Load Dispatch Control of Electric Power Systems Based on Equipment Health

拟议的目标研究概括了将单一发电机组的寿命延长控制的概念，将负荷控制扩展到在公共电网上互联的多个发电机组。提出了一种新的延长寿命负荷调度系统(LELDS)的概念，该系统的特点是：基于健康监测的负荷调度和机组组合，在上级进行；在下级进行局部稳健的机组寿命延长控制；与传统负荷调度系统(LDS)相比，该系统的可行性和可行性。由于机组可靠性已经成为放松管制环境中最主要的经济因素之一，市场定价和对供应或损失的能源的惩罚往往远远超过传输损耗考虑或发电水平微调的经济考虑。LELDS将包括几种动态和稳态能源服务的要求，这些服务对整个电网的调控非常重要。在当前电力放松管制的环境下，收入和经济处罚被分配给每一项电网能源控制服务，从而提高了它们对发电机组和公用事业公司的影响，这与以前的监管环境形成了对比。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，增加发电机组的可用性，以满足能源市场交易以及电网上波动的本地负荷。拟议研究的另一个特点是在LELD和发电机组之间交换实时信息，以进行远程健康监测、诊断和维护。这些概念的可行性将在试验台上进行验证，该试验台将模拟电力系统电网以及各个发电机组的相关机电和热工水力动力学。

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.