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The government of Japan assumes that a large portion of renewable energy in the near future will be provided by photovoltaic generation systems installed at end consumers. Thus, smart grids in Japan will be established mainly at the distribution and the end-consumer level of power systems. Considering this situation, the Smart Grid Working Group, created inside the Cooperative Study Group on Applications...
A whole-chip simulation methodology of the full ESD paths including the full-chip power and ground wiring network has been established, and successfully demonstrated on products with several hundreds of pins. By checking voltage stress across cross domain circuits itself, marginal cross domain ESD design window in sub-100nm SoCs can be extended.
This paper proposes a black box approach which synthesizes lumped circuit model of the Foster type for a frequency-dependent characteristic element by the least squares method systematically. However there are two numerical difficulties to model them. One is the numerical stability problem which comes from limitation of effective numerical digits of data especially for wide frequency band ranges....
Quick detection of a small initial fault is important for an AC motor drive system to prevent a consequent large fault. Papers for the detection have been proposed, for example, by the park vector (PV), the AI techniques, the wavelet analysis, and the negative sequence analysis approaches. This paper proposes a diagnostic method of a stator winding fault of an induction motor by combination of the...
This paper proposes a black box approach which synthesizes lumped circuit model of the Foster type for a frequency-dependent characteristic element by the least squares method systematically. However there are two numerical difficulties to model them. One is the numerical stability problem which comes from limitation of effective numerical digits of data especially for wide frequency band ranges....
It is often necessary to get steady-state waveforms of a power electronic circuit for its design or analysis. Direct steady-state analysis techniques have been researched for efficient simulation. The shooting method is one of these and it is often utilized. It is known that its multiple type form is numerically more stable than the usual single type one. Furthermore it is suitable for parallel processing...
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