A Novel Frequency Regulation in Islanded Microgrid using Sliding Mode Control with Disturbance Observers considering Storages and EVs. (January 2023)

• Record Type: Journal Article
• Authors: Ibraheem, Mohamad Issa; Edrisi, Mehdi; Gholipour, Mehdi; Haes Alhelou, Hassan
• Is Part Of: Computers & electrical engineering. Volume 105(2023)
• Publication Date: 2023-01
• Subjects: Disturbance observer -- Integral sliding mode control -- Integral slide mode control with disturbance observer -- Islanded microgrid -- renewable energy sources -- Lyapunov stability -- Secondary frequency regulation; Microgrid MC -- Integral sliding mode control ISMC -- Disturbance observer-based controller DOBC -- Integral sliding mode control with disturbance observer ISMCDO -- Distributed energy resources DER -- Primary control PC -- Secondary control SC -- Proportional–Integral PI -- Proportional–Integral–Derivative PID -- Sliding mode SM -- Sliding mode load frequency control SM-LFC -- Disturbance observer DO -- Photovoltaics PV -- Wind turbine generator WTG -- Fuel cell FC -- Diesel engine generator DEG -- Flywheel energy storage system FESS -- Battery energy storage system BESS; Computer engineering -- Periodicals; Electrical engineering -- Periodicals; Electrical engineering -- Data processing -- Periodicals; Ordinateurs -- Conception et construction -- Périodiques; Électrotechnique -- Périodiques; Électrotechnique -- Informatique -- Périodiques; Computer engineering; Electrical engineering; Electrical engineering -- Data processing; Periodicals; Electronic journals; 621.302854
• DOI: 10.1016/j.compeleceng.2022.108537
• Languages: English
• ISSNs: 0045-7906

Abstract

Abstract: A variation in load on a microgrid (MG) system has a significant impact on the MG's frequency. In addition, wind and photovoltaic power sources are significantly affected by weather fluctuations; thus, the system experiences frequent oscillations. This paper proposes an integral sliding mode control system that incorporates a disturbance observer (ISMCDO) for establishing a power balance and frequency regulation in a MG system. MATLAB/ Simulink is used to compare the results of this method and those of integral sliding mode controller (ISMC) and disturbance observer-based controller (DOBC). In addition, their performance indices are compared as well, where the results can verify the superiority of ISMCDO method in comparison with other techniques. Consequently, Utilizing the ISMCDO controller, the secondary controller performances in the MG system may be improved, which will ensure stability, flexibility, quick response, and maintenance of the load balance when sudden changes in loads and weather conditions occur.