CAREER: Computational toolbox for improved security of power systems

职业：提高电力系统安全性的计算工具箱

• 批准号: 1554171
• 负责人: Konstantin Turitsyn
• 金额: $ 50万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-03-01 至 2021-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1554171&HistoricalAwards=false
• 关键词: CAREER; Computational; toolbox; improved; security

The power grid is undergoing probably the most transformative transition in the last 50 years. Introduction of clean, but intermittent (sporadic) renewable generation introduces an unprecedented level of uncertainty in power system operation. At the same time, the society becomes more and more dependent on reliable supply of power and more sensitive to power outages. Maintaining power system security i.e. its ability to withstand most probable disturbances is an extremely challenging computational problem. Millions of scenarios have to be fast screened by operators and contingency plans prepared for the most dangerous of them. The key objective of this project is to develop a new generation of computational techniques that would allow fast identification of safe operating conditions that ensure system resiliency. This goal is achieved by targeted advancement and adaptation of the modern optimization and nonlinear analysis techniques to specific challenges faced by the power industry. The latter include but are not limited to: estimation of the reserve levels necessary for operation in the presence of intermittent wind power, identification of the most dangerous line failure scenarios, design of the most effective remedial action plans. The research activities will be tightly interwoven with educational and outreach efforts. Undergraduate and high-school students from underrepresented minorities will be engaged in the group research and educational activities. A set of simple power-grid inspired puzzles will be developed that will help explaining the kids and the broad audience the technical trade-offs and decisions that the power industry faces today. Finally, a new EdX introductory class on power systems with interactive problems will be developed to help in educating the future engineering workforce for power industry.The technical approach of the research part of the project is based on the idea of constructing safe operation regions in parameter space where the solution is guaranteed to exist and satisfy operational constraints. These "certificates" are formally an inner approximation of the feasibility set and can be constructed via a variety of techniques with the most general relying on Sum-of-Squares approaches. The project will explore possible representations of the mathematical problems appearing in the context of power system operations and security assessment. Specific problems that will be naturally addressed with the developed mathematical tools include computation of do-not-exceed limits, screening of N-1 and N-2 contingencies for AC power flow model, verification of the remedial actions, assessment of voltage stability margins in the presence of distributed reactive power control. A hierarchy of certificates will be constructed covering the conservativeness - complexity trade-off curve and their effectiveness demonstrated on standard IEEE testcases. The implementations of the codes will be linked to the mostpopular academic analysis packages and release under open source license in public domain.

电网可能正在经历过去50年来最具变革性的转变。清洁但间歇性（零星）可再生能源发电的引入给电力系统运行带来了前所未有的不确定性。与此同时，社会对可靠的电力供应越来越依赖，对停电也越来越敏感。维持电力系统的安全性，即其承受最可能干扰的能力是一个极具挑战性的计算问题。操作人员必须快速筛选数百万种情况，并为其中最危险的情况准备应急计划。该项目的主要目标是开发新一代计算技术，以快速识别安全操作条件，确保系统的弹性。这一目标是通过有针对性地推进和适应现代优化和非线性分析技术来实现的，以应对电力工业面临的具体挑战。后者包括但不限于：估计在间歇性风力发电的情况下运行所需的储备水平，识别最危险的线路故障情况，设计最有效的补救行动计划。研究活动将与教育和外联工作紧密结合。来自未被充分代表的少数民族的本科生和高中生将参与小组研究和教育活动。将开发一套简单的受电网启发的谜题，这将有助于向孩子们和广大观众解释当今电力行业面临的技术权衡和决策。最后，将开设一个新的EdX入门课程，介绍电力系统的互动问题，以帮助培养未来电力行业的工程人才。本课题研究部分的技术思路是在参数空间中构造安全运行区域，保证解存在并满足运行约束。这些“证书”在形式上是可行性集的内部近似值，可以通过各种技术构建，最常用的是依靠平方和方法。该项目将探索在电力系统运行和安全评估的背景下出现的数学问题的可能表示。使用开发的数学工具自然会解决的具体问题包括不超过限制的计算，交流潮流模型N-1和N-2突发事件的筛选，补救措施的验证，分布式无功控制下电压稳定裕度的评估。将构建一个包含保守性-复杂性权衡曲线的证书层次结构，并在标准IEEE测试用例上证明其有效性。代码的实现将链接到最流行的学术分析包，并在公共领域的开源许可下发布。