2019年5月13日，應伟德 官网副院長阮新波教授邀請，新加坡南洋理工大學博士後徐倩雯和美國斯坦福大學博士後汪浩來我院進行交流訪問。當天上午9:30，在南航江甯校區電氣樓學術報告廳，徐倩雯博士和汪浩博士分别做了題為“Decentralized control, stability and reliability of autonomous microgrids”和“Enabling A Smart Grid: Business Model, Machine Learning, and Algorithms”的學術報告。

徐倩雯博士針對微電網的分散控制、穩定性和可靠性展開介紹，首先介紹了一種集成在直流微網系統的混合能源儲能系統及分散能源管理策略，解決了間歇性可再生能源引起的功率不平衡問題。其次，介紹了一種基于增量成本的降階方案，實現了交流、直流和交直流混合微網系統的經濟共享。随後，為了進一步提高系統穩定性，提出了一種綜合非線性擾動觀測器和反推算法的複合非線性技術，并針對微電網可靠性問題，介紹了一種用于微電網可靠性建模和評估的分級可靠性工具。

汪浩博士針對智能電網的業務模型、機器學習和算法展開報告。首先介紹了為了實現智能電網的無縫過渡，已經開發了各種技術，包括需求響應、可再生能源發電和能源儲存。接着，介紹了上述技術給電力系統的運行和規劃帶來的機遇和挑戰。随後，介紹了其團隊在整合新設備和新技術方面提出的框架和算法相關進展。最後，讨論了一種可再生能源優化規劃和運營的合作框架，該框架能夠實現微電網的主動交互，并進一步讨論利用機器學習技術提高需求響應的性能和能源存儲的經濟可行性。

講座過程中，徐倩文博士和汪浩博士到場師生進行了熱烈讨論和深入交流。會後，徐倩雯博士和汪浩博士參觀了多電飛機電氣系統工信部重點實驗室和江蘇省新能源發電與電能變換重點實驗室，就航空電力系統、微電網、高功率密度、高效率逆變器技術和電力電子可靠性研究進行了深入讨論。

徐倩雯博士簡介：Dr. Qianwen Xu received the B.Sc. degree from Tianjin University, China in 2014 and PhD degree from Nanyang Technological University, Singapore in 2018, both in electrical engineering. She has worked as a research associate in Hong Kong Polytechnic University and a postdoc research fellow in Aalborg University.  Currently, she is a Wallenberg-NTU Presidential Postdoc Fellow in Nanyang Technological University in Singapore. She is also awarded the Humboldt Research Fellowship for Postdoctoral Researchers, Chinese Government Award for Outstanding Self-Financed Students Abroad 2018, etc. Her research interests include microgrid control, stability, reliability and optimization. In this area, she has published 11 journal papers in IEEE Transactions and more than 10 IEEE conference papers.

汪浩博士簡介：Hao Wang received his Ph.D. from The Chinese University of Hong Kong and is a Postdoctoral Scholar at Stanford University. His research interests are in the optimization, applied machine learning, and data analytics of Cyber-Physical Systems and Internet of Things. He has published more than 30 peer-reviewed papers in IEEE journals and conferences, and 5 papers in IEEE Transactions on Smart Grid (IF 7.364). He is the author of an ESI Highly Cited Paper, and recipient of the Best Paper Award in IEEE PECON 2016, Best Paper Run-up of IEEE ICC 2017, and recognized by Applied Energy (IF 7.900) and Renewable Energy (IF 4.900) for Outstanding Review Service. He also serves as an Organizing Committee Member for ACM e-Energy 2019, TPC Member for various IEEE conferences, and reviewers for several IEEE Transactions.

圖1 徐倩雯博士作報告

圖2 汪浩博士作報告