REALIZATION OF A THREE-LEVEL NEUTRAL POINT CLAMPED INVERTER USING A NOVEL REGION SELECTION APPROACH OF BUS CLAMPING PWM FOR ELECTRIC VEHICLE APPLICATION
Keywords:Space vector pulse width modulation (SVPWM, Bus clamping pulse width modulation (BCPWM), Three-level (3L) neutral point clamped (NPC) inverter, Fixed v/f control, Electric vehicle (EV)
This article examines a space vector-based bus clamping control approach for an induction motor driven by a three-level inverter for use in electric vehicles. The suggested controller incorporates a new region identification methodology by combining a basic v/f control with a bus clamping mechanism. In terms of power quality, torque ripple, and capacitor voltage balancing, a comparison to the usual SVPWM approach is made. Previously, lesser attention is paid to space vector-based PWM using a region selection methodology. This strategy is centered upon some algebraic equations. The surprising thing about this sector is that it is identical to all the others. As a result, computation complexity is reduced. This technique applies to any number of levels. The suggested controller's effectiveness is evaluated using the MATLAB/Simulink environment. Transient and steady-state analyses are used to evaluate the entire system's performance. Additionally, the neutral point balance of the 3L NPC inverter is achieved using appropriate switching sequences.
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