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| 1 | Current Control Strategy of Chain Circuit STATCOM显示文摘在链式静止同步补偿器(static synchronous compen-sator,STATCOM)小信号交流模型的基础上,提出简化的STATCOM电流控制闭环系统;分别对典型Ⅰ型、典型Ⅱ型控制系统的电流调节器进行参数优化及比较,分析表明,对于电流阶跃响应,系统处于线性控制状态时超调量相对百分比不变,处于限幅非线性状态时超调量绝对值不变;采用比例调节器的典型I型系统稳态精度稍差,但动态控制精度较高,适合用于链式STATCOM工程装置;在a-b-c坐标系下仿真表明,应用优化设计的典型Ⅰ型系统控制参数,链式STATCOM输出电流可以快速跟踪参考值变化,具有良好的稳定性和跟踪精度。 | WANG Xuan FU Jian TENG Letian SUN Lijing ZHAO Ruibin WU Shouyuan DENG Zhanfeng | 2012 | 中国电机工程学报2012，32，12： | 15 |
| 2 | Compliance verification and probabilistic analysis of state-wide power quality monitoring data显示文摘This paper introduces the implementation and data analysis associated with a state-wide power quality monitoring and analysis system in China. Corporation specifications on power quality monitors as well as on communication protocols are formulated for data transmission. Big data platform and related technologies are utilized for data storage and computation. Compliance verification analysis and a power quality performance assessment are conducted, and a visualization tool for result presentation is finally presented. | Liu Yang Jiang Peng Tongxun Wang Yaqiong Li Zhanfeng Deng Yingying Liu Meng Tan | 2018 | Global Energy Interconnection2018，1，3： | 7 |
| 3 | The Averaged-value Model of a Flexible Power Electronics Based Substation in Hybrid AC/DC Distribution Systems显示文摘The concept of a flexible power electronics substation(FPES)was first applied in the Zhangbei DC distribution network demonstration project.As a multi-port power electronics transformer(PET)with different AC and DC voltage levels,the FPES has adopted a novel topology integrating modular multilevel converter(MMC)and four-winding medium frequency transformer(FWMFT)based multiport DC-DC converter,which can significantly reduce capacitance in each sub-module(SM)of a MMC and also save space and cost.In this paper,in order to accelerate speed of electromagnetic transient(EMT)simulations of FPES based hybrid AC/DC distribution systems,an averaged-value model(AVM)is proposed for efficient and accurate representation of FPES.Assume that all SM capacitor voltages are perfectly balanced in the MMC,then the MMC behavior can be modeled using controlled voltage sources based on modulation voltages from control systems.In terms of the averaged current transfer characteristics among the windings of the FWMFT,we consider that all multiport DC-DC converters are controlled with the same dynamics,a lumped averaged model using controlled current and voltage sources has been developed for these four-port DC-DC converters connected to the upper or lower arms of the MMC.The presented FPES AVM model has been tested and validated by comparison with a detailed IGBT-based EMT model.Results show that the AVM is significantly more efficient while maintaining its accuracy in an EMT simulation. | Hong Liu Zhanfeng Deng Xialin Li Li Guo Di Huang Shouqiang Fu Xiangyu Chen Chengshan Wang | 2022 | CSEE Journal of Power and Energy Systems2022，8，2： | 2 |
| 4 | Expression Profiles of Six Circulating MicroRNAs Critical to Atherosclerosis in Patients With Subclinical Hypothyroidism: A Clinical Study显示文摘 | Xinhuan Zhang Shanshan Shao Houfa Geng Yong Yu Chenggang Wang Zhanfeng Liu Chunxiao Yu Xiuyun Jiang Yangxin Deng Ling Gao Jiajun Zhao | 2014 | The Journal of Clinical Endocrinology & Metabolism2014，，： | 1 |
| 5 | A Three-phase Integrated Power Electronic Transformer with the Capability of DC Fault Clearance显示文摘This paper presents a three-phase integrated power electronic transformer(PET)topology with the capability of DC fault clearance based on the investigation of PET topology.The proposed PET has three ports of high-voltage AC,high-voltage DC and low-voltage DC,which can achieve the flexible access of distributed energy resources・The power unit of the PET adopts a three-phase integrated topology,and the single-phase fluctuating power in the DC-link capacitor is reduced by a 4-port DC/DC converter,thereby reducing the capacitance of the DC-link capacitor;Meanwhile,the power unit uses the clamp double sub-module(CDSM)to allow for self-clearing of the short-circuit fault on the high-voltage DC side.Finally,this paper verifies the proposed PET through an EMT simulation and experimental prototype. | Yunfei Xu Guangfu Tang Weiguo Li Guoliang Zhao Zhanfeng Deng | 2021 | CSEE Journal of Power and Energy Systems2021，7，4： | 1 |
