Design Approach of Grid Coupled Solar Inverter

Bandla Pavan Babu,Ramani Kannan,R Rajasingh,V Indragandhi,S.A Abdul Karim,M.H Yusof,N Zainuddin,N Sa'Ad

doi:10.1051/matecconf/201822506001

Bandla Pavan Babu, Ramani Kannan + Show 6 more

Open Access

https://doi.org/10.1051/matecconf/201822506001

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Abstract

In novel times, more demands are gained by grid connected solar inverters along with the upgrading of the solar energy generation. In grid connected solar power generation, if there is increase in placing more number of solar inverters it may result in effecting the power quality issues. Solar Grid Tied Inverter system is a electrical power generating system that is coupled to the functioning power grid. This power generating system unit consists of elements like Photovoltaic array, DC to DC converter, DC to AC converter, single phase/three phase converter, and AC Source. The inverter converts DC power generated by the array of photovoltaic cells into AC power and this generated AC power is fed to the connected AC loads. If the amount power generation is exceeding the power demanded, excess AC power is supplied to the grid. With this novel approach we can minimize the use of the AC power from the power grid and also even make a generation to the power grid and this is measured with help of net metering. In this paper designing of 281.6Kw grid tied solar power generation and technical specifications required for them are proposed.

Highlights

Indian government has a quest to install hundred Giga Watts of solar power energy by the end of 2022[1,2,3].Due to the increase in energy demands for the last few decades; there is increase in natural problems and reduction of fossil fuel assets
With thereduction in solar cells cost, it is economically feasible for solar energy conversion to electric energy [47].The solar electric power generation system includes PV panels, DC to DC converter, DC to AC inverter, DC cabling.Maximum power point tracking (MPPT) is a technique preferred to increase the overall efficiency of photovoltaic systems by drawing maximum power available at all times irrespective of irradiation and temperature conditions
Inverter output voltage magnitude must be same as functioning grid voltage, phase and phase sequence of inverter output must be same as functioning grid phase and phase sequence, the inverter output frequency must be same as functioning grid frequency which is shown in Fig 1 shown below

Summary

Introduction

Indian government has a quest to install hundred Giga Watts of solar power energy by the end of 2022[1,2,3].Due to the increase in energy demands for the last few decades; there is increase in natural problems and reduction of fossil fuel assets. This leads to think about for another sources i.e., renewable energy sources especially Solar Energy. Without MPPT technique when the power generated by PV systems connected directly it results in poor efficiency of the system. Inverter output voltage magnitude must be same as functioning grid voltage, phase and phase sequence of inverter output must be same as functioning grid phase and phase sequence, the inverter output frequency must be same as functioning grid frequency which is shown in Fig 1 shown below

Design considérations

PV Panel Characteristics 3