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| 1 | The Interactions among DWARF10,Auxin and Cytokinin Underlie Lateral Bud Outgrowth in Rice显示文摘Previous studies have shown that DWARF10(D10) is a rice ortholog of MAX4/RMS1/DAD1,encoding a carotenoid cleavage dioxygenase and functioning in strigolactones/strigolactone-derivatives(SL) biosynthesis.Here we use D10-RNA interference(RNAi) transgenic plants similar to d10 mutant in phenotypes to investigate the interactions among D10,auxin and cytokinin in regulating rice shoot branching.Auxin levels in node 1 of both decapitated D10-RNAi and wild type plants decreased significantly,showing that decapitation does reduce endogenous auxin concentration,but decapitation has no clear effects on auxin levels in node 2 of the same plants.This implies that node 1 may be the location where a possible interaction between auxin and D10 gene would be detected.D10 expression in node 1 is inhibited by decapitation,and this inhibition can be restored by exogenous auxin application,indicating that D10 may play an important role in auxin regulation of SL.The decreased expression of most OsPINs in shoot nodes of D10-RNAi plants may cause a reduced auxin transport capacity.Furthermore,effects of auxin treatment of decapitated plants on the expression of cytokinin biosynthetic genes suggest that D10 promotes cytokinin biosynthesis by reducing auxin levels.Besides,in D10-RNAi plants,decreased storage cytokinin levels in the shoot node may partly account for the increased active cytokinin contents,resulting in more tillering phenotypes. | Shuying Zhang Gang Li Jun Fang Weiqi Chen Haipai Jiang Junhuang Zou Xue Liu Xianfeng Zhao Xiaobing Li Chengcai Chu Qi Xie Xiangning Jiang Lihuang Zhu | 2010 | Journal of Integrative Plant Biology2010，52，7： | 14 |
| 2 | Simulation and study on mitigation measures of frequent subsynchronous oscillation with low amplitude at multi-power plants显示文摘Subsynchronous oscillation (SSO) with low amplitude that exceeds cumulative fatigue threshold of the generator shaft frequently could significantly reduce the shaft's service life, which is a new SSO problem that emerges in recent years. According to the real recording oscillograph, the basic reason for frequently over-threshold SSO with low amplitude at multi-power plants was analyzed based on Hulunbuir League system. The sensitivities of the electrical damping to the main electrical parameters in the contributing loop of subsynchronous torsional interaction were calculated. Based on the sensitivities, a simulation method was presented, which was used to excite the same oscillation as the actual case by exerting disturbance on the firing angle. The limitation of wide-band and narrow-band supplementary subsynchronous damping controller (SSDC) for mitigating this kind of SSO was analyzed based on the electromagnetic transient simulation model of Hulunbuir League system. The difference of supplementary excitation damping controller (SEDC) and parallel-form FACTS connected to the generator terminal was compared from the aspects of response time and the ability of damping torque supplying. The analysis indicates that their response time is similar but FACTS has stronger ability of damping torque supplying than SEDC. Time-domain simulation method was used to compare the mitigation effects of SEDC, static var compensator (SVC) and static synchronous compensator (STATCOM). Considering the mitigation effect, the floor space limit of the power plant and so on, STATCOM was considered as the best mitigation measure. A control strategy of cascaded STATCOM for engineering application was presented and the capacity for SSO mitigation as well as output characteristics was analyzed. The analysis indicates that STATCOM using the proposed control strategy has better mitigation effect and output characteristics with smaller capacity. | XIAO XiangNing ZHANG Jian GAO BenFeng WU YunSheng LUO Chao GUO ChunLin YANG Lin | 2013 | Science China(Technological Sciences)2013，56，6： | 13 |
