Analysis of Stacked Multicell Converter with Fuzzy Controller
In latest years, commercial companies rely upon using static power converters for developing large voltage and large current applications. For these kind applications preferably we choose multilevel inverters. The multilevel inverters are used to convert
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Faculty of School of Electrical Engineering, VIT University, Vellore, Tamilnadu, India [email protected], [email protected] School of Electrical Engineering, VIT University, Vellore, Tamilnadu, India [email protected], [email protected]
Abstract. In latest years, commercial companies rely upon using static power converters for developing large voltage and large current applications. For these kind applications preferably we choose multilevel inverters. The multilevel inverters are used to convert DC input power to AC output power with more number of voltage levels and with less Total Harmonic Distortion (THD). In this paper, we evolved a new technique, soft switching for unique power converter called stacked multicell converter (SMC). The fuzzy logic controller used to controls the multi levels of operation for Stacked Multicell Converter. As compared to the conventional converter, This SMC topology provides more input voltage levels, reduces the converter energy storage, and also reduces the voltage and current burden on semiconductor switching devices. This paper presents the analysis and simulation results for fuzzy logic controlled multilevel inverter of circuit topologies for open and closed loop operations. Keywords: Stacked Multicell Converter Soft switching controller Phase shifted carrier Pulse Width Modulation (PWM) technique Total Harmonic Distortion (THD)
1 Introduction Recently all the industrial companies and research works be the more attractive towards the multilevel inverters with high power switching devices to produce large voltage and currents [1]. The inverter is one which converts DC input power into AC output of single or three phases. The voltage and current stress on the inverter is increases because the high power switching devices [2]. Now a days we are using high power semiconducting switches are Insulated Gate Bipolar Transistor (IGBT) and Metal Oxide Semi controlled Field Effect Transistor (MOSFET). In this paper we presented a new scheme to improve dynamic performance of the multilevel inverter by using fuzzy controlled Stacked Multicell Converter. By using this scheme the output voltage levels of the converter improves and also energy stored in the flying capacitor reduces. So the switching losses of the devices reduce. A SMC works as inverter and is suits for medium and high voltage level applications. © Springer Nature Singapore Pte Ltd. 2017 K. Deep et al. (eds.), Proceedings of Sixth International Conference on Soft Computing for Problem Solving, Advances in Intelligent Systems and Computing 546, DOI 10.1007/978-981-10-3322-3_30
Analysis of Stacked Multicell Converter with Fuzzy Controller
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The stacked Multicell Converter constructed by p cells and n stacks. In the SMC topology, the voltage and current stress on the semiconductor devices are reduced by distributing stress equally to all the switches. The fuzzy logic controlled SMC topology give less harmonic distortion with increasing output voltage levels [2]. So this topology most popular for the ap
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