CAJ | 학술논문

光伏电池的输出功率与太阳辐射和环境温度变化，若不加以控制，将不会以最大功率输出。本文提出了一种变步长电导增量法，在光伏发电系统实现最大功率点跟踪。应用MATLAB建立光伏电池板的最大功率点跟踪变步长电导增量法的仿真模型并仿真。仿真结果表明，变步长电导增量法跟踪最大功率点效果良好，相比传统电导增量法，减弱了最大功率点附近振荡的情况，适合于快速变化的环境条件，具有良好的动态和稳态特性。
광복전지적수출공솔여태양복사화배경온도변화，약불가이공제，장불회이최대공솔수출。본문제출료일충변보장전도증량법，재광복발전계통실현최대공솔점근종。응용MATLAB건립광복전지판적최대공솔점근종변보장전도증량법적방진모형병방진。방진결과표명，변보장전도증량법근종최대공솔점효과량호，상비전통전도증량법，감약료최대공솔점부근진탕적정황，괄합우쾌속변화적배경조건，구유량호적동태화은태특성。
The power available at the output of photovoltaic cells keeps changing with solar insolation and ambient temperature.If the power output of photovoltaic cells is not wel control ed,it wil not work at the maximum point.This paper presents a variable step size incremental conductance method for tracking maximum power point in photovoltaic power systems.In this paper,simulation model of photovoltaic system’s maximum power point tracking(MPPT)is developed in the MATLAB software.The results of simulation show this control algorithm signiifcantly improves the efifciency during the tracking phase.As compared to the tradition algorithm about MPPT in photovoltaic power systems.It is especial y suitable for fast changing environmental conditions.It reduces the oscil ation around the maximum power point with good dynamic and steady-state characteristics.