Current controlled excitation based deperming protocol of naval vessels
- Resource Type
- Conference
- Authors
- Jain, Sonal; Singh, Ratan; Kharwandikar, Amit; Ahmed, Rizwan; Kazi, Faruk
- Source
- 2017 4th IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics (UPCON) Electrical, Computer and Electronics (UPCON), 2017 4th IEEE Uttar Pradesh Section International Conference on. :527-531 Oct, 2017
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Magnetic hysteresis
Analytical models
Magnetic fields
Earth
Magnetic flux
Underwater vehicles
Protocols
current excitation
deperming
FEM
magnetic field
naval vessels
- Language
Naval vessels acquire permanent magnetism due to continuous exposure of the earth's magnetic field. These vessels are periodically subjected to deperming process to reduce their permanent magnetism. In this process, the entire vessel is closely wrapped with copper wire in helical form and alternate linearly decreasing current is passed through the coil. However, the naval vessels show nonlinear reduction of magnetic flux density due to their ferromagnetic nature. The traditional method of linear excitation results in ineffective deperming process. In this paper, a deperming protocol is proposed using nonlinear excitation of current pattern. The analysis is done using finite element method in which trajectory following hysteretic model is used to show the effect of different current controlled pattern.