High Impact Factor : 4.396 icon | Submit Manuscript Online icon |

Grid Connected WECS with Multi-Level NPC Shunt Active Power Filter


S. Dhanapal , Institute of Road and Transport Technology, Erode- 638316, Tamilnadu, India; R. Anita, Institute of Road and Transport Technology, Erode- 638316, Tamilnadu, India


Wind Energy Conversion, High Step-Up DC-DC Boost Converter, Three-Level NPC Voltage Source Inverter, Reference Current Generation, Total Harmonic Distortion (THD)


This paper presents the efficient operation of three-level Neutral Point Clamped (NPC) Shunt Active Power Filter (SAPF) for interconnecting the WECS (Wind Energy Conversion System) to the utility grid using an extended reference signal generation scheme. The proposed topology provides wind power generation in addition to the current compensation function. The SAPF wants a supply of energy for compensate the current based disturbances in the load current, which utilizes the WECS with DC-DC converter like a DC power source. The shunt connected inverter controls the DC-link voltage along with the active and reactive power transferred from the renewable energy sources to grid with improved power quality. The modified p-q theory is used for reference current generations. To maintain the DC link voltage as constant and compensate the power losses of the Voltage Source Inverter (VSI) a PI controller is used in the outer control loop. The gating signals for the switches are generated from the carrier based Sinusoidal PWM (SPWM) technique. The main features of the proposed system are that it will provide the continuous current based compensation for throughout the day and recompense the voltage interruption. These systems make use of the wind energy and accordingly save the electrical energy and offer uninterruptable power supply to important/sensitive load. The simulation results are presented to verify the effectiveness of the proposed configuration.

Other Details

Paper ID: IJSRDV4I50115
Published in: Volume : 4, Issue : 5
Publication Date: 01/08/2016
Page(s): 464-469

Article Preview

Download Article