DOI: 10.22068/IJEEE.13.2.1

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Fallah ardashir J, Sabahi M, Hosseini S H, Babaei E, Gharehpetian G B. A Grid Connected Transformerless Inverter and its Model Predictive Control Strategy with Leakage Current Elimination Capability. IJEEE. 2017; 13 (2)
URL: http://ijeee.iust.ac.ir/article-1-938-fa.html
A Grid Connected Transformerless Inverter and its Model Predictive Control Strategy with Leakage Current Elimination Capability. . 1396; 13 (2)

URL: http://ijeee.iust.ac.ir/article-1-938-fa.html


چکیده:   (188 مشاهده)

This paper proposes a new single phase transformerless PV inverter for grid connected photovoltaic (PV) systems. It consists of six power switches, two diodes, one capacitor and filter at the output stage. The neutral of the grid is directly connected to the negative terminal of the source. This results in constant common mode voltage and zero leakage current. Model predictive controller (MPC) technique is used to modulate the converter to reduce the output current ripple and filter requirements. The main advantages of this inverter This paper proposes a new single phase transformerless Photovoltaic (PV) inverter for grid connected systems. It consists of six power switches, two diodes, one capacitor and filter at the output stage. The neutral of the grid is directly connected to the negative terminal of the source. This results in constant common mode voltage and zero leakage current. Model Predictive Controller (MPC) technique is used to modulate the converter to reduce the output current ripple and filter requirements. The main advantages of this inverter are compact size, low cost, flexible grounding configuration. Due to brevity, the operating principle and analysis of the proposed circuit are presented in brief. Simulation and experimental results of 200W prototype are shown at the end to validate the proposed topology and concept. The results obtained clearly verifies the performance of the proposed inverter and its practical application for grid connected PV systems.are compact size, low cost, flexible grounding configuration. Due to brevity, the operating principle and analysis of the proposed circuit are presented in brief. Simulation and experimental results of 200W prototype are shown at the end to validate the proposed topology and concept. The results obtained clearly verifies the performance of the proposed inverter and its practical application for grid connected PV systems.

     
نوع مطالعه: Research Paper | موضوع مقاله: 1-Power Converters
دریافت: ۱۳۹۵/۲/۲۲ | پذیرش: ۱۳۹۶/۲/۲۵ | انتشار: ۱۳۹۶/۲/۲۵

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