DESIGN OF PV ARRAY DMPPT SYSTEM BASED ON TIME-DIVISION MULTIPLEXING

Xia Ziyi; Ji Haichen; Kong Jiake; Ge Tian; Wang Shuzheng; Fan Gongming

doi:10.19912/j.0254-0096.tynxb.2024-1341

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (12) : 288-297. DOI: 10.19912/j.0254-0096.tynxb.2024-1341

DESIGN OF PV ARRAY DMPPT SYSTEM BASED ON TIME-DIVISION MULTIPLEXING

Xia Ziyi, Ji Haichen, Kong Jiake, Ge Tian, Wang Shuzheng, Fan Gongming

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Abstract

In addressing the issue of multiple sensor requirements in traditional photovoltaic cell distributed maximum power point tracking （DMPPT）, a design approach for photovoltaic cell time-division multiplexing （TDM） DMPPT is proposed, incorporating a TDM sampling circuit. This involves the analysis of TDM circuit structures and control strategies, the design of DC/DC converter along with their PI control parameters, and the development of MPPT algorithms aimed at improving the performance of the photovoltaic DMPPT system. Grounded in theoretical foundations, a simulation model is established and a physical prototype is constructed to validate theoretical integrity. Experimental findings indicate that the TDM photovoltaic DMPPT system achieves rapid and effective tracking of each photovoltaic cell's maximum power point using only one set of sensors, thereby significantly reducing the overall cost of DMPPT implementations.

Key words

maximum power point tracking / time division multiplexing / PV power generation / control theory / PI control

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Xia Ziyi, Ji Haichen, Kong Jiake, Ge Tian, Wang Shuzheng, Fan Gongming. DESIGN OF PV ARRAY DMPPT SYSTEM BASED ON TIME-DIVISION MULTIPLEXING[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 288-297 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1341

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