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SHSID Students Gave a Speech at the 2020 IMMC Greater China Summit

August 27, 2020

The Sixth International Mathematical Modeling Challenge Greater China Summit Summer Online Workshop was held from August 15 to August 17, 2020. Four SHSID students of Class of 2021, Alex Shi, Andrew Cheng, Michelle Ding, and Stanley Hong, were invited to present the award-winning paper on the Problem C of the Greater China Regional Competition. Problem C, titled "Power Grid Frequency Response", focused on how to set a reasonable threshold of the frequency deviation and the period of monitoring the grid frequency by the electric equipment so that users could have a good experience (such as body comfort), and the power grid could have good frequency adjustment effect, maintaining the stability of grid frequency.

As the only reporting team of Problem C, SHSID team identified the main difficulty point of the problem, simplified the abstract index of user experience, and made reasonable and moderate assumptions. When discussing the relationship between variables, the team discussed the positive or negative correlation between variables from the actual situation so that the proposed exponential model was close to the actual level. For the conflict between user experience and frequency adjustment effect, the team made reasonable multi-objective optimization. In addition, in the sub-problem of user advice, they used the idea of classification discussion to put forward different suggestions to users with different demands for electricity. The whole report was clear and fluent, and all the team members illustrated tacit understanding and teamwork. Designer of Problem C, Professor Canbing Li from the Department of Electrical Engineering of Shanghai Jiao Tong University gave high praise to our team.

International Mathematical Modeling Challenge (IMMC) fully embodies not only the intersection of mathematics and science, technology and engineering, which is the core of STEM education, but also the combination of mathematics with social and real life applications. Through this competition, students can make both perceptual and rational analyses of problems in life. The award-winning team has demonstrated excellence in academic research, flexibility, presentation, analysis, evaluation, and cooperation. After 2017, SHSID students once again stepped onto the podium of the Greater China Summit, showing their academic talent and vitality to the world beyond campus.

(Written by Mingxin Zhang Pictures by Mingxin Zhang)