Huadian Technology ›› 2015, Vol. 37 ›› Issue (1): 16-18.

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Design and simulation of local control logic of runback

  

  1. (1.School of Control and Computer Engineering, North China Electric Power University, Baoding 071003, China; 2.Beijing Dianyan Huayuan Power Technique Company Limited, Beijing 102200, China)
  • Published:2015-01-25

Abstract: Abstract:There was some defect in primary air fan RB design of the 320MW coalfired unit of Qinhuangdao Thermal Power Plant, and after the RB signal occurred, the mills can not stop sequentially. Aiming at this problem, the design was improved. Under various operation conditions of the mills, the designed improving scheme was simulated by MATLAB simulation software. The result of the simulation test shows that the improved design scheme can satisfy the RB requirement of the unit, and the unit can operate safely and stably.

Key words: Keywords:runback(RB), mill, simulation test, design, MATLAB simulation software