Event-triggered finite-time neural control for uncertain nonlinear systems with unknown disturbances and its application in SVC

Abstract

In this article, an event-triggered finite-time neural control strategy is proposed for nonlinear power systems with unknown disturbances and static var compensator (SVC). We first transform the power system with SVC into a three-dimensional uncertain nonlinear system and then extend it to an [Formula: see text]-dimensional uncertain nonlinear system. The disturbance observer is established to estimate external disturbances and the unknown nonlinear terms are approximated by the radial basis function neural networks. Moreover, to avoid the complexity explosion problem in the traditional backstepping method, the command filtering technique is adopted, and the error caused by the command filters is compensated. The adaptive event-triggered finite-time controller ensures that all signals are bounded in finite time and excludes Zeno phenomena. In the end, the simulation for the two-area interconnected power system with SVC is presented to verify the availability and feasibility of the proposed approach.

Event-Triggered Tracking Control for Nonlinear Systems with Mismatched Disturbances: A Non-Recursive Design Approach

“…However, this recursive-based control design may lead to the 'explosion of terms' problem, posing obstacles in their direct engineering application. To avoid the direct differentiation of virtual control laws, event-triggered schemes combined with command filtering techniques are proposed in [17,18]. Moreover, the investigation of event-triggered dynamic surface control strategy can be found in [19].…”