MPPT CONTROL OF PHOTOVOLTAIC SYSTEM BASED ON FITTING BACKSTEPPING SLIDING MODE METHOD

被引：0
|
作者：
Wang R. [1 ]
Zhang M. [1 ]
Bao G. [1 ]
Liu W. [1 ]
Yang J. [1 ]
机构：
[1] College of Electrical and New Energy, China Three Gorges University, Yichang
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 08期
关键词：
backstepping sliding mode control; maximum power point tracking（MPPT）; photovoltaic arrays; photovoltaic power generation; surface fitting;
D O I：
10.19912/j.0254-0096.tynxb.2022-0487
中图分类号：
学科分类号：
摘要：
A hybrid MPPT scheme based on fitting optimization backstepping sliding mode control is proposed in this paper. Firstly，the scheme is based on the P-V characteristic curve of photovoltaic power generation system. The cubic interpolation function is used to fit the reference voltage at the maximum power point Vref. Then，based on the Vref and backstepping sliding mode control principle，a controller is designed and the duty cycle is controlled by PWM modulation，so that the controller can track the maximum power point quickly and effectively under different environmental conditions. Finally，the effectiveness of the proposed scheme is verified by Matlab/ Simulink simulation，and compared with other classical methods. The results show that the method has high tracking speed，low steady-state power fluctuation and better tracking performance. © 2023 Science Press. All rights reserved.
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页码：224 / 231
页数：7
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