Undergraduate and graduate students belonging to the Smart Power System Research Lab - Development of a new type power flow calculation program

Ranked 1st out of 19 participating teams nationwide

[March 31, 2023]

<Undergraduate and graduate researchers from Smart Power System Research Lab of YU Department of Electrical Engineering>

Students of YU Department of Electrical Engineering won first place in “13th Electric Power Industry Software Contest.”

The contest was held by Power Technology Division of Korean Electrical Society for power system analysis and application software program development and for the development of power industry-related software and advances into overseas markets.

 In the 13th Contest held last year, LEE Yoon-seon (graduate school), NAM Jeong-hwan, YOO Yeon-soo, CHOI Won-il, and HWANGBO Jeong-min (undergraduate) from YU Department of Electrical Engineering, belonging to Smart Power System Research Lab (advisor: Professor LEE Sang-bong) of YU Department of Electrical Engineering, won the gold prize by placing first among 19 participating teams nationwide.

Their work is AC/DC hybrid power flow calculation using (Newton-Raphson & SQP (Sequential Quadratic Programming). Power flow calculation program is used to show in what state the active power and reactive power generated by the generator flow into the power system and what distribution the voltage or current represents at each point in the power system at this time. Especially, in this contest, power flow analysis of AC/DC hybrid system (Integrated AC/DC system) was asked.

 The team of YU Department of Electrical Engineering programmed two calculation methods, i.e. Newton-Raphson & SQP (Sequential Quadratic Programming, for power flow calculation of AC/DC hybrid system. Also, the team compared commercial AC systems with an integrated system for higher suitability.

 LEE Yoon-seon (graduate school master's course) said, “Power loss may be reduced with economic and efficient operation of power system and Efficient operation of AC/DC hybrid system is possible with application of renewable energy sources. As the result, it is expected to be the foundation of industrial development due to increased available power as well as reduced electric charge.”

 Smart Power System Research Lab of YU Department of Electrical Engineering intends to improve system analysis method by modeling renewable energy sources and DC equipment and to conduct research on development of economic efficiency evaluation models in consideration of equipment costs and line loss in case of change to an integrated system.