Rapid MPPT of Grid Tied Photovoltaic System with Quadratic Converter using Sliding Mode like Controller

Umesh Shinde, Sumant Kadwane, Snehal Gawande

Abstract


Two stage micro-inverters are used for low power grid connected photovoltaic systems. In this paper sliding mode like controller for maximum power point tracking (MPPT) applied to the grid connected Photovoltaic (PV) system with front end quadratic converter has been investigated. Quadratic converter for front end ensures very high gain, when input is supplied by low voltage single PV module. The primary advantage of this control configuration is the improved dynamic response, particularly for rapidly varying environmental conditions. Owing to improved dynamic response, overall efficiency of system is higher and ripple on PV terminals and DC link capacitor is minimum. This paper presents the effectiveness of the proposed controller using Matlab based simulation results, which are superior as compared to popular Incremental Conductance method.

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Keywords


Photovoltaic system; maximum power point tracking; quadratic converter; sliding mode controller.

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References


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