Application of Variable Domain Hybrid FFOPID Controller and Dynamic Data Reconciliation Filtering Technology in Islanded Microgrid

In recent years, the superior performance of fractional order proportional-integral-derivative (FOPID) controller compared with traditional integer-order proportional-integral-derivative (PID) controller makes it widely used. In this paper, a variable domain hybrid fuzzy FOPID (FFOPID) controller is proposed and used in the frequency control of islanded microgrid, in order to minimize the frequency fluctuation of island microgrid and consider the influence of measurement noise on the feedback signal. The control performance of the controller is affected, and then the frequency fluctuation of the islanded microgrid increases. Therefore, dynamic data reconciliation (DDR) filtering technology is introduced and used to reduce the impact of measurement noise on the isolated island microgrid. Simulation results demonstrate the effectiveness of DDR filtering technology in the islanded microgrid system and the superior performance of variable domain hybrid FFOPID controller.