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With rapid increase of wind power installed capacity, the operation mode of power system has changed greatly, it is necessary to include modeling and simulation based on wind turbines and farms. Numerical simulation plays a unique role in power system operation and control, and its accuracy turns out to be the focus of electric industry. PSASP and PSS/E, as two main sorts of simulation analysis software...
Coupling of multi physical parameters in extra high voltage SF6 circuit breaker (EHV SF6 CB) has been investigated. A 2D combined mathematical model of electric field, flow field and k - ?? turbulent flow was developed, and the coupling condition of multi physical field of CB was established. And the computation has been carried out for a 500 kV 1-break SF6 CB. The multi physical parameters and the...
The ANSOFT software and its applation to electrical fields simulation were briefly introduced. In combination with forced-air cooling isolated-phase bus (IPB), the numerical simulation of electrical fields inside IPB was given. The simulation results indicate that the structure inside IPB mainly influence on the electrical field distribution. Based on numerical simulation analysis of ANSOFT, it is...
A 3D electric field mathematical model of the arc-quenching chamber in an 800 kV 2-break extra high voltage SF6 circuit breaker (EHV SF6 CB) has been established and the finite element method (FEM) has been applied to calculate the electric field in the arc-quenching chamber. In computing, multi-dielectrics (such as: air, porcelain casing, PTFE nozzle, SF6 gas) have been taken into consideration....
In this paper, the axial magnetic field of vacuum interrupter (VI) has been computed. Moreover, the static, transient magnetic field and 3D electric field have been analyzed using finite element method (FEM). The dynamic distributions of the axial magnetic field along the contact surface varying with interrupting instant and space have been simulated. Accordingly, the influence of the contact structure...
A novel model of permanent magnetic double-phase linear stepper motor has been presented and the numerical computation model of magnetic field for the linear stepper motor has been established. Moreover, the dynamic variations of magnetic field varying with the current cycle during the whole moving process have been numerically simulated using the finite element method. Furthermore, influences of...
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