Extended State Observer Based Improved Control of Interleaved Boost Converter

Year 2025, Volume: 12 Issue: 4, 1028 - 1043, 31.12.2025

Veli Yenil

https://doi.org/10.54287/gujsa.1779738

Abstract

The interleaved boost converters used in fuel cell (FC) applications are inevitably affected by disturbances, making output voltage regulation challenging. To address this issue, this paper proposes an improved robust voltage control strategy based on an extended state observer (ESO), which is implemented in interleaved DC-DC converters for FC systems. The super-twisting (ST) algorithm is used to track reference current in the inner loop. In the outer loop design, an ESO based controller is used to ensure output voltage regulation while generating the reference current required for the inner loop. Simulation results are used to verify the performance and robustness of the proposed controller, with comparison against the conventional double-loop PI controller.

Keywords

Active Disturbance Rejection Control , Extended State Observer , Fuel Cell , Super-Twisting Algorithm

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