الفهرس 
Power System StabilityOnly 14 pages are availabe for public view
 |  | from | 135 |  |  |
| | | from | 135 | | |
Abstract
Wide-area damping controllers (WADC), as auxiliary control for flexible AC transmission systems (FACTS) devices, have shown high capability in enhancing power system stability. The varying nature of power system operating point requires the design of an adaptive WADC. The majority of the existing control design techniques rely on empirical approaches at one or more of their design stages, which makes it difficult to be implemented within adaptive control techniques. Therefore, the purpose of this study is to provide a systematic procedure that is based entirely on numerical approaches for designing a FACTS-based WADC. The proposed procedure, involving control loop selection, control design and adaptive time delay compensation, can then be implemented in adaptive WADC schemes. Firstly, a novel optimization-based signal selection methodology is proposed. The proposed methodology employs a combination of multiple input signals to optimally generate a signal with the required modal objectives like enhancing observability and reducing interaction between different control loops. Multiple Approaches for formulating the signal selection optimization problem have been proposed and compared. After that, another optimization problem is formulated to tune the controller parameters. Both optimization problems have been evaluated using two optimization techniques: Particle swarm optimization (PSO) and self-adaptive multi- population elitist Jaya algorithm (SAMPE-JAYA). Finally, an adaptive delay compensator is designed to mitigate the effects of communication time delays.