Modular Model For Performance Calculation Of Units And Practical Problems Analysis

In order to realize the purpose of on-line monitoring the running state of power units, adjust the operation parameters rationally and increase the running performance, this paper selects large thermal power unit as the research object, combining with the actual need of thermal power plant, a comprehensive analysis of main operational parameters and technical economy indexes is put forward. As to the realization of the system, building an accurate mathematical model firstly, then using the modular modeling method to establish performance calculation module of thermal system, finally a set of on-line modular performance analysis system of power plant is developed. At the same time, giving the brief analysis and the solution of the preliminary discussion about the practical problems that performance calculation is facing, next introducing prediction and validation of the data based on BP neural network model in detail, then analyzing uncertainty and verifiability of the performance calculation simply. At last, taking advantage of thermal power plant data acquisition system to gain the real-time operating data, calculating all the performance parameters of some power unit and giving the results show. The system realized on-line calculation of performance parameters and played an important function in improving the operational economics and security.