Winding loss calculation revisited for medium-frequency transformer in applications of dc generation of new energy

2019 ◽  
Author(s):  
Xiang Yu ◽  
Jianhui Su ◽  
Jidong Lai
Keyword(s):  
Medium Frequency ◽  
Loss Calculation ◽  
New Energy ◽  
Winding Loss

scholarly journals Investigation of Core Loss Calculation Methods for Nanocrystalline Core in Medium Frequency Range

2020 ◽  
Vol 117 (6) ◽  
pp. 429-438
Author(s):  
Yunxiang Guo ◽  
Cheng Lu ◽  
Feng Yu ◽  
Liang Hua ◽  
Xinsong Zhang
Keyword(s):  
Core Loss ◽  
Frequency Range ◽  
Calculation Methods ◽  
Medium Frequency ◽  
Loss Calculation ◽  
Medium Frequency Range

scholarly journals An Energy Loss Calculating Method for Wind Power System Based on the Shape Factor

2018 ◽  
Vol 160 ◽  
pp. 03007
Author(s):  
Bo Ruan ◽  
Junjie Qian ◽  
Dahai You ◽  
Tingting Hou ◽  
Xi Chen ◽  
...  
Keyword(s):  
Power System ◽  
Energy Loss ◽  
Wind Power ◽  
Shape Factor ◽  
Power Loss ◽  
Large Scale ◽  
Calculating Method ◽  
Loss Calculation ◽  
New Energy ◽  
Wind Power System

The large-scale access of the new energy makes various changes to the power system characteristics. For example, the acute volatility of the new energy such as wind power and photovoltaic energy makes the power-loss-calculation for the system more complex. The traditional typical daily method is inaccurate when used in new energy system because of its overlook of the generator output volatility. This paper proposes a new power-loss-calculation method for wind power system which based on the shape factor and gain a more accurate result. On the basis of this new calculating method, finds that the shape factor of the wind power plant for an hour period usually falls in a certain range. Therefore, proposes to directly use the expectation of shape factor in whole year to compute the annual energy loss with at least two values and once power flow calculation. And the acceptable relative error proves its large engineering practicability.

scholarly journals Analytical Winding Power Loss Calculation in Gapped Magnetic Components

Electronics ◽  
2021 ◽  
Vol 10 (14) ◽  
pp. 1683
Author(s):  
Fermín A. Holguín ◽  
Roberto Prieto ◽  
Rafael Asensi ◽  
José A. Cobos
Keyword(s):  
Analytical Calculation ◽  
Analytical Models ◽  
Finite Elements Analysis ◽  
Design And Optimization ◽  
Design Time ◽  
Loss Calculation ◽  
Magnetic Components ◽  
Winding Loss ◽  
Equivalent Method ◽  
Analytical Approaches

The analytical calculation of winding loss in gapped magnetic components is complex, and numerical analysis tools, such as finite elements analysis (FEA) tools, are commonly needed to characterize the windings. As FEA tools are used, the required design time of these types of components increases greatly when many simulations are needed to select the appropriate component for a given application, and simple analytical models become necessary to reduce the design time. In this paper, some analytical approaches for winding loss calculation in gapped magnetic components are reviewed and a general two-dimensional equivalent method, which aims to consider the frequency effects in conductors in a simplified manner, is proposed afterward. Due to its simplicity, it can be integrated into design and optimization tools in order to evaluate the influence of the air gap over the winding loss even at the early stages of the design process. The presented model shows good agreement with FEA simulations and measurements.

Comparative Study on Development Paths of Sino-German New Energy Buses

CICTP 2019 ◽  
2019 ◽  
Author(s):  
Xueran Wang ◽  
Mo Zhang ◽  
Wenfeng Liu ◽  
Chuna Wu
Keyword(s):  
Comparative Study ◽  
New Energy ◽  
Development Paths
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