Secondly , based on the estimated market clearing prices of electricity an effort is made to investigate the optimal strategies of maintenance scheduling for generating units with risk management , under the methodological framework of the well - developed chance constrained programming 该模型允许所形成的检修方案在某些情况下不满足小于某一给定的收益损失的约束,但这种情况发生的概率必须小于某一置信度水平。
This paper presents a refined methodological framework for measuring accessibility , which enables the researcher to ( 1 ) improve the measurement by accounting for job competition among workers commuting by different modes and ( 2 ) understand the outcome more thoroughly by distinguishing the effect of location from that of workers ' auto ownership 本论文提出一种较优的可达性测度方法,从而使研究者一方面能把就业竞争考虑在内,另一方面能区分地理位置和交通模式对测度结果的影响。
First , a new methodological framework is developed for investigating the optimal strategies of maintenance scheduling for generating units with risk well taken into account , based on the widely employed power pool mode and the uniform clearing price . two scenarios are examined in detail , i . e . , for the two cases that the generation company studied is / is not a price taker in the electricity market operation . based on the electricity market clearing prices estimated , a new methodological framework is presented , mathematical models formulated and a solving method developed 以国内外广为采用的联营体模式、统一市场清算价结算的现货电力市场为背景,在假设市场电价可以预测并能够描述为某种概率分布的前提下,采用方差或标准差来描述和度量风险;建立了相应的优化模型,为发电公司在制定发电机组的检修计划时适当兼顾利润损失的期望值最小和风险最小这两个目标提供了新的解决途径。