Results 221 to 230 of about 10,525,702 (295)
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Optimal Kalman Estimation of Symmetrical Sequence Components
IEEE Transactions on Instrumentation and Measurement, 2020This article reexamines the problem of estimating symmetrical sequence components, more specifically, the optimal estimation of the magnitude and phases of sequence components. We first address and compare different setups for the optimal Kalman filter, including those that make use of three-phase measurements and those where the measurements are ...
Luisa H B Liboni +2 more
exaly +3 more sources
A practical and fast sequence components detection scheme for three-phase unbalanced grid voltage
International Journal of Electrical Power and Energy Systems, 2021Obtaining the sequence components (i.e. positive, negative and zero sequences) of three-phase unbalanced grid voltage (TUGV) is a prerequisite for realizing the high-performance grid-tied converter controls.
Mingxian Li, Liwei Du
exaly +2 more sources
Unbalance Assessment Using Sequence Components
2011This chapter starts with an introduction of unbalance assessment. It then describes sequence components in three phase system. Unbalance is assessed using sequence components. A case study has been shown on single phasing of an induction machine. Generation of sequence components along with their phase shift has been mathematically explained.
Surajit Chattopadhyay +2 more
openaire +2 more sources
IEEE Transactions on Magnetics, 2022
Post-fault modeling for dual three-phase permanent magnet synchronous motors (DTP-PMSMs) under the open-phase fault is presented in this article. By using the positive and negative sequence components for the dual three-phase system, the stator currents ...
Wenlong Li, Pengzhao Song, Ze Li
exaly +2 more sources
Post-fault modeling for dual three-phase permanent magnet synchronous motors (DTP-PMSMs) under the open-phase fault is presented in this article. By using the positive and negative sequence components for the dual three-phase system, the stator currents ...
Wenlong Li, Pengzhao Song, Ze Li
exaly +2 more sources
A Fast Positive Sequence Components Extraction Method With Noise Immunity in Unbalanced Grids
IEEE Transactions on Power Electronics, 2020Fast and accurate acquisition of voltage components is the basic requirement for grid-tied inverters to realize various control under unbalanced grids.
Liwei Du, Mingxian Li, Liansong Xiong
exaly +2 more sources
International Journal of Electrical Power and Energy Systems, 2018
Based on distribution characteristics of the zero-sequence voltages and currents of the distributed lines, this paper proposes a novel single-phase-to-earth fault (SPTEF) location scheme for distribution network.
Firuz Zare
exaly +2 more sources
Based on distribution characteristics of the zero-sequence voltages and currents of the distributed lines, this paper proposes a novel single-phase-to-earth fault (SPTEF) location scheme for distribution network.
Firuz Zare
exaly +2 more sources
IEEE Journal of Emerging and Selected Topics in Power Electronics
The positive and negative sequence components of the line current are coupled with each other in unbalanced grid conditions. It raises a problem of sequence components extraction (SCE) for the line current.
Tianqi Liu +2 more
exaly +2 more sources
The positive and negative sequence components of the line current are coupled with each other in unbalanced grid conditions. It raises a problem of sequence components extraction (SCE) for the line current.
Tianqi Liu +2 more
exaly +2 more sources
IEEE Power & Energy Society General Meeting, 2020
This paper focuses on the control of Modular Multilevel Converters (MMC) for High Voltage DC (HVDC) applications during unbalanced AC grid voltage sags where positive and negative sequence voltages are equal. The control scheme is based on six arm energy
E. Prieto‐Araujo +3 more
semanticscholar +1 more source
This paper focuses on the control of Modular Multilevel Converters (MMC) for High Voltage DC (HVDC) applications during unbalanced AC grid voltage sags where positive and negative sequence voltages are equal. The control scheme is based on six arm energy
E. Prieto‐Araujo +3 more
semanticscholar +1 more source