Zhang Gang，2018 doctoral candidate from School of Electrical Engineering, Shandong University，Member of Low Inertia Power System Control Research Group，Study under Associate Professor Zhang Feng。During my PhD, I focused on the problem that distribution networks are easily damaged and cause heavy losses under extreme events，Proposed a pre-accident distribution network planning model，And distribution network rapid recovery model after accident，Improved the robustness and recoverability of the distribution network in response to extreme events。As the first author in "IEEE Transactions on Smart Grid"、6 papers published in SCI/EI journals such as "Chinese Journal of Electrical Engineering"，SCI cumulative impact factor 33。Won the President’s Award of Shandong University、Graduate Academic Star Award、National Scholarship、Excellent graduate student model、Advanced individuals in innovation and entrepreneurship、Baichuang Excellent Project and other honors。
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Zhang Gang independently undertook the Jiangsu Electric Power Research Institute project "Research on Residual Magnetization Assessment and Demagnetization Technology of UHV Transformers" when he first entered the first year of his master's degree，On the one hand, you have to bear the huge course pressure of a master's degree，On the one hand, we must also promote the progress of the project，Very stressful。In the first few months, we were also in a transition period from passive learning as an undergraduate to active exploration as a graduate student，Low learning efficiency，Project progress is slow，Difficulty in balancing courses and projects。“Thank you Teacher Zhang Feng for your education and enlightenment，Help me get through this crucial period of confusion”，Zhang Gang said。He began to strictly plan his course study and project research time according to the daily course schedule，4 hours of classes every day，2 hours of preview and review，Read the literature in the remaining time、Summary of the day’s progress，It was under the dual pressure of courses and projects that he quickly entered the rhythm of scientific research。
Also，Zhang Gang mentioned that course study and project research cannot be completely separated。An article on comprehensive energy system power flow calculation published by TSTE, a regional journal, uses the fixed point method for solving nonlinear equations in the graduate course "Numerical Analysis"。In his understanding，Graduate courses study the broad basics of power systems，Studying graduate courses well is to provide support for subsequent research。
Positive attitude to cope with changes
Many juniors and juniors may encounter changing subjects，Especially in terms of doctoral level topics, it may be difficult to fully undertake the master’s level topics。Zhang Gang also encountered the situation of changing topics many times due to various reasons，First-year master’s degree student doing research on transformer residual magnetism，Second-year master's degree student doing integrated energy system power flow calculation and economic dispatch，And Doctor One、As a sophomore, I also do flexible distribution network planning and power grid frequency regulation。From equipment research to system research，From power grid research to gas grid、Heat network research，Planning from Steady State、Scheduling to transient frequency modulation... although every change of topic is a huge leap，But，Every time the topic changes, he has a deeper understanding of the power grid, the largest man-made system, from a different perspective，Have a deeper understanding of the operating mechanism of the power grid。
Secondly，Zhang Gang believes that when you find a trace of connection between seemingly unrelated directions，That is a breakthrough in the boundaries of knowledge。An article published by Zhang Gang in the first district journal TSG is a study on the collaboration of mobile emergency generators from the perspective of planning-operation-recovery collaboration，Therefore，Every research project in different directions is an accumulation of knowledge，They are all a rare wealth。
Last，Zhang Gang believes that doctoral students not only need to be extremely in-depth in specific research directions，You also need to dabble in other related knowledge，Only this way，This will allow you to be more specific when discussing your research direction、More comprehensive。
10% chance if you work very hard
Zhang Gang’s relevant academic papers are basically published in 2020，Many people think he is very "productive" this year，Some people will also ask him if he has found the secret to scientific research，In fact it’s not the case。He said，Everyone may only see your results this year，I can’t see the accumulation of thousands of documents during your research，I can’t see you suffering from being rejected three times a day by the journal。Zhang Gang’s secret to scientific research is to read more literature，Think more，Exchange ideas with tutors，Not so much scientific research，It is better to say that you are willing to do scientific research，Willing to make great efforts to study a topic，Willing to bear the criticism of peer reviewers upon submission。
Concentrate on accumulation and the flowers will bloom，Don’t only put in one point of effort just because the chance is only 10%，Because often only with great efforts will there be a 10% chance。
Message from the instructor:
Learning is never easy，Efforts are never neglected，Persistence will never be let down，As a doctoral student，Should be a highly self-disciplined and autonomous person，Stupid learning leads to hard work，May as well be familiar with it。
——Zhang Feng
