Subsynchronous Resonance in Power Systems

Genetic Algorithm and Simulated Annealing: A Combined Intelligent Optimization Method and Its Application to Subsynchronous Damping Control in Electrical Power Transmission Systems

“…This is the basic principle of SSR mitigation using SVC. As shown in (10), this method simultaneously causes fractional currents.…”

“…The turbine-generator shaft system responds to disturbances with oscillations at its torsional natural frequencies. Therefore, TI-SSR can be viewed as a stability phenomenon of the linearized system model [9][10]. In other words, their stability and design of control parameter can be investigated with the eigenvalues of the small-signal model obtained at a certain working point [10].…”

“…Therefore, TI-SSR can be viewed as a stability phenomenon of the linearized system model [9][10]. In other words, their stability and design of control parameter can be investigated with the eigenvalues of the small-signal model obtained at a certain working point [10]. In our study, for each of the concerned operation conditions, a detailed linearized system model of the studied system is developed.…”

Discrete-Time Dynamic Model of NGH Damper

“…However, use of series capacitors in transmission lines may cause adverse interactions between the electrical and mechanical systems, which is detrimental to the turbine-generator shaft system [1], [2]. This phenomenon is known as subsynchronous resonance (SSR).…”

Subsynchronous resonance and its mitigation for power system with unified power flow controller

“…Although series capacitor compensation can provide good economical profit, the risk of SSR (Subsynchronous Resonance) could be brought to the power system at the same time [4,5]. Meanwhile, with the rapid development of the power electronics, flexible AC transmission system (FACTS) devices are widely used in the power system [6][7][8][9].…”