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Enhancing power cycling capability of power semiconductor devices is highly demanded in order to increase the long-term reliability of multilevel inverters. Ageing of power switches and their cooling systems leads to their accelerated damage due to excess power losses and junction temperatures. Therefore, thermal stresses relief (TSR) is the most effective solution for lifetime extension of power...
Recently, great attention has been addressed for multilevel inverters, as they exhibit low total harmonic distortion (THD) in the output voltage and low electromagnetic interference (EMI). This paper proposes a single-phase five-level pulse width modulation (PWM) inverter for grid connection. The proposed PWM technique has some switches operated at fundamental line frequency and the others operate...
Recently, great attention has been addressed for multilevel inverters, as they exhibit low total harmonic distortion in the output voltage and low electromagnetic interference. In this paper a new configuration of three-phase multilevel voltage source inverter is presented. This structure consists of series-connected sub-multilevel inverters blocks. The number of utilized switches, insulated gate...
The paper proposes finite state model based current control of a three-level neutral point clamped (NPC) five-phase voltage source inverter. The space vector model of a five-phase voltage source inverter (VSI) yield 243 space vectors, with 240 active and three zero vectors. The presented technique utilizes only 21 space vectors for the current control and hence the name finite state is given. Search...
This paper analyses operation of an indirect rotor field oriented controlled five-phase induction machine with current control in the synchronous reference frame. Artificial Neural network (ANN) based Space vector PWM (SVPWM) technique is utilized to control the five-phase voltage source inverter feeding the five-phase induction machine. Performance, obtainable with ANN based space vector PWM and...
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