A Design of an Improved Anti-Windup Control Using a PI Controller Based on a Pole Placement Method

Sakai, Kyohei; Ishida, Yoshiteru

doi:10.5013/ijssst.a.17.34.01

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…When the time trends to zero, the first item of the molecule will be zero. Consequently, according to the automatic control theory, the settling time t se of this second-order system can be approximated in (14) for ±5% error bandwidth [39,64,66]. Then, the parameters k pe and k ie are deduced in (15) subsequently [63].…”

Section: Current Loopmentioning

confidence: 99%

Fractional-Order PI Control of DFIG-Based Tidal Stream Turbine

Chen

Xie

Chen

et al. 2020

JMSE

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This study mainly investigates the current and speed control strategies of a doubly-fed induction generator (DFIG), which is applied to a tidal stream turbine (TST). Indeed, DFIG using integer-order PI (IOPI) controller has been widely proposed in the applications with a similar system, especially in wind energy conversion system (WECS). However, these conventional controllers cannot deal with the problems caused by the parameter variations satisfactorily under complex and harsh operation conditions, and may even deteriorate the performance. As a result, a fractional-order PI (FOPI) controller is considered to improve the efficiency and performance of DFIG-based TST in this paper. The FOPI controller, developed from the traditional IOPI controller and the fractional calculus theory, has a lot of prominent merits in many aspects, such as robustness, stability, and dynamic performance. In this paper, the proposed control strategies are embedded into the whole TST model which contains the tidal stream turbine, and the generator. The obtained simulation results demonstrate the prominent effectiveness and advantages of the proposed strategies compared with the conventional IOPI controller in terms of overshoot, static error, adjustment time, and robustness. It implies that FOPI controller could be a good candidate in TST applications.

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