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Sheng Zhang, Yuguang Bai, Youwei Zhang and Dan Zhao
Hypersonic vehicles or engines usually employ complex thermal protecting shells. This sometimes brings multi-physics difficulties, e.g., thermal-aeroelastic problems like panel flutter etc. This paper aims to propose a novel optimization method versus th...
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Thobani Ntshiqa, Alfred Musekiwa, Riyadh Manesen, Hetani Mdose, Nqobile Ngoma, Lazarus Kuonza, Thomas Dlamini, Carl Reddy and Seymour Williams
Male circumcision (MC) reduces HIV transmission risk by up to 60% in heterosexual men. However, uptake of medical male circumcision (MMC) is low in traditionally circumcising communities of South Africa. We assessed knowledge, attitudes, and practices to...
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Philippe Rosset, Adil Takahashi and Luc Chouinard
The metropolitan community of Montreal (MMC) is located in Eastern Canada and included in the western Quebec seismic zone characterized by shallow crustal earthquakes and moderate seismicity. Most of the urbanized areas are settled close to the Saint-Law...
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Yu Gu, Guoxin Zhang, Ying Bi, Wenyue Meng, Xiaoping Ma and Wenjun Ni
Moving mass control (MMC) is considered a promising approach to regulating the attitude of an aircraft via the motion of internal moving masses. The present investigation proposes a moving mass control scheme for a high-altitude long-endurance (HALE) unm...
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VENU MADHAV GOPALA, T. Anil Kumar, D. Krishna, Ch. Srinivasa Rao, Shashank Kumar, Sudipto Poddar
Pág. 102 - 119
In this paper, Rapid Control Prototyping (RCP) of five-level Modular Multilevel Converter (MMC) based Induction Motor (IM) drive performance is observed with different switching frequencies. The Semikron based MMC Stacks with two half-bridge each are tes...
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Marwan Rosyadi, Atsushi Umemura, Rion Takahashi and Junji Tamura
In this paper, a detailed model and an average model of an MMC (Modular Multilevel Converter)-controlled Permanent Magnet Synchronous Generator (PMSG)-based direct drive wind turbine are proposed. The models are used to analyze the steady-state and trans...
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Feng Xu, Xiaoming Huang, Yi Lu and Zheren Zhang
This paper focuses on the soft normally open point (SNOP) which has no transformers and connects to the 10 kV distribution network through the arc suppression coil grounding mode. A mathematical model containing positive-, negative-, and zero-sequence co...
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Kanhu C. Nayak, Kedarnath K. Rane, Prashant P. Date and T. S. Srivatsan
Powder metallurgy-based metal matrix composites (MMCs) are widely chosen and used for the development of components in the fields spanning aerospace, automotive and even electronic components. Engineered MMCs are known to offer a high strength-to-weight ...
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Celso Aleixo Pinto, Rui Taborda, César Andrade, Paulo Baptista, Paulo Alves Silva, Diogo Mendes and Joaquim Pais-Barbosa
Current coastal protection strategy in Portugal defines beach and shoreface nourishment as a valid measure to mitigate coastal erosion in some erosional hot-spots, being considered as an adaptation measure under the present climate change scenario, inclu...
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Hui Cai, Junli Zhang, Jingqiu Yu and Zheren Zhang
DC short-circuit faults are one of the challenges for modular multilevel converter (MMC) based DC grid. It is vital for proper design of protection system to estimate the fault currents and voltages. The existing calculation methods based on RLC equivale...
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