Due to their ability to synthesize waveforms with better harmonic spectrum and attain higher voltages, multi-level inverters are receiving increasing attention in the past few years. The multilevel inverter was introduced as a solution to increase the converter operating voltage above the voltage limits of classical semiconductors. In this paper, a Diode Clamped Multilevel Inverter is controlle...

In this paper a new configuration of the single-phase ninelevel voltage source inverter is described. The proposed inverter is based on modified H-bridge converter. To validate the proposed inverter, a low power prototype inverter has been designed and implemented. Instead of sixteen controlled switches as in conventional method, this topology requires only eight switches to obtain nine level o...

This paper presents analysis, simulation and implementation of Space vector pulse width modulation (SVPWM) inverter. Principles of the SVPWM is introduced and analyzed. Modeling of the switching intervals and control signal generators are introduced. Implementation and Experimental results of SVPWM inverter are presented to realize the validity of the SVPWM technique. Key-Words: Inverter – Puls...

Multilevel inverters have been widely used for highpower, high-voltage applications. Among the existing multilevel inverter topologies Cascaded inverter topology has many advantages over Neutral point clamped and Flying capacitor inverters, but it requires isolated DC sources which is a main drawback of this topology. A new topology with a reversingvoltage component requires fewer numbers of co...

In the last decades, the applications of power inverter increased rapidly. As a result, in spite of rectifier, an inverter with a high-power electronic oscillator has capability to convert direct current (DC) into alternating current (AC) in different forms. In this paper, a new fuzzy logic control (FLC) is suggested to an improved modeling inverter of a single-phase voltage source using LC fil...

This paper presents a novel scalar based pulse width modulation (PWM) algorithm for four-level asymmetrical dual inverter fed induction motor drive. In the conventional carrier based PWM algorithms for dual inverter fed induction motor drive, both inverters will be operated at all modulation indices. But, the proposed PWM algorithm operates only one inverter at lower modulation indices and othe...

In this paper, an Adaptive Neuro Fuzzy Interference System (ANFIS) is proposed for eliminating voltage harmonics present in the multilevel inverter. It is achieved by reducing the THD present in the multilevel inverter output voltage. Here, the voltage variation of the multilevel inverter is determined from the actual load voltage and the reference voltage. The voltage variation at different ti...

The above concept brings out the method for the multilevel inverters for generation of space vector pulse width modulation (SVPWM) signals. The small triangles formed by the adjacent voltage space vectors are called sectors. Such six sectors around a voltage space vector forms a hexagon called sub hexagon. The space vector diagram of a multilevel inverter can be viewed as composed of a number o...

Multilevel inverter is an effective and practical solution for increasing power demand and reducing harmonics of AC waveforms. Such inverters synthesize a desired output voltage from several levels of dc voltages as inputs. This paper analyzes the performance of cascaded five level inverter using hybrid pulse width modulation technique. It has been found that this technique reduces the switchin...