RESEARCH ON CONTROL STRATEGY OF FLYBACK INVERTER

Wu Dongxu; Xu Shuang; Zhou Jinghua

doi:10.19912/j.0254-0096.tynxb.2023-1070

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (11) : 247-257. DOI: 10.19912/j.0254-0096.tynxb.2023-1070

RESEARCH ON CONTROL STRATEGY OF FLYBACK INVERTER

Wu Dongxu, Xu Shuang, Zhou Jinghua

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Abstract

Aiming at the problems of lack of precise mathematical model of system, high harmonic content and low power transmission in previous literature, this paper deduces the third-order and fourth-order mathematical model of Flyback inverter in detail by using two different methods, and proposes a pole assignment control method applied to Flyback inverter. By changing the pole position, the performance of inverter is optimized. The main purpose of optimization design is to provide better power quality to the power grid, so that it has stronger robustness. The critical duty cycle is derived, the working principle of the inverter is analyzed in detail, and the correctness of the proposed method is verified in the simulation.

Key words

Photovoltaics / electric current control / inverter / high frequency transformers / pole assignment / renewable energy / distributed power generation

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Wu Dongxu, Xu Shuang, Zhou Jinghua. RESEARCH ON CONTROL STRATEGY OF FLYBACK INVERTER[J]. Acta Energiae Solaris Sinica. 2024, 45(11): 247-257 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1070

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