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This paper shows a new approximated model-based sliding mode controller (SMC) design for continuous-time systems with multiple time delays in states, inputs and outputs. The synthesis design procedure is composed of two steps. At the first step, based on the unit-step response data of the afore-mentioned system, an approximated continuous-time state-space model and its transfer function are determined...
Phasor measurement is an essential component of protection relays and phasor measurement units. Phasor measurement as performed by the Fourier Transform is adversely affected by the decaying DC offset which occurs following a fault. Hence an efficient mathematical pre-processor is proposed to remove this offset in a half cycle plus an additional sample. Following this it is possible to use a new phasor...
This paper presents a wide-area damping controller (WADC) based on networked predictive control (NPC), of which the main purpose is to eliminate the impact of the communication delays of the wide-area signals from the wide-area measurement system (WAMS). The proposed WADC incorporates a generalized predictive control (GPC) to generate the optimized future control sequences and a network delay compensator...
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