一种基于三相展开器的新型控制方案以降低并网逆变运行中双向三相逆变器的总谐波失真

This study presents a novel control model for bidirectional three-phase inverters that adjusts the DC-Link voltage reference based on AC load feedback, aiming to reduce total harmonic distortion (THD) and enhance power quality, efficiency and equipment lifespan. The proposed model incorporates error dynamics management, averaging mechanisms and PI control, achieving superior performance compared to existing methods, particularly for induction machine loads. Its practicality is validated through simulation and experimental results, demonstrating its effectiveness and adaptability in scenarios where traditional controllers fall short.