An Improved Efficiency of Single Phase Transformer Less PV Inverter Topology by NPC System
Journal Title: International journal of Emerging Trends in Science and Technology - Year 2014, Vol 1, Issue 9
Abstract
This paper an improved efficiency of single phase transformer less PV inverter topology by neutral point clamping system proposes how to improve the efficiency of single phase PV inverter topology without using of transformer. If we use a photovoltaic inverter connected to direct loads through transformer the efficiency is largely decreased due to the power losses and the line transformer is large, heavy and expensive. There is a strong trend in the photovoltaic inverter technology to use transformer less topologies in order to acquire higher efficiencies combining with very low ground leakage current. In this paper, a new topology, based on the H-bridge designed with IGBTs midpoint grounding by sequence diode switching is proposed (NPC). In this topology without use ac bypass circuit consisting of a diode rectifier and a switch with clamping to the dc midpoint we can achieve the improvement in efficiency while conversion and low leakage current. The topology is simulated and experimentally validated, and a comparison with other existing topologies is performed. High conversion efficiency and low leakage current are verified. The proposed topology is verified using MATLAB and the all results are validated.
Authors and Affiliations
Mr. K. Enoshan Kumar
Keywords
Related Articles
- EP ID EP221138
- DOI -
- Views 109
- Downloads 0
Corporate Governance in India
Corporate Governance in India has seen a paradigm shift and has been posing new set of challenges to the top echelons of management in various organizations includingorganizations from the financial sector. The increasin...
Winding Fault Detection in Power Transformer by SFRA with DOBLE M5100
The Doble M5100 is a robust and field proven instrument for detection of hidden fault in Power Transformer uses technique called Sweep Frequency Response Analysis (SFRA). SFRA is a tool that can give an indication of cor...
Product Data Clustering using Weighted Similarity Measure
In market basket analysis user ranking of products is very important in addition to the values of attributes of objects. Similarity based comparison between objects play a very important role in many business operations...
Design of Ejection System in Transfer Mould Tool and Justifying Material Selection of Rubber Bumper Spring Component
There are more advanced quality and productivity requirements on rubber products. Transfer moulding remains the most popular method for producing the associated rubber parts. The main phases in a transfer moulding proces...
The Polymorphism Identification of Reduced Folate Carrier 1 (RFC1) in Patients of Non Syndromic Cleft Lip with or Without Cleft Palate in Sumatera Utara
Research Objective: Cleft lip is the second most frequent congenital anomalies in Indonesia after Down Syndrome with the prevalence among children aged 24-59 months (Agency of Health Research and Development, Indonesian...