Results 221 to 230 of about 179,404 (241)

A Novel Negative-Sequence Current Injection Method for Reducing LVPMM Electromagnetic Thrust Ripple Considering Static Longitudinal End Effect

IEEE Transactions on Industrial Electronics, 2021
The thrust force ripple of a linear motor includes positioning force and electromagnetic thrust ripple. Compared to the conventional rotary motor, linear vernier permanent magnet machines (LVPMM) break at both ends, leading to three-phase asymmetry.
Zhi Chen 0012, Wubin Kong, Chaojie Shi, Ronghai Qu, Vincent Fedida   +4 more
openaire   +1 more source

Evaluation of negative sequence current injecting into the public grid from different traction substation in electrical railways

IET Conference Publications, 2009
This paper formulated the mathematical model of traction transformers of single phase traction substation, Three phase- two phase traction substations (V/V traction transformer, Scott transformer, impedance-matching balance transformer) which are widely used in China electrified railways.
null Haiqun Wang, null Yingjie Tan, null Qin-chang Gui   +2 more
openaire   +1 more source

Negative sequence current injection control algorithm compensating for unbalanced PCC voltage in medium voltage PMSG wind turbines

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA), 2014
This paper proposes a control algorithm for permanent magnet synchronous generator with a back-to-back three-level neutral-point clamped voltage source converter in a medium-voltage offshore wind power system under unbalanced grid conditions. The proposed control algorithm particularly compensates for the unbalanced grid voltage at the point of common ...
null Jayoon Kang, null Daesu Han, Yongsug Suh, null Byoungchang Jung, null Jeongjoong Kim, null Jonghyung Park, null Youngjoon Choi   +6 more
openaire   +1 more source

Capacitor voltage balance performance comparison of MMC-STATCOM using NLC and PS-PWM strategies during negative sequence current injection

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe), 2016
This paper addresses the modular multilevel converter applied as a static synchronous compensator. The main objective of this work is to compare the converter performance considering two different submodule capacitor voltage balancing strategies: nearest level control and phase-shifted pulse width modulation, during positive and negative sequence ...
Pereira, Heverton A., F. Cupertino, Allan, S. Xavier, Lucus, Sangwongwanich, Ariya; id_orcid 0000-0002-2587-0024, Máthé, Lászlo; id_orcid 0000-0002-1029-3340, Bongiorno, Massimo, Teodorescu, Remus; id_orcid 0000-0002-2617-7168   +6 more
openaire   +3 more sources

Impact of IBR Negative-Sequence Current Injection on Ground Fault Temporary Overvoltage and Ground Overcurrent Protection

2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D), 2022
Alexandre B. Nassif, Eric Loi, Keaton A. Wheeler, Shay Bahramirad   +3 more
openaire   +1 more source

Using Untransposed Overhead Lines to Reduce Negative Sequence Current Injected by Railway Substation

2022
Zhe Liu, Zhengqing Han, Shibin Gao
openaire   +1 more source

Voltage balance strategy for DC-port failures of three-phase cascaded H-bridge rectifiers based on negative sequence current injection

Journal of Power Electronics, 2022
Xiaohan Liu, Xiao Liang, Kaiyue Gong, Siqi An, Xu Peng, Jun Cai, Xinyu Zhu, Chao Zhou   +7 more
openaire   +1 more source

Dual-dVOC Based Controlled Negative Sequence Current Injection for Grid-Forming Inverters under Asymmetrical Grid Conditions

2023 IEEE Power & Energy Society General Meeting (PESGM), 2023
Arnab Acharya, Raja Ayyanar
openaire   +1 more source

Impact of converters’ negative-sequence fault current injection on distance protection

IET Conference Proceedings
Di Liu, Qiteng Hong, Shuxiu Cao, Adam Dyśko, Lie Xu, Campbell Booth   +5 more
openaire   +1 more source

Active islanding detection method based on grid-connected photovoltaic inverter and negative sequence current injection

2014 International Conference on Power System Technology, 2014
null Zhihui Dai, null Zhiqiang Chong, null Xuan Liu, null Chuan Li   +3 more
openaire   +1 more source