Frequency control of the islanded microgrid Using Storage Devices with Help of Wall Optimization Algorithm

Subject Areas : Electrical engineering (electronics, telecommunications, power, control)

hadi mahdavi parchin sofla ¹ , hossein nemati kalkhoran ² , behroz alfi ³ , حسین شایقی ⁴

1 -
2 - Department of Electrical Engineering, ardabil Branch, Islamic Azad University, ardabil, Iran
3 - Electrical Engineering, Faculty of Engineering, Islamic Azad University, Ardabil Branch, Iran
4 - هیات علمی / دانشگاه محقق اردبیلی

Received: 2025-03-10 Accepted : 2025-06-16 Published : 2025-06-20

Keywords: Microgrid frequency control, Wall Optimization Algorithm (WOA), Battery Energy Storage System (BESS).,

Abstract :

Effective control of microgrid islanding requires controlling the energy storage system with other controllable microgrid resources. During island operation, the power balance between production and demand is not instantaneous. As a result, the microgrid frequency will fluctuate and may cause the system to shut down unless there is a proper mechanism to balance the power. The energy storage system responds in milliseconds. It is clear that the energy storage system must play an important role in maintaining frequency stability during islanding operation. Microgrids have been considered as a model for the future power system. They can combine multiple renewable energy sources and provide highly reliable electricity. Power electronics in distributed generation sources of microgrids can increase their ability to cope with disturbances and uncertainties. Recently, it has been shown that microgrids can improve their performance by using battery energy storage systems. The storage system acts as an energy producer for renewable sources and can compensate for short-term changes in the output power of renewable energy sources. Because storage devices can perform fast active power compensation, they can be used to improve the performance of load frequency control. The tested microgrid includes: distributed generation units of diesel generator, photovoltaic, and fuel cell with electrolyzer and wind turbine, and distributed energy storage units of flywheel and battery. In this paper, the frequency control of microgrid using storage devices is studied using the Wall optimization algorithm. The obtained results show that the objective function using the proposed controller is very desirable.

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