基于光伏MPPT算法的自适应三阶滑模控制策略研究

Research of Adaptive Third-Order Sliding Mode Control Strategy Based on Photovoltaic MPPT Algorithm

为提高光伏发电系统的功率转换效率,本文提出一种基于自适应变步长电导增量(AINC)最大功率跟踪(MPPT)控制算法的自适应滑模控制(ASMC)策略。并在Matlab/simulink环境下对本文提出的控制策略进行仿真验证,结论表明此策略相比于常规控制策略的优越性,并且即使在环境条件变化的情况下,该控制策略也能较好地保证光伏发电MPPT系统的鲁棒性和稳定性。

In order to improve the power conversion efficiency of photovoltaic system,this paper proposes an adaptive sliding mode control (ASMC) strategy based on the maximum power point tracking (MPPT) control algorithm with variable step size adaptive incremental conductance (AINC). The proposed control strategy is simulated and verified under the MATLAB-SIMULINK environment. The conclusion shows that this strategy is superior to the conventional control strategy,and this control strategy can better ensure the robustness and stability of the PV MPPT system even under changing environmental conditions.