Integrated planning and scheduling under production uncertainties: Bi-level model formulation and hybrid solution method

We propose a novel method for integrating planning and scheduling problems under production uncertainties. The integrated problem is formulated into a bi-level program. The planning problem is solved in the upper level, while the scheduling problems in the planning periods are solved under uncertainties in the lower level. The planning and scheduling problems are linked via service level constraints. To solve the integrated problem, a hybrid method is developed, which iterates between a mixed-integer linear programming solver for the planning problem and an agent-based reactive scheduling method. If the service level constraints are not met, a cutting plane constraint is generated by the agent-based scheduling method and appended to the planning problem which is solved to determine new production quantities. The hybrid method returns an optimality gap for validating the solution quality. The proposed method is demonstrated by two complicated problems which are solved efficiently with small gaps less than 1%.     

Multiobjective optimization and decision-making for DG planning considering benefits between distribution company and DGs owner

Environmental concerns and fossil fuels uncertainties have resulted in promotion of multi-source and multi-type distributed generation (DG). However, the development of DG has brought new challenges to distribution system. This paper proposes a multiobjective optimization and decision-making methodology for determining size and site of multi-source and multi-type DG in distribution networks. The proposed method is based on the combination of analytical method and multi-objective optimization method and set pair of analysis (SPA). The comprehensive analysis of the loss sensitivity factor, voltage profile and reliability gave DG candidate locations. The multi-objective optimization method is based on an already-known but suitably modified Non-Dominated Sorting Genetic Algorithm (NSGA) to solve the constructed formulations, which include maximizing benefits of DG owner and Distribution Companies (DisCo) while meeting some constraints. The objective not only includes costs for DG investment, DG operation and maintenance, purchase of power by DisCo but also involving quantization for improvement of losses, voltage, reliability, etc. SPA, which is a multi-attribute decision analysis, is applied to obtain the synthetic priority of pareto solutions and carry out rank stability analysis. Furthermore, the proposed technique is applied to 37-bus distribution network. The results show that the proposed method is fast, reliable and available to determine size and site of DG as well as balance benefits between DG owner and DisCo.     

澳门融入粤港澳大湾区世界机场群路向研究

粤港澳大湾区世界城市群与世界机场群相伴而生、联动发展.建设世界级机场群，需要5大机场错位发展和良性互动.澳门国际机场是澳门融入粤港澳大湾区重要一极，但机场发展存在与澳门定位、香港珠海空域空运矛盾、澳门土地和环境现状等相关的问题.因此，澳门国际机场今后发展需在葡语国家航线、珠澳密切合作、公务机产业方面努力实现跨越式发展.然而，澳门国际机场改扩建问题争议不断，本文就原址扩建、填海区新建、飞地黄茅岛新建3种模式进行比较分析，探索符合澳门长远利益之方案.     

国土空间规划下水利基础设施信息管理平台设计

加快建立国土空间规划体系并监督实施是党中央、国务院做出的重大部署,而水利基础设施空间布局对促进各类空间布局与水资源承载能力、防洪安全保障水平相适应,预留水利基础设施建设空间具有重要作用。为有效对接国土空间规划编制工作,结合实际需求,研究并建立水利基础设施空间布局管理的标准、规范和体系,完成水利基础设施空间数据库的设计,并研究离线瓦片存储和Lucene全文检索引擎技术。在.Net框架的Visual Studio集成开发环境中,利用ArcGIS Engine组件开发水利基础设施信息管理平台,实现地图浏览、空间数据管理及数据质检分析功能,为统一水利空间用途管控、规划编制审批、实施监督管理提供数据支撑,也为下一步构建基础设施空间布局一张图管控平台提供坚实的基础与保障。     

Multi-objective planning and optimization of microgrid lithium iron phosphate battery energy storage system consider power supply status and CCER transactions

Lithium iron phosphate battery (LIPB) is the key equipment of battery energy storage system (BESS), which plays a major role in promoting the economic and stable operation of microgrid. Based on the advancement of LIPB technology and efficient consumption of renewable energy, two power supply planning strategies and the china certified emission reduction (CCER) model are proposed respectively. Based on it, the multi-objective planning optimization model with economic benefits, environmental benefits and power supply stability as the objective function is established for the first time, and the Newton Weighted Sum Frisch method (NWSFA) solution model is adopted. In the planning process, rain flow counting method is used to research the life of BESS, which improves the accuracy of energy storage annual cost calculation. A park in northern China is taken as a case study to demonstrate the application of this model. The simulation results show that the annual economic operating cost of BESS is decreased by 18.81%, the energy supply reliability is increased by 0.15%, and the optimal electricity price adjustment ratio of the system is 15%.     

