Reduction of Power Quality Issues by Resonant Controller Based STATCOM in Wind power plant

Wind Power Plants (WPPs) installed at the end of a distribution feeder are beneficial in reducing fossil fuel use as well as power transmission loss. This paper is about The state-of-the-art in the field of resonance problems in WPPs. Firstly, a generic WPP is modeled according to the equivalent circuits of its passive and active components. There are many power quality issues in wind farms such as voltage sag, swell and harmonics arise due to grid, nonlinear load and three phase faults. These voltage fluctuations can be eliminated with the help of advanced reactive power compensation devices . To reduce such power quality issues, it is essential to design, model and analyse the FACTS (Flexible AC Transmission line) device. In this project, ST ATCOM is used as a compensating device . Also, the compensator performance is analysed with the help of Proportional Resonant (PR) controller device. The STATCOM is connected parallel with the transmission line. When fault occurs, it will inject or absorb the reactive power to the line through the transformer according to the voltage requirement. The whole system is simulated through MATLAB/SIMULINK application. The simulation gives the effective influence of STATCOM on the improvement of voltage profile as well as reduction of Harmonics in grid connected Wind Energy Conversion System.

کلیدواژه ها:

Resonance ، Wind ، STATCOM ، Power quality