A Novel MPPT Method Based on the Synthesis of Quasi-Sliding Mode Control and Dynamic Equivalent Impedance Matching Method

Abstract:

A systematic procedure to synthesize dynamic equivalent impedance matching method (EIM) based on the quasi-sliding mode control (QSMC) is presented. Aiming at the existing maximum power point tracking (MPPT) methods’ limitation on the dynamic response, control accuracy and robustness, in this paper, with a boost converter used, QSMC is introduced on the basis of EIM and the synthesis (EIM&QSMC) which not only improves the tracking speed and accuracy, but also further enhances the robustness. The simulation results show that compared with EIM, on the condition of load impedance and illumination change, the synthesis improves the MPPT system on the ability to adapt the circuit parameter variation, which has better control effect and practical significance. The design and the models are validated by Matlab / Simulink simulations.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 1340-1343
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.1340
• Online since: December 2012
• Authors: Xiao Jun Zhai, Han Qing Zhang*, Jing Ren Su, Jian Hua Wu
• Keywords: Boost, Dynamic Equivalent Impedance Matching (EIM), Maximum Power Point Tracking (MPPT), PV, Quasi-Sliding Mode Control (QSMC)

References

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