scholarly journals Load frequency control of smart isolated power grids with high wind farm penetrations

2020 ◽  
Vol 14 (7) ◽  
pp. 1228-1238
Author(s):  
Reza Kazemi Golkhandan ◽  
Hossein Torkaman ◽  
Mohammad Reza Aghaebrahimi ◽  
Ali Keyhani
Keyword(s):  
Wind Farm ◽  
Frequency Control ◽  
Load Frequency Control ◽  
Power Grids ◽  
High Wind ◽  
Load Frequency

A novel optimal frequency control strategy for an isolated wind–diesel hybrid system with energy storage devices

2016 ◽  
Vol 40 (6) ◽  
pp. 497-517 ◽  
Author(s):  
Nour EL Yakine Kouba ◽  
Mohamed Menaa ◽  
Mourad Hasni ◽  
Mohamed Boudour
Keyword(s):  
Energy Storage ◽  
Electric Vehicles ◽  
Hybrid System ◽  
Control Strategy ◽  
Wind Farm ◽  
Frequency Control ◽  
Load Frequency Control ◽  
Redox Flow Batteries ◽  
Load Frequency ◽  
Wind Farm Integration

This article presents the design of a new effective control strategy to enhance frequency stability of an isolated micro-grid-based wind–diesel hybrid system. The suggested control methodology involves load frequency control coordinated with battery energy storage systems. A recently developed meta-heuristic algorithm called multi-verse optimizer was applied to design an intelligent load frequency control scheme in the aim to handle the frequency fluctuation due to load changes and wind farm integration. The multi-verse optimizer algorithm was used to optimize the proportional–integral–derivative controller parameters for the load frequency control loop. The proposed controller was coordinated with two different kinds of storage system, which are redox flow batteries and electric vehicles. To demonstrate the effectiveness of the proposed control strategy, the simulation was performed under step load changes and then was extended with doubly-fed induction generator wind farm integration. Furthermore, to show the potential of multi-verse optimizer algorithm, a comparative study was done with other approaches available in the literature. In addition, robustness analysis was carried out. The obtained simulation results show that the proposed strategy is a very effective means for providing robust load frequency control controller and to avoid hybrid system instability. Furthermore, the system frequency can be improved using an optimal power management of the stored energy in both redox flow batteries and electric vehicles to compensate the load frequency control capability of the diesel groups, which allow to the possibility of integration of a large penetration of wind farms. In summary, the proposed control strategy may be helpful to identify the needed load frequency control capacity in the presence of dispersed generation’s units.

scholarly journals Application of Cooperative Distributed Predictive Control in Power Grid Frequency Adjustment

2015 ◽  
Vol 37 ◽  
pp. 417
Author(s):  
Hamidreza Iranmanesh ◽  
Ahmad Afshar
Keyword(s):  
Predictive Control ◽  
Smart Grids ◽  
Large Scale ◽  
Control Method ◽  
Frequency Control ◽  
Power Grid ◽  
Load Frequency Control ◽  
Power Grids ◽  
Superior Performance ◽  
Load Frequency

One of the efficient control methods is the model predictive control(MPC) that calculates appropriate system inputs to reduce the difference between the desired and the system predicted output. One of the important applications of this strategy is in power grids for load-frequency control and power balancing. Different architectures of MPC are applied in large scale structures such as power grid. In this paper a feasible cooperation based MPC(FC-MPC) controller has been used as a suited solution to control problem with relatively strict constraints. Also it can be used as one of options for control system of smart grids in future. In this paper, a power grid with 4 control zones has been chosen as a case study. The simulation results indicate the superior performance of the discussed control method in comparison with the traditional control of load- frequency.

scholarly journals Implementation and Assessment of a Decentralized Load Frequency Control: Application to Power Systems with High Wind Energy Penetration

Energies ◽  
2017 ◽  
Vol 10 (2) ◽  
pp. 151 ◽  
Author(s):  
Irene Muñoz-Benavente ◽  
Emilio Gómez-Lázaro ◽  
Tania García-Sánchez ◽  
Antonio Vigueras-Rodríguez ◽  
Angel Molina-García
Keyword(s):  
Power Systems ◽  
Wind Energy ◽  
Frequency Control ◽  
Load Frequency Control ◽  
High Wind ◽  
Load Frequency ◽  
Control Application

scholarly journals A Comparative Study on Load-Frequency Controllers of a Five-Area Interconnected Power System

2019 ◽  
pp. 1019-1025
Author(s):  
Dao Thi Mai Phuong
Keyword(s):  
Power System ◽  
Comparative Study ◽  
Frequency Control ◽  
Load Frequency Control ◽  
Power Grids ◽  
Interconnected Power System ◽  
Load Frequency ◽  
Interconnected Power Grids ◽  
System Frequency ◽  
Tie Line

The crucial objectives of load-frequency control (LFC) to a multi-area interconnected power system are to maintain the system frequency at a nominal value (50 Hz or 60 Hz) and the tie-line power flows at predetermined values. Based on tie-line bias control strategy, conventional regulators, such as I, PI and PID, were initially used for solving the LFC problem. Due to the complexity, nonlinearity and uncertainty of a multi-area power system in practice, the conventional regulators may not obtain the control performances good enough to bring the network back to the steady state as soon as possible. Meanwhile, intelligent controllers, such as fuzzy logic (FL)-based controllers, are able to completely replace these conventional counterparts. The superiority of the FL-based LFC controllers over the conventional ones for a typical case study of five-area interconnected power grids is validated in this paper through numerical simulations implemented in Matlab/Simulink package. It should be apparent from this comparative study that the LFC controller based on FL technique is a feasible selection in dealing with the LFC problem of a multi-area power network.

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