Five-Cell Multi-Level Converter
2016-08-23
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This demonstration illustrates a five-cell multi-level converter driving a static load.
Circuit Description: The system consists of a three-phase five-cell multi-level converter (MLC) constructed from cells containing diode rectifiers and IGBT H-bridge inverters. The MLC is supplied by an ideal 60Hz three-phase source and drives a static resistive/inductive load at 100Hz. The architecture of the converter is taken from [1]. The zig-zag input transformers for each cell are phase-shifted by 15 degrees relative to each other to ameliorate source harmonics below the 23rd harmonic. The H-bridge PWM carrier waves are phase shifted by 45 degrees relative to each other to produce the output voltage 'stacking' effect. The modular nature of a MLC is clearly seen by looking under the component mask.
Circuit Description: The system consists of a three-phase five-cell multi-level converter (MLC) constructed from cells containing diode rectifiers and IGBT H-bridge inverters. The MLC is supplied by an ideal 60Hz three-phase source and drives a static resistive/inductive load at 100Hz. The architecture of the converter is taken from [1]. The zig-zag input transformers for each cell are phase-shifted by 15 degrees relative to each other to ameliorate source harmonics below the 23rd harmonic. The H-bridge PWM carrier waves are phase shifted by 45 degrees relative to each other to produce the output voltage 'stacking' effect. The modular nature of a MLC is clearly seen by looking under the component mask.
matlab
高压
单元
变频器
电平
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