Browsing Electrical Engineering by Author "Wang, S."
Now showing items 1-5 of 5
-
A Neutral-Point Diode-Clamped Converter with Inherent Voltage-Boosting for a Four-Phase SRM Drive
Abdel-Aziz, A. A.; Ahmed, K. H.; Wang, S.; Massoud, Ahmed; Williams, B.W. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)This article proposes a new asymmetric neutral-point diode-clamped (NPC) multilevel converter for a four-phase switched reluctance motor drive. The inbuilt NPC clamping capacitors are used for both voltage level clamping ... -
A Novel Converter Station Structure for Improving Multiterminal HVDC System Resiliency Against AC and DC Faults
Wang, S.; Ahmed, K.H.; Adam, G.P.; Massoud, Ahmed; Williams, B. W. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In an effort to minimize the power disruption between a dc grid and ac grids that host power converters during ac and dc network faults, this paper proposes a novel converter station structure to improve ac and dc fault ... -
A T-Type Modular Multilevel Converter
Wang, S.; Massoud, Ahmed; Williams, B.W. ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)This article proposes a novel modular multilevel converter (MMC) named 'T-type MMC' (T-MMC) for reliable, controllable, and efficient performance in energy conversion applications. Circuitry configurations and control ... -
Analysis and Assessment of Modular Multilevel Converter Internal Control Schemes
Wang, S.; Adam, G.P.; Massoud, Ahmed; Holliday, D.; Williams, B. W. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Adoption of distributed submodule (SM) capacitors in a modular multilevel converter (MMC) necessitates complex controllers to ensure the stability of its internal dynamics. This paper presents comprehensive analysis and ... -
Strategies for Decoupling Internal and External Dynamics Resulting from Inter-Arm Passive Component Tolerances in HVDC-MMC
Wang S.; Adam G.; Massoud A.; Holliday D.; Williams B. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Modular Multilevel Converter (MMC) performance may be adversely affected by passive component tolerances, such as submodule capacitance and arm inductance variations. Depending on control strategies, the differences in ...