Integrated Monitoring and Fault-Tolerant Dispatch of Hybrid Energy Systems

主要研究者：El-Farra，Nael H.提案编号：1438456机构：加州-戴维斯大学标题：混合能源系统的集成监控和容错调度随着环境友好型微型涡轮机、燃料电池、光催化剂、小型风力涡轮机和其他先进分布式发电技术的到来，电力行业的竞争融合引发了人们对分布式发电的浓厚兴趣。这种政策和技术的融合有望将电力系统从主要依赖集中发电转变为分布式能源（DER）提供大部分所需电力的电力系统。由此产生的电力可靠性、质量和效率的重大改进，以及对不断变化的能源需求作出反应的更大灵活性，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-特别是考虑到能源需求反应堆的数量和多样性不断增加-是制定综合监测、控制和协调战略，以确保在各种干扰和故障情况下优化能源资源调度，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DER被整合以支持电网运行时，局部潮流中断可能产生的实质性影响。本研究项目的目标是解决故障中出现的基本问题-通过开发一个分层体系结构，将监测和监督容错控制相结合，实现DER的容错调度。在这种架构中，分布式监控和容错控制系统，执行及时的故障识别和控制系统重新配置在本地一级集成了一个更高级别的监督，最佳协调发电的情况下，本地故障整流是不可能的。这种等级制度能够及时减轻监督的失误。为实现这些目标，计划开展以下项目：（1）在独立的DER中开发用于基于局部模型的故障识别和调节的综合方法，（2）设计鲁棒的监测和重新配置策略，该策略考虑由于可再生DER中的间歇性发电、外部干扰以及数据丢失和错误而引起的内在不确定性，（3）基于优化的监控系统的设计，该系统在故障事件之后重新配置电力调度策略，以及（4）所开发的方法在混合DER的仿真模型中的应用。

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.