Improved Balancing And Sensing of Sub-module Capacitor Voltages In Modular Multi-level Converters

• Published in: 2018 IEEE Energy Conversion Congress and Exposition (ECCE) pp. 670 - 677
• Main Authors: Joshi, Shamkant D., Chandorkar, Mukul C., Shukla, Anshuman
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.09.2018
• Subjects: Balancing of capacitor voltages in Modular Multilevel Converters; Capacitors; Multilevel converters; Programmable logic arrays; Pulse width modulation; Sensing of capacitor voltages in Modular Multilevel Converters; Sensors; Voltage measurement; Voltage-controlled oscillators

Capacitor voltage balancing is necessary in Modular Multilevel Converters. Voltage controlled oscillator is used for capacitor voltage measurement in reported literature where voltage sensor is required to be calibrated. In the present work, a voltage sensing method that does not need calibration of...