The demand for efficient and dependable power conversion methods has increased due to the quick development of sustainable energy systems and power electronics. Interest in multilevel inverters has increased in this area because of their capacity to generate high-quality voltage waveforms with minimal harmonic distortion. A number of power electronic switches are arranged in a staircase arrangement as part of the multilayer inverter architecture that was taken into consideration for this study to produce multilevel voltage output. Pertaining to the basic principle of Neutral Point Clamped (NPC) inverter, this new model with reduced switch topology helps in reducing harmonic distortion and reducing common mode voltage, and these reductions help it to get better efficiency than existing two-level inverters, and that’s where the novelty lies. This work describes in detail the NPC multilevel inverter model design that is chosen to be completed in MATLAB software. All the theoretical aspects of NPC multilevel inverters are covered, which include switching frequency, harmonic distortion, and common mode voltage. The hardware setup for the proposed method is executed, and the results are analyzed in this research.

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Strategies and Techniques for Mitigating Common Mode Voltage in Electric Vehicles Through NPC MLI

  • S. Usha,
  • A. Geetha,
  • Surender Reddy Salkuti

摘要

The demand for efficient and dependable power conversion methods has increased due to the quick development of sustainable energy systems and power electronics. Interest in multilevel inverters has increased in this area because of their capacity to generate high-quality voltage waveforms with minimal harmonic distortion. A number of power electronic switches are arranged in a staircase arrangement as part of the multilayer inverter architecture that was taken into consideration for this study to produce multilevel voltage output. Pertaining to the basic principle of Neutral Point Clamped (NPC) inverter, this new model with reduced switch topology helps in reducing harmonic distortion and reducing common mode voltage, and these reductions help it to get better efficiency than existing two-level inverters, and that’s where the novelty lies. This work describes in detail the NPC multilevel inverter model design that is chosen to be completed in MATLAB software. All the theoretical aspects of NPC multilevel inverters are covered, which include switching frequency, harmonic distortion, and common mode voltage. The hardware setup for the proposed method is executed, and the results are analyzed in this research.