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Symmetrical Components Observer for LPMM Back EMF Based on Negative-Sequence Current Injection
IEEE Transactions on Industrial Electronics, 2022Thrust force ripple, including no-load detent force and electromagnetic thrust ripple, worsens the precision of the linear permanent magnet machine (LPMM) control system. This article focuses on the elimination of electromagnetic thrust ripple caused by the finite length of the LPMM mover core.
Zhi Chen 0012 +4 more
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IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
Due to the presence of full-bridge submodules (FBSMs), hybrid modular multilevel converters (HMMCs) consisting of FBSMs and half-bridge submodules (HBSMs) can work under the over-modulation conditions, which means that half of the dc voltage is less than the magnitude of the ac voltage.
Pengfei Hu +2 more
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Due to the presence of full-bridge submodules (FBSMs), hybrid modular multilevel converters (HMMCs) consisting of FBSMs and half-bridge submodules (HBSMs) can work under the over-modulation conditions, which means that half of the dc voltage is less than the magnitude of the ac voltage.
Pengfei Hu +2 more
openaire +2 more sources
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 +4 more
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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 +4 more
openaire +1 more source
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 +2 more
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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 +2 more
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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 +6 more
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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 +6 more
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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. +6 more
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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. +6 more
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2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D), 2022
Alexandre B. Nassif +3 more
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Alexandre B. Nassif +3 more
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Using Untransposed Overhead Lines to Reduce Negative Sequence Current Injected by Railway Substation
2022Zhe Liu, Zhengqing Han, Shibin Gao
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