Design and Comparison of PI and Back-Stepping Control for Single Phase Two-Stage Grid Connected PV System


Syed Qaiser Ahmad Shah,Khalid Mahmood,Syed Shafiq Ahmad Shah,Mehr-e-Munir,MuhammadAamir Aman,



Maximum power Point tracking (MPPT),Photovoltaic (PV),stepping Control (BSC), Total Harmonics Distortion (THD),


In grid connected two stage PV system some Control technique are applied to get maximum power point, voltage adjustment of boost converter , inverter voltage , DC link voltage control, grid current control, power factor improvement and reduction in total harmonics distortions. In this paper the two control techniques like back-stepping control and PI control are designed and their results are compared. The output behavior of the PV array is non-linear, there is a continuous change in output power, due to change in the temperature and change in irradiations. Due to this nonlinear behavior of PV the maximum power point is affected. To achieve maximum power point a special type of tracking system is used. In this paper the main objective like dc-link voltage control, grid current control, power factor improvement and reduction in total harmonics


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Author(s): Syed Qaiser Ahmad Shah, Khalid Mahmood, Syed Shafiq Ahmad Shah, Mehr-e-Munir, Muhammad Aamir Aman View Download