With the increasing requirement of a higher living quality and the growing awareness of energy saving, how to improve the indoor comfort level and to reduce the expenditure of energy and slow down the rate of natural ...With the increasing requirement of a higher living quality and the growing awareness of energy saving, how to improve the indoor comfort level and to reduce the expenditure of energy and slow down the rate of natural resource consumption is becoming increasingly important. The theory of open-plan housing is able to provide a more flexible and adaptive space for the users and bring sustainable and economic benefit in the way of making full use of construction materials. Sustainable architecture design, as a method to respond the phenomenon, is able to low down the building＇ s energy consumption and has enormous potentials in creation of sustainable living environment and a high-quality dwelling condition. The primary aim of this research is to create a new sustainable architecture design method for occupancy by integrating openplan housing theory and application of sustainable technologies. Numerical simulation by computer program is applied in order to investigate and evaluate the possibility of this method in teruas of improving indoor comfort level and energy-saving capacity.展开更多
针对特高压接入的输电网网架错综复杂、远景适应性差,甚至出现网架规划与开环分区决策相互独立导致资源浪费等问题,该文引入奇异值分解(singular value decomposition,SVD)和特征索引技术,提出了一种考虑电磁环网开环分区和500/220kV典...针对特高压接入的输电网网架错综复杂、远景适应性差,甚至出现网架规划与开环分区决策相互独立导致资源浪费等问题,该文引入奇异值分解(singular value decomposition,SVD)和特征索引技术,提出了一种考虑电磁环网开环分区和500/220kV典型供电结构的输电网多阶段规划方法。首先,提取典型供电结构的路径特征,制定了一种基于标签路径特征的典型供电结构索引策略;然后,构建了一种基于SVD的典型供电结构相似度指标,基于此,以全局典型供电结构相似程度最大为目标,建立了相似度识别规划模型;最后,提出了一种反馈调节机制及求解方法,统筹协调各阶段网架规划和开环分区之间的决策信息。与传统规划方法相比,该文方法不仅能够避免不同阶段开环分区决策导致的资源浪费,还可以减少复杂的规划评估指标计算,构建供电可靠性高、运行方式灵活、远景适应性强的网架结构。基于湖南某地区实际电网算例验证了该文方法的准确性和有效性。展开更多
Research on the window operating behavior of offices is of great significance for reducing building energy con-sumption and improving indoor comfort.The open-plan office is a common office form that involves a large n...Research on the window operating behavior of offices is of great significance for reducing building energy con-sumption and improving indoor comfort.The open-plan office is a common office form that involves a large number of people and a complex staffcomposition.The window operating behaviors in open-plan offices are also random and various.This study took three open-plan offices with different situations(area,office type,staffcomposition,etc.)as an example,which provides a new perspective on how people behave differently when opening or closing windows.The window operating behaviors in two typical seasons(summer and transition seasons)were recorded and analyzed.The occupants’schedules and influencing factors of window operating behavior were investigated by questionnaire surveys.In addition,the indoor environmental parameters,occu-pancy situation,and on-offstatuses of windows and air conditioning were acquired through field measurements.Furthermore,the differences in window operating behaviors in the three open-plan offices were compared from the perspectives of influencing factors,duration of the window on-offstatuses,and cause of window control ac-tions,among others.In addition,Spearman Correlation Coefficient was used to analyze the ranks of the candidate motivations for window operating behaviors.The preliminary results show that influenced by the personnel com-position,type of air conditioner and adjustable degree of windows,the window operating behaviors of different office buildings have larger discrepancies than that in the same building.However,there were some common characteristics in the window regulation behaviors of the three open-plan offices:they were generally influenced by the coupling of environmental factors,schedule factors,and equipment factors.This study reveals that when expand the research object from a single building to multiple buildings,more difficulties and challenges would be involved into behavior research.展开更多
随着新型电力系统的建设,用户对于供电可靠性的需求日益升高,而各类开关作为配电网自愈过程的主要执行设备,其优化配置对于提高系统可靠性起到关键作用。新型柔性软开关(soft open point,SOP)具有远程控制与电压支撑的特点,可替代传统...随着新型电力系统的建设,用户对于供电可靠性的需求日益升高,而各类开关作为配电网自愈过程的主要执行设备,其优化配置对于提高系统可靠性起到关键作用。新型柔性软开关(soft open point,SOP)具有远程控制与电压支撑的特点,可替代传统配电网中的联络开关,实现各馈线之间的柔性互联,为改善配电网可靠性提供了新的思路。为此,该文提出一种显式集成可靠性表达式的柔性配电网多类型开关优化配置模型,对配电网自愈过程不同阶段中柔性开关与其他智能开关的动作耦合关系进行精细化建模,建立不同开关类型与系统可靠性指标之间的显式解析关系,从而得到最优的多类型开关配置方案。最后,在配电网算例中对该模型进行测试,验证模型的正确性和有效性。展开更多
文摘With the increasing requirement of a higher living quality and the growing awareness of energy saving, how to improve the indoor comfort level and to reduce the expenditure of energy and slow down the rate of natural resource consumption is becoming increasingly important. The theory of open-plan housing is able to provide a more flexible and adaptive space for the users and bring sustainable and economic benefit in the way of making full use of construction materials. Sustainable architecture design, as a method to respond the phenomenon, is able to low down the building＇ s energy consumption and has enormous potentials in creation of sustainable living environment and a high-quality dwelling condition. The primary aim of this research is to create a new sustainable architecture design method for occupancy by integrating openplan housing theory and application of sustainable technologies. Numerical simulation by computer program is applied in order to investigate and evaluate the possibility of this method in teruas of improving indoor comfort level and energy-saving capacity.
