ZHAO Zhidan1, DUAN Yuanguang2, LIANG Chao1, et al. OPTIMIZATION OF ANALOG CONTROL SYSTEM FOR ULTRA-SUPERITICAL 660 MW UNIT IN HUADIAN WUHU POWER PLANT[J]. Thermal power generation, 2011, 40(6): 61-64.
ZHAO Zhidan1, DUAN Yuanguang2, LIANG Chao1, et al. OPTIMIZATION OF ANALOG CONTROL SYSTEM FOR ULTRA-SUPERITICAL 660 MW UNIT IN HUADIAN WUHU POWER PLANT[J]. Thermal power generation, 2011, 40(6): 61-64.DOI:
the ultra-supercritical 660 MW unit in Huadian Wuhu Power Plant was unable to satisfy the load changing rate of 2%/min under the automatic generation control(AGC) mode due to very bad coal quality
leading to large deviation of main steam pressure and large magnitude fluctuation of main and reheated steam temperature resulting from frequent and large magnitude load change
and frequent coal interruption in the coal feeder
makeing the unit being unable to operate under coordinated control mode.For this
based on the original control strategy
the main control strategies
such as coordinated control etc.
have been corrected
and the related control function and regulation parameters being optimized.After optimization
the unit can suit to load change in a large range under AGC mode.