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A surface lumped circuit model is formulated for the discontinuous Galerkin time-domain modeling of devices with lumped elements. A leap-frog algorithm is used for time integration, resulting in an explicit and conditionally stable time-marching algorithm. A microstrip filter with four ports and two lumped elements is simulated to validate the proposed method.
Bi-directional inductive power transfer (BD-IPT) systems are suitable for applications such as wireless integration of Electric Vehicle (EV) with the utility grid. This paper presents a comprehensive study of the most widely used BD-IPT systems in EV applications - a series tuned inductor-capacitor (LC) type BD-IPT system. The system parameters used in the paper have been set according to SAE J2954...
In order to meet the demands of high efficiency and a wide adaptable range of input voltage, a DualOperation Mode half-bridge LLC converter which can operate in two different modes according to the level of input voltage is obtained by adjusting the driving control strategy of 3-level LLC resonant converter, and the adaptable range of input voltage is doubled with the same parameters of resonant tank...
As is known to all, an accurate on-line estimation of the battery capacity is important for forecasting the EV driving range. But because of the different driving environment and the property of the battery, it is hard to estimate the capacity of the battery pack. This paper presents an unscented Kalman filtering method to estimate the state of charge of LiFePO4 battery pack. Five comparison experiments...
With the rapid progress of electronic and information technology, body area network (BAN) has been widely used for biomedical monitoring systems using the human body as a transmission medium. In this paper, the effect of the type of arm models on electric field distribution and attenuation constant of on-body transmission have been investigated. In order to assess the sensitivities of the transmission...
As a important mechanical parameters for the vacuum circuit breaker, the contact bounce affects the electrical life of arc chamber. First, the mathematical model of contact bounce are established, the characteristics curve of contact bounce is obtained according to the mathematic model by using MATLAB. Secondly, the harm of contact bounce and the influence factors of contact bounce are analyzed. Finally,...
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