Optimized coordinated control of LFC and SMES to enhance frequency stability of a real multi-source power system considering high renewable energy penetration

Protection and Control of Modern Power Systems

G. Shabib¹  Adel A. Elbaset²  Yasunori Mitani³  Gaber Magdy³ 

[1] Department of Electrical Engineering, Faculty of Energy Engineering, Aswan University;Department of Electrical Engineering, Faculty of Engineering, Minia University;Department of Electrical Engineering, Kyushu Institute of Technology;

关键词: Renewable energy sources (RESs);    Load frequency control (LFC);    Egyptian power system (EPS);    Superconducting magnetic energy storage (SMES);   

DOI  :  10.1186/s41601-018-0112-2

来源: DOAJ

【 摘 要 】

Abstract With rapidly growing of Renewable Energy Sources (RESs) in renewable power systems, several disturbances influence on the power systems such as; lack of system inertia that results from replacing the synchronous generators with RESs and frequency/voltage fluctuations that resulting from the intermittent nature of the RESs. Hence, the modern power systems become more susceptible to the system instability than conventional power systems. Therefore, in this study, a new application of Superconducting Magnetic Energy Storage (SMES) (i.e., auxiliary Load Frequency Control (LFC)) has been integrated with the secondary frequency control (i.e., LFC) for frequency stability enhancement of the Egyptian Power System (EPS) due to high RESs penetration. Where, the coordinated control strategy is based on the PI controller that is optimally designed by the Particle Swarm Optimization (PSO) algorithm to minimize the frequency deviations of the EPS. The EPS includes both conventional generation units (i.e., non-reheat, reheat and hydraulic power plants) with inherent nonlinearities, and RESs (i.e., wind and solar energy). System modelling and simulation results are carried out using Matlab/Simulink® software. The simulation results reveal the robustness of the proposed coordinated control strategy to preserve the system stability of the EPS with high penetration of RESs for different contingencies.

【 授权许可】

Unknown