Selection of robust installing locations and feedback signals of FACTS-based stabilizers in multi-machine power systems

Application of a Damping Torque Analysis index for coordinated tuning of stabilisers in a large power grid

“…While the effectiveness of a DTA index has already been verified [8][9][10][11][12][13][14][15][16][17][18], in this section, eigenvalue calculations are used to demonstrate the effectiveness of the proposed stabiliser-tuning strategy.…”

“…In [8][9][10], DTA has been extended for application in a multi-machine power system and demonstrated to be basically equivalent to modal analysis. The DTA index denotes the impact from a reconstructed feedback signal of a stabiliser to the selected oscillation loop and is a summary in two loops.…”

“…DTA indices for a power system stabiliser (PSS), flexible AC transmission system (FACTS)-based stabiliser, static synchronous compensator (STATCOM)-based stabiliser and energy storage system (ESS)-based stabiliser are obtained in [11][12][13][14][15][16] according to the PhillipsHeffron model. They can be used to choose location [17], evaluate contribution [9], adjust parameter [18] and set the feedback signals of the stabilisers [8].…”

A Comprehensive Survey of Optimal Placement and Coordinated Control Techniques of FACTS Controllers in Multi-Machine Power System Environments

“…These problems are study in literature, a modal analysis algorithm has been suggested for placement of SVCs and selection of stability signals in power systems environments [14]. A new eigen solution free method of modal control analysis for the selection of the robust installing locations and feedback signals of FACTS based stabilizers in large-scale power systems is presented in [15]. Many literatures studies have made it clear that variable impedance apparatus such as a static Var compensator (SVC) and a variable series capacitor (VSrC) can improve the steady-state stability (or the small signal stability).…”

“…References [3]- [5], classify three broad categories such as a sensitivity based methods, optimization based method, and artificial intelligence based techniques for placement of FACTS controllers from different operating conditions viewpoint in multi-machine power systems. The various sensitivity based methods have been proposed in literatures includes eigen-value analysis based methods [6]- [12], modal analysis techniques [13]- [15], index methods [16]- [23], residue-based methods [24]- [25], [43], [168], [169], and other sensitivity based methods [26]- [37], [53], [157]- [167], [201].…”