2022Year4month20Three o'clock in the afternoon，Sponsored by the Academic Science and Technology Innovation Center of the Graduate Student Association of the School of Electrical Engineering with the theme of "Sharing Scientific Research Experience，Enlightening scientific research wisdom，Spread new academic ideas，The theme of "Transmitting positive academic energy"26The "Jingweiyun" Postgraduate Academic Thought Forum was successfully held through the Tencent Conference Online Platform。The title of this forum is "Academic Planning and Discussion"，The guest speaker is Associate Researcher Mou Qianying from the School of Electrical Engineering, Shandong University，Song Sili, deputy secretary of the Party Committee of the School of Electrical Engineering, attended the forum and delivered a speech。This forum is hosted by the School of Electrical Engineering2021-level master's student, presided over the meeting.
Mou Qianying’s sharing includes two parts: “academic research” and “academic planning”。In the "Academic Research" section，Mou Qianying explained her research direction in detail to the students - large-scale time-delay power system stability analysis and wide-area damping control based on spectral discretization。Mou Qianying mentioned，Low-frequency oscillation between regional power grids has become a bottleneck restricting the transmission of clean energy，The existing local control using local signals as feedback cannot reflect and suppress inter-regional low-frequency oscillations，Wide-area damping control using remote synchronization signals as feedback can ensure good controllability and observability of low-frequency oscillations between regions，But this method will introduce hundreds of milliseconds of communication lag，It may be longer under abnormal circumstances，This makes the communication system a power system with time-delay cyber-physical fusion。In analysis of time-delay power system oscillations，Most effective、The most direct research method is eigenvalue analysis based on the system state matrix，For traditional research methods in frequency domain modeling of time-delay systems、Efficient calculation of time-delay eigenvalues、Problems in damping control of interval low-frequency oscillation，The core idea of Mou Qianying’s research is partial spectrum discretization，Specific content includes high-precision partial spectrum discretization modeling of time-delay power systems、Efficiently obtain key characteristic values of large-scale time-delay power systems、And wide-area damping control of large-scale time-delay power systems。In the Academic Planning section，Mou Qianying combines her own experience，On graduate career planning、Communicate with classmates on issues such as scientific research and thesis writing，And shared his own experience based on his PhD study experience。Mou Qianying talked about，We must clarify our life plans，Don’t follow others’ opinions；Don’t compare blindly，Don’t let other people’s anxiety affect your emotions；If you have any questions, please ask the teacher、Listen more to my senior brother、Sister’s experience、Communicate more with others。The last forum，Mou Qianying borrowed Qian Xuesen’s words to express her best wishes to the students: “I hope everyone will be a person with a sword in his hand”。
In the Q&A session，Positive questions for students，Mou Qianying answers one by one。A classmate asked，I finally thought of an innovative point，But found that others had already done it ten years ago，What to do in this situation。Mou Qianying’s answer，In daily scientific research，We should communicate more with others，Acquire cutting-edge information in your own research direction during the communication process，Avoid wasted effort。Mou Qianying also mentioned，Most current research has certain limitations，Even if it is a topic that others have already done，If you dig deeper，You can still find areas that can be improved。Some students asked how to get started in a new field，Mou Qianying shared her experience based on her own experience: starting from the cutting-edge knowledge in this field，Supplement and improve basic knowledge in the process of replicating other people’s achievements。
The last forum，Song Sili briefly summarized and delivered a speech on this forum，Song Sili said that he has always been very concerned about the holding of the "Jingwei Yun" academic forum，I also expressed my gratitude to the students of the Academic Science and Technology Innovation Center for their hard work。Song Sili mentioned，Associate Researcher Mou Qianying is doing scientific research、Sharing career planning is a good experience reference for students，The "Jingwei Yun" academic forum invited relatively young teachers this time，Compared to older teachers，Mou Qianying’s growth process has a stronger role model effect for her classmates as a “people around her”。
Speaker’s introduction:
Mou Qianying: Associate Researcher at Shandong University。The main research direction is stability analysis and control of large-scale time-delay power systems、Stability analysis and control of flexible DC transmission system、Synchronization stability analysis and control of new power systems, etc.。PostedSCI/EIJournal Article10More articles, includingIEEE Transactions on Power SystemsTop issue paper7Article. Authorized Chinese invention patent7item, software copyright2item,submitTCPApply for one item. Won the second prize of Shandong Province Science and Technology Award.