| 3 | The BUD2 mutation affects plant architecture through altering cytokinin and auxin responses in Arabidopsis显示文摘植物生长素和细胞激动素的比率在由支持或镇压调整天线建筑学起一个关键作用腋的芽长出。我们以前鉴别了显示的 Arabidopsis 变异的 bud2 改变了根和射击建筑学,它源于 S-adenosylmethionine decarboxylase 的 loss-of-function 4 (SAMDC4 ) 。在这研究,我们证明 BUD2 能被植物生长素导致,并且正式就职依赖于植物生长素发信号。BUD2 的变化导致弱敏到植物生长素和超敏性到细胞激动素,它被胼胝正式就职试金证实。我们的学习建议 polyamines 可以在通过影响细胞激动素和敏感的动态平衡到植物生长素和细胞激动素调整植物建筑学起他们的作用。 | Xia Cui Chunmin Ge Renxiao Wang Huanzhong Wang Weiqi Chen Zhiming Fu Xiangning Jiang Jiayang Li Yonghong Wang | 2010 | Cell Research2010，20，5： | 12 |
| 4 | Quantitative determination of AI-2 quorum-sensing signal of bacteria using high performance liquid chromatography–tandem mass spectrometry显示文摘Autoinducer 2(AI-2), an important bioactive by-product of the Lux S-catalyzed S-ribosylhomocysteine cleavage reaction in the activated-methyl-cycle, has been suggested to serve as a universal intra- and inter-species signaling molecule. The development of reliable and sensitive methods for quantitative determination of AI-2 is highly desired.However, the chemical properties of AI-2 cause difficulty in its quantitative analysis.Herein, we report a high performance liquid chromatography-tandem mass spectrometric method that enables reproducible and sensitive measurement of AI-2 concentrations in complex matrixes. 4,5-Dimethylbenzene-1,2-diamine(DMBDM), an easy-to-obtain commercial reagent, was used for the derivatization treatment. The assay was linear in the concentration range of 1.0–1000 ng/m L(R^2= 0.999) and had a lower limit of quantification of0.58 ng/m L. The method exhibited several advantages, e.g., high selectivity, wide linear response range, and good sensitivity. Furthermore, the effectiveness of the method was further validated through measuring AI-2 concentrations in the cell-free culture supernatant from Escherichia coli wild type. | Fang Xu Xiangning Song Peijie Cai Guoping Sheng Hanqing Yu | 2017 | Journal of Environmental Sciences2017，29，2： | 8 |
| 5 | Real-time State Monitoring During Switching Mode Transitions in High Power Three-level Inverters显示文摘大功率多电平逆变器近年来在实际工业生产中得到越来越广泛的应用。多电平逆变器由于结构复杂,采用元器件较多,因此在设计和实验中,实现各个工作状态下运行参数的同步监测和分析较为困难。本文针对大功率三电平逆变器,实现开关动态特性的在线测试,在此基础上,进一步研究三电平逆变器在开关状态变化时理论与实际负载运行工况下电路拓扑的转换变化规律。通过全电路电气参数和元器件状态的实时监测,发现在三电平逆变器非正常运行状态下开关转换时额外电应力,同时,深入研究在实际工况运行条件非正常状态下该额外电应力出现的机理和原因,为三电平逆变器的故障诊断提供了参考,对于设计高可靠性的多电平逆变器系统有一定的理论和现实意义。 | HE Xiangning WU Yansong YANG Bingjian WANG Jun DENG Yan | 2012 | 中国电机工程学报2012，32，30： | 8 |
| 6 | COMPOSITE SOFT SWITCHING CONFIGURATION FOR INVERTERS USING BRIDGE LEG MODULES显示文摘The use of either lossless snubbers or resonant zero voltage switching (ZVS) and zero current switching (ZCS) techniques can increase efficiency and reduce electromagnetic inter ference (EMI) and noise of industrial power equipment at high switching frequencies. This paper presents an adaptive composite soft switching configuration which combines snubber functions and resonant ZCS circuits for switches in inverters using power bridge leg modules. Simulation and experimental results are included. | He Xiangning Yang Yuwen (Dept of Electrical Eng., Zhejiang University, Hangzhou 310027)Kuang Sheng(Department of Engineering, University of Cambridge, Cambridge, U.K.)Barry W. Williams Stephen J. Finney(Dept. of Computing & Electrical Eng., Heriot-Watt University, Edinburgh EH14 4AS, U.K.) | 2001 | Journal of Electronics(China)2001，18，1： | 7 |
| 7 | Firing patterns of long-term cultured neuronal network on multi-electrode array显示文摘Spontaneous neuronal activity plays an important role in the development and plasticity of brain. To explore the developmental changes in the firing pattern of the neuronal networks in vitro, the hippocampal neurons were cultured on the multi-microelectrode array dish for over 14 weeks and the spontaneous activity was recorded. The results showed that random firing was observed in the 1st week and transformed into synchronized activity after two weeks, then tightly synchronized activity appeared in week 2 to 7 and finally the activities transformed into the random firing pattern. These results suggested three stages in the long-term development of neuronal network in vitro: the stage for connection, the stage of synchronized activity and the mature stage. Synchronized firing shown by spontaneous activity was an important phenomenon in high density cultured neuronal network and transformed patterns during development. | LI Xiangning ZHOU Wei LIU Man ZENG Shaoqun LUO Qingming | 2006 | Progress in Natural Science:Materials International2006，16，12： | 7 |
