关键词: 核电机组, CPR1000, Runback试验, 协调控制

Abstract: The runback(RB) test shall be carried out for the newly built pressurized water reactors prior to commercial operation to verify the completeness of RB control strategy, proper protection parameters and the compatibilities of dynamic response. Through the in-depth study on the unit control mode, RB control strategy, load reduction runback rate and the loop of objective load formulation in CPR1000 in combination with the special requirements of nuclear power station control, detailed emergency plan and precaution measures of the test are made before the test. The RB dynamic response characteristics of the CPR1000 unit are obtained through the analysis on the test results. The testing process can also provide a reference for RB test on other units. It is demonstrated from the operation of the unit that the normal operation of RB control function can greatly improve the safety and economic benefit of the pressurized water reactor. It also creates favorable conditions for the stable operation of the power grid simultaneously.

Key words: nuclear power unit, CPR1000, RB test, cooperative-control