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An Overmodulation Algorithm With Neutral-Point Voltage Balancing for Three-Level Converters in High-Speed Aerospace Drives
Faculty
Engineering
Year:
2022
Type of Publication:
ZU Hosted
Pages:
Authors:
Ahmed Mohamed Eltohamy Ahmed Dayab
Staff Zu Site
Abstract In Staff Site
Journal:
IEEE Transactions on Power Electronics IEEE
Volume:
Keywords :
, Overmodulation Algorithm With Neutral-Point Voltage Balancing
Abstract:
In this article, a virtual space vector based overmodulation algorithm is presented for three-level neutral-point (NP) clamped converters in high-speed aerospace motor drives. With the proposed inscribed polygonal-boundary compression technique, the output voltage capability is enhanced under a lower crossover angle and compression coefficient. As a result, it brings an opportunity for the operation of the studied aircraft electric starter/generator (ESG) systems easily extending from the linear modulation range into the overmodulation region. Furthermore, an active capacitor voltage balancing control method is investigated to recover NP potential imbalance in the case of high modulation index and low power factor operating conditions. To simplify the digital implementation of the algorithm, a fast calculation approach is adopted in this work. The modulation performance of the proposed strategy is verified by both simulation and experimental results with a 45 kW, 32 k r/min ESG prototype system.
Author Related Publications
Ahmed Mohamed Eltohamy Ahmed Dayab, "Steady State Modeling and ANFIS Based Analysis of Doubly-Fed Induction Generator", Menoufia University, Faculty of Engineering, 2015
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Ahmed Mohamed Eltohamy Ahmed Dayab, "Proposed control policy for stabilized DFIG energy transducer", IEEE, 2017
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Ahmed Mohamed Eltohamy Ahmed Dayab, "Proposed control policy for high power transfer capability DFIG", Elsevier, 2018
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Ahmed Mohamed Eltohamy Ahmed Dayab, "Performance Analysis of PMSM for High-Speed Starter-Generator System", IEEE, 2019
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Ahmed Mohamed Eltohamy Ahmed Dayab, "Stable and Robust Design of Active Disturbance-Rejection Current Controller for Permanent Magnet Machines in Transportation Systems", IEEE, 2020
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