Design and Real-Time Implementation of Transformer-less Pure Sine-Wave Inverter

2020 International Conference on Engineering and Emerging Technologies (ICEET) Pub Date : 2020-02-01 DOI:10.1109/ICEET48479.2020.9048200

Sajid Sarwar, S. Aslam, Wajahat Arsalan, Muhammad Umar Sajjad, Abubaker Ali Khan, Omar Shami

{"title":"Design and Real-Time Implementation of Transformer-less Pure Sine-Wave Inverter","authors":"Sajid Sarwar, S. Aslam, Wajahat Arsalan, Muhammad Umar Sajjad, Abubaker Ali Khan, Omar Shami","doi":"10.1109/ICEET48479.2020.9048200","DOIUrl":null,"url":null,"abstract":"Transformer is the basic building block of the classical photovoltaic inverter. However, it has certain drawbacks i-e difficult to install, heavy weight, add complexity to the system, in efficient and increase total harmonic distortion. Therefore, this paper presents the design and real-time implementation of 1kW transformer less pure sine wave inverter. Input to the inverter is the 12 V regulated DC voltage from photovoltaic panel and output is the standard grid output i-e 220V with 50Hz frequency. The proposed topology is the two stage inverter, the first stage is DC/DC converter connected with the Photovoltaic panel to boost the regulated 12V DC to 320V DC and second stage is DC/AC inverter controlled by high frequency Sinusoidal Pulse Width Modulation signal and output of inverter is connected to load through passive filter to provide pure sinusoidal 220V with 50 Hz frequency. The simulation results are presented by first developing the code of SPWM in MPLAB and then simulating the inverter in Proteus software. At last, it is real-time implemented and tested for resistive load and the output voltage and and current is displayed on LCD.","PeriodicalId":144846,"journal":{"name":"2020 International Conference on Engineering and Emerging Technologies (ICEET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 International Conference on Engineering and Emerging Technologies (ICEET)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEET48479.2020.9048200","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Transformer is the basic building block of the classical photovoltaic inverter. However, it has certain drawbacks i-e difficult to install, heavy weight, add complexity to the system, in efficient and increase total harmonic distortion. Therefore, this paper presents the design and real-time implementation of 1kW transformer less pure sine wave inverter. Input to the inverter is the 12 V regulated DC voltage from photovoltaic panel and output is the standard grid output i-e 220V with 50Hz frequency. The proposed topology is the two stage inverter, the first stage is DC/DC converter connected with the Photovoltaic panel to boost the regulated 12V DC to 320V DC and second stage is DC/AC inverter controlled by high frequency Sinusoidal Pulse Width Modulation signal and output of inverter is connected to load through passive filter to provide pure sinusoidal 220V with 50 Hz frequency. The simulation results are presented by first developing the code of SPWM in MPLAB and then simulating the inverter in Proteus software. At last, it is real-time implemented and tested for resistive load and the output voltage and and current is displayed on LCD.

查看原文本刊更多论文

无变压器纯正弦波逆变器的设计与实时实现

变压器是经典光伏逆变器的基本组成部分。但也存在安装困难、重量大、增加系统复杂性、效率低、总谐波失真增大等缺点。因此，本文提出了1kW无变压器纯正弦波逆变器的设计与实时实现。逆变器输入为光伏板12v直流稳压，输出为50Hz频率的标准电网输出i-e 220V。本文提出的拓扑结构为两级逆变器，第一级是与光伏板连接的DC/DC变换器，将稳压的12V DC升压到320V DC;第二级是由高频正弦脉宽调制信号控制的DC/AC逆变器，逆变器输出通过无源滤波器与负载连接，提供频率为50hz的纯正弦220V。首先在MPLAB中开发SPWM的代码，然后在Proteus软件中对逆变器进行仿真，给出了仿真结果。最后，对电阻性负载进行了实时实现和测试，并在LCD上显示输出电压和电流。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2020 International Conference on Engineering and Emerging Technologies (ICEET)

自引率

0.00%

发文量