Electromagnetic Energy Conversion Efficiency Enhancement of Switched Reluctance Motors With Zero-Voltage Loop Current Commutation

2013 ◽  
Vol 28 (3) ◽  
pp. 482-492 ◽  
Author(s):  
W. U. Nuwantha Fernando ◽  
Mike Barnes
Keyword(s):  
Energy Conversion ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Electromagnetic Energy ◽  
Loop Current ◽  
Efficiency Enhancement ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Current Commutation ◽  
Zero Voltage

Shrink induced nanostructures for energy conversion efficiency enhancement in photovoltaic devices

2013 ◽  
Vol 103 (2) ◽  
pp. 023104 ◽  
Author(s):  
Bo Zhang ◽  
Min Zhang ◽  
Keping Song ◽  
Qiao Li ◽  
Tianhong Cui
Keyword(s):  
Energy Conversion ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Efficiency Enhancement ◽  
Photovoltaic Devices

scholarly journals Investigation on Electromagnetic Models of High-Speed Solenoid Valve for Common Rail Injector

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Jianhui Zhao ◽  
Liyun Fan ◽  
Peng Liu ◽  
Leonid Grekhov ◽  
Xiuzhen Ma ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Magnetic Materials ◽  
Conversion Efficiency ◽  
High Speed ◽  
Energy Conversion Efficiency ◽  
Solenoid Valve ◽  
Electromagnetic Energy ◽  
Soft Magnetic Materials ◽  
Soft Magnetic ◽  
Drive Current

A novel formula easily applied with high precision is proposed in this paper to fit the B-H curve of soft magnetic materials, and it is validated by comparison with predicted and experimental results. It can accurately describe the nonlinear magnetization process and magnetic saturation characteristics of soft magnetic materials. Based on the electromagnetic transient coupling principle, an electromagnetic mathematical model of a high-speed solenoid valve (HSV) is developed in Fortran language that takes the saturation phenomena of the electromagnetic force into consideration. The accuracy of the model is validated by the comparison of the simulated and experimental static electromagnetic forces. Through experiment, it is concluded that the increase of the drive current is conducive to improving the electromagnetic energy conversion efficiency of the HSV at a low drive current, but it has little effect at a high drive current. Through simulation, it is discovered that the electromagnetic energy conversion characteristics of the HSV are affected by the drive current and the total reluctance, consisting of the gap reluctance and the reluctance of the iron core and armature soft magnetic materials. These two influence factors, within the scope of the different drive currents, have different contribution rates to the electromagnetic energy conversion efficiency.

First-principles study on the electronic and optical properties of the orthorhombic CsPbBr3 and CsPbI3 with Cmcm space group

2021 ◽  
Author(s):  
Xianhao Zhao ◽  
Tianyu Tang ◽  
Quan Xie ◽  
like gao ◽  
Limin Lu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
First Principles ◽  
Energy Conversion Efficiency ◽  
Space Group ◽  
Absorbing Materials ◽  
Halide Perovskites ◽  
Lead Halide

The cesium lead halide perovskites are regarded as effective candidates for light-absorbing materials in solar cells, which have shown excellent performances in experiments such as promising energy conversion efficiency. In...

Metal-like electrical conductivity in LaxSr2−xTiMoO6 oxides for high temperature thermoelectric power generation

2017 ◽  
Vol 46 (18) ◽  
pp. 5872-5879 ◽  
Author(s):  
Mandvi Saxena ◽  
Tanmoy Maiti
Keyword(s):  
Power Generation ◽  
Electrical Conductivity ◽  
High Temperature ◽  
Energy Conversion ◽  
Thermoelectric Power ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Power Generators ◽  
Thermoelectric Power Generation

Increasing electrical conductivity in oxides, which are inherently insulators, can be a potential route in developing oxide-based thermoelectric power generators with higher energy conversion efficiency.

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