Abstract
Multilevel inverters became a key piece in most energy conversion, transportation and management systems. The present paper encompasses a wide total harmonic distortion (THD) investigation of the multilevel inverter output voltages. Such investigation is conducted with cascaded topology for some reasonable number of inverter levels L and various modulation index m. A novel and efficient approach is developed to express analytically the voltage THD bounds. Found upper and lower THD limits for arbitrary L and m apply also for neutral point clamped and flying capacitor topologies. They could really serve as reference for quality analysis of multilevel inverters.
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Rehaoulia, A., Rehaoulia, H. & Fnaiech, F. Output voltage quality analysis of three-phase multilevel inverters. Electr Eng 100, 733–739 (2018). https://doi.org/10.1007/s00202-017-0543-1
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DOI: https://doi.org/10.1007/s00202-017-0543-1