%0 Journal Article
%T Load Frequency Control of Small Hydropower Plants Using One-Input Fuzzy PI Controller with Linear and Non-Linear Plant Model
%A Derek Ajesam Asoh
%A Edwin Nyuysever Mbinkar
%A Albert Nouck Moutlen
%J Smart Grid and Renewable Energy
%P 1-16
%@ 2151-4844
%D 2022
%I Scientific Research Publishing
%R 10.4236/sgre.2022.131001
%X This study presents an intelligent approach for load frequency control
(LFC) of small hydropower plants (SHPs). The approach which is based on fuzzy
logic (FL), takes into account the non-linearity of SHPs¡ªsomething which is not
possible using traditional controllers. Most intelligent methods use two- input fuzzy controllers, but
because such controllers are expensive, there is economic interest in the relatively cheaper single-input controllers. A non- linear control model based
on one-input fuzzy logic PI (FLPI) controller was developed and applied to control
the non-linear SHP. Using MATLAB/Si- mulink SimScape, the SHP was simulated with linear and non-linear plant
models. The performance of the FLPI controller was investigated and compared
with that of the conventional PI/PID controller. Results show that the settling
time for the FLPI controller is about 8 times shorter; while the overshoot is
about 15 times smaller compared to the conventional PI/PID controller.
Therefore, the FLPI controller performs better than the conventional PI/PID
controller not only in meeting the LFC control objective but also in ensuring
increased dynamic stability of SHPs.
%K Small Hydropower Plant
%K Linear and Non-Linear Model
%K Load Frequency Control
%K Non-Linear Control
%K Fuzzy Logic Controller
%K Renewable Energy
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=114960