Design and Modeling of Solar Photovoltaic System Using Seven-Level Packed U-Cell (PUC) Multilevel Inverter and Zeta Converter for Off-Grid Application in India (original) (raw)

IJERT-Analasis Of Photovoltaic Cell An Application Of A Level Shifted Cascaded Multilevel Inverter

International Journal of Engineering Research and Technology (IJERT), 2014

https://www.ijert.org/analasis-of-photovoltaic-cell-an-application-of-a-level-shifted-cascaded-multilevel-inverter https://www.ijert.org/research/analasis-of-photovoltaic-cell-an-application-of-a-level-shifted-cascaded-multilevel-inverter-IJERTV1IS7217.pdf The past few years have seen many milestones in the development of streamlined, standardized requirements for utility interconnection of small-scale renewable generating facilities, particularly solar photovoltaic (PV) systems. The PV array generates DC power with a variable voltage and current. It is possible to supply DC loads directly from the PV array. Direct coupling of PV array and load is typically applied for applications exhibit intrinsic storage capabilities like water pumping or cooling systems. If AC loads are to be supplied, an inverter is required, transforming the DC power from the PV array to AC power at prescribed voltage and frequency. Battery is needed as a storage device that supplies to the load incase of indirect supply of power from the PV array. This paper focuses on the grid connected PV system. These systems are usually connected to the low voltage distribution grid. Today, grid connected PV systems, they always supply the maximum available power while voltage and frequency are determined by the mains. They are cheaper than the standalone systems and are easy to operate, as they require no storage equipment.

Comparative Study of Multilevel Inverter Topologies Application with Photovoltaic Cell

2017

1,2 Department of Electrical Engineering, Walchand College of Engg., Sangli-416415 Abstract – This paper proposes the solar power generation with dc-dc converter and seven level inverter. Here in paper comparison between the diode clamped inverter which is traditional method and ne proposed topology of inverter is made. Photovoltaic cell is used as dc voltage source which is fed to dc-dc converter and then to dcac inverter. The new proposed topology has less number of power electronic switches as compared to any traditional inverter topology. Here in this paper we have discuss in what aspect new proposed topology is advantageous to the traditional one.

Design of a multi-level inverter for solar power systems with a variable number of levels technique

International Journal of Power Electronics and Drive Systems (IJPEDS), 2023

Overall harmonic distortion and losses will grow during an energy conversion process, while power stability will be reduced. Multilevel inverter technologies have recently become very popular as low-cost alternatives for a variety of industrial purposes. The design's minimal benefits include reduced component losses, decreased switching and conduction losses, along with enhanced output voltage and current waveforms. Also, a reduction of the harmonic components of the current and output voltage of the inverter are the most important requirements in multilevel inverters. A seven-level inverter design is presented in this paper that is simulated using MATLAB/Simulink. The inverter converts the DC voltage from three photovoltaic (PV) systems into AC voltage at seven levels. During an outage of one of the PV systems, the inverter will make a switching reduction and supply the AC voltage as a five-level inverter. The inverter’s total harmonic distortion (THD) when it performs as a five-level or seven-level inverter is 4.19% or 1.13% respectively. The modulation technique used is phase disposition via six carriers and a single reference signal at the fundamental frequency.

Implementation of Five Level Inverter for Solar Power System

A five-level inverter implemented in this paper for injecting of the real power of the solar power into the grid to eliminate the switching losses, harmonic distortion, and electromagnetic interference caused by the switching operation. five level inverter can be designed with combination of two dc capacitors which are connected to the nverter. The switches of the full-bridge inverter are triggered in low frequency synchronous with the utility voltage to convert the output voltage of the dual-buck converter to a five-level ac voltage. The output current of the five-level inverter is controlled by producing a sinusoidal current in phase with the utility voltage to inject into the grid this system can be designed by matlab/simulink software.

Review of Solar Power Generation with Seven- Level Inverter

2016

Multilevel Inverter, specially cascaded H-bridge type is becoming more applicable now-adays due to their improved voltage and current waveforms. This system is composed of dc/dc power converter and a new seven-level inverter. The dc/dc power converter integrates a dc-dc boost converter and a transformer to convert the output voltage of the solar cell array into two independent voltage sources with multiple relationships. Seven level inverter is configured using capacitor selection circuit and a full-bridge power converter, connected in cascade. The capacitor selection circuit convert the two output voltage sources of dc-dc converter into a three-level dc voltage, and full bridge power converter further converts this three-level dc voltage into a seven-level ac voltage. Likewise sinusoidal output generated which is in phase with the utility voltage and fed into the utility. The salient feature of above converter is it require only six power electronic switches and only one power elec...