Mass customization relates to the ability of providing individually designed products or services to customer with high process flexibility or integration.Literatures on mass customization have been focused on mechani...Mass customization relates to the ability of providing individually designed products or services to customer with high process flexibility or integration.Literatures on mass customization have been focused on mechanism of MC,but little on cus- tomer order decoupling point selection.The aim of this paper is to present a model for customer order decoupling point selection of domain knowledge interactions between enterprises and customers in mass customization.Based on the analysis of other researchers’ achievements combining the demand problems of customer and enterprise,a model of group decision for customer order decoupling point selection is constructed based on quality function deployment and multi-agent system.Considering relatively the decision mak- ers of independent functional departments as independent decision agents,a decision agent set is added as the third dimensionality to house of quality,the cubic quality function deployment is formed.The decision-making can be consisted of two procedures:the first one is to build each plane house of quality in various functional departments to express each opinions;the other is to evaluate and gather the foregoing sub-decisions by a new plane quality function deployment.Thus,department decision-making can well use its domain knowledge by ontology,and total decision-making can keep simple by avoiding too many customer requirements.展开更多
The key to mass customizing effectively is postponing the deco upling point of customer order in the supply network. This paper focused on quantitative analysis on postponement strategies of multiple decoupling points...The key to mass customizing effectively is postponing the deco upling point of customer order in the supply network. This paper focused on quantitative analysis on postponement strategies of multiple decoupling points in mass customization to improve operating efficiency and quickly meet customer demands with a minimum amount of inventory.展开更多
Based on the characteristic of AC-excited variable speed constant frequency(VSCF)wind power generation,the vector control technique was applied in a doubly fed induction generator(DFIG).Maximum wind energy or maximum ...Based on the characteristic of AC-excited variable speed constant frequency(VSCF)wind power generation,the vector control technique was applied in a doubly fed induction generator(DFIG).Maximum wind energy or maximum output power point can be tracked by decoupling control of active power and reactive power.The research result shows that the net power of generation system delivered to grid in maximum wind energy tracking mode is not the most.We presented a novel maximum power point tracking(MPPT)control strategy by analyzing the DFIG mathematic model and power relations which delivered the maximum power to the grid.The maximum power point could be tracked automatically without measuring wind speed in the control strategy and the control was independent of optimal turbine power curve,which had excellent dynamic and static performances and robustness.Simulation and experimental results testify the accuracy and validity of the control strategy.展开更多
基金Supported by the National Natural Science Foundation,China(No.70571019)the National High-Tech.R&D Program for CIMS,China(No.2002AA413110)the National Defense Basic Science and Research Foundation,China(No.A2320060097)
文摘Mass customization relates to the ability of providing individually designed products or services to customer with high process flexibility or integration.Literatures on mass customization have been focused on mechanism of MC,but little on cus- tomer order decoupling point selection.The aim of this paper is to present a model for customer order decoupling point selection of domain knowledge interactions between enterprises and customers in mass customization.Based on the analysis of other researchers’ achievements combining the demand problems of customer and enterprise,a model of group decision for customer order decoupling point selection is constructed based on quality function deployment and multi-agent system.Considering relatively the decision mak- ers of independent functional departments as independent decision agents,a decision agent set is added as the third dimensionality to house of quality,the cubic quality function deployment is formed.The decision-making can be consisted of two procedures:the first one is to build each plane house of quality in various functional departments to express each opinions;the other is to evaluate and gather the foregoing sub-decisions by a new plane quality function deployment.Thus,department decision-making can well use its domain knowledge by ontology,and total decision-making can keep simple by avoiding too many customer requirements.
文摘The key to mass customizing effectively is postponing the deco upling point of customer order in the supply network. This paper focused on quantitative analysis on postponement strategies of multiple decoupling points in mass customization to improve operating efficiency and quickly meet customer demands with a minimum amount of inventory.
基金Funded by the National Natural Science Foundation of China(No.60974049)the Science and Technology Support Industrial Project of Jiangsu Province(No.BZ2008031,No.BE2008074,and No.BE2009090)+1 种基金the Nantong International Cooperative Project(No.W2009003)the Natural Science Foundation of Nantong University(No.08Z022 and No.08Z025).
文摘Based on the characteristic of AC-excited variable speed constant frequency(VSCF)wind power generation,the vector control technique was applied in a doubly fed induction generator(DFIG).Maximum wind energy or maximum output power point can be tracked by decoupling control of active power and reactive power.The research result shows that the net power of generation system delivered to grid in maximum wind energy tracking mode is not the most.We presented a novel maximum power point tracking(MPPT)control strategy by analyzing the DFIG mathematic model and power relations which delivered the maximum power to the grid.The maximum power point could be tracked automatically without measuring wind speed in the control strategy and the control was independent of optimal turbine power curve,which had excellent dynamic and static performances and robustness.Simulation and experimental results testify the accuracy and validity of the control strategy.
