现有电力系统稳定器(power system stabilizer,PSS)和直流调制多使用本地信号作为控制器反馈输入信号,控制器间的交互作用可能降低甚至破坏系统稳定性。提出了一种基于广域测量信号的PSS与直流调制协调策略,首先通过留数法选择对于振荡...现有电力系统稳定器(power system stabilizer,PSS)和直流调制多使用本地信号作为控制器反馈输入信号,控制器间的交互作用可能降低甚至破坏系统稳定性。提出了一种基于广域测量信号的PSS与直流调制协调策略,首先通过留数法选择对于振荡模态可观性较强的广域信号作为阻尼控制器备选反馈信号;其次通过相对增益方法选择使PSS和直流调制交互影响最小的备选信号作为最佳反馈信号;而后设计分散控制器,并运用基于混沌和差分进化的混合粒子群优化算法对PSS和直流调制控制器参数进行协调优化。最后,通过EPRI 36节点系统仿真验证了协调策略的正确性和有效性。展开更多
将消费者对乳制品新鲜度的参考效应引入第三方物流(third party logistics,TPL)服务商参与的双渠道乳制品供应链中,考虑到乳制品新鲜度受到制造商加工水平和TPL服务商物流服务水平的共同影响,构建分散式、集中式以及引入基于二部定价的...将消费者对乳制品新鲜度的参考效应引入第三方物流(third party logistics,TPL)服务商参与的双渠道乳制品供应链中,考虑到乳制品新鲜度受到制造商加工水平和TPL服务商物流服务水平的共同影响,构建分散式、集中式以及引入基于二部定价的成本共担契约下的微分博弈模型,求解并比较3种情形下供应链成员的最优均衡策略.研究表明:一定条件下,基于二部定价的成本共担契约能够使制造商加工水平、TPL服务商物流服务水平以及供应链整体收益均达到集中式决策下的情形,而且制造商、零售商和TPL服务商的收益相较于分散式决策都能得到帕累托改善,供应链能够实现完美协调;线上或线下渠道乳制品的零售价与该渠道所占的市场份额及渠道间的价格替代系数正相关;消费者的参考效应能够激励制造商和TPL服务商提高各自的努力水平,使供应链收益增加.展开更多
This paper presents a dynamic closed-loop supply chain(CLSC)model,incorporating a manufacturer,a retailer,and an internet recycling platform(IRP),utilizing differential game theory while considering the forgetting eff...This paper presents a dynamic closed-loop supply chain(CLSC)model,incorporating a manufacturer,a retailer,and an internet recycling platform(IRP),utilizing differential game theory while considering the forgetting effect of consumers.The model encompasses factors such as the quality level of used products and Big Data marketing(BDM),comparing optimal equilibriums under decentralized and cooperative decision scenarios.To effectively coordinate the dynamic CLSC at each time point,we propose a revenue-sharing and cost-sharing(RSCS)combined contract.In addition to ensuring reasonable sharing of revenues and costs,this contract allows the manufacturer to flexibly adjust wholesale prices for final products and transfer prices for used products in order to distribute profits appropriately and achieve Pareto optimality within the CLSC system.Furthermore,our results indicate that there exists a threshold for Big Data marketing efficiency;high-efficiency BDM not only facilitates increased recycling on Internet platforms but also reduces unit recycling costs for enterprises.Interestingly,when implementing the combined contract,Big Data marketing efficiency does not impact the transfer price paid by manufacturers to Internet recycling platforms.展开更多
文摘现有电力系统稳定器(power system stabilizer,PSS)和直流调制多使用本地信号作为控制器反馈输入信号,控制器间的交互作用可能降低甚至破坏系统稳定性。提出了一种基于广域测量信号的PSS与直流调制协调策略,首先通过留数法选择对于振荡模态可观性较强的广域信号作为阻尼控制器备选反馈信号;其次通过相对增益方法选择使PSS和直流调制交互影响最小的备选信号作为最佳反馈信号;而后设计分散控制器,并运用基于混沌和差分进化的混合粒子群优化算法对PSS和直流调制控制器参数进行协调优化。最后,通过EPRI 36节点系统仿真验证了协调策略的正确性和有效性。
文摘将消费者对乳制品新鲜度的参考效应引入第三方物流(third party logistics,TPL)服务商参与的双渠道乳制品供应链中,考虑到乳制品新鲜度受到制造商加工水平和TPL服务商物流服务水平的共同影响,构建分散式、集中式以及引入基于二部定价的成本共担契约下的微分博弈模型,求解并比较3种情形下供应链成员的最优均衡策略.研究表明:一定条件下,基于二部定价的成本共担契约能够使制造商加工水平、TPL服务商物流服务水平以及供应链整体收益均达到集中式决策下的情形,而且制造商、零售商和TPL服务商的收益相较于分散式决策都能得到帕累托改善,供应链能够实现完美协调;线上或线下渠道乳制品的零售价与该渠道所占的市场份额及渠道间的价格替代系数正相关;消费者的参考效应能够激励制造商和TPL服务商提高各自的努力水平,使供应链收益增加.
基金supported by funding from National Natural Science Foundation of China under Grant Nos.72301087 and 71931009National Social Science Fund of China under Grant No.22CGL014+2 种基金Zhejiang Provincial Natural Science Foundation of China under Grant No.LQ23G010002Zhejiang Provincial Philosophy and Social Sciences Planning Project under Grant No.24NDQN007YBResearch Start-up fund of Hangzhou Normal University under Grant No.4135C50221204091.
文摘This paper presents a dynamic closed-loop supply chain(CLSC)model,incorporating a manufacturer,a retailer,and an internet recycling platform(IRP),utilizing differential game theory while considering the forgetting effect of consumers.The model encompasses factors such as the quality level of used products and Big Data marketing(BDM),comparing optimal equilibriums under decentralized and cooperative decision scenarios.To effectively coordinate the dynamic CLSC at each time point,we propose a revenue-sharing and cost-sharing(RSCS)combined contract.In addition to ensuring reasonable sharing of revenues and costs,this contract allows the manufacturer to flexibly adjust wholesale prices for final products and transfer prices for used products in order to distribute profits appropriately and achieve Pareto optimality within the CLSC system.Furthermore,our results indicate that there exists a threshold for Big Data marketing efficiency;high-efficiency BDM not only facilitates increased recycling on Internet platforms but also reduces unit recycling costs for enterprises.Interestingly,when implementing the combined contract,Big Data marketing efficiency does not impact the transfer price paid by manufacturers to Internet recycling platforms.
