A study of TCSC optimal damping control parameters for different operating conditions

A Novel Method for Seeking Optimal Placement of TCSC to Damp Oscillations in Power Systems

“…The applications of TCSC have been identified the damping power oscillations and stability enhancement [3][4][5]. A problem of interest for large power systems is the mitigation of low frequency fluctuations, which often occurs between areas of the interconnected power systems.…”

“…The problem of designing TCSC controller or choosing the optimal placement of TCSC to improve power system stability improvement has been studied for a long time. However, some of these methods have several drawbacks [5], [7], [10][11][12].…”

Synchronized global Phasor Measurement based inter-area oscillation control considering communication delay

“…It has been demonstrated by Larsen et al [1] that estimated rotor angle difference between two areas is the best signal for inter-area oscillation damping via FACTS controllers. Estimated angle differences via local measurements were adopted as input signals for BPA's Slatt TCSC damping controller [2]. The estimation algorithm needs to be adjusted when there are changes in the source impedances and the system topology.…”

Nonlinear controller design of thyristor controlled series compensation for damping inter-area power oscillation

“…With the advent of the high power thyristor, the first thyristor controlled series compensation (TCSC) in the world was installed at Kayenta in 1992. Many papers and reports of the TCSC have been published and have shown that the TCSC can be used to increase stability and power transmission capability for large distance transmission systems, and to damp power oscillation and subsynchronous resonance (SSR) [2][3][4][5][6][7][8][9][10][11][12][13][14].…”

“…The usual design methods of the power oscillation damping controllers of the TCSC are based on approximate linearization models [5][6][7][8][9]. The problem with this control approach is that linear approximate models are valid if the system exhibits only small variations around the pre-fault operation point.…”