Abstracto

Stability Analysis of an Integrated System Connected to a Grid Using a Unified Power Flow Controller

Vijayanandh.A, Santhoshkumar .T

This project presents the analyzed results of an integrated seashore wave and offshore wind farm fed to a power grid through a unified power flow controller (UPFC) to simultaneously achieve power-fluctuation mitigation and stability improvement. A PID controller of the proposed UPFC is designed by using modal control theory to render adequate damping characteristics to the studied system. A frequency-domain approach based on a linearized system model using eigenvalue analysis and a time-domain scheme based on a nonlinear system model subject to disturbance conditions are systematically carried out. The inherent power fluctuations injected to the power grid can also be effectively mitigated by the proposed control scheme. The simulation of the proposed model was carried out using MATLAB/PSAT and the effective performance was analyzed.