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Three-phase voltage source pulsewidth-modulated (PWM) rectifiers (VSRs) have received great attentions in industrial applications. Recently, some attempt has been made to study the flexible dc-bus voltage regulation problem under dynamic load of three-phase VSRs by switched control. Several PI controllers are designed for different load resistance range while only one PI controller is implemented...
In this paper, we study a switching signal estimation problem for continuous time switched linear control systems with measurement noise. Inspired by the work of [8], we first propose a generalized minimum distance criterion to estimate the active mode of the plant with inputs. Then we propose an implementable on-line robust switching signal estimation algorithm to detect the switching time with guaranteed...
In contrast to classical observers operating synchronously with the plant, this paper proposes a state estimation algorithm that executes Luenberger observers back-and-forth in time using the stored inputs and output signals. One benefit of this technique is to get rapid convergence of state estimation without relying on high injection gain, so that the amplification of measurement noise is much relieved...
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