Prof. Minxiao Han
Institute of Flexible Electric Power Technology, North China Electric Power University, Beijing, China
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Academic Career Length
12Years (2015-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
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Journal Article
This paper presents a microgrid stability controller (MSC) in order to provide existing distributed generation units (DGs) the additional functionality of working in islanding mode without changing their control strategies in grid-connected mode and to enhance the stability of the microgrid. Microgrid operating characteristics and mathematical models of the MSC indicate that the system is inherently nonlinear and time-variable. Therefore, this paper proposes an adaptive robust total sliding-mode control (ARTSMC) system for the MSC. It is proved that the ARTSMC system is insensitive to parametric uncertainties and external disturbances. The MSC provides fast dynamic response and robustness to the microgrid. When the system is operating in grid-connected mode, it is able to improve the controllability of the exchanged power between the microgrid and the utility grid, while smoothing the DGs’ output power. When the microgrid is operating in islanded mode, it provides voltage and frequency support, while guaranteeing seamless transition between the two operation modes. Simulation and experimental results show the effectiveness of the proposed approach.
Journal Article
GBGirmaw Teshager Bitew
Girmaw Teshager BitewMinxiao Han
Girmaw Teshager BitewPSPatrobers Simiyu
Patrobers SimiyuHarnessing wind energy is the most rapidly growing amongst renewable energy sources. However, because of its intermittency in nature, wind power results in unfavorable influences on power system control, operation and stability. The voltage sag and flicker and grid frequency fluctuation are significant in this regard. To minimize the effect of wind power fluctuations and other contingencies on the grid frequency and AC-bus voltage, this paper presents a droop-fed vector control strategy based variable speed pumped storage (VSPS) system comprising the doubly fed induction machine. Modelling of the system is undertaken based on a phasor model technique. The case study is made by considering the droop-controlled VSPS plant in a grid containing conventional synchronous machines for hydropower and thermal power plants and an induction machine wind farm. The performance is validated and analyzed using a MATLAB/Simulink platform. The proposed droop-fed control model is compared with the conventional control strategy (without being droop-fed) and tested to wind power fluctuations, start-up transients, load variations and three-phase fault. The results show that the droop-fed vector control strategy of the VSPS plant achieves better dynamic and steady state controlling responses for grid frequency and AC-bus voltage in the power system than the conventional vector control scheme during wind power fluctuations and contingencies.
About Me
Prof. Minxiao Han, Director of Institute of Flexible Electric Power Technology in North China Electric Power University (NCEPU). He studied at Xi'an Jiaotong University, where he earned a bachelor's degree in electrical engineering, and later pursued his master's degree in electrical engineering at North China Electric Power University. He was a joint Ph.D student with NCEPU and Queen’s University of Belfast, U.K., and a post-doctorial researcher at Kobe University, Japan. He is an IET Fellow and Vice-Chairman of IEEE PES AC/DC system China branch committee. He has been the leader in projects consigned by National Nature Science Foundation of China, National Educational Ministry, and enterprises. He has four published books and more than 100 refereed publications in journals and conferences He holds more than twenty patents guaranteed from both domestic and international organization. He has received over ten awards from both the government and enterprises. His research interests are the applications of power electronics in power system including renewable generation and grid integration, HVDC and FACTS, power quality analysis and control. He is active in the industrial standards development and research task force working groups organized by IET, IEEE, IEC and CIGRE. He is the member of the editorial board of a few journals relating with electrical engineering.
Representative publication:
Minxiao Han; Aniruddha. M. Gole, Modeling and Simulation of HVDC transmission