| 8 | Design of a Hardware/Software FPGA-Based Driver System for a Large Area High Resolution CCD Image Sensor显示文摘可编程的门数组(FPGA ) 基于的硬件 / 软件域驱动程序系统被建议并且高为 KAF-39000 大区域证明分辨率充电联合了设备(电荷耦合器件) 。KAF-39000 司机系统的要求被分析。有特定的集成电路(ASIC ) 削的申请的微处理器的结构被实现设计驱动程序系统。系统测试结果证明成像类似物数据的双隧道与 0.87 frame/s 的框架率被获得。分别地,水平预定并且垂直预定的频率是 22.9 MHz 和 28.7 kHz 它几乎分别地到达了 24 MHz 和 30 kHz 的理论价值。 | Ying CHEN Wanpeng XU Rongsheng ZHAO Xiangning Chen | 2014 | Photonic Sensors2014，4，3： | 5 |
| 9 | A statistical test on diversity changes of Early and Middle Permian fusulinacean fauna in South China显示文摘The rarefaction analysis has been conducted to test the species diversity changes of the Early and Middle Permian fusulinacean fauna in South China. The results reveal that the number of species dramatically increased since the earliest Permian and quickly reached the maximum value in the early Zisongian representing the highest species diversity for the whole Early and Middle Permian. The species diversity stabilized in the plateau through the Zisongian; however, it started to decline in the following Longlinian and sustained a longstanding low level during the mid-Early Permian. With the appearance of new fusulinacean taxa with septulum structures, the number of species raised again in the late-Early Permian, followed by a decline in the Middle Permian Neoschwagerina simplex zone. Although the species diversity increased apparently in the Kuhfengian, it never rebounded back to the same level as in the Early Permian. In the mid-Middle Permian, species diversity began to decrease continuously and led to the disappearance of most fusulinacean species by the end of the Middle Permian. | SHI Yukun YANG Xiangning | 2005 | Science China Earth Sciences2005，48，7： | 4 |
| 10 | GaN-based substrates and optoelectronic materials and devices显示文摘In order to solve the problems of GaN heteroepitaxy on sapphire substrate,some techniques were explored.Freestanding GaN substrates have been made by hydride vapor phase epitaxy(HVPE),laser lift-off(LLO),and chemical mechanical polishing techniques.Wafer bending and cracking in the HVPE growth were partly settled by pulsed flow modulation method.High-crystal quality was established for 1.2 mm thick GaN substrate by X-ray diffraction measurement,in which the full width of half maximum values were 72,110 arcsec for(102),(002)peaks.A novel micro-size patterned sapphire substrate(PSS)and a nano PSS were also fabricated.High-power vertical structure light emitting diodes(VSLEDs)have been developed by Au–Sn eutectic wafer bonding,homemade micro-area LLO,and light extraction structure preparation.The high-injection-level active region with low temperature GaN sandwiched layers was used for lowefficiency droop.The light output power of VSLED was achieved as 400 mW driven at 350 mA,and the dominant wavelength is about 460 nm.The structures and properties of strain modulated superlattices(SLs)and quantum wells as well as advanced simulation of carriers transport across the electron blocking layer were investigated in laser diodes.The hole concentration was achieved as high as1.6 9 1018cm-3in AlGaN/GaN SLs:Mg by inserting an AlN layer.High-quality AlGaN epilayers and structures were grown by MOCVD.Some device structures of UV LEDs and detectors were demonstrated.The emission wavelength of 262 nm UV LED has been successfully fabricated.At last,high-quality InN and InGaN materials for solar cell were grown by boundary-temperature-controlled epitaxy and growth-temperature-controlled epitaxy.Hall-effect measurement showed a recorded electron mobility of 3,280 cm2/(V s)and a residual electron concentration of 1.47 9 1017cm-3at 300 K. | Guoyi Zhang Bo Shen Zhizhong Chen Xiaodong Hu Zhixin Qin Xinqiang Wang Jiejun Wu Tongjun Yu Xiangning Kang Xingxing Fu Wei Yang Zhijian Yang Zhizhao Gan | 2014 | Chinese Science Bulletin2014，59，12： | 4 |
