Regular Article

Modeling smart electrical microgrid with demand response and storage systems for optimal operation in critical conditions

¹ College of Mechanical and Electrical Engineering, Jiaxing Nanhu University, Jiaxing City, Zhejiang Province 314000, PR China
² Beijing Institute of Technology, Zhuhai City, Guangdong Province 519088, PR China
³ College of Information Engineering, Jiaxing Nanhu University, Jiaxing City, Zhejiang Province 314000, PR China
⁴ Energy Systems Department, Ajman University, Ajman, United Arab Emirates

^* Corresponding author: karen6886@163.com

Received: 22 April 2024
Accepted: 8 July 2024

Abstract

This study examines the issue in standard and operational scenarios of microgrids that arise during critical conditions. Initially, the ideal energy storage size and discharge depth are identified for optimal microgrid planning under operating conditions. Subsequently, by utilizing the energy storage system and load response, the microgrid’s vulnerability is reduced and the cost of load shedding is minimized when in critical conditions, leading to the microgrid being disconnected from the main network and operating in island mode. This model aims to analyze how the system performance is influenced by the presence of storage systems and load response programs in a numerical scenario, particularly during severe weather events. In addition, the study examines the role of advanced control algorithms and communication systems in optimizing the operation of the microgrid. By implementing smart grid technologies, the microgrid can better manage its energy resources, anticipate fluctuations in demand, and respond quickly to changing conditions. This proactive approach helps to ensure the stability and reliability of the microgrid, even in the face of unforeseen challenges. Overall, this research contributes valuable insights into the challenges and opportunities facing microgrids in both normal and emergency situations. By identifying the most effective energy storage solutions, load response strategies, renewable energy integration methods, and advanced control systems, the study aims to enhance the resilience, efficiency, and sustainability of microgrid systems in the future. The results of the proposed approach in critical operational mode represent the optimal condition of the electrical microgrid with minimum cost and load shedding considering storage systems and load response programs.