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

机译:LFC和中小企业优化协调控制,提高考虑高可再生能源渗透的真实多源电力系统的频率稳定性

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摘要

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.
机译:随着可再生能源系统中的可再生能源(RESS)迅速增长,对诸如的电力系统的几个干扰影响;缺乏系统惯性,从而用ress的ress和频率/电压波动的同步发电机替换为restent的间歇性。因此,现代电力系统比传统动力系统更容易对系统不稳定性的影响。因此,在本研究中,已经集成了超导磁能存储(即,辅助载荷频率控制(LFC))的新应用已经与埃及电力系统的频率稳定性增强的二次频率控制(即,LFC)集成了(eps)由于高芦es渗透率。在哪里,协调控制策略基于PI控制器,该PI控制器由粒子群优化(PSO)算法最佳地设计,以最大限度地减少EPS的频率偏差。 EPS包括具有固有的非线性的传统发电单元(即,非再加热,再加热和液压发电厂),以及RES(即风和太阳能)。系统建模和仿真结果是使用MATLAB / Simulink软件进行的。仿真结果揭示了拟议的协调控制策略的稳健性,以保护具有高渗透ress的EPS系统稳定性的不同突发事件。

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