CHEN Yongcheng. Optimization of protection and control system of a 660MW ultra supercritical unit without desulfurization bypass[J]. Thermal power generation, 2013, 42(11): 164-166.
CHEN Yongcheng. Optimization of protection and control system of a 660MW ultra supercritical unit without desulfurization bypass[J]. Thermal power generation, 2013, 42(11): 164-166.DOI:
According to the desulfurization system that retained an independent booster fan and added bypass blocking plates
optimizations like increasing four desulfurization system failures to trip boiler in the unit protection control logic were conducted.On the basis of the RB test results
the feed forward control and its coefficient of the blade control strategy for the booster fan under normal condition and fault condition were improved.The RB test results showed that
by the improved control strategy of booster fan blade under the RB conditions
the variation of the booster fan inlet pressure was 1 309Pa
which was significantly decreased compared to that before the improvement(2 065Pa).