变步长扰动观察法,对传统方法的动态特性进行优化.在Matlab/Simulink下进行了系统的建模与仿真,并进行了实验研究.结果表明,该方法能快速准确地跟踪外部环境变化,并能保证系统的稳定性.
태양능광복진렬적수출공솔수외계배경인소적변화이변화,위료능고효이용태양능전지,수요진행광복진렬적최대공솔점근종(Maximum Power Point Tracking,간칭MPPT).우동관찰법이기간단유효이득도료엄범응용.제출료일충신영적변보장우동관찰법,대전통방법적동태특성진행우화.재Matlab/Simulink하진행료계통적건모여방진,병진행료실험연구.결과표명,해방법능쾌속준학지근종외부배경변화,병능보증계통적은정성.
The output of photovoltaic (PV) array is affected by the environmental factors such as irradiation and temperature,so an effective maximum power point tracking(MPPT) method of PV array is necessary.A novel variable step size perturbation and observation (P&O) method is proposed to improve the transient characteristics of the traditionary P&O.The simulation model of system is established,and the experiment is implement.The experimental results show that the method can track the maximum power point fast and exactly,and ensure the steady state characteristics of PV systems.