竞争性售电市场快速发展,差异化可靠性服务前景广阔,但仍受信息不对称问题与“搭车”现象制约。为此,针对可靠性服务优先的配电网重构问题,搭建各市场主体间双层博弈模型。首先,基于最小路法定义了具有差异化与精准化特征的可靠性服务...竞争性售电市场快速发展,差异化可靠性服务前景广阔,但仍受信息不对称问题与“搭车”现象制约。为此,针对可靠性服务优先的配电网重构问题,搭建各市场主体间双层博弈模型。首先,基于最小路法定义了具有差异化与精准化特征的可靠性服务。其次,设计配电网运营商(distribution system operator,DSO)与可靠性服务聚合商(reliability service aggregator,RSA)的合同模式,分析DSO、RSA与用户三方的博弈关系。在上层主从博弈中,DSO为主方,RSA为从方,双方通过博弈实现各自效益,并确定重构策略与下层总费用;在下层合作博弈中,可用Shapley值法实现用户总费用的公平分配。在证明该双层博弈模型纳什均衡存在性前提下,采用分散迭代法可实现稳定求解。算例分析表明,所提方法在适当市场机制下,可精准保障停电时优先用户可靠供电,满足用户差异化的可靠性需求。展开更多
From the viewpoint of service level agreements, the transmission accuracy rate is one of critical performance indicators to assess internet quality for system managers and customers. Under the assumption that each arc...From the viewpoint of service level agreements, the transmission accuracy rate is one of critical performance indicators to assess internet quality for system managers and customers. Under the assumption that each arc＇s capacity is deterministic, the quickest path problem is to find a path sending a specific of data such that the transmission time is minimized. However, in many real-life networks such as computer networks, each arc has stochastic capacity, lead time and accuracy rate. Such a network is named a multi-state computer network. Under both assured accuracy rate and time constraints, we extend the quickest path problem to compute the probability that d units of data can be sent through multiple minimal paths simultaneously. Such a probability named system reliability is a performance indicator to provide to managers for understanding the ability of system and improvement. An efficient algorithm is proposed to evaluate the system reliability in terms of the approach of minimal paths.展开更多
文摘竞争性售电市场快速发展,差异化可靠性服务前景广阔,但仍受信息不对称问题与“搭车”现象制约。为此,针对可靠性服务优先的配电网重构问题,搭建各市场主体间双层博弈模型。首先,基于最小路法定义了具有差异化与精准化特征的可靠性服务。其次,设计配电网运营商(distribution system operator,DSO)与可靠性服务聚合商(reliability service aggregator,RSA)的合同模式,分析DSO、RSA与用户三方的博弈关系。在上层主从博弈中,DSO为主方,RSA为从方,双方通过博弈实现各自效益,并确定重构策略与下层总费用;在下层合作博弈中,可用Shapley值法实现用户总费用的公平分配。在证明该双层博弈模型纳什均衡存在性前提下,采用分散迭代法可实现稳定求解。算例分析表明,所提方法在适当市场机制下,可精准保障停电时优先用户可靠供电,满足用户差异化的可靠性需求。
基金supported in part by the National Science Council,Taiwan,China,under Grant No.NSC 101-2628-E-011-005-MY3
文摘From the viewpoint of service level agreements, the transmission accuracy rate is one of critical performance indicators to assess internet quality for system managers and customers. Under the assumption that each arc＇s capacity is deterministic, the quickest path problem is to find a path sending a specific of data such that the transmission time is minimized. However, in many real-life networks such as computer networks, each arc has stochastic capacity, lead time and accuracy rate. Such a network is named a multi-state computer network. Under both assured accuracy rate and time constraints, we extend the quickest path problem to compute the probability that d units of data can be sent through multiple minimal paths simultaneously. Such a probability named system reliability is a performance indicator to provide to managers for understanding the ability of system and improvement. An efficient algorithm is proposed to evaluate the system reliability in terms of the approach of minimal paths.
