CAREER: A Hierarchical Restructuring Operation Framework for Sustainable and Resilient Electricity Distribution Systems

事业：可持续和有弹性的配电系统的分层重组运营框架

• 批准号: 1653179
• 负责人: Jie Li
• 金额: $ 50万
• 依托单位: Clarkson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-03-01 至 2019-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1653179&HistoricalAwards=false
• 关键词: CAREER; Hierarchical; Restructuring; Operation; Framework

In response to the urgent need to improve societal capabilities to withstand and recover from major natural or man-made catastrophic events, community microgrids are designed to provide sustainable and resilient electric energy supply for critical services. With increased penetration of community microgrids and distributed energy resources, distribution systems are transforming from traditionally passive radial networks operated by a single utility to more sophisticated active networked topologies with multiple autonomic entities. This transformation in distribution systems has resulted in a need to reshape the way electricity services are delivered and distribution systems are designed and managed. To address these challenges, this CAREER project will investigate new approaches for comprehensive modeling of distinct characteristics of emerging distribution systems with a proliferation of community microgrids, and explore optimal operation strategies for enhancing the sustainability and resiliency of distribution systems. Specifically, a two-tier hierarchical restructuring framework is proposed for guiding the optimal operation and coordination of distribution systems and community microgrids, with special focus on investigating fundamental market clearing mechanisms and efficient computation tools. Results from this research could facilitate the optimal design of future fully liberalized retail distribution markets and related energy policies, and guide the active participation of microplayer-like electricity prosumers (producer-consumers) in such distribution-level markets. The research efforts will be complemented by an education and outreach plan aimed at increasing public awareness and understanding of the complexity of distribution systems restructuring, and to prepare the next generation workforce with needed skills to meet the needs of the power industry.Both physical feasibility and financial viability of individual autonomic entities are key to the successful implementation of distribution system restructuring and retail electricity markets. This project will address such challenges via five integrated research and educational activities, namely: (i) Exploring market operation and pricing mechanisms for distribution system operators based on comprehensive unbalanced three-phase alternating current optimal power flow models and efficient computation methods. The proposed per-phase nodal distribution locational marginal pricing concept can effectively incentivize the continued participation of various distribution customers in retail electricity markets; (ii) Investigating market operation and pricing mechanisms for community microgrid operators based on comprehensive unbalanced three-phase alternating current unit commitment models and efficient computation methods. The proposed per-phase nodal community locational marginal pricing concept can effectively coordinate heterogeneous community partners under both grid-connected and islanded operation modes, and incentivize their continued participation in community microgrids. Flexibilities of typical community microgrid partners are also investigated to help guide their strategic bidding in community microgrids; (iii) Addressing major research questions via the proposed models and computation methods to further promote the implementation of distribution systems restructuring; (iv) Validating the proposed research in simulated and realistic system models; and (v) Exploring knowledge and skill requirements for the sustainable operation and effective restructuring of emerging distribution systems and community microgrids, and investigating education and training needs for retooling existing power engineering programs and curricula.

为了应对迫切需要提高社会能力以承受和从重大的自然或人为灾难性事件中恢复的能力，社区微电网旨在为关键服务提供可持续和弹性的电力供应。 随着社区微电网和分布式能源资源的渗透，分配系统正在从单个实用程序运行的传统被动径向网络转变为具有多个自主神经实体的更复杂的主动网络拓扑。 分销系统中的这种转换导致需要重塑电力服务的交付方式，并设计和管理分销系统。 为了应对这些挑战，该职业项目将调查新方法，以综合建模新兴的分销系统，并具有社区微电网的扩散，并探讨了提高分配系统的可持续性和弹性的最佳操作策略。 具体而言，提出了一个两层分层重组框架，以指导分配系统和社区微电网的最佳操作和协调，特别着重于研究基本市场清除机制和有效的计算工具。 这项研究的结果可以促进未来完全自由化的零售分销市场和相关能源政策的最佳设计，并指导类似于微型层次的电力制造商（生产者消费者）在此类分配级别市场中的积极参与。 旨在提高公众意识和对分配系统重组复杂性的了解和理解的教育和外展计划将得到补充，并为下一代劳动力做好准备以满足电力行业需求的下一代劳动力。各个自主教的物理可行性和个人自治实体的财务可行性都是成功实施分配系统重组和发放电力市场的关键。 该项目将通过五项综合研究和教育活动来应对此类挑战，即：（i）基于全面不平衡的三相交替交替的当前最佳功率流模型和有效的计算方法，探索分销系统运营商的市场运营和定价机制。 拟议的每台节点分配位置的边际定价概念可以有效地激励各种分销客户在零售电力市场中的继续参与； （ii）基于全面的不平衡三相交替的当前单位承诺模型和有效的计算方法，研究社区微电网运营商的市场运营和定价机制。 拟议的每一阶段节点社区位置边际定价概念可以有效地协调与网格连接和岛屿的操作模式下的异质社区合作伙伴，并激励他们继续参与社区微电网。 还研究了典型的社区微电网合作伙伴的灵活性，以帮助指导其在社区微电网中的战略招标； （iii）通过提出的模型和计算方法解决主要的研究问题，以进一步促进分配系统重组的实施； （iv）在模拟和现实的系统模型中验证拟议的研究； （v）探索可持续运营的知识和技能要求，并有效地重组新兴的分销系统和社区微电网，并调查对现有的动力工程计划和课程的教育和培训需求。

项目成果

Chordal Relaxation Based ACOPF for Unbalanced Distribution Systems With DERs and Voltage Regulation Devices

• DOI: 10.1109/tpwrs.2017.2707564
• 发表时间: 2018
• 期刊: IEEE Transactions on Power Systems
• 影响因子: 6.6
• 作者: Yikui Liu;Jie Li;Lei Wu;T. Ortmeyer