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With the rise of smart grids in distribution level, the new service of automatic network reconfiguration is established. Consequently, the power system topology may experience multiple changes during any day of operation. However, many services and applications require for reliable operation knowledge about the actual topology state which is provided by network control center. Even in case of communication...
The gravity model of WGS84 is commonly used in the calculation of gravitational acceleration known as normal gravity vector, but it cannot meet the requirements for high-precision inertial navigation systems because of the gravity anomaly. In this paper, the effects of gravity vertical deviation on navigation accuracy are analyzed and the principle of compensation is studied based on vertical deviation...
Taking a tailings dam in Hebei as the research object, the dynamic response of the dam under action of flood and earthquake is simulated by using a finite element software, and the seismic dynamic response of the dam with respect to acceleration, stress, displacement, liquefaction area and stability are analysed. The results show that, the vertical acceleration increases with the height of the dam,...
Two integrated passive device (IPD) structures are proposed in this paper. The first structure is a differential symmetrical through-silicon via (TSV) monolithic transformer that exhibited optimal symmetry between the two ends of the primary and secondary coils, enabling the operation of a differential circuit. The second structure is a fully 3-D symmetrical TSV monolithic transformer that differs...
Polycrystalline silicon has attracted our interest for their applications. Its electrical characteristics are closely correlated to the crystalline structure after electrical activation. The parameters related to crystalline structure are strongly influenced by implant and annealing techniques. We investigate the influence and sensitivity of implant / annealing / microstructure / mobility on sheet...
Continuation power flow is a powerful tool to simulate power system steady-state stationary behaviours with respect to a given power injection variation scenario. Although continuation power flow methods have been implemented in several commercial packages, they may be still too slow for online applications. The authors aim to improve the continuation power flow methods, mainly their speed and, to...
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