Results 81 to 90 of about 2,383,589 (201)
Collaborative Suppression Strategy for AC Asymmetric Faults in Offshore Wind Power MMC-HVDC Systems
EnergiesWhen offshore wind power is connected to a grid via Modular multilevel converter-based High Voltage Direct Current (MMC-HVDC), the sending-end alternating current (AC) system is susceptible to asymmetrical faults. These faults lead to overcurrent surges,
Xiang Lu +5 more
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The Journal of Engineering, 2015 This study proposes a polar voltage control-based direct torque control method to reduce the effects of unbalanced grid voltage on doubly-fed induction generator (DFIG)-based wind turbine system.
Badrinarayan Bansilal Pimple +2 more
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International Journal of Electrical Power & Energy Systems, 2019 Abstract This paper proposes a new algorithm for power transformer differential protection based on the instantaneous-current-value negative sequence current signals, which are reconstructed in discrete time-domain from the negative sequence phasor for the different transformer windings.
Larissa M. Peres, Kleber M. Silva
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International Transactions on Electrical Energy SystemsIn view of the fact that the influence of positive and negative sequence decomposition, which is widely used in positive and negative sequence decoupling control in control system, on the fault current calculation process is not deeply considered in the ...
Botong Li +4 more
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Control strategy for microgrid under three-phase unbalance condition
Journal of Modern Power Systems and Clean Energy, 2016 Microgrid (MG) is generally developed at utility terminal which contains lots of unbalanced loads and distributed generations (DGs). The interaction between MG and the unbalance loads or DGs will degrades the control performance of interfaced inverter in
Hongtao Shi +3 more
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Magnetic core current steering commutator Patent [PDF]
, 1970 Describing magnetic core current switching device for steering bipolar current pulses to memory ...
Zottarelli, L. J.
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Compressibility and probabilistic proofs
, 2017 We consider several examples of probabilistic existence proofs using compressibility arguments, including some results that involve Lov\'asz local lemma.Comment: Invited talk for CiE 2017 (full ...
A Rumyantsev +4 more
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The Plasma Interaction Experiment (PIX) description and test program [PDF]
The plasma interaction experiment (PIX) is a battery powered preprogrammed auxiliary payload on the LANDSAT-C launch. This experiment is part of a larger program to investigate space plasma interactions with spacecraft surfaces and components.
Culp, D. H. +4 more
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Kongzhi Yu Xinxi Jishu, 2013 This paper illustrated var and negative sequence comprehensive compensation principles of cascaded static var generator(SVG) with star-configuration. The mathematical expression of zero-sequence voltage was deduced, and subsequently zero-sequence voltage
XIONG Qiaopo, LUO An, ZENG Zhizhen
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电力工程技术Flexible interconnection and dynamic power flow regulation in distribution networks are achieved by soft open point (SOP), optimizing the configuration and scheduling of distribution resources. To improve the load voltage during asymmetric ground faults,
Xuze WANG, Wu CHEN, Haixi ZHAO, Shi CHEN
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