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738篇 您的检索式:作者名="VITTAL"
    题名 作者 年代 出处 被引量
1Modeling,Control,and Protection of Modular Multilevel Converter-based Multi-terminal HVDC Systems:A Review显示文摘Multi-terminal direct current(MTDC)grids provide the possibility of meshed interconnections between regional power systems and various renewable energy resources to boost supply reliability and economy.The modular multilevel converter(MMC)has become the basic building block for MTDC and DC grids due to its salient features,i.e.,modularity and scalability.Therefore,the MMC-based MTDC systems should be pervasively embedded into the present power system to improve system performance.However,several technical challenges hamper their practical applications and deployment,including modeling,control,and protection of the MMC-MTDC grids.This paper presents a comprehensive investigation and reference in modeling,control,and protection of the MMC-MTDC grids.A general overview of state-of-the-art modeling techniques of the MMC along with their performance in simulation analysis for MTDC applications is provided.A review of control strategies of the MMC-MTDC grids which provide AC system support is presented.State-of-the art protection techniques of the MMCMTDC systems are also investigated.Finally,the associated research challenges and trends are highlighted.Lei Zhang Yuntao Zou Jicheng Yu Jiangchao Qin Vijay Vittal George G.Karady Di Shi Zhiwei Wang 2017CSEE Journal of Power and Energy Systems2017,3,4:17
2Simplification, expansion and enhancement of direct interior point algorithm for power system maximum loadability 显示文摘Dai Y McCalley J D Vittal V 2000IEEE Trans on Power Systems2000,15,3:2
3Early term infants are at increased risk of requiring neonatal intensive care显示文摘Background: Increasing evidence is demonstrating thatinfants born early on during the term period are at increasedrisk of morbidity compared with infants born closer to acomplete 40 week gestational pregnancy. The purpose of thisstudy was to compare early term [gestation age (GA): 37-376/7 weeks] neonatal outcomes with those of other full termneonatal intensive care unit (NICU) admissions.Methods: Retrospective chart review of all term infantsadmitted to the NICU at New York University LangoneMedical Center over a 17 month period. Subjects weregrouped and analyzed according to their GA at birth: 1)early term infants (GA between 37 0/7 to 37 6/7 weeks) and2) other term infants (38 0/7 weeks and older).Results: Early term infants were more likely to requireNICU care than other term infants [relative risk: 1.42,95% confidence interval (CI)=1.07-1.88), P=0.01]. In theNICU, they are more likely to manifest respiratory distresssyndrome [odds ratio (OR)=5.7, 95% CI=1.6-19.8, P<0.01]and hypoglycemia (OR=4.6, 95% CI=2.0-10.4, P<0.001).In addition, early term neonates were more likely to beborn via elective cesarean section than other term neonates(OR=4.1, 95% CI=2.0-8.5, P<0.001).Conclusions: Being born at early term is associatedwith increased risk of respiratory disease and hypoglycemiarequiring neonatal intensive care. Further efforts directedat decreasing early term deliveries may be warranted.Pradeep Vittal Mally Nickolas Theophilos Agathis Sean Michael Bailey 2016World Journal of Pediatrics2016,12,1:2
4Large-diameter biliary orifice balloon dilation to aid in endoscopic bile duct stone removal: a multicenter series显示文摘Siriboon Attasaranya Young Koog Cheon Harsha Vittal Douglas A. Howell Donald E. Wakelin John T. Cunningham Niraj Ajmere Ronald W. Ste Marie Kanishka Bhattacharya Kapil Gupta Martin L. Freeman Stuart Sherman Lee McHenry James L. Watkins Evan L. Fogel Suzet 2008Gastrointestinal Endoscopy2008,,7:2
5Risk based voltage security assessment显示文摘Hua Wan McCalley J D Vittal V 2000IEEE Transactions on Power Systems2000,15,4:1
6Definition and classification of power system stability显示文摘Kundur P Paserba J Vittal V 2006IEEE Transction on Power Systems2006,21,1:1
7System vulnerability as a concept to assess power system dynamic security显示文摘Fouad A A Qin Zhou Vittal V 1994IEEE Trans on Power Systems1994,9,2:1
8Statistical characterization of wind power ramps via extreme value analysis显示文摘Ganger D Zhang J S Vittal V 2014IEEE Transactions on Power Systems2014,29,6:1
9Diakoptic state estimation using phasor measurement units显示文摘Weiqing J Vittal V Heydt G T 2008IEEE Transactions on Power Systems2008,23,4:1
10Risk based voltage security assessment显示文摘WAN Hua MCCALLEY J D VITTAL V 2000IEEE Trans on Power Systems2000,15,4:1
11Integrin responses to mechanical stretching in trabecular meshwork cells 显示文摘Rose AY Bradley JM Vittal V 2002Invest Ophthalmol Vis Sci2002,43,:1
12Online risk- based security assessment显示文摘NI Ming MCCALLEY J D VITTAL V 2003IEEE Trans on Power Systems2003,18,1:1
13Ther-mal Conversion of a Helical Coil into a Three-dimen-sional Chiral Framework 显示文摘RANFORD J D VITTAL J J WU D Q etal 1999Angew Chem Iiit Ed1999,38,23:1
14Definition and classification of power system stability 显示文摘KUNDUR P PASERBA J AJJARAPU V ANDERSSON G BOSE A CANIZARES C HATZIARGYRIOU N HILL D STANKOVICA TAYLOR C van CUTSEM T VITTAL V 2004IEEE Transactions on Power Systems2004,19,3:1
15Impact of increased penetration of DFIG-based wind turbine generators on transient and small signal stability of power systems显示文摘Gautam Durga Vittal Vijay Harbour Terry 2009IEEE Trans on Power Systems2009,24,3:1
16Tricarbonyl Rhenium(I) Complexes of Phosphine-derivatized Amines, Amino Acids and a Model Peptide:Structures, Solution Behavior and Cytotoxicity显示文摘Hor T S A Vittal J J Zhang J Y 2002J Organomet Chem2002,650,12:1
17Water-soluble CdS quantum dots prepared from a refluxing single precursor in a queous solution显示文摘ZHANG Z H CHIN W S VITTAL J J 0,,48:1
18Simplification, expansion and enhancement of direct interior point algorithm for power system maximum load ability 显示文摘DAI You-jie MCCALLEY J D VITTAL V 2000IEEE Transaction on Power Systems2000,15,3:1
19Online Risk-based Security Assessment显示文摘Ming N Mccalley J D Vittal V 2003IEEE Trans on Power Systems2003,18,1:1
20Investigation of modal interaction and its effects on control performance in stressed power systems using normal forms of vector fields显示文摘Lin C M Vittal V Kliemann W 1996IEEE Transactions on Power Systems1996,11,2:1
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