Load Dispatch Control of Electric Power Systems Based on Equipment Health

基于设备健康的电力系统负荷调度控制

• 批准号: 9912495
• 负责人: Asok Ray
• 金额: $ 5万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9912495&HistoricalAwards=false
• 关键词: Load; Dispatch; Control; Electric; Power

The proposed GOALI research generalizes the notion of life extending control of a single generating unit to load control to several generating units interconnected on a common grid. This research introduces a novel concept of Life Extending Load Dispatch System (LELDS) that is characterized by: A two-tier structure for load scheduling and life extension of individual generating units over the grid; Load dispatching and unit commitment based on health monitoring, conducted at the upper level; Localized robust life extending control of individual generating units conducted at the lower level.The objective of this research is to investigate feasibility and viability of the proposed Life Extending Load Dispatch System (LELDS) over a conventional Load Dispatch System (LDS) that does not explicitly address the issue of equipment health (i.e., structural durability) of power plants. As unit reliability has become one of the most dominant economic factors in the deregulated environment, market pricing and penalties of energy supplied or lost often far outweigh the economics of transmission loss considerations or fine tuning of the generation levels. The LELDS will include the requirements of several dynamic and steady state energy services that are important to the regulation and control of grid as a whole. In the present environment of electricity deregulation, revenue and economic penalties are assigned to each of the grid energy control services thereby elevating their impact on the generating units and utility companies in contrast to the previous regulated environment. From this perspective, potential benefits of the proposed LELDS include: increased power system reliability and lower electricity generation cost, reduced maintenance, and increased availability of the generating units to satisfy energy market transactions as well as fluctuating native load on the grid. An additional feature of the proposed research is exchange of real-time information among the LELDS and generating units for remote health monitoring, diagnostics, and maintenance. Feasibility of these concepts will be validated on a testbed that will simulate a power system grid along with pertinent electromechanical and thermal-hydraulic dynamics of individual generating units.

拟议的GOALI研究概括了一个单一的发电机组的寿命延长控制的概念，负载控制，以几个发电机组互连在一个共同的电网。 本文提出了一种新的寿命延长负荷调度系统（LELDS）的概念，其特点是：采用两层结构，对电网上的单个发电机组进行负荷调度和寿命延长，在上层进行基于健康监测的负荷调度和机组组合，在上层进行负荷调度和机组组合，在上层进行负荷调度和机组组合。在低层进行的单机机组局部鲁棒延寿控制研究，目的是探讨所提出的寿命延长负载调度系统（LELDS）优于没有明确解决设备健康问题的传统负载调度系统（LDS）（即，发电厂的结构耐久性。由于在放松管制的环境中，机组可靠性已成为最主要的经济因素之一，市场定价和对供应或损失的能量的惩罚往往远远超过输电损耗考虑或发电水平微调的经济性。 LELDS将包括几个动态和稳态能源服务的要求，这是重要的调控电网作为一个整体。 在目前的电力放松管制的环境中，收入和经济处罚被分配给每个电网能量控制服务，从而与先前的受管制环境相比，提高了它们对发电机组和公用事业公司的影响。 从这个角度来看，拟议的LELDS的潜在好处包括：提高电力系统的可靠性和降低发电成本，减少维护，并提高发电机组的可用性，以满足能源市场交易以及电网上的本地负载波动。 拟议研究的另一个特点是LELDS和发电机组之间的实时信息交换，用于远程健康监测、诊断和维护。 这些概念的可行性将在一个试验台上进行验证，该试验台将模拟电力系统电网沿着相关的机电和热工水力动态的各个发电机组。