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检索条件"机构=State Key Lab of Control and Simulation of Power System and Generation"
623 条 记 录,以下是341-350 订阅
Photovoltaic plant operating statuses identification model based on support vector machine using loss quantity of electricity feature parameters
Photovoltaic plant operating statuses identification model b...
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International Conference on Renewable power generation (RPG 2015)
作者: Kangping Li Fei Wang Zhao Zhen Yujing Sun Zengqiang Mi Hongbin Sun Chun Liu Bo Wang Jing Lu State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources (North China Electric Power University) Baoding 071003 Hebei Province China State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment (Department of Electrical Engineering Tsinghua University) Haidian District Beijing 100084 China China Electric Power Research Institute Haidian District Beijing 100192 China)
Operating Statuses Identification (OSI) can help operators to find fault timely and minimize the loss. So it is of great significance for optimal operation of photovoltaic (PV) plants. The loss quantity of electricity... 详细信息
来源: 评论
Cloud identification model for sky images based on Otsu
Cloud identification model for sky images based on Otsu
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International Conference on Renewable power generation (RPG 2015)
作者: Hongping Li Fei Wang Hui Ren Hongbin Sun Chun Liu Bo Wang Jing Lu Zhao Zhen Xiaoli Liu State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources (North China Electric Power University) Baoding 071003 Hebei Province China State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment (Department of Electrical Engineering Tsinghua University) Haidian District Beijing 100084 China China ElectricPowerResearch Institute HaidianDistrict Beijing 100192 China
Irradiance changes caused by clouds movement are the main factors, which lead to mutation of photovoltaic power. In order to increase the accuracy of the ultra-short-term photovoltaic power prediction, based on of clo... 详细信息
来源: 评论
Experimental investigation and analysis of some common faults for wind turbine  68
Experimental investigation and analysis of some common fault...
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68th Society for Machinery Failure Prevention Technology Conference: Technology Solutions for Affordable Sustainment, MFPT 2014
作者: Yang, Wenguang Li, Shaohua Jiang, Dongxiang State Key Laboratory of Control and Simulation of Power System and Generation Equipments Department of Thermal Engineering Tsinghua University Beijing100084 China
This paper focus on the fault characteristic by experimental research. A test rig is built for the direct driving stall fix-pitch horizontal axis wind turbine. 8 signals are collected by the experiment system, includi... 详细信息
来源: 评论
Phase-shift control of isolated bidirectional DC-DC converters for unidirectional power flow
Phase-shift control of isolated bidirectional DC-DC converte...
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作者: Ge, Junjie Zhao, Zhengming Ma, Junchao He, Fanbo Yuan, Liqiang Lu, Ting State Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing100084 China
In the conventional phase-shift control of isolated bidirectional DC-DC converters, the phenomenon of power backflow is quite obvious. General improved phase-shift control methods can reduce the power backflow of the ... 详细信息
来源: 评论
Electrical properties of oil-paper insulation affected by water conductivity during paper-making process
Electrical properties of oil-paper insulation affected by wa...
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32nd Electrical Insulation Conference, EIC 2014
作者: Huang, Jianwen Zhou, Yuanxiang Jin, Fubao Sha, Yanchao Zhang, Ling Le, Trung Hieu State Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing 100084 China
Developments of ultra-high voltage grid in China require better insulation materials, and that forces the transformer presspaper and pressboard manufactures to pay more attention to the papermaking process to enhance ... 详细信息
来源: 评论
Series-connected HV-IGBTs using active voltage control with status feedback circuit
Series-connected HV-IGBTs using active voltage control with ...
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作者: Ji, Shiqi Lu, Ting Zhao, Zhengming Yu, Hualong Yuan, Liqiang State Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing100084 China
The transient voltage unbalance is the major problem that limits the application of series-connected IGBTs in high voltage and high power converters. The asynchronous gate delay which causes that series-connected IGBT... 详细信息
来源: 评论
Research of algorithm and analysis of performance for DC surge impedance relay
Research of algorithm and analysis of performance for DC sur...
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12th IET International Conference on Developments in power system Protection, DPSP 2014
作者: Lei, Aoyu Dong, Xinzhou State Key Lab of Control and Simulation of Power Systems and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing 10084 China
Surge Impedance Relay(SIR) is applied to DC system. Characteristics of SIR in DC line are analysed. A DC SIR algorithm implementing wavelet transform applied to HVDC line protection is proposed. The feasibility of DC ... 详细信息
来源: 评论
The bandwidth of instrument current transformer for fault detection in distribution networks
The bandwidth of instrument current transformer for fault de...
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12th IET International Conference on Developments in power system Protection, DPSP 2014
作者: Jiang, Bo Dong, Xinzhou Shi, Shenxing Wang, Bin Bak, Dominik State Key Lab of Control and Simulation of Power Systems and Generation Equipments Dept. of Electrical Engineering Tsinghua University Haidian District Beijing 100084 China
The distribution network detection devices are generally using two kinds of instrument current transformer (ICT), of which one is used to transform the travelling wave and transient signals, while the other is used to... 详细信息
来源: 评论
Travelling wave sampling data sharing solution in distribution substation based on IEC61850
Travelling wave sampling data sharing solution in distributi...
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12th IET International Conference on Developments in power system Protection, DPSP 2014
作者: Ni, Jiang Wang, Bin Dong, Xinzhou State Key Lab of Control and Simulation of Power Systems and Generation Equipments Dept. of Electrical Engineering Tsinghua University Haidian District Beijing 100084 China
The signal of travelling wave has the merit of immunity to system oscillation, transition resistance, CT saturation and the neutral point operation modes;it has been widely applied in field of fault detection and prot... 详细信息
来源: 评论
Virtual flux based direct power control for three-level PWM rectifier  17
Virtual flux based direct power control for three-level PWM ...
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2014 17th International Conference on Electrical Machines and systems, ICEMS 2014
作者: Yingchao, Zhang Liping, Jin Yongchang, Zhang Ting, Lu Zhengming, Zhao Key Lab. of Special Power Supply of PLA Chongqing Communication Institute China North China University of Technology Power Electronics and Motor Drive Engineering Research Center China State Key Lab. of Control and Simulation of Power System and Generation Equipments Tsinghua University China
This paper presents a new control strategy for three-level neutral point clamped (NPC) pulse width modulated (PWM) rectifier without power source voltage sensors. The relationship between instantaneous power and volta... 详细信息
来源: 评论