Sijia Geng

Emails:sgeng@jhu.edu (primary)sgeng@mit.edusgeng@umich.edu

I am no longer maintaining this website. Please check my new website HERE.

💡 I'm seeking self-motivated students at all levels who are passionate about research and have strong mathematical skills to join my group. Click HERE for more information.

I am an Assistant Professor in the Department of Electrical and Computer Engineering at Johns Hopkins University and a Core Faculty with the Ralph O'Connor Sustainable Energy Institute (ROSEI). I direct the Power and Energy Network Systems Analysis (PENSA) Laboratory at Johns Hopkins.

I completed my Ph.D. in Electrical & Computer Engineering from the University of Michigan-Ann Arbor in January 2022, advised by Prof. Ian A. Hiskens, and obtained two M.S. degrees in Mathematics and ECE from the same university, both in 2021. In 2022, I worked as a Postdoctoral Associate at the MIT Laboratory for Information and Decision Systems (LIDS), collaborating with Dr. Audun Botterud. In 2018, I interned at the Pacific Northwest National Laboratory (PNNL).

My research interests include:

Dynamic analysis of inverter-based power systems.
Control theory and system theory.
Nonlinear and hybrid systems.
Electrified transportation and multi-energy systems.

My research integrates methodologies from system and control theory, mathematical analysis, and optimization to address pressing and fundamental challenges in complex networked energy systems. I develop theory and computational tools to enable the renewable energy transition and achieve an intelligent, resilient, and sustainable next-generation energy system.

I am the recipient of the Best Paper Award for the 2022 MIT/Harvard Applied Energy Symposium (MIT, Aug 2022, one of the top 6 out of 150 contributions), Rising Stars in EECS, (MIT, Aug 2021), Barbour Scholarship (Umich, Mar 2021, among the oldest and most prestigious awards at Umich), Honorable Mention of Richard F. and Eleanor A. Towner Prize for Outstanding Ph.D. Research (Umich, Feb 2021), Finalist of Marian Sarah Parker Prize-Graduate (Umich, Feb 2021), Richard F. and Eleanor A. Towner Prize for Distinguished Academic Achievement (Umich, Feb 2018), and Gerald and Esther Forrest Graduate Student Fellowship (Umich, Sep 2016).

NEWS:

[Oct 2023] A preprint is online on "An integer clustering approach for modeling large-scale EV fleets with guaranteed performance": https://arxiv.org/abs/2310.02208.
[Oct 2023] A preprint is online on "Approximating voltage stability boundary under high variability of renewables using differential geometry": https://arxiv.org/abs/2310.01911.
[May 2023] I presented my research on "Scalable methods for power systems with high-penetration of renewable energy" to the JHU ECE External Advisory Committee.
[April 2023] I'm excited to attend the Joint US-European NSF Workshop in Philadelphia and engage in the discussion on "Flexible electric grid critical infrastructure for resilient society".
[March 2023] I'm glad to attend the "Smart Electric Energy and Transportation Forum" at Columbia University, NYC.
[March 2023] Look forward to seeing everyone at ARPA-E Summit in DC! Stop by Booth 601 to learn more about visionary work at ROSEI and #HopkinsEnergy!
[March 2023] I co-chaired an invited session on “Novel Approaches to Support Energy Systems: Analysis & Learning" for the Annual Conference on Information Sciences and Systems (CISS) which took place at JHU this year. Special thanks to our invited speakers: Deepak Ramasubramanian, Eilyan Bitar, Emiliano Dall'Anese, Killian Wood, Vassilis Kekatos, Hao Zhu, and Baosen Zhang.
[March 2023] I delivered a talk at the JHU ECE Distinguished Lecture Series, on the topic of "New paradigm in the era of low-inertia power systems: Dynamics, control, and stability".
[Jan 2023] I gave an invited talk on "Interoperability in future inverter-dominated power grid: A control perspective" at the ROSEI Summit for Sustainable Energy Research, Johns Hopkins University.
[Jan 2023] I moved to Johns Hopkins University!
[Nov 2022] Our conference paper "Dynamic Performance of Unified Grid-Forming/Following Inverter Control" was presented at the 58th Annual Allerton Conference on Communication, Control, and Computing. It is online now! Accessible at:

https://ieeexplore.ieee.org/document/9929391.

[Nov 2022] I am invited to give a talk at UC San Diego for their Energy Seminar series, jointly hosted by the Mechanical & Aerospace Engineering Dept & Center for Energy Research.
[Oct 2022] Our journal paper "Unified Grid-Forming/Following Inverter Control" is accepted by the IEEE Open Access Journal of Power and Energy! It is available online at:

https://ieeexplore.ieee.org/document/9931676.

[Oct 2022] I am excited to represent Johns Hopkins to attend the ESIG 2022 Fall Technical Workshop and I greatly enjoyed the conversation with industry leaders from around the world.
[Oct 2022] I am invited to give a talk at the Future Energy Systems Center Workshop hosted by MIT Energy Initiative.
[Oct 2022] I will give two talks at the INFORMS annual meeting.
[Sep 2022] I am excited to serve as an invited panelist at the Johns Hopkins University Gupta-Klinsky India Institute 2022 Annual Meeting.
[Aug 2022] Our contribution was selected as the Best Paper Award at the 2022 MIT A+B Applied Energy Symposium (Top 6 out of 150 contributions)!
[Aug 2022] I was invited to give a talk at the California Institute of Technology.
[May 2022] I am thrilled to accept an offer of an Assistant Professor position at Johns Hopkins University and will join the ECE department in January 2023!
[Feb 2022] I joined the MIT Laboratory for Information and Decision Systems as a postdoc!

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