Hybrid Modulation Method for Single Phase Full Bridge CRM Inverter to Improve Reactive Power Capability

Chen, Xingyu; Li, Qiang

doi:10.1109/apec48139.2024.10509434

2024 IEEE Applied Power Electronics Conference and Exposition (APEC) 2024

DOI: 10.1109/apec48139.2024.10509434

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Hybrid Modulation Method for Single Phase Full Bridge CRM Inverter to Improve Reactive Power Capability

Xingyu Chen,

Qiang Li

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2024

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A Hybrid Commutation Technique for Reducing Zero-Crossing Distortion in a Sliding Mode Controller for Single-Phase Grid-Tied Full-Bridge Inverters

Bolaños-Navarrete,

Bastidas-Rodríguez,

Osorio

2024

Energies

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This paper presents a single-phase Full-Bridge (FB) inverter with a hybrid commutation technique designed to reduce the harmonic distortion caused by the loss of the controller capability around the zero-crossing point in the unipolar commutation region. The hybrid modulation changes from unipolar to bipolar commutation under the loss of the reference control, improving the robustness and efficiency of the method. The commutation technique improves the switching performance and reduces the switching losses. Simulation models are developed in MATLAB/Simulink R2023b to evaluate their performance under different operating conditions. The results show that the proposed commutation technique can achieve high efficiency, low total harmonic distortion (THD), and fast dynamic response. The experimental implementation of sliding mode control (SMC) implemented in an STM32 microcontroller confirms that the hybrid commutation technique can reduce the THD by 0.96 percentage points for local (off-grid) loads and up to 2.45 in an industrial grid-tie network, compared with unipolar commutation. These findings highlight the potential of the proposed modulation technique for applications like solar panels and offer crucial insights for ongoing research and development in this field.

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A Hybrid Commutation Technique for Reducing Zero-Crossing Distortion in a Sliding Mode Controller for Single-Phase Grid-Tied Full-Bridge Inverters

Bolaños-Navarrete,

Bastidas-Rodríguez,

Osorio

2024

Energies

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show abstract

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Hybrid Modulation Method for Single Phase Full Bridge CRM Inverter to Improve Reactive Power Capability

Cited by 1 publication

References 14 publications

A Hybrid Commutation Technique for Reducing Zero-Crossing Distortion in a Sliding Mode Controller for Single-Phase Grid-Tied Full-Bridge Inverters

A Hybrid Commutation Technique for Reducing Zero-Crossing Distortion in a Sliding Mode Controller for Single-Phase Grid-Tied Full-Bridge Inverters

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