Steady-state simulation of different discharge modes of argon arc under external magnetic field

2019 ◽  
Vol 28 (12) ◽  
pp. 125001
Author(s):  
Tang Chen ◽  
Han-Qiao Che
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
External Magnetic Field ◽  
Steady State Simulation

Effects of External Magnetic Field on Intensity of Plasma Flow

2014 ◽  
Vol 597 ◽  
pp. 272-275
Author(s):  
Ching Yen Ho ◽  
Yu Hsiang Tsai ◽  
Chung Ma
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
External Magnetic Field ◽  
Plasma Flow ◽  
Intensity Distribution ◽  
Transverse Direction ◽  
Radial Direction ◽  
Intensity Profile ◽  
Intensity Enhancement

This paper investigates the intensity distribution along the radial direction for plasma flow subject to external magnetic Field. The toroidal external magnetism is applied in the transverse direction of plasma flow. Considering the steady-state continuity and momentum of the plasma flow subject to external magnetic field, the intensity profile of the plasma is obtained. The results quantitatively verify the intensity enhancement of the plasma with the increasing external magnetic field.

scholarly journals The Operation of UAV Propulsion Motors in the Presence of High External Magnetic Fields

Robotics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 79
Author(s):  
Mohammad Heggo ◽  
Anees Mohammed ◽  
Juan Melecio ◽  
Khristopher Kabbabe ◽  
Paul Tuohy ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
External Magnetic Field ◽  
Direct Torque Control ◽  
Torque Control ◽  
Stable Operation ◽  
Field Oriented Control ◽  
Inspection Robots ◽  
The Impact ◽  
State Error

The operation and maintenance of converter stations (also known as valve halls) in high voltage DC (HVDC) grids is a key element in long-term, reliable and stable operation, especially in inherently adverse offshore environments. However, the nature of the electromagnetic field environment inside HVDC valve halls presents a challenge for the operation of traditional off-shelf inspection robots. In this paper, the impact of the external magnetic field on the operation of an inspection UAV’s propulsion motors is assessed. An experimental method is proposed to simulate the maximum magnetic field interference to off-shelf UAV motors, which can be used to identify their suitability for use in HVDC valve halls inspection robots. The paper’s experimental results compare the performance of direct torque control and field-oriented control algorithms for propulsion motors under the influence of external magnetic flux. Under the influence of a 177 mT external magnetic field, it was found that using direct torque control, the motor rotational velocity steady-state error was up to 55%. With field-oriented control, the steady-state error was 0%, however the peak-to-peak current draw increased by up to 567%.

RECOIL IMPLANTATION MÖSSBAUER EXPERIMENT ON 57Fe IN Ge IN THE PRESENCE OF AN EXTERNAL MAGNETIC FIELD

1980 ◽  
Vol 41 (C1) ◽  
pp. C1-445-C1-445
Author(s):  
G. Langouche ◽  
N. S. Dixon ◽  
L. Gettner ◽  
S. S. Hanna
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Recoil Implantation
Sign in / Sign up

Export Citation Format

Share Document