International Journal of Power Electronics and Drive Systems (IJPEDS) Vol. 13, No. 3, September 2022, pp. 1884~1895 ISSN: 2088-8694, DOI: 10.11591/ijpeds.v13.i3.pp1884-1895  1884 Journal homepage: http://ijpeds.iaescore.com Wind energy management of a standalone system operating at maximum power point Hani Albalawi 1,2 , Sherif A. Zaid 1,2 , Yonis M. Buswig 3 , Hassan Wedaa El-Rab 1 , Abderrahim Lakhouit 4 , Muhammed Ayas Arshad 5 1 Department of Electrical Engineering, Faculty of Engineering, University of Tabuk, Tabuk, Saudi Arabia 2 Renewable Energy and Energy Efficiency Centre (REEEC), University of Tabuk, Tabuk, Saudi Arabia 3 Department of Electrical and Electronic Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Samarahan, Malaysia 4 Department of Civil Engineering, Faculty of Engineering, University of Tabuk, Tabruk, Saudi Arabia 5 Sensor Networks and Cellular System Research Centre, University of Tabuk, Tabruk, Saudi Arabia Article Info ABSTRACT Article history: Received Mar 19, 2022 Revised Jun 7, 2022 Accepted Jun 22, 2022 In this paper, the management and control of a standalone wind energy system versus variations of wind speed and load are investigated. The system includes a wind turbine coupled to a variable-speed permanent magnet synchronous generator (PMSG), rectifier, boost converter, power inverter, and an energy storage system (ESS). The ESS is a very important part to achieve system stability and support the maximum power point tracking (MPPT) operation. A simple off-line MPPT algorithm is introduced that can be accomplished using the boost converter. The system dynamic model is derived then the control and energy management algorithms are introduced to improve the system performance. The MATLAB platform has been utilized to simulate the proposed system under different disturbances in the load power and wind speed. The results show perfect management of the system energy, good performance of the DC link voltage, stable load voltage, and load frequency. Keywords: Energy storage Maximum power point Standalone Wind energy This is an open access article under the CC BY-SA license. Corresponding Author: Sherif A. Zaid Department of Electrical Engineering, Faculty of Engineering, University of Tabuk Tabuk 71491, Saudi Arabia Email: shfaraj@ut.edu.sa 1. INTRODUCTION Nowadays, standalone energy generation systems are becoming widespread in islands and rural regions. The reason behind this is the grid is usually not available due to economic issues. Commonly, diesel generators are utilized for electricity production in remote area applications. Though these generators have high reliability, simple starting, and low installation cost, it requires regular maintenance, high running cost, and has bad environmental impacts [1]. Standalone wind systems incorporating an energy storage system provide a good alternative to classical diesel generators. It is environmentally friendly and has no running cost [2]. As wind power is intermittent in nature, it can not supply steady electrical power to loads. To overcome this problem, an energy storage device can be employed in order to store/supply energy in such a way as to compensate for the wind energy variations significantly. Therefore, energy storage systems are essential for the stability and reliability of wind energy system operation [3]-[10]. Also, it supports the transient stability of the system against load and wind fluctuations [11]. Different kinds of energy storage systems have been utilized like batteries, flywheels, superconducting magnetic energy storage (SMES), supercapacitors, hydrogen, thermal, and compressed air energy storage. However, lead-acid batteries are the common energy storage for many applications due to their merits of low cost, wide operating temperature,