文摘针对特高压接入的输电网网架错综复杂、远景适应性差,甚至出现网架规划与开环分区决策相互独立导致资源浪费等问题,该文引入奇异值分解(singular value decomposition,SVD)和特征索引技术,提出了一种考虑电磁环网开环分区和500/220kV典型供电结构的输电网多阶段规划方法。首先,提取典型供电结构的路径特征,制定了一种基于标签路径特征的典型供电结构索引策略;然后,构建了一种基于SVD的典型供电结构相似度指标,基于此,以全局典型供电结构相似程度最大为目标,建立了相似度识别规划模型;最后,提出了一种反馈调节机制及求解方法,统筹协调各阶段网架规划和开环分区之间的决策信息。与传统规划方法相比,该文方法不仅能够避免不同阶段开环分区决策导致的资源浪费,还可以减少复杂的规划评估指标计算,构建供电可靠性高、运行方式灵活、远景适应性强的网架结构。基于湖南某地区实际电网算例验证了该文方法的准确性和有效性。
基金supported by the National Natural Science Foundation(51708105).
文摘Research on the window operating behavior of offices is of great significance for reducing building energy con-sumption and improving indoor comfort.The open-plan office is a common office form that involves a large number of people and a complex staffcomposition.The window operating behaviors in open-plan offices are also random and various.This study took three open-plan offices with different situations(area,office type,staffcomposition,etc.)as an example,which provides a new perspective on how people behave differently when opening or closing windows.The window operating behaviors in two typical seasons(summer and transition seasons)were recorded and analyzed.The occupants’schedules and influencing factors of window operating behavior were investigated by questionnaire surveys.In addition,the indoor environmental parameters,occu-pancy situation,and on-offstatuses of windows and air conditioning were acquired through field measurements.Furthermore,the differences in window operating behaviors in the three open-plan offices were compared from the perspectives of influencing factors,duration of the window on-offstatuses,and cause of window control ac-tions,among others.In addition,Spearman Correlation Coefficient was used to analyze the ranks of the candidate motivations for window operating behaviors.The preliminary results show that influenced by the personnel com-position,type of air conditioner and adjustable degree of windows,the window operating behaviors of different office buildings have larger discrepancies than that in the same building.However,there were some common characteristics in the window regulation behaviors of the three open-plan offices:they were generally influenced by the coupling of environmental factors,schedule factors,and equipment factors.This study reveals that when expand the research object from a single building to multiple buildings,more difficulties and challenges would be involved into behavior research.
文摘随着新型电力系统的建设,用户对于供电可靠性的需求日益升高,而各类开关作为配电网自愈过程的主要执行设备,其优化配置对于提高系统可靠性起到关键作用。新型柔性软开关(soft open point,SOP)具有远程控制与电压支撑的特点,可替代传统配电网中的联络开关,实现各馈线之间的柔性互联,为改善配电网可靠性提供了新的思路。为此,该文提出一种显式集成可靠性表达式的柔性配电网多类型开关优化配置模型,对配电网自愈过程不同阶段中柔性开关与其他智能开关的动作耦合关系进行精细化建模,建立不同开关类型与系统可靠性指标之间的显式解析关系,从而得到最优的多类型开关配置方案。最后,在配电网算例中对该模型进行测试,验证模型的正确性和有效性。
