Design of a Transformer-less Grid-Tie Inverter Using Dual-Stage Buck and Boost Converters

Sajib CHAKRABORTY; Md. Abdur RAZZAK

Makale detayları

Design of a Transformer-less Grid-Tie Inverter Using Dual-Stage Buck and Boost Converters

Yazarlar:

Sajib CHAKRABORTY | Md. Abdur RAZZAK

Yayıncı:

İlhami ÇOLAK

Dergi:

International Journal Of Renewable Energy Research 2014 Vol.4 Issue 1, pp.91-98

Belge Tipi:

Makale

Yayın Tarihi:

2/2014

Belge Dili:

İngilizce

Document ID (Org No.):

2000818781

Sıklık:

Aylık

pISSN:

1309-0127

Özet:

 

This paper introduces a topology for transformer-less pure sine wave grid-tie inverter (GTI) for photovoltaic (PV) applications. The proposed GTI employs a dual-stage switch mode boost converter, a dual-stage switch mode buck converter, an H-bridge inverter and a T-LCL immittance conversion circuit. For switching of GTI power circuit, a combination of sinusoidal pulse width modulation (SPWM) and square wave signal under grid synchronization conditions are applied. As the suggested method is entirely transformer-less, it astonishingly reduces Total Harmonic Distortion (THD) which is less than 0.1%, minimizes the size of the inverter and increases inverter efficiency up to 97%. The T-LCL immittance conversion circuit not only reduces the harmonic distortation of inverter output but also provides a nearly constant output current thereby stabilizing the system instanteously. Using the designed values of circuit components, the overall performance of the proposed inverter is simulated by using PSIM software. The simulation results not only show that the proposed inverter eliminates vast harmonics but also prove that it is highly efficient, compact in size and cost effective due to being transformer-less.

Makale detayları

Design of a Transformer-less Grid-Tie Inverter Using Dual-Stage Buck and Boost Converters

Yazarlar: Sajib CHAKRABORTY | Md. Abdur RAZZAK

Yayıncı: İlhami ÇOLAK

Dergi: International Journal Of Renewable Energy Research 2014 Vol.4 Issue 1, pp.91-98

Belge Tipi: Makale

Yayın Tarihi: 2/2014

Belge Dili: İngilizce

Document ID (Org No.): 2000818781

Sıklık: Aylık

pISSN: 1309-0127

Sayı

Yazarlar:

Sajib CHAKRABORTY | Md. Abdur RAZZAK

Yayıncı:

İlhami ÇOLAK

Dergi:

International Journal Of Renewable Energy Research 2014 Vol.4 Issue 1, pp.91-98

Belge Tipi:

Makale

Yayın Tarihi:

2/2014

Belge Dili:

İngilizce

Document ID (Org No.):

2000818781

Sıklık:

Aylık

pISSN:

1309-0127