WANG Yanjie1, ZHAO Zhidan2, WU Lianjun3, et al. CONTROL STRATEGY OF RETROFITTING MOTOR-DRIVEN FEED WATER PUMP INTO TURBINE-DRIVEN FEED WATER PUMP FOR 300 MW UNITS AND APPLICATION THEREOF[J]. Thermal power generation, 2010, 39(8): 85-87.
WANG Yanjie1, ZHAO Zhidan2, WU Lianjun3, et al. CONTROL STRATEGY OF RETROFITTING MOTOR-DRIVEN FEED WATER PUMP INTO TURBINE-DRIVEN FEED WATER PUMP FOR 300 MW UNITS AND APPLICATION THEREOF[J]. Thermal power generation, 2010, 39(8): 85-87.DOI:
Directing against retrofitting original feed water system(having three motor-driven feed water pumps) of 330 MW unit in Huai'yin Power Plant into a feed waster system with one turbine-driven feed water pump and two motor-driven feed water pumps
a new set of feed water control system has been designed.In order to ensure the real-time control of feed water system in case of one turbine-driven feed water pump being in operation and two motor-driven feed water pumps being standby
the trip of turbine-driven feed water pump
the operation of motor-driven feed water pumps
as well as their control interlocking signals are connected to the control system by using hardwires
results of application show that the new feed water control systme has good control quality.