| 11 | Defect inspection of flip chip package using SAM technology and fuzzy C-means algorithm显示文摘Solder bumps are widely used in surface mount components, which provide electrical and mechanical connection between the chip/package and the substrate. As the solder bump getting smaller in dimension and pitch, it becomes more difficult to inspect the solder defects hidden in the IC package. In this paper, an intelligent inspection method using the scanning acoustic microscopy(SAM) and the fuzzy C-means(FCM) algorithm was investigated. A flip chip package of FA10 was chosen as the test sample. The SAM tests of FA10 were carried out in C-scan mode. The sub-image of every solder bump was segmented from the SAM image. The statistical features were then calculated and adopted for clustering of solder bumps using the FCM algorithm. The recognition results of FCM reached a high accuracy of 94.3%. The intelligent system is effective for defect inspection in high density packages. | LU XiangNing LIU Fan HE ZhenZhi LI LiYi HU NingNing SU Lei | 2018 | Science China(Technological Sciences)2018，61，9： | 4 |
| 12 | Quantitative Analysis of Cytokinins in Plants by High Performance Liquid Chromatography:Electronspray Ionization Ion Trap Mass Spectrometry显示文摘The present paper introduces a highly sensitive and selective method for simultaneous quantification of 12 cytokinins(free form and their conjugates).The method includes a protocol of extraction with methanol/water/formic acid(15/4/1,v/v/v) to the micro-scale samples,pre-purification with solid phase extraction(SPE) cartridges of the extracts,separation with a high performance liquid chromatography(HPLC) and detection by an electrospray ionization ion trap mass spectrometry(ESI-Ion trap-MS) system in a consecutive ion monitoring(CRM) mode at the three stage fragmentation of mass spectrometry(MS 3).The lowest detection level of the cytokinins of the method reaches 0.1-2.0 pg with a very wide range of linear regression from 1-512 pg,at the coefficient factors of 0.98-0.99.The feasibility of this method has been proven in the application of the method to the analysis of the trace-amount contents of cytokinins in the micro-scale samples of various types of plant materials,such as aerial parts of rice and poplar leaves etc.12 endogenous cytokinins had been identified and quantified in the plant tissues,with an acceptable relatively higher recovery rate from 40% to 70%. | Weiqi Chen Ying Gai Shichang Liu Renxiao Wang Xiangning Jiang | 2010 | Journal of Integrative Plant Biology2010，52，10： | 4 |
| 13 | Galectin-3-centered paracrine network mediates cardiac inflammation and fibrosis upon β-adrenergic insult显示文摘Rapid over-activation of β-adrenergic receptors (β-AR) following acute stress initiates cardiac inflammation and injury by activating interleukin-18 (IL-18),however,the process of inflammation cascades has not been fully illustrated.The present study aimed to determine the mechanisms of cardiac inflammatory amplification following acute sympathetic activation.With bioinformatics analysis,galectin-3 was identified as a potential key downstream effector of β-AR and IL-18 activation.The serum level of galectin-3 was positively correlated with norepinephrine or IL-18 in patients with chest pain.In the heart of mice treated with β-AR agonist isoproterenol (ISO,5 mg kg^(-1)),galectin-3 expression was upregulated markedly later than IL-18 activation,and Nlrp3^(-/-)and Il18^(-/-)mice did not show ISO-induced galectin-3 upregulation.It was further revealed that cardiomyocyte-derived IL-18 induced galectin-3 expression in macrophages following ISO treatment.Moreover,galectin-3deficiency suppressed ISO-induced cardiac inflammation and fibrosis without blocking ISO-induced IL-18 increase.Treatment with a galectin-3 inhibitor,but not a β-blocker,one day after ISO treatment effectively attenuated cardiac inflammation and injury.In conclusion,galectin-3 is upregulated to exaggerate cardiac inflammation and injury following acute β-AR activation,a galectin-3 inhibitor effectively blocks cardiac injury one day after β-AR insult. | Guomin Hu Jimin Wu Huijun Gu Xiangning Deng Wenli Xu Shan Feng Shuaixing Wang Yao Song Zhengda Pang Xiuling Deng Aleksandr E.Vendrov Nageswara R.Madamanchi Marschall S.Runge Xinyu Wang Youyi Zhang Han Xiao Erdan Dong | 2023 | Science China(Life Sciences)2023，66，5： | 3 |
