In this paper, a hysteresis current control technique for a single-phase five-level inverter with cascaded H-bridge topology is proposed. The basic study to implement the logic for correct voltage-level selection, various schemes available in the literature have been described and will provide a useful framework and point of reference for the future development of hysteresis modulation for mult...

This paper presents the simulation of 3, 5, 7level inverters. The realization of these three different levels is done by cascading one, two, three H-bridges in series respectively in MATLAB. The use of simple control strategy which is applied for switching the switches at appropriate conducting angles with proper delays is presented in this paper. The reduction in harmonics is done with the hel...

1,2Student, Department of Electrical Engineering, NIT Durgapur, West Bengal, India 3Professor, Department of Electrical Engineering, NIT Durgapur, West Bengal, India ---------------------------------------------------------------------***--------------------------------------------------------------------AbstractThis paper presents the design of photovoltaic module, where the panel is construct...

Analysis of the reason of cascade H-bridge inverter topology using carrier phase shift modulation method cannot compensate the harmonic, using carrier level layered modulation method can solve the problem of cascade H-bridge topology that it cannot compensate harmonic problems. Experimental results show that the modulation algorithm can effectively reduce the modulation delay, improve the contr...

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...

This paper presents a Selective Harmonic Elimination-PWM technology (SHE-PWM) employing H-Bridge multilevel inverter configuration. In this method variable DC voltage is used and the lower order harmonics are eliminated, without affecting the structure of the inverter. This method gives constant switching angle, so it reduces the number of steps required for offline calculation. The proposed me...

We know that, the inverters are broadly classified as two level inverters and multilevel inverters. This conventional inverters have many limitations at high power and high voltage applications. However, the multilevel inverter becomes popular for high power and high voltage applications due to their increased number of levels at the output. As number of levels increases, the harmonics are redu...

ABSTRACT: New symmetrical multilevel inverter topology with reduced number of power electronic switches is introduced in this paper, which results in reduction of installation area, converter cost, losses, and have simplicity of control system. The proposed topology consists of series connected sub multilevel inverter blocks. Principles of operation and switching functions are well analyzed. Si...

For medium voltage applications, multilevel inverters are used. One of its classic topologies is the Cascaded H-Bridge, which requires isolated DC voltages to work. Depending on ratio used in H-bridge can be classified into symmetric and asymmetric. In comparison between asymmetric inverters, latter generate an AC output with more levels. most documented binary trinary. The last 3n = 27 levels ...