关键词: 火电机组, 节能调度, 在线监测系统, 煤耗试验

Abstract: With the capability of conducting energy-saving dispatch permitted in domestic power grids, it is necessary to study the key issues related to the energy-saving dispatch, such as, how to acquire the reliable energy consumption data of thermal power units and how to realize the fair unit commitment sequence. Based on the pilot projects in five provinces, AEPRI has carried out a series of coal consumption experiments in the thermal power units of Anhui province and has conducted the analysis on the correlation between unit commitment sequence, coal consumption and pollutant discharge. The framework and operation mechanism of the online power unit monitoring system is proposed and the energy-saving dispatching system for thermal power units is developed. In this dispatching system, the energy consumption index is calculated in the data acquisition server of each unit, and the results are all uploaded to the central server. The configuration saves the hardware investment and network resources significantly. The system reliability also gets improved. The study also indicates that a scientific and reasonable technical roadmap should be developed for the dispatching system and its operation mechanism. The dispatching system may take on the role in energy-saving and emission reduction only when the existing issues are systematically analyzed and solved. Therefore, further studies on this topic are necessary.

Key words: thermal power unit, energy-saving dispatch, online monitoring system, coal consumption performance test