Yaskawa Multi-Pulse Rectifier Harmonic Mitigation White Paper

This white paper discusses harmonic mitigation solutions for adjustable speed AC drives, focusing on Yaskawa's multi-pulse rectifier topologies (12-pulse and 18-pulse) for reducing input current total harmonic distortion (THD) to below 10%. It compares 6-pulse, 12-pulse, and 18-pulse rectifier designs, including their power circuits, transformer configurations (isolation, autotransformer, hybrid), and performance characteristics for drives such as the F7, G7, P7, and E7 series.