Within the last decade, there have been rapid changes in technology. Power electronics have played a vital role in the technological developments. Inverters are extensively used in power electronic applications for converting DC (Direct Current) to AC (Alternating current). The applications of inverters range from uninterrupted power supplies used in home appliances control to HVDC power transm...

This paper shows the Matlab/Simulink implementation of the current control in a single phase full-bridge power inverter. In order to increase the performances of the power inverter an LC filter is connected at the input. Mathematical modelling of the power inverter is based on the switching functions. Unipolar asymmetric PWM modulation method, and hysteresis current control will be analyzed for...

unlike traditional power grids, smart grids have the advantage of bidirectional power flow and having distributed generations. distributed generation systems are usually supplied by renewable sources which can cause unpredicted voltage fluctuations as a result of being intermittent. while traditional compensating devices deal with the problem of voltage fluctuation and reduced power quality wit...

This paper presents a strategy for vector control of Permanent Magnet Synchronous Motor (PMSM) drive fed with a diode clamped multilevel inverter. In the proposed work the conventional 2-level inverter is replaced with three and five level inverters in PMSM drive system. The implementation of multilevel inverters improved the torque and speed response under various operating conditions. PI cont...

This paper presents a deadbeat-based proportional-integral (PI) controller for a stand-alone single-phase voltage source inverter using a battery cell as the primary energy source. The inverter system is simulated in MATLAB/Simulink. It consists of a lead acid battery, third-order Butterworth low-pass DC filter and AC filter, H-bridge inverter, step-up transformer, and a variety of loads, as we...

This paper presents an improved current control strategy for a three-phase grid-connected inverter under distorted grid conditions. In terms of performance, it is important for a grid-connected inverter to maintain the harmonic contents of inverter output currents below the specified limit even when the grid is subject to harmonic distortion. To address this problem, this paper proposes a modul...

We present an analytical model for computing the supply current, delay, and power in a submicron CMOS inverter using a modified version of the ‘n-th power law’ MOSFET model [2]. By first computing definable reference points on the output voltage waveform and then using linear approximations through these points to find the actual points of interest, the desired speed and accuracy of the inverte...

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....

This paper presents the designing of a low powered (25-30 watts), portable and cost effective solar micro-inverter wherein the single solar panel is able to run the AC loads along with DC loads. The system consists of a solar panel, DC-DC push-pull converter, DC-AC inverter, LC filter and the test loads. The solar cell powers DC-DC push pull converter which boosts the input DC voltage into the ...

In this project, a multilevel inverter was designed and implemented to operate a stand-alone solar photovoltaic system. The proposed system uses selective harmonics elimination pulse-width modulation (PWM) in the multilevel inverter to convert DC voltage from battery storage to supply AC loads. In the PWM method, the effectiveness of eliminating low-order harmonics in the inverter output voltag...