In this Paper, an Intelligent Direct Torque Control (DTC) method is proposed for controlling induction motor using Multilevel inverter with space Vector Modulation (SVM).A stage of Artificial Neural Network (ANN) is utilised for predicting the target parameters with the corresponding input parameters change in motor torque and flux. The change in motor torque and flux parameters are extracted f...

Multilevel Inverters are emerging technology playing a vital role in power electronics, Electric drive systems and Power systems etc. Here new multilevel topology is discussed. Cascaded HBridge (CHB) 7 level inverter is designed using Simulink, finally it is simulated and inverter switching signals are controlled using FPGA controller. H-bridges are connected seriously to achieve 7 level output...

Cascaded Hybrid MultiLevel Inverter (CHMLI) is an attractive topology for high voltage DC-AC conversion. This paper focuses on a single-phase five-level inverter with reduced number of switches. The inverter consists of a full bridge inverter and an auxiliary circuit with four diodes and a switch. The inverter produces output voltage in five levels: zero, +0.5Vdc, +Vdc, -0.5Vdc and –Vdc.. A nov...

The distributed generation (DG) systems based on the renewable energy sources have rapidly developed in recent years. These DG systems are powered by micro sources such as fuel cells, photovoltaic (PV) systems, and batteries. The micro grid concept consists of two stages, in the first stage the low level voltage from the pv cell is converted to high level voltage by using DC-DC converter. In th...

This The Permanent Magnet Synchronous Motors (PMSM) are used for medium power applications and preferred over conventional motors like Induction and Synchronous motors due its superior performance, efficiency and controllability. Normal voltage source inverters are suitable only for three phase drives. Cascaded multi-level inverters are used to improve the power quality. The Hexagram inverter h...

AbstractThis paper presents an investigation of five-Level Cascaded H – bridge (CHB) Inverter as Distribution Static Compensator (DSTATCOM) in Power System (PS) for compensation of reactive power and harmonics. The advantages of CHB inverter are low harmonic distortion, reduced number of switches and suppression of switching losses. The DSTATCOM helps to improve the power factor and eliminate t...

In this paper, a genetic algorithm (GA) optimization technique is applied to cascaded multilevel inverter to remove pre specified order of harmonics and to reduce THD. Genetic Algorithm is developed as the preferred solution algorithm of specific harmonic elimination (PWM-SHE) switching pattern. This paper describes an efficient genetic algorithm that reduces significantly the computational bur...

This project aims at using (PD-MCPWM) Phase disposition multi carrier pulse width modulation technique to reduce leakage current in a transformerless cascaded multilevel inverter for PV systems. Advantages of transformerless PV inverter topology is as follows, simple structure, low weight and provides higher efficiency , but however this topology provides a path for the leakage current to flow ...

Multilevel inverters have several advantages over the conventional two level inverters due to their lower switching frequency, reduced switching stresses, low EMI and EMC issues, ability to achieve high voltage levels, low THD etc. Multilevel inverters can synthesize the desired voltage from several levels of DC voltages. This paper presents the comparison of three level Flying capacitor and Ca...

In this paper a developed symmetric and asymmetric cascaded multilevel inverter is proposed. In asymmetric mode, the values of DC voltage sources are defined in a way that the number of output levels gets more than the condition when the symmetrical DC sources are used. In this regards, to calculate the required magnitudes of DC links several solutions are proposed. It’s obvious that the propos...