Zobrazeno 1 - 10
of 379
pro vyhledávání: '"Siu Lau Ho"'
Publikováno v:
IET Power Electronics, Vol 15, Iss 9, Pp 815-824 (2022)
Abstract The shoot‐through (ST) states are essential for the operation of sinusoidal pulse‐width‐modulation (SPWM) based Z‐source inverters. However, the insertion of shoot‐through state unavoidably leads to output harmonics which is greatl
Externí odkaz:
https://doaj.org/article/cd97a17288aa47a88622543d6137a64a
Publikováno v:
IEEE Access, Vol 8, Pp 126637-126647 (2020)
Traditional speed control of permanent magnet synchronous motors (PMSMs) includes a cascaded speed loop with proportional-integral (PI) regulators. The output of this outer speed loop, i.e. electromagnetic torque reference, is in turn fed to either t
Externí odkaz:
https://doaj.org/article/f425e02c84db422dbf009c072c1b2aee
Publikováno v:
Applied Sciences, Vol 10, Iss 18, p 6186 (2020)
The memetic algorithms which employ population information spreading mechanism have shown great potentials in solving complex three-dimensional black-box problems. In this paper, a newly developed memetic meta-heuristic optimization method, known as
Externí odkaz:
https://doaj.org/article/a6b1e83eeeda49f686c3c8e49c985342
Publikováno v:
Energies, Vol 10, Iss 10, p 1532 (2017)
Phase-shifted converters are practically important to provide high conversion efficiencies through soft-switching techniques. However, the limitation on a resonant inductor current in the converters often leads to a non-fulfillment of the requirement
Externí odkaz:
https://doaj.org/article/87301d7b8c714a6b8cb2ff353cf83c44
Publikováno v:
International Journal of Applied Electromagnetics and Mechanics. 64:377-384
Metamaterial is an artificial material with unique material properties that cannot be found in a naturally existing one, and hence it is able to perform functions that a conventional material cannot do. Consequently, it has shown great potential in v
Publikováno v:
IEEE Transactions on Transportation Electrification. 6:464-477
Three-phase $Z$ -source inverters provide a solution of voltage boosting by a single-stage topology. They are also capable of bidirectional operation as rectifiers, thus have great potential for applications in the field of transportation electrifica
3-D Transient Magneto-Thermal Field Analysis Using Adaptive Degrees-of-Freedom Finite-Element Method
Publikováno v:
IEEE Transactions on Magnetics. 56:1-4
Publikováno v:
IEEE Access, Vol 8, Pp 82700-82708 (2020)
Wireless power transmission (WPT) technique has advanced rapidly in the past two decades. For wireless power transmission distances from 40 to 200 mm, the resonance coupling WPT (R-WPT) technique has surpassed its original inductive coupling counterp
Publikováno v:
Electrical Engineering. 102:321-329
To alleviate the adverse impact due to the deterioration of electrical insulation, this paper presents an electromagnetic-thermal-fluid analysis for the prediction of temperature distribution in transformers with oil-based nanofluids or pure oil. The
Autor:
Yunpeng Zhang, Wanjun Deng, Guizhi Xu, Xinsheng Yang, Siu Lau Ho, Weinong Fu, Qingxin Yang, Dexue Peng
Publikováno v:
Electrical Engineering. 101:507-516
A novel adjustable degrees-of-freedom numerical method for computing the temperature distribution of electrical devices is presented. The proposed method provides a convenient, accurate and efficient approach to increase/reduce variables and couple/d