Published Paper Details:

The complexity of the power system and level of integration of Wind energy into the power system has significantly increased, causing voltage instability problem across many power systems. Voltage stability is concerned with maintaining appropriate voltage profile across all the buses in the power system .Maintaining a stable and secure operation of a power system is therefore a very important and challenging issue.In this thesis the voltage stability analysis of Doubly Fed Induction Generator (DFIG ) integrated system was analyzed using Power system Analysis Toolbox.(PSAT)The analysis of voltage stability was carried out using Bifurcation methodology. The IEEE14 bus system was re modeled by integrating DFIG at bus number 1.The Power Flow analysis was carried out using Newton Raphson method and the Voltage profile at all the buses were noted.The Eigen value analysis was carried out for the given test bus system and it was identified that there are no positive Eigen values indicating that the system possesses voltage stability and there are eight complex pair indicating that the IEEE14 bus system may cause small signal instability.The Time domain analysis was carried out to study the Small Signal stability on rotor speed and Excitation voltage and it revealed that the system shows increased level of damping there by indicating that the integration of DFIG improves Small Signal Stability.