| 14 | A High-Throughput Method for Screening Arabidopsis Mutants with Disordered Abiotic Stress-Induced Calcium Signal显示文摘不同压力在细胞的 Ca2+ 水平引起信号特定的变化,这被建立,它在 modulating 作为送信人工作多样的生理的过程。这些钙信号为压力改编是重要的。尽管钙信号串联的下游的部件的数字被识别了,在钙信号的在上游的事件留下逃犯,明确地,为钙要求的部件由于高产量的基因试金的缺乏表明产生。这里,我们在 Arabidopsis thaliana 为 Ca2+ 信号缺乏的异种在一幅向前基因的屏幕报导一个容易、有效的方法的发展。用这个方法,有混乱导致 NaCl 、导致 H2O2 的 Ca2+ 信号的 121 异种被孤立。 | Zhen Pan Yang Zhao Yuan Zheng Juntao Liu Xiangning Jiang Yan Guo | 2012 | Journal of Genetics and Genomics2012，39，5： | 3 |
| 15 | Genetic studies of schizophrenia:an update显示文摘Schizophrenia(SCZ) is a complex and heterogeneous mental disorder that affects about 1% of global population. In recent years,considerable progress has been made in genetic studies of SCZ. A number of common variants with small effects and rare variants with relatively larger effects have been identifi ed. These variants include risk loci identifi ed by genome-wide association studies,rare copy-number variants identifi ed by comparative genomic analyses,and de novo mutations identified by high-throughput DNA sequencing. Collectively,they contribute to the heterogeneity of the disease. In this review,we update recent discoveries in the fi eld of SCZ genetics,and outline the perspectives of future directions. | Jingchun Chen Fei Cao Lanfen Liu Lina Wang Xiangning Chen | 2015 | Neuroscience Bulletin2015，31，1： | 3 |
| 16 | Tuning parallel symbolic execution engine for better performance显示文摘 | Anil Kumar KARNA Jinbo DU Haihao SHEN Hao ZHONG Jiong GONG Haibo YU Xiangning MA: Jianjun ZHAO | 2018 | Frontiers of Computer Science2018，12，1： | 3 |
| 17 | Construction and analysis of a plant transformation binary vector pBDGG harboring a bi-directional promoter fusing dual visible reporter genes显示文摘The constitutive promoter of cauliflower mosaic virus 35S (CaMV 35S) is a polar unidirectional promoter and is widely used in plant genetic engineering. In the present study, the unidirectional CaMV 35S promoter has been modified to a bi-directional promoter by fusing its minimal promoter element to the 5′end of CaMV 35S promoter in the opposite orientation. To qualitatively and quantitatively esti-mate its bi-directional transcriptional function and activity, two visible reporter genes, gusA (β-glucuronidase, GUS) and gfp (green fluo-rescent protein, GFP), were fused to the two ends of the promoter in bi-orientations ending with NOS terminator sequences, respectively. Stable expression of gusA and gfp genes in transgenic tobacco (Nicotiana tabacum L.) was visulized by histochemically staining for GUS and fluorescence microscopic observation under UV for GFP in transgenic plants. The expression of two reporter genes showed that the constructed bi-directional promoter did have the bi-directional transcriptional function in both expected orientations. The quantitative estimation of GUS and GFP were determined on a HITACHI F1000 Fluorescence Spectrophotometer with various wavelengths of excita-tion and emission. The GUS activity varied from 8 to 250 pmol 4-MU / min / mg protein and the GFP content varied from 0.9 to 1.8 μg / mg protein in various lines of transgenic tobacco plants. Higher GUS activity generally coupled with lower GFP content, and vice versa. | Chunxiao Zhang Ying Gai Wenqi Wang Yanyan Zhu Xuemei Chen Xiangning Jiang | 2008 | Journal of Genetics and Genomics2008，35，4： | 3 |
