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Design of E-Type Asymmetric Multilevel Inverter

Gayatri Mohanta

Abstract


Traditional multilevel inverters have drawbacks such as the high number of power semiconductor switches required, huge capacitor banks, high switching losses, and so on. An updated envelope-type (E-type) MLI architecture is employed to work around these restrictions. Fewer components and a slower switching frequency are two advantages of this E-type Module. The 13-level output voltage is produced by the E-type asymmetric converter's usage of four differential DC sources and 10 switches. To get a clean, low-harmonic output voltage, the SHE modulation method is applied. In transformer-less traction drives, this E-type converter design will be implemented. Most modern electric railways employ induction motors for their electric propulsion. Induction motors are fed power through a connection that doesn't require a transformer. This converter-inverter setup takes in a single-phase AC power and converts it to DC, which is then inverted back into three-phase AC. The Induction motors will be powered by the output of an E-type multilevel inverter.


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References


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Nayak, S. R., Aman, S., Mohanta, H. C., & Miishra, D. S. (2016). Design and implementation of real time video image edge detection system using MyRIO. International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, 5(3).


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