CAJ | 학술논문

在分析光伏电池的数学模型和输出特性基础上，给出基于改进的Zeta电路的滑模变结构控制策略。为实现光伏系统最大功率点跟踪(MPPT)的优化控制，提出可变阀值切换的滑模变结构+PI复合控制策略，实现了最大功率跟踪的优化控制。通过仿真与实验结果分析，并将给出的控制策略与广泛应用的扰动观测MPPT策略进行比较，验证了本控制策略具有良好的特性。
재분석광복전지적수학모형화수출특성기출상，급출기우개진적Zeta전로적활모변결구공제책략。위실현광복계통최대공솔점근종(MPPT)적우화공제，제출가변벌치절환적활모변결구+PI복합공제책략，실현료최대공솔근종적우화공제。통과방진여실험결과분석，병장급출적공제책략여엄범응용적우동관측MPPT책략진행비교，험증료본공제책략구유량호적특성。
Based on the analysis results of the photovoltaic power generation model and its output character, the proposed control er of sliding mode variable structure based on improved Zeta converter was proposed to realize Maximum Power Point Tracking (MPPT) of photovoltaic system. In order to obtain the optimized maximum power point control, the novel hybrid control of the Sliding Mode Variable Structure with variable switch parameter and PI strategy were presented. By comparing traditional P&O method with the proposed method by simulation and experiment, the good characters of the proposed method were verified.