Naslov
Optimization of a Hedge-Algebra-Based Speed Controller in a Stand-Alone WECS

Autori
Vukadinović, Dinko ; Bašić, Mateo ; Nguyen, Cat Ho ; Nguyen, Tien Duy ; Vu, Nhu Lan ; Bubalo, Matija

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Skup
5th International Conference on Smart and Sustainable Technologies (SpliTech)

Mjesto i datum
Bol, Hrvatska, 23.09.2020. - 26.09.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
self-excited induction generator ; hedge-algebra controller ; optimization ; genetic algorithm

Sažetak
This paper deals with a variable-speed wind energy conversion system (WECS), which is designed for dc load supply and battery charging in stand-alone applications.The PI speed controller, which is typically used in vector control systems with a self-excited induction generator (SEIG), is here replaced with a hedge-algebra controller (HAC). With this type of controller, it is possible to achieve a faster response and reduced overshoot/undershoot in the wind turbine (WT) speed in comparison with the PI controller. Fuzziness parameters and the linguistic rule base of the HAC are obtained by applying a genetic-algorithm-based optimization, which implies minimization of a predefined performance index. In this paper, the integral absolute error of the SEIG rotor speed is selected as the performance index, with the maximum overshoot/undershoot in the rotor speed during transients limited to 5%. The HAC is here for the first time implemented as the speed controller of the WT-driven SEIG. Simulation results show fast rotor speed responses obtained with the optimized HAC, which are superior to the PI controller responses.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

Napomena
Ovaj je rad financirala Hrvatska zaklada za
znanost projektom (IP-2016-06-3319)

POVEZANOST RADA