| 18 | THEMIS observations of two substorms on February 26,2008显示文摘Two substorms occurred at ~04:05 and ~04:55 UT on February 26,2008 are studied with the in-situ observations of THEMIS satellites and ground-based aurora and magnetic field measurements.Angelopoulos et al.have made a comprehensive study of the 04:55 UT event.We showed detailed features of the two substorms with much attention to the first event and to the rela-tionship between mid-tail magnetic reconnection(MR) and substorm activities.It was found that in the earlier stage of each substorm,a first auroral intensification occurred 2-3 min soon after the start of mid-tail MR,followed by a slow and very lim-ited expansion.The auroral arcs were weak,short-lived,and localized,characterizing all features of a pseudobreakup.We re-garded the first auroral brightening as the initial onset of the substorms.A few minutes later,a second stronger auroral intensification appeared,followed by quick and extensive expansions.It was interesting to note that the second brightening and related poleward expansion happened almost simultaneously(within a couple of minutes) with the onset of earthward flow and dipolarization in the near-Earth tail and other phenomenon of the substorm expansion phase.We thus regarded the second auroral brightening as the major onset of the substorms.Furthermore,it was seen that during the growth phase of the two substorms,the polar cap open flux Ψ kept increasing,while it quickly reduced during the substorm expansion and recovery phase.These variations of Ψ implied that the evolution of the two substorm expansion phases were closely related to MR of tail lobe open field lines.Analysis of substorm activities revealed that the two events studied were small substorms;while estimate of MR rate indicated that the MR processes in the two substorms were weak.The aforementioned observations suggested that mid-tail MR initiated the pseudobreakup first;the earthward flow generated by MR transported magnetic flux and energy to the near-Earth tail to cause the formation of SCW and CD,which induced near-Earth dipolarization and major auroral brightening,and eventually led to the onset of the substorm expansion phase.These results were clearly consistent with the picture of NENL and RCS models and supported the two step initiation scenario of substorms. | CHU XiangNing PU ZuYin CAO Xin WANG Jue V.MISHIN V.ANGELOPOULOS LIU Jiang WEI Yong K.H.GLASSMEIER J.MCFADDEN D.LARSON S.MENDE H.FREY C.T.RUSSELL I.MANN D.SIBECK ZONG QiuGang FU SuiYan XIE Lun T.I.SAIFUDINOVA M.V.TOLOCHKO L.A.SAPRONOVA H.REME E.LUCEK | 2010 | Science China(Technological Sciences)2010，53，5： | 3 |
| 19 | MDM2 SNP309 contributes to tumor susceptibility:A meta-analysis显示文摘潜在地功能的多型性, SNP309,在 MDM2 的倡导者区域,基因在出版研究看了不确定的结果的癌症风险,而是个人被含有。获得在 MDM2 SNP309 和癌症的风险之间的协会的更精确的估计,我们在与肿瘤和 33,046 控制的不同类型包括了 26,160 个盒子的 59 份出版物执行了 70 单个研究的元分析。概括机会比率(或) 并且相应当适当时, 95% 信心间隔(CI ) 用改正效果和随机效果的模型被估计。总的来说,变体遗传型在不同基因模型为所有癌症类型与显著地增加的癌症风险被联系(GG 对 TT:或, 1.123;95% CI, 1.0561.193;GG/GT 对 TT:或, 1.028;95% CI, 1.0061.050 ) 。在成层的分析,为大多数的研究仍然是的增加的风险癌症,亚洲人口,和医院打字 -- 在不同基因模型的 /population-based 研究,而显著地减少了,风险在前列腺癌症被发现(GG 对 TT:或, 0.606;95% CI, 0.4070.903;GG/GT 对 TT:或, 0.748;95% CI, 0.5790.968 ) 。在结论,元分析的数据建议 MDM2 SNP309 是为癌症风险的潜在的 biomarker。 | Xiaoman Wo Dong Han Haiming Sun Yang Liu Xiangning Meng Jing Bai Feng Chen Yang Yu Yan Jin Songbin Fu | 2011 | Journal of Genetics and Genomics2011，38，8： | 3 |
| 20 | Modeling and Control of an Isolated Module Multilevel DC/DC Converter for DC Grid显示文摘This paper presents an isolated DC/AC/DC converter using a middle frequency transformer coupling two modular multilevel converters(MMC),suitable for interconnecting DC transmission lines of different voltage levels in high voltage direct current(HVDC)system.The basic operational principle of the isolated module multilevel DC/DC converter(IMMDCC)is analyzed.The dynamic model of IMMDCC is studied in detail and the transient relationship between DC side and AC side of IMMDCC is revealed,which is physically straightforward for understanding the power transfer in IMMDCC.The control strategy in D-Q coordinate system is put forward,and the fault characteristic and corresponding protection method is analyzed.Finally,computer simulation using Matlab/Simulink is performed to verify the dynamic model and the proposed control strategy.The simulation results show good performances and the quick response ability of the proposed control strategy. | Xinying Wang Guangfu Tang Zhiyuan He Xiaoguang Wei Hui Pang Xiangning Xiao | 2017 | CSEE Journal of Power and Energy Systems2017，3，2： | 3 |
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