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Supplier selection is a challenging decision that has strategic importance for organizations. Cost is no longer the sole factor in the selection of suppliers, and the complexity of this issue arises from the interplay of several situation-specific criteria (such as total cost, CO2e emissions, development time, lead time) as well as the combinatorial nature of this problem. This paper proposes an approach...
We have developed the HiSIM-SOI model which is a complete surface-potential-based compact model valid for any structural variations of SOI-MOSFETs. This work focuses on how to calculate the three surface-potential values at the FOX/SOI-layer surface, the SOI-layer/BOX surface, and the BOX/substrate surface. The Newton iteration with three variables is investigated. With good initial guesses of the...
This paper propose a new current control system for IPMSM to reduce harmonic currents caused by the overmoduration and a non-sinusoidal magnetic flux distribution on the rotor. The harmonic currents have problems with making a current control system of IPMSMs unstable easily. The proposed current control system has two current controllers. One of them controls fundamental current to satisfy the required...
This paper presents a new method for multi-objective optimal allocation of step voltage regulators (SVRs) in distribution systems. In recent years, deregulated and competitive power markets bring about complicated distribution network configurations. As a result, it is difficult to smooth distribution network operation and planning. In this paper, a method for determining the optimal allocation of...
This paper proposes an efficient multi-objective memetic algorithm for distribution network expansion planning (DNEP). It may be expressed as a complex multi-objective optimization problem as well as combinatorial optimization one. Recently, deregulated and competitive power markets brought about the uncertainty of distribution systems. There are correlations between the nodal specific values. A Monte-Carlo-simulation-based...
This paper proposes a meta-heuristic method for probabilistic distribution network expansion planning (DNEP). It has been studied for a long time, but recently system planners are faced with uncertainty under competitive power systems. A more flexible method is required to deal with the complicated distribution systems. This paper considers the uncertainty of the nodal specified values and multi-objective...
This article presents a method for setting the smoothing constant in the exponential smoothing. In a practical situation of the trend estimation, the smoothing constant is set relying on an analyst's background. We propose an adaptive setting method of the smoothing constant by solving the problem of tuning the gain of the Kalman filter.
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