Distributed Control System In A Direct-fired Type Of Biomass Power Plant Applications And Research

This thesis is concerned with the control project and system configuration for major electric power generation in the Guoneng Cheng' an Biomass Power Plant. Focusing on the terminal controlling system in a typical station that uses bio substances for power generation, we studied advantages of such a station inapplication, safety, stability, and economization. Moreover, our study provided references for the application of the DCS system in stations that characterize power generation from bio substances, through an analysis to the characteristics of the terminal system in operation in Guoneng Cheng' an Biomass Power Plant.The thesis contains six chapters. The first chapter presents an introduction to the application of power generation using bio substances both in China and in the world Future development of a bio-power station in the country is also proposed. Next, characteristics of technology and system structures of direct burn biomass power plant are discussed, with an emphasis on the optimal combustion-controlling method for the circulating fluidized bed boiler. The water level of steam drum of biomass power plant is also investigated. All discussion and analysis are based on the distribution control system (DCS)manufactured by Beijing State Power Zhishen automation EDPF-NT DCS. In conclusion, our study does not only investigate the current application and major technological characteristics of distribution control system(DCS)in power-generating stations, but also provides references for the development of the controlling technology in biomass power plant in China.