The Protection And Control Strategy Of 300MW Generating Unit Circulating Fluidized Bed Boiler Furnace

Inner Mongolia JinTai Power Plant circulating fluidized bed boiler power plant generating units based on the debugging on the circulating fluidized bed boiler (CFB) of the development status of the characteristics are described in this paper,. In the debugging process of the circulating fluidized bed protection, automatic control method is optimized to sum up and elaborate. Through the coordinated control system disturbance test, through the machine, furnace, and a master air, secondary air control strategies and parameter changes, improve system reliability and control accuracy; through the AGC (automatic generation control) experiment to test a large the scope of the reliability of automatic control variable load, and Inner Mongolia Power Grid circulating fluidized bed boiler power plant AGC tests and tests based on accumulated experience; analyzes and summarizes the fluidized bed unit RB (Runback, fast load reduction) test the characteristics of , by modifying the configuration and optimization of adjustable parameters, an increase of automatic control systems to deal with an important auxiliary tripping incidents. Practice has proved that circulating fluidized bed boiler power plant in Inner Mongolia JinTai Power Plant protection action is accurate and reliable generating units, the logic is correct and has strong practical; running, the automatic control system significantly reduced the workload of running, an increase of unit operation economy.Based on the domestic power plant construction situation, most units are in grabbing period under the condition of the substation, so to control system of researchers study little time. Circulating fluidized bed boiler thermodynamic automatic control, especially burning automatic control aspects of the problem has become its further popularized the main obstacle, circulating fluidized bed boiler running automation has become one of the keys to its toward viability. Homebred circulating fluidized bed boiler combustion process auto-control of design and implementation, and there are still many imperfections in place, according to the circulating fluidized bed boiler combustion operation characteristics and boiler combustion process of automatic control system is optimized renovation, on the unit safe and economic operation is very necessary.