| 6 | Design and fabrication of bipolar plates for PEM water electrolyser显示文摘Hydrogen energy,whether in generation plants or utilization facilities,plays a decisive role in the mission to achieve net-zero greenhouse gas emissions,all to minimize pollution.The growing demand for clean energy carrier steadily accelerates the development of hydrogen production processes,and therein proton exchange membrane(PEM)water electrolysis is deemed a promising long-term strategy for hydrogen preparation and collection.This review retrospects recent developments and applications of bipolar plates(BPs)as key components in PEM fuel cells and water electrolysers.The main content includes multifaceted challenges in the R&D or fabrication of BPs and potential future trends have also been proposed.Specific details cover the BPs matrix(metallic materials and carbon composites)and the surface coating types(metal and compound coatings,carbon-based coatings,and polymer coatings),as well as the influence of flow field design for mass transport.Long-term development and feasible researches of BPs are prospected.Especially in the following aspects:(1)Structural and functional integration of components,such as material fabrication and flow field geometry optimization using 3D printing technology;(2)Introduction of environment-friendly renewable energy for hydrogen production;(3)Research on hydrogen energy reversible systems;(4)Composition optimization of surface coatings based on computational materials science and(5)systematic design expected to evolve into the next generation of BPs. | Xiejing Luo Chenhao Ren Jie Song Hong Luo Kui Xiao Dawei Zhang Junjie Hao Zhanfeng Deng Chaofang Dong Xiaogang Li | 2023 | Journal of Materials Science & Technology2023，，15： | 0 |
| 7 | U1 snRNP proteins promote proximal alternative polyadenylation sites by directly interacting with 3'end processing core factors显示文摘In eukaryotic cells,both alternative splicing and alternative polyadenylation(APA)play essential roles in the gene regulation network.U1 small ribonucleoprotein particle(U1 snRNP)is a major component of spliceosome,and U1 snRNP complex can suppress proximal APA sites through crosstalking with 3end processing factors.However,here we show that both knockdown and overexpression of SNRPA,SNRPC,SNRNP70,and SNRPD2,the U1 snRNP proteins,promote the usage of proximal APA sites at the transcriptome level.SNRNP70 can drive the phase transition of PABPN1 from droplet to aggregate,which may reduce the repressive effects of PABPN1 on the proximal APA sites.Additionally,SNRNP70 can also promote the proximal APA sites by recruiting CPSF6,suggesting that the function of CPSF6 on APA is related with other RNA-binding proteins and cell context-dependent.Consequently,these results reveal that,on the contrary to U1 snRNP complex,the free proteins of U1 snRNP complex can promote proximal APA sites through the interaction with 3end processing machinery. | Zhijie Hu Mengxia Li Zhanfeng Huo Liutao Chen Susu Liu Ke Deng Xin Lu Shangwu Chen Yonggui Fu Anlong Xu | 2022 | Journal of Molecular Cell Biology2022，14，8： | 0 |
| 8 | Design of Transformer Magnetic Bias Protection Device in High Power Electronic Equipments显示文摘 | Xi Lei Guizhi Xu Zhanfeng Deng | 2014 | Journal of Electrical Engineering2014，2，2： | 0 |
| 9 | Operating conditions combination analysis method of optimal water management state for PEM fuel cell显示文摘The water content of proton exchange membrane fuel cells(PEMFCs)affects the transport of reactants and the conductivity of the membrane.Effective water management measures can improve the performance and extend the lifespan of the fuel cell.The water management state of the stack is influenced by various external operating conditions,and optimizing the combination of these conditions can improve the water management state within the stack.Considering that the stack's internal resistance can reflect its water management state,this study first establishes an internal resistance-operating condition model that considers the coupling effect of temperature and humidity to determine the variation trend of total resistance and stack humidity with single-factor operating conditions.Subsequently,the water management state optimization method based on the ANN-HGPSO algorithm is proposed,which not only quantitatively evaluates the influence weights of different operating conditions on the stack's internal resistance but also efficiently and accurately obtains the optimal combination of five operating conditions:working temperature,anode gas pressure,cathode gas pressure,anode gas humidity,and cathode gas humidity to achieve the optimal water management state in the stack,within the entire range of current densities.Finally,the response surface experimental results of the stack also validate the effectiveness and accuracy of the ANN-HGPSO algorithm.The method mentioned in this article can provide effective strategies for efficient water management and output performance optimization control of PEMFC stacks. | Wenxin Wan Yang Yang Yang Li Changjun Xie Jie Song Zhanfeng Deng Jinting Tan Ruiming Zhang | 2023 | Green Energy and Intelligent Transportation2023，2，4： | 0 |
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