Abstract
We review the most common topology of multi-level inverters. As is known, the conventional inverters are utilized to create an alternating current (AC) source from a direct current (DC) source. The two-level inverter provides various output voltages [(Vdc/2) and (−Vdc/2)] of the load. It is a successive method, but it makes the harmonic distortion of the output side, Electromagnetic interference (EMI), and high dv/dt. We solve this problem by constructing the sinusoidal voltage waveform. This is achieved by a “multilevel inverter” (MLI). The multilevel inverter creates the output voltage with multiple DC voltages as inputs. Many voltage levels are combined to produce a smoother waveform. During the last decade, the multilevel inverter has become very popular in medium and high-power applications with some advantages, such as the reduced power dissipation of switching elements, low harmonics, and low EMIs. We introduce the information about several multilevel inverters such as the diode-clamped multilevel inverter (DC-MLI), cascaded H-bridge multilevel inverter (CHB-MLI), and flying-capacitor multilevel inverter (FC-MLI) with Power systems CAD (PSCAD) simulation. It is shown that THD is 28.88% in three level FC-MLI while THD is 18.56% in five level topology. Therefore, we can decrease the total harmonic distortion adopting the higher-level topology.
Subject
Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering
Reference97 articles.
1. Power Electronics Circuits, Devices and Application Handbook;Rashid,2003
2. Multilevel inverters: a survey of topologies, controls, and applications
3. A three-phase hybrid cascaded modular multilevel inverter for renewable energy environment;Raghavendra;IEEE Trans. Power Electron.,2016
4. Packed u cells multilevel converter topology: Theoretical study and experimental validation;Youssef;IEEE Trans. Ind. Electron.,2011
5. A new asymmetric multilevel inverter topology suitable for solar PV applications with varying irradiance;Sumit;IEEE Trans. Sustain. Energy,2017
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