Co-ordinated control of inter-area oscillations using SMA and LMI

Abstract

Chapter 2-Mathematical Background .

Applying a robust control technique to damp low frequency oscillations in the WECC

“…Moreover, the design of the controller ensures that there is no negative interaction amongst the individual controls. Also, this approach reduced the complexity of the LMI optimization to such an extent that it could be applied to larger and more complex power system problems; an issue which had previously hindered its usage on big systems [19][20]. Therefore, the novelty of this paper lies in extending the logic of SMA and integrating it with the LMI technique to develop a single-gain feedback controller that is capable of damping low frequency oscillations in large systems.…”

“…Ref. [20] solves this problem by reducing the system size to the relevant modes of oscillations using a modification of the SMA [21] technique. This paper uses the algorithm developed in [20] on the 127-bus equivalent model of the WECC system created in MATLAB and shows how it can be extended to a detailed model created in PSLF.…”

“…The matrix A 1 is formed by reducing the size of the system matrix using the following algorithm [22]:…”

Propuesta de modelo de Gestión para redes eléctricas con Generación Distribuida a través de Unidades de Medición Fasorial

“…Para la propuesta de gestión se ha sugerido a nivel de hardware emplear un prototipo portable de PMU a bajo costo y con alta capacidad de información, que permita hacer un seguimiento a los cambios continuos en los flujos de red. En cuanto a nivel de software, se propone trabajar con aplicaciones tipo WAMS (Wide Area Measurement System-Sistemas de medida de área ancha) para la gestión de la red; y finalmente, a nivel de comunicaciones emplear sistemas de protocolo abierto, tanto para medios guiados como no guiados tipo GPRS (General Packet Radio Service), ETHERNET, WIFI, o BPL (Broadband Power Line) sin considerar canales de comunicación dedicados (Pal y Thorp, 2012;Mukhopadhyay y Chawla, 2014).…”

Classification and regression tree‐based adaptive damping control of inter‐area oscillations using wide‐area signals

“…However, for big disturbances, the robustness will appear limited. Polytope‐based damping controller is able to accommodate several different operating points by making constraints satisfy all vertices of the feasible polytope [10–12]. However, in active power system, the number of operating points is undoubtedly more than that of vertices.…”