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| 1 | Application of thyristor controlled phase shifting transformer excitation impedance switching control to suppress short-circuit fault current level显示文摘Short-circuit fault current suppression is a very important issue in modern large-interconnected power networks. Conventional short-circuit current limiters, such as superconducting fault current limiters, have to increase additional equipment investments. Fast power electronics controlled flexible AC transmission system(FACTS)devices have opened a new way for suppressing the fault current levels, while maintaining their normal functionalities for steady-state and transient power system operation and control. Thyristor controlled phase shifting transformer(TCPST) is a beneficial FACTS device in modern power systems, which is capable of regulating regional powerflow. The mathematical model for TCPST under different operation modes is firstly investigated in this study. Intuitively, the phase shifting angle control can adjust the equivalent impedance of TCPST, but the effect has been demonstrated to be weak. Therefore, a novel transformer excitation impedance switching(EIS) control method, is proposed for fault current suppressing, according to the impedance characteristics of TCPST. Simulation results on IEEE 14-bus system have shown considerable current limiting characteristic of the EIS control under various fault types. Also, analysis of the timing requirement during fault interruption, overvoltage phenomenon, and ancillary mechanical support issues during EIS control is discussed,so as to implement the proposed EIS control properly for fast fault current suppression. | Jun LIU Xudong HAO Xu WANG Yefu CHEN Wanliang FANG Shuanbao NIU | 2018 | Journal of Modern Power Systems and Clean Energy2018，6，4： | 14 |
| 2 | Performance and emission characteristics of a spark-ignition(SI)hydrogen-enriched compressed natural gas(HCNG)engine under various operating condition including idle conditions显示文摘 | Ma Fanhua Ding Shangfen Wang Yefu | 2009 | Energy&Fuels2009，23，6： | 1 |
| 3 | Real-time TaqMan polymerase chain reaction assays for quantitative detection and differentiation of Ureaplasma urealyticum and Ureaplasma parvum 显示文摘 | Xuan Cao Yefu Wang Xingwen Hu | 2007 | Diagnostic Microbiology and Infectious Disease2007，57，4： | 1 |
| 4 | Coordinating power control and performance management for virtualized server clusters 显示文摘 | Wang Xiaorui Wang Yefu | 2011 | IEEE Transactions on Parallel and Distributed Systems2011，22，2： | 1 |
| 5 | Making the waste ores useful显示文摘 | Gan Yefu | 1997 | Environmental Protection in Mines(in Chinese)1997，，4： | 1 |
| 6 | Distributionally Robust Optimal Reactive Power Dispatch with Wasserstein Distance in Active Distribution Network显示文摘The uncertainties from renewable energy sources(RESs)will not only introduce significant influences to active power dispatch,but also bring great challenges to the analysis of optimal reactive power dispatch(ORPD).To address the influence of high penetration of RES integrated into active distribution networks,a distributionally robust chance constraint(DRCC)-based ORPD model considering discrete reactive power compensators is proposed in this paper.The proposed ORPD model combines a second-order cone programming(SOCP)-based model at the nominal operation mode and a linear power flow(LPF)model to reflect the system response under certainties.Then,a distributionally robust optimization(WDRO)method with Wasserstein distance is utilized to solve the proposed DRCC-based ORPD model.The WDRO method is data-driven due to the reason that the ambiguity set is constructed by the available historical data without any assumption on the specific probability distribution of the uncertainties.And the more data is available,the smaller the ambiguity would be.Numerical results on IEEE 30-bus and 123-bus systems and comparisons with the other three-benchmark approaches demonstrate the accuracy and effectiveness of the proposed model and method. | Jun Liu Yefu Chen Chao Duan Jiang Lin Jia Lyu | 2020 | Journal of Modern Power Systems and Clean Energy2020，8，3： | 1 |
| 7 | Rapid and simultaneous detection of Ureaplasma parvum and Chlamydia trachomatis antibodies based on visual protein microarray using gold nanoparticles and silver enhancement显示文摘 | Jingfeng Tang Zhenghui Xu Li Zhou Hong Qin Yefu Wang Hanhua Wang | 2010 | Diagnostic Microbiology & Infectious Disease2010，，2： | 1 |
| 8 | Visual Gene Diagnosis of HBV and HCV Based on Nanoparticle Probe Amplification and Silver Staining Enhancement显示文摘 | Wang Yefu Pang Daiwen Zhang Zhiling | 2003 | Journal Medical Virology2003，，70： | 1 |
| 9 | Preparation of a visual protein chip for detection of IgG against Treponema pallidum显示文摘 | WANG Yefu GAO Wenjuan WANG Huaquan | 2005 | Mol Biotechnol2005，31，2： | 1 |
| 10 | Expression of the xylose re- ductase gene( xyll )from Pichia stipitis in Saccharomyces cerevisi- ae 显示文摘 | yefu C zhengxiang W huiying W | 2002 | Food and Fermentation Industries2002，29，6： | 1 |
| 11 | Real-time TaqMan polymerase chain reaction assays for quantitative detection and differentiation of Ureaplasma urealyticum and Ureaplasma parvum显示文摘 | Cao Xuan Wang Yefu Hu Xingwen | 2007 | Diagnostic Microbiology and Infectious Disease2007，57，4： | 1 |
| 12 | Xylose and cellulose fractionation from corncob with threedifferent strategies and separate fermentation of them tobioethanol显示文摘 | CHEN YEFU DONG BOYU QIN WEIJUN | 2010 | Bioresource Technology2010，101，18： | 1 |
| 13 | Performance and emis- sion eharacteristies of a spark-ignition (S1) hydrogen-enriched cmn- pressed natural gas (HCNG) engine under various operating condi- tion including idle conditions 显示文摘 | Ma Fanhua Ding Shangfen Wang Yefu | 2009 | Energy & Fuels2009，23，6： | 1 |
| 14 | Anionic MOF derived Bimetallic Ni_(x)Co_(y)@Nano-porous carbon composites toward strong and efficient electromagnetic wave absorption显示文摘Metal-organic frameworks (MOFs) derived metallic nanoparticles embedded nano-porous carbon (NPC)composites have shown to be promising microwave absorbing materials. Although MOF precursors withdiverse compositions and morphologies have been extensively investigated, anionic MOFs are rarelyexplored for this utility. In addition to the metal sites and ligands on the MOF framework, the guestcounter-cations in the void provide supplementary parameters to tune the capability of microwaveabsorption. Herein, we applied an anionic NixCoy-MOF featuring N-rich ligands and hierarchical porousstructures as a precursor for microwave absorption. The obtained dielectric-magnetic Ni_(x)Co_(y)@NPCcomposites with rich N dopants and multiple hetero-interfaces promote the microwave attenuationcapability through enhanced dipole/interfacial relaxation. The synergistic effects of magnetic loss andconduction loss induced by metallic nanoparticles (NPs) and porous graphitic layers further facilitate themicrowave dissipation. More significantly, impedance matching can be effectively improved by tuningthe Co/Ni amount in the precursors to realize the modulation of electromagnetic parameters. Conse-quently, Ni@NPC exhibits the optimal electromagnetic wave (EMW) absorption with minimum reflectionloss of 66 dB at only 2 mm and broad effective absorption band covering 4.56 GHz at a thin thickness of2.07 mm, making this material promising absorber for EMW elimination. | Fan Zhang Yefu Chen Yujie Ren Qi Zheng Lianjun Wang Wan Jiang | 2022 | Journal of Materiomics2022，8，4： | 0 |
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