Investigation on large turbo-generator stator end winding dynamic characteristics based on response surface method
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Power Electronics"
DOI: 10.1007/s43236-021-00296-8
Abstract: The natural frequencies corresponding to the particular mode shapes of a large turbo-generator must not be in the resonance region before delivery. Different parameters may clearly affect these dynamic characteristics. Different from other studies, this… read more here.
Keywords: response; end winding; response surface; method ... See more keywords
A generalized open-end winding conversion system using flying capacitor cells
Sign Up to like & getrecommendations! Published in 2019 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2018.12.024
Abstract: Abstract Over the years, industrial processes, renewable energy systems and electrification of transport systems have been pushing power electronics equipment towards higher power ratings, quality and faster dynamics. In this context, several multilevel converter structures… read more here.
Keywords: capacitor; flying capacitor; open end; end winding ... See more keywords
Dual Solar Photovoltaic Fed Three-Phase Open-End Winding Induction Motor Drive for Water Pumping System Application
Sign Up to like & getrecommendations! Published in 2018 at "Electric Power Components and Systems"
DOI: 10.1080/15325008.2018.1520324
Abstract: Abstract The distributed maximum power point tracking (DMPPT) technique is employed in most of the photovoltaic (PV) systems to achieve better conversion efficiency. There exist two basic structures to implement DMPPT technique. The first one… read more here.
Keywords: system; end winding; open end; pumping system ... See more keywords
Improved methods for stator end winding leakage inductance calculation
Sign Up to like & getrecommendations! Published in 2023 at "COMPEL - The international journal for computation and mathematics in electrical and electronic engineering"
DOI: 10.1108/compel-09-2022-0330
Abstract: Purpose Calculating the stator end-winding leakage inductance, taking into account the rotor, is difficult due to the irregular shape of the end-winding. The end-winding leakage may distribute at the end of the active part and… read more here.
Keywords: winding leakage; end winding; leakage inductance;
Reference Voltage Self-Equalization-Based Modulation Strategy for Open-End Winding PMSM Fed by Dual Three-Level Inverters With Common DC Bus
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"
DOI: 10.1109/jestpe.2021.3069351
Abstract: For the open-end winding permanent magnet synchronous motor (OEW-PMSM) fed by dual three-level inverters with a common dc bus, it is necessary to balance the neutral point (NP) voltage and suppress the zero-sequence current to… read more here.
Keywords: fed dual; open end; voltage; end winding ... See more keywords
A Rectangular End-Winding Model for Enhanced Circulating Current Prediction in AC Machines
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Energy Conversion"
DOI: 10.1109/tec.2020.3009345
Abstract: The end-winding region is usually overlooked in the roebel design of large AC machines. However, saturated stator slots cause overhang parts to impact the circulating currents significantly. In fact, a precise knowledge of the winding… read more here.
Keywords: winding model; end winding; model; rectangular end ... See more keywords
Coupled Electromagnetic-Fluid-Thermal Analysis for End Zone With Electric Screen in Large Water-Hydrogen-Hydrogen Cooled Turbine Generator Under Different End Winding Extensions
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Energy Conversion"
DOI: 10.1109/tec.2021.3061683
Abstract: Extension lengths of the stator and rotor end windings will obviously affect the electromagnetic field, fluid flow, and temperature of end components in the end zone of large water-hydrogen-hydrogen cooled turbine generator. In this paper,… read more here.
Keywords: turbine generator; end; end zone; hydrogen ... See more keywords
An Accurate Torque Output Method for Open-End Winding Permanent Magnet Synchronous Motors Drives
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Energy Conversion"
DOI: 10.1109/tec.2021.3083958
Abstract: To improve the torque accuracy for open-end winding permanent magnet synchronous motor (OEW-PMSM) with common dc bus, it is necessary to eliminate the zero-sequence torque (ZST) caused by zero-sequence current (ZSC) and the third back… read more here.
Keywords: open end; dpcc; end winding; winding permanent ... See more keywords
Cascaded Open-End Winding Transformer Based DVR
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Industry Applications"
DOI: 10.1109/tia.2017.2768531
Abstract: This paper introduces and generalizes a class of multilevel dynamic voltage restorer (DVR) for voltage sags/swells compensation of high-power sensitive loads. Such a device can improve the power quality of sensitive loads located in stiff… read more here.
Keywords: cascaded open; voltage; end winding; open end ... See more keywords
Torque Ripple Suppression for Open-End Winding Permanent-Magnet Synchronous Machine Drives With Predictive Current Control
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2019.2907506
Abstract: In order to suppress the torque ripple of an open-end winding permanent-magnet synchronous machine (OEW-PMSM), a q-axis current injection method is typically employed but the disturbances caused by the third flux linkage parameter mismatch can… read more here.
Keywords: open end; control; end winding; torque ripple ... See more keywords
A Stacked Multilevel Inverter With Single DC Link for Open-End Winding Induction Motor Drive With Zero-Voltage Switching and Common-Mode Voltage Elimination
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2021.3127033
Abstract: A switching-state selection scheme for a five-level stacked multilevel inverter for open-end winding motor drive is presented in this article. Using the proposed scheme, converter can be operated with a single dc supply and with… read more here.
Keywords: topology; open end; end winding; voltage ... See more keywords