Design and Test of Slender Salient Pole Hybrid Excitation Generator for While Drilling

2022 ◽  
Author(s):  
Lezhi Ye ◽  
Xuanjie Song ◽  
Zhao Chen
Keyword(s):  
Excitation Generator ◽  
Salient Pole ◽  
Hybrid Excitation

Finite Element Analysis and Experimental Study for MWD Hybrid Excitation Generator

2013 ◽  
Vol 313-314 ◽  
pp. 7-10
Author(s):  
Xiao Du ◽  
De Sheng Li ◽  
En Huai Lin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Magnetic Flux ◽  
Excitation Current ◽  
Element Analysis ◽  
Excitation Generator ◽  
Hybrid Excitation ◽  
Characteristics Analysis ◽  
New Type ◽  
Working Principle

To obtain the stable output voltage, a new type of MWD hybrid excitation generator is designed in which magnetic flux can be regulated from -2% to 22%. In the generator, hybrid excitation part and permanent magnet part work in parallel. This article introduces the working principle and structure of this generator. In addition, finite element analysis, magnetic field and regulation characteristics analysis for this generator is addressed to illustrate the variation of magnetic flux with pole length and excitation current changing. Experiments verify the design and finite element analyses.

scholarly journals Development of Brushless Claw Pole Electrical Excitation and Combined Permanent Magnet Hybrid Excitation Generator for Vehicles

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4723 ◽  
Author(s):  
Huihui Geng ◽  
Xueyi Zhang ◽  
Yufeng Zhang ◽  
Wenjing Hu ◽  
Yulong Lei ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Permanent Magnet ◽  
Output Voltage ◽  
High Efficiency ◽  
Voltage Regulation ◽  
Electrical Excitation ◽  
Excitation Generator ◽  
Finite Element Software ◽  
Wide Range ◽  
Hybrid Excitation

Aiming at the problems of large excitation loss and low power generation efficiency of silicon rectifier generators and the unstable output voltage of permanent magnet (PM) generators, a hybrid excitation generator (HEG) with suspended brushless claw pole electrical excitation rotor (EER) and combined magnetic pole PM rotor is proposed in the present work. With only one fractional slot winding stator, the generator adopts PM field as the main magnetic field and electrical excitation field as the auxiliary magnetic field, which not only retains the advantages of high efficiency of PM generators but also effectively reduces excitation consumption. The main structure parameters and the design method were analyzed, and a simulation analysis of no-load magnetic field distribution and flux regulation ability was carried out using finite element software to verify the rationality of the hybrid excitation parallel magnetic circuit design. Moreover, the no-load, load, regulation, and voltage regulation characteristics of the designed generator were tested, and the results show that the designed generator has a wide range of voltage regulation, which can ensure stable output voltage under variable speed and load conditions.

scholarly journals An Asymmetric-primary Axis-flux Hybrid-excitation Generator for the Vertical Axis Wind Turbine

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Jing Liu ◽  
Qiang Zhang ◽  
Runbo Zhang ◽  
Jilong Hu ◽  
Lijun Zhang ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Vertical Axis ◽  
Vertical Axis Wind Turbine ◽  
Excitation Generator ◽  
Hybrid Excitation ◽  
Primary Axis
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