General Framework for Intentional Islanding to Enhance Distribution System Performance

Abstract

Due to the increase of load demand, the utility tends to utilize DG technology in recent years. The intentional islanding is an appropriate approach to enhance system performance such as reliability and operational flexibility. This research provides a new paradigm for intentional islanding to maximize the efficiency of the power system. The methodology is based on an advanced load shedding algorithm to achieve a load generation balance and control strategy to ensure a smooth transition from normal mode to island mode with high load power quality. Moreover, it is suggested to assess the small-signal stability of new islands to evaluate their performance and give priority among different alternatives. IEEE 33-bus system is taken as a case study to ensure the effectiveness of the introduced methodology. The analysis is performed for a case study with optimal DG locations and sizes. NEPLAN software is used for dynamics and small-signal stability investigations.

Keywords:

• distribution generation
• intentional islanding
• load shedding
• power system reliability
• power system stability
• small signal stability
• smart micro-grid

Additional information

Notes on contributors

Ahmed M. Elkholy

Ahmed M. Elkholy was born in El- Beheira, Egypt. He received the B.Sc., M.Sc. degrees in electrical power and machines engineering from the Tanta University, Egypt in 2014 and 2019, respectively. He is assistant Lecturer in Faculty of Engineering, Tanta University, Egypt. His research topics are power system automation, power system stability, power system control, and smart grid.

Hossam A. Abd el-Ghany

Hossam A. Abd el-Ghany was born in El- Beheira, Egypt. He received the B.Sc., M.Sc and Ph.D. degrees in electrical power and machines engineering from the Tanta University, Egypt in 2004, 2008 and 2015, respectively. He is assistant professor in Faculty of Engineering, Tanta University, Egypt. His research topics are allocation of DG, power system protection, fault location, and smart grid.

Ahmed M. Azmy

Ahmed M. Azmy was born in El-Menoufya, Egypt. He received the B.Sc. and M.Sc. degrees in electrical engineering from the El-Menoufya University, Egypt in 1991 and 1996, respectively. He received the Ph.D. degree in electrical engineering from the university Duisburg-Essen, Germany in 2005. He was the head of department of Electrical Power and Machines Engineering- Tanta University, director of the quality assurance unit and executive director of the continuous improvement and qualification for accreditation program. He was also the Vice Dean for Community Service and Environment Development. Currently, he is the director of the automated library project in Tanta University and again the head of department of Electrical Power and Machines Engineering- Tanta University. Dr. Azmy has been awarded Tanta University Incentive Awards (2010) and Prizes for international publishing from 2010 till 2020. His research topics are directed to the intelligent techniques, dynamic simulation, smart grids, distributed generating units and renewable energy resources.