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This study presents the design of subsidence monitoring system for industrial machine alignment based on magnetic field method. The system was developed to demonstrate the level of land subsidence in the area of the industrial machine located. A computer was used to collect the data and to display the angles of subsidence over operation period. The measurement module consists of two thin-and-curve...
To solve the low efficiency of electric excitation claw-pole synchronous generator (EECSG) and the challenges to regulate the magnetic field of permanent magnet (PM) claw-pole synchronous generator, a novel hybrid excitation claw-pole synchronous generator (HCPSG) with magnetic circuit series connection was proposed in this paper. Through the simulative study to the generator using the calculation...
This paper presents the parameter computation and performance prediction of a permanent magnet (PM) synchronous generator based on numerical magnetic field analyses. The finite element method is employed to accurately determine the magnetic field distribution and key parameters of the machine, such as the winding flux, back electromotive force, winding inductance and core loss. An equivalent electrical...
Jinfeng 62(1.2MW) permanent magnet synchronous generator (PMSG) two dimensional (2D) model constituted according to a pair of magnet pole area. Basic hypothesis and boundary condition presented. Abrupt three-phase short circuit current was calculated, including diversified electromagnetic field and electromagnetic force that exert on PM when generator operates normally and fault happened. The effect...
Study on dual-rotor generator technology can promote the wind power industry since it has compact structure and higher performances. This paper proposes a novel dual-rotor permanent-magnet synchronous wind-driven generator which can apparently improve the utilization coefficient of wind energy, and then introduces its operation principle, structure and design. After that, the magnetic field of the...
Generator rotor and stator vibration characteristics on stator winding inter-turn short circuit fault are analyzed. Through calculating the generator parameters of air-gap magnetomotive force, air-gap magnetic field energy and magnetic flux density on the fault, the frequency characteristic of imbalance magnetic pull acting on rotor and that of pulsating magnetic pull acting on stator core are found...
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