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In high voltage direct current (HVDC) transmission system, modular multilevel converter (MMC) is not satisfactory to maintain the balance of the capacitor voltage and doesn’t have the DC side fault ride-through capability. This paper presents that the MMC bridge arm consisting of half bridge module and clamping double sub module in series can reduce the loss of steady state operation and the amount...
With emergence of EGS, many self-service logistics activities are being outsourced to E-Grocers by traditional grocery shoppers, which results in a difficulty to complete consumer logistics. Therefore, this study, first of all, analyses the difficulty of Consumer Logistics outsourcing, then explained based on theoretical framework of principal-agent theory, and a mathematical model of incentive contract...
As grocery shopping shifted from traditional to online environment, consumer logistics that shoppers once completed by themselves has been undertaken by E-Grocers(Online Grocers). Consequently the principal-agent relationship is built between online shoppers and E-Grocers due to the information asymmetry. The Principal-Agent Problem in this context was identified and explained by using the principal-agent...
Even with advantages of fastness, convenience, time saving and low price, whether E-Grocery Shopping (EGS) is accepted by consumers is mostly determined by its efficient logistics service provided for customers taking into consideration groceries' characteristics such as perishability, idiosyncrasy and intensive experience. The rigorous definition of Consumer Logistics was given and the motivations...
This paper presents a novel active power filter for high-capacity hybrid active power filter (HHAPF) to compensate harmonics and reactive power required by nonlinear loads. If the utility voltage is distorted, APF allows similar level of distortion in the compensated source current. In this paper, the APF system combine serial resonant injected active power filter and passive power filter together,...
It is a well-known fact that load representation can have a significant impact on voltage stability. Accurate load models capturing load behaviors during dynamics are therefore necessary to allow more precise calculations of power system controls and stability limits. Recently artificial neural network (ANN) techniques have been widely used in power system simulation analysis. This paper deals with...
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