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Printed electronics based on nanomaterial has been a potential alternative to conventional electronic technology and is favorable to polymer material. However, printed circuit has insufficient electrical performance and mechanical reliability. We designed two kinds of Ag hybrid pastes to overcome obstacles of printed electronics. One is Ag nanoparticle (30-50 nm) mixed with Ag nanowire (aspect ratio...
Recently, fault diagnosis is becoming more important due to the increasing demand of using permanent magnet synchronous machines (PMSMs). In particular, inter-turn short fault (ISF) is one of the most frequent electrical faults in PMSMs. In this paper, we propose a method using negative sequence components (NSC). The NSC method not only calculates a fault indicator that is not easily affected by the...
We developed a robust state-of-charge (SOC) estimation algorithm which considers uncertainties of matrix including internal resistance for Li-Ion battery. We used a linear matrix inequality (LMI) to acquire gain of the observer for estimating SOC. The algorithm is less accurate than estimation results of other algorithms, but has simple and fast calculation by using a time-invariant observer gain...
In the steel industry, numerical modeling of electric arc furnaces (EAFs) is an important method to improve the power quality. However, the complicated nature of EAFs makes this process rather difficult. In this study, the complex behavior of an EAF is analyzed using chaos theory and neural network. According to the embedding theorem, if the embedding dimension and delay time are chosen properly,...
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