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Over the past few decades, there has been an increasing use of induction generator particularly in wind power applications. Induction generator needs reactive power for its excitation. In the case of stand alone operation this power can be provided by a capacitor bank connected to its terminals. In this mode of operation, the performances of the induction generator are unknown and have to be computed...
This paper proposed switched fractional order controller (SFOC) for grid connected Wind Energy Conversion System. The SFOC consists of conventional PI controller, fractional order IP controller and decision maker. The SFOC controller is applied to control PMSG connected to the grid. The proposed control aims to extract maximum power under fluctuating wind speed. SFOC controller designed to solve the...
In this paper, the problem of echo cancellation in long acoustic impulse responses (AIRs) is highlighted. Three of the mostly-used recent NLMS-based sparse adaptive filtering algorithms are presented; and their performances in the context of acoustic echo cancellation (AEC) are studied and compared. The algorithms of interest include the improved proportionate normalized least mean square (IPNLMS),...
In this paper, a predictive direct power control (P-DPC) strategy for a three level NPC rectifier under ideal grid voltage is proposed, discussed and applied. With the proposed P-DPC strategy, the control targets are the active power, the reactive power and the neutral potential voltage; neither hysteresis comparators nor switching table are needed; sinusoidal input current with low total harmonic...
The paper addresses the boundary control of a linear parabolic equation. The objective consists in controlling a given punctual output. The formulated control problem is characterized by an infinite characteristic index making the controller design a challenging task. Hence, to overcome this difficultly and design a state feedback, in the framework of geometric control, an equivalent distributed model,...
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