Past Findings and Future Directions of Available Transfer Capability Part One: Static Concepts and Methods

Due to the development of electricity market in a sustainable and competitive way in most countries, investigating the ability to transfer power has increased dramatically. Also, the increasing consumption and the lacking expansion of the transmission network have left most components of the power system within their authorized limits, which reduces the efficiency. Therefore, determining the exact amount of available transfer capability (ATC) is crucial for planning, operating and controlling the power system. There are many ways to calculate the ATC. The algorithms are either fast but not precise or accurate but not fast enough. This paper provides a comprehensive review of the various methods for determining ATC in both static and dynamic methods. First, the concepts and definitions essential to a better understanding of ATC are presented then in two separate parts the, static methods and dynamic methods are examined. These studies show that simultaneously with the development of static methods, dynamic methods have been also developed. This paper is useful both for those who already work in this field and also those willing to enter the field.