Integration of wind energy resources into the grid creates several challenges for power system dynamics. More specifically, Type-3 turbines are susceptible to subsynchronous control interactions (SSCIs) when they become radially connected a series-compensated transmission line. SSCIs can cause disruptions in generation and result significant damage farm (WF) components equipment. This paper pro...

Improving transmission lines (TL) steady-state stability limit can be achieved by Static Synchronous Series Compensators (SSSC) that work as a converter-based compensator. The modification of the SSSC function to inject both active and reactive power into TL improves its performance according different indices. improvement indices include reduction losses, enhancement dynamic margin voltage pro...

this paper proposes an optimal transmission expansion planning (tep) which is based on determining share of each line in merchandizing surplus (ms) of system, determining by independent system operator (iso). the more share of a line in ms of system denotes the priority of a line for expansion. the procedure of determining ms of each line in a power system is based on determining the ms share o...

Replacing conventional generation by power electronics based changes the dynamic characteristics of system. This results among others in increased susceptibility to sub synchronous oscillations (SSO). paper proposes a systematic procedure for mitigating interactions between DFIG and series compensated transmission line using phase imbalance compensation (PIC) concept. The impact parallel PIC on...

The new phase-shifter configuration described in this report uses a negative group delay (NGD) active circuit. In this topology, a classical transmission line is set in cascade with an NGD circuit whose phase slopes are alike, but opposite, to get a constant and broadband phase shift. The proposed approach was validated through the design and measurement of a phase shifter, which exhibited a co...