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An online steady-state load identification method is proposed to solve the problems related to frequency drift, system robustness deterioration, difficulties in controller design due to the uncertainties in load and mutual inductance variations of an inductive power transfer (IPT) system. Take a Series-Series-type IPT system as an example, an additional capacitor is added into the system to make the...
The performance metrics are very important for performance evaluation and system design. In the literature, their analyses are given only when the traffic with classical exponential distribution under time invariant channels. In this paper, using multidimensional Markov model, we analyze the performance of heterogeneous wireless networks with heavy tail traffic under the time variant channels. Some...
Network pricing is considered to be one of the effective ways to guide future demand and generation connection in distribution networks so as to encourage more efficient network usage and guide optimal development. Presently, the Distribution Reinforce Model (DRM) is utilized for High Voltage (HV) and/or Low Voltage (LV) distribution network pricing in the UK. The shortcoming with the model is that...
This paper analyzed the mathematical model of permanent magnet synchronous motor (PMSM), which is used as the propulsion motor in ship electric propulsion systems. Aiming at the problems of bang-bang direct torque control (DTC) applied to PMSM, such as the singularity of basic voltage space vectors available for selecting, large torque ripple and inconstant inverter switching frequency, a novel control...
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