Integrated Monitoring and Fault-Tolerant Dispatch of Hybrid Energy Systems

项目负责人：El-Farra， Nael h .提案#:1438456机构：加州大学戴维斯分校标题：混合能源系统的综合监测和容错调度随着环保微型涡轮机、燃料电池、光伏、小型风力涡轮机和其他先进分布式发电技术的出现，电力行业的竞争日益激烈，这引发了人们对分布式发电的强烈兴趣。这种政策和技术的融合有望将电力系统从主要依赖中央发电转变为分布式能源（DERs）提供大部分所需电力的系统。由此带来的电力可靠性、质量和效率的重大改善；更灵活地应对不断变化的能源需求，可以节省目前每年因电力中断而损失的数十亿美元。这一演变的一个重要挑战——特别是考虑到DERs的数量和多样性的增加——是综合监测、控制和协调策略的发展，以确保在各种干扰和故障情况下能源资源的最佳调度，提供高度可靠的服务。考虑到分布式电力市场是由对可靠的高质量电力的需求驱动的，以及当分布式电源集成到支持电网运行时，局部潮流中断可能产生的重大影响，这一点非常重要。本研究项目的目的是通过开发一种用于集成监控和监管容错控制的分层体系结构来解决DERs容错调度中出现的基本问题。在这种体系结构中，分布式监控和容错控制系统在局部级别执行及时的故障识别和控制系统重构，并与更高级别的主管集成在一起，该主管在无法进行局部故障纠正的情况下最佳地协调发电。这种层次结构可以通过监督及时减轻错误。为实现这些目标，计划实施以下项目：(1)开发基于局部模型的独立DERs故障识别和调整集成方法；(2)设计健壮的监测和重新配置策略，考虑可再生der中间歇性发电、外部干扰、数据丢失和错误造成的内在不确定性；(3)设计基于优化的监控系统，在故障事件发生后重新配置电力调度策略；(4)所开发方法在混合DERs模型模拟中的应用。

PI: El-Farra, Nael H.Proposal #: 1438456Institution: University of California - Davis Title: Integrated Monitoring and Fault-Tolerant Dispatch of Hybrid Energy SystemsThe convergence of competition in the power industry with the arrival of environmentally friendly micro-turbines, fuel cells, photovoltaics, small wind turbines, and other advanced distributed power technologies has sparked strong interest in distributed power generation. This convergence of policy and technology promises to transform the electric power system from one relying primarily on central generation to one in which Distributed Energy Resources (DERs) provide most of the power needed. The resulting major improvement in power reliability, quality and efficiency; and the greater flexibility to respond to changing energy needs could save billions of dollars now lost each year because of power disruptions. An important challenge with this evolution -- especially in light of the increasing number and diversity of DERs -- is the development of integrated monitoring, control and coordination strategies that would ensure optimal dispatch of the energy resources to provide highly reliable services under various disturbance and failure scenarios. This is significant given the fact that the distributed power market is driven by the need for reliable high-quality power, and the substantial impact that local disruptions in power flow can have when the DERs are integrated to support grid operations.The objective of this research project is to resolve the fundamental issues that arise in the fault-tolerant dispatch of DERs through the development of a hierarchical architecture for the integration of monitoring and supervisory fault-tolerant control. In this architecture, distributed monitoring and fault-tolerant control systems that perform timely fault identification and control system reconfiguration at the local level are integrated with a higher-level supervisor that optimally coordinates power generation in the event that local fault rectification is not possible. This hierarchy enables the timely mitigation of faults with supervisory oversight. To achieve these objectives, the following projects are planned: (1) the development of an integrated approach for local model-based fault identification and accommodation in stand-alone DERs, (2) the design of robust monitoring and reconfiguration strategies that account for intrinsic uncertainties due to intermittent power generation in renewable DERs, external disturbances, and data losses and errors, (3) the design of an optimization-based supervisory control system that reconfigures the power dispatch strategy following failure events, and (4) applications of the developed methods to simulated models of hybrid DERs.