藏族风情自驾旅游区概念规划——以四川松潘县林坡村为例

四川省甘(孜)—阿(坝)民族地区自然环境优美,民族文化浓郁,旅游资源丰富,近年来吸引了大批自驾游客。甘(孜)—阿(坝)地区松潘县川主寺镇林坡村基于生态和少数民族特色村寨保护的理念,围绕区域"硬资源"(自然景观)和"软资源"(民族特色风情)来构建旅游发展格局,形成了民族特色鲜明、生态可持续发展的体验式自驾旅游区。     

从珠江三角洲到粤港澳大湾区演变看规划响应

采用实证研究方法,以规划响应的演变印证规划的本质。前半部分对珠江三角洲乃至粤港澳大湾区的历版规划进行高度概括梳理凝练,解读了规划演变历史背景,揭示规划响应是一个由局部到整体、层级由低到高的演变过程,既是国家意志体现,亦是经济规律使然,此观点具首创性。后半部分主要阐述《粤港澳大湾区发展规划纲要》的出台及粤港澳三地聚焦科技创新走廊的规划响应,通过描述粤港澳三地在空间上和政策上各自作出的规划响应,以地区的特殊性再次重申“体现国家意志,顺应社会经济发展规律”的规划本质。     

全球视角下的粤港澳大湾区创新发展研究

全球视角下的粤港澳大湾区创新发展研究,将为大湾区建设国际科技创新中心提供方向。立足全球化背景下创新发展趋势,通过分析对比和总结归纳,识别当前大湾区区域和城市在创新发展的特征、问题和原因,并对大湾区提升全球创新地位提出建议。分析发现,大湾区创新主体高度集聚,创新产出和创新服务具有全球竞争力,但仍存在基础创新较弱、创新协作不足、创新服务品质不高等问题。基于以上结论,进一步提出了提升大湾区在全球创新地位的有关建议,包括推动产学研一体化发展、加强多元创新协同、优化创新环境品质等。     

近 20 年国外系统保护规划研究进展及启示

运用系统保护规划（SCP）的方法建立保护地（protected area）对生物多样性资源及其所提供的生态系统服务价值具有重要保护作用。笔者归纳总结了自 19 世纪 80 年代以来系统保护规划思想产生和发展的历程,随后基于近 20 年来系统保护规划相关文献,梳理得到现阶段影响保护规划最为核心的两大背景—气候变化及生态系统服务,此背景对系统保护规划六步法关键步骤的研究动态产生深刻影响,并推动了新的研究进展的产生,其中涵盖了规划理念更新、保护目标多元化、数据及模型算法拓展、管理框架变更。笔者结合中国的自然保护地规划背景和相关实践,从关键内容、监测评估、实施管理 3 个方面提出未来的研究方向,以期通过借鉴国际上保护规划的方法、工具、经验对完善中国的保护地体系构建的实践提供参考。     

新时期空间规划转向与政策绩效提升路径

公共政策限制或扩展了人的行为, 以此牵引空间需求并塑造城乡形态。而城乡 规划的本质即是人类社会对空间需求的集体 意志,是权衡社会、文化、经济和环境等无 边界因素之后的集体选择。城乡规划在新时 期融入了国土空间规划体系,但由于边界不 明确、作用机制不明朗、效果不直接、责任难 认定等原因,在积极贡献的同时,承受了较多 质疑甚至不实之责。为了更加清晰地认知空 间规划及其政策,可以借鉴西方城市发展和 规划理论探索经验,重新认知和区分规划领 域学理、法理、机理的内涵与差别,同时,探 讨提升空间规划政策绩效的路径,大体包括 推动经验判断转向情景演算、识别实施传导 机制、划定可试错的领域并完善纠错机制以 及促进规划政策全过程的知识积累等方面。