Study on Coordination Control of Subcritical Circulating Fluidized Bed Units with Win-Win Source Network

• Format: Article
• Language: zho
• Published: The Northwestern Polytechnical University 2019-06-01
• Series: Xibei Gongye Daxue Xuebao
• Subjects: coordination control of furnace and machine network; cps standard; subcritical circulating fluidized bed unit
• Online Access: https://www.jnwpu.org/articles/jnwpu/full_html/2019/03/jnwpu2019373p621/jnwpu2019373p621.html

Aiming at the large delay and inertia characteristics of circulating fluidized bed units, a coordinated control method of circulating fluidized bed units under the CPS evaluation system of power grid is proposed. Firstly, starting from the power grid performance evaluation index CPS, the formation characteristics of regional control error ACE in the CPS index are analyzed. Then, according to the operation characteristics of circulating fluidized bed units, the feasibility of realizing the boiler-turbine-grid coordinated control system is revealed. Then, the switch controller based on the energy state of the boiler and the optimal controller based on CPS standard are designed to realize the boiler network. Finally, through simulation experiments, it is verified that the proposed control methods not only meets the requirements of power grid for unit evaluation better, but also takes into account the overall energy state of the boiler to improve the control performance of main steam pressure, and achieves the win-win control effect of circulating fluidized bed units and power grid.