Power Quality Improvement in PV fed GridConnected Three-Level NPC Converter

The multilevel converters (MLC) are utilized from less switching loss point of view from low, medium to high power applications. The paper discuss, about the SPV grid tied applications by using neutral point clamped (NPC) converter. Power quality is the major attribute by getting the system worked in closed loop control . Neutral point voltage fluctuations are kept within limit with the help of controller. Power flow from DC to AC grid side is investigated for unity power factor correction. PV is fed to the grid for three phase applications and promising results gives the validation for the system performance.

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