In this paper family of multilevel inverter topology with reduced number of power switches is presented. The proposed inverter can generate both even and odd level. The proposed topology is suitable for symmetric structure. The proposed symmetric inverter results in reduction of power switches, power diode and gate driver circuits and also it may further minimize the installation area and cost....

Linear AC power supplies can be replaced by their nonlinear switching counterparts due to the lower voltage drops and higher efficiency and power density of switching-mode inverters. Multilevel cascaded H-bridge (CHB) converters are the preferred inverter structure because of modular configuration, control, and protection. The output voltage quality in CHB converters depends on the number of ou...

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...

In this paper nine level Modified Cascaded H-Bridge Multilevel Inverter (CHB-MLI) is analyzed for the various multi-carrier Pulse Width Modulation strategies. For the same nine level inverter output this particular topology has reduced count of switches, on comparing with the conventional Cascaded H Bridge Multilevel Inverter. For a single phase, nine level inverter output this topology require...

A novel three phase multilevel inverter with a small number of switching devices is proposed. Large electrical drives and utility application require advanced power electronics converter to meet the high power demands. As a result, multilevel power converter structure has been introduced as an alternative in high power and medium voltage situations. A multilevel converter not only achieves high...

This paper proposes two improved cascaded H-bridge (ICHB) multilevel inverters that feature voltage-boosting capability. The conventional with a front-end dc–dc boost converter was restructured for single-stage operation. developed three-level topology not only saves one power switch but also exhibits lower voltage stress across its capacitor. Extension to five-level generation introduced by me...

This paper proposes a novel topology of multilevel current source inverter which is suitable to apply in low/medium voltage. The proposed topology is capable of producing desirable bidirectional output current levels. Furthermore, it can employ symmetrical DC current sources as well as asymmetrical ones which is a significant advantage. Asymmetrical mode makes it possible to generate a great nu...

Asymmetrical structure is used to reduce the number of bridges and gate drive circuits and DC sources. This structure therefore provides the capability to produce higher voltages at higher speeds with low switching frequency which has inherent low switching losses and high converter efficiency. Newton Raphson (N-R) algorithm is investigated for the selective harmonic elimination (SHE) to calcul...

A detailed model and analysis of a five-level cascaded H-bridge (CHB) multilevel inverter with different current control methods are presented. Simulation models the CHB hysteresis controller, PI controller using SPWM technique predictive have been built to demonstrate system performance regard load THD reference tracking. In controlling current, controllers problem ripple phase lag, respective...