Results 11 to 20 of about 9,115 (324)

Optimal Determination of Synchronous Condenser Placement and Voltage Setting for Enhancing Power System Stability [PDF]

Energies
With the increasing share of renewable energy in power systems, the instability of the power systems is becoming increasingly significant. Consequently, power system stability has become a critical issue, and non-transmission alternatives have been ...
Juseong Lee, Hyeongjun Jo, Soobae Kim
doaj   +2 more sources

Research on optimal configuration method of distributed synchronous condensers for renewable energy integrated distribution networks

Frontiers in Energy Research
To address transient voltage violations and inter-area power fluctuations caused by renewable energy integration in distribution networks, this paper proposes a distributed synchronous condenser optimal allocation method that explicitly accounts for ...
Chao Gao, Yuqing Zhang, Renqing Feng, Xinxiao Yan   +3 more
doaj   +2 more sources

Permanent magnet synchronous condenser with solid state excitation

2015 IEEE Power & Energy Society General Meeting, 2015
A synchronous condenser consists of a free-spinning wound-field synchronous generator and a field excitation controller. In this paper, we propose a synchronous generator that employs a permanent magnet synchronous generator (PMSG) instead of a wound-field machine. PMSGs have the advantages of higher efficiency and reliability.
Ping Hsu, Eduard Muljadi, Ziping Wu, Wenzhong Gao   +3 more
openaire   +3 more sources

Optimization Study of New Type High-Capacity Synchronous Condenser based on Coupling of Electromagnetic and Temperature Field [PDF]

E3S Web of Conferences, 2020
In order to optimize electromagnetic structure of new type high-capacity synchronous condenser, increase reactive capacity, and improve the speed of dynamic response, the theoretical derivation of the effects on the main performance parameters of the ...
Zhang Xi, Wang Weiqing, He Shan, Cheng Jing, Yuan Zhi   +4 more
doaj   +1 more source

Automatic Voltage Control of Large-scale Synchronous Condensers in UHV-DC Converter Station [PDF]

E3S Web of Conferences, 2021
Large-scale synchronous condenser can provide a powerful dynamic reactive power for the Ultra high-voltage (UHV) Direct Current (DC) transmission system. The dynamic characteristics of synchronous condenser ensure the reactive power support capability in
Qu Gang, Yuan Hao
doaj   +1 more source

Combination of Synchronous Condenser and Synthetic Inertia for Frequency Stability Enhancement in Low Inertia Systems [PDF]

, 2018
Jensen, Peter Højgaard, Nguyen, Ha Thi, Nielsen, Arne Hejde, Yang, Guangya   +3 more
core   +3 more sources

Research on Electromagnetic Field, Eddy Current Loss and Heat Transfer in the End Region of Synchronous Condenser with Different End Structures and Material Properties

Energies, 2021
Aiming at the problem of end structure heating caused by the excessive eddy current loss of large synchronous condensers used in ultra-high voltage (UHV) power transmission, combined with the actual operation characteristics of the synchronous condenser,
Xiaoshuai Bi, Likun Wang, Fabrizio Marignetti, Minghao Zhou   +3 more
doaj   +1 more source

Multi DC coordinated transient overvoltage suppression strategy for high proportion new energy sending terminal area

电力工程技术, 2023
Aiming at the transient overvoltage problem of high proportion new energy multi direct current (DC) transmission system caused by DC blocking fault, the interaction mechanism between multiple DC lines is analyzed firstly and the multi-outfeed voltage ...
ZHANG Qirui, XIN Chaoshan, LI Fengting, YIN Chunya, LIU Jiangshan, LI Yuan   +5 more
doaj   +1 more source

Quantitative studies of nucleic acid in the cell by micro-spectrophotometry I. The critique and improvement of the microspectrophotometry [PDF]

, 1959
Some critical experiments have been carried out on the microspectrophotometry using the lymphocytes of a mouse, stained with Feulgen reaction, revealing that most reliable value can be attained by illuminating the material with a small spot-light and ...
Utsumi, Kozo
core   +1 more source

Safety Risk of Synchronous Condenser with Typical Asymmetric Magnetic Field Faults Under Extreme Operating Conditions

Zhongguo dianli, 2023
Under typical magnetic field asymmetry faults, the synchronous condenser has an increase in unbalance force formed by forced excitation and tripping risk.
Guizhou CAO, Erqiang CHEN, Xuanjie FAN, Yucai WU, Zhenping LI, Shuhuai SHI   +5 more
doaj   +1 more source