公开(公告)号：EP4257878A1

公开(公告)日：2023-10-11

申请号：EP21908731.9

申请日：2021-09-30

申请人： China Nuclear Power Technology Research Institute Co., Ltd. ,  China General Nuclear Power Corporation ,  CGN Power Co., Ltd.

发明人： ZHU, Jianmin ,  CHEN, Tianming ,  WANG, Na ,  HU, Yousen ,  ZHANG, Wei ,  LU, Xianghui ,  ZHOU, Mingjia ,  WANG, Kai ,  WANG, Xiaoting ,  WANG, Weiru ,  WEI, Danjing ,  LI, Bingwen ,  LIU, Yiran ,  HU, Yisong ,  GAO, Yaxin

IPC分类号： F22B1/02 ,  F22B35/00 ,  F22B37/42

摘要： Disclosed are a steam generator system, a steam generator pressure control system, and a control method therefor. The steam generator pressure control system comprises a first control module for obtaining a pressure deviation value; a second control module for measuring and calculating a flow difference value between an outlet flow value and an inlet flow value, and then adding the flow difference value and the pressure deviation value together to obtain a first opening degree value for controlling a first valve of a water supply regulation valve group; and a third control module for measuring a steam intake pressure value of a steam turbine, and comparing the steam intake pressure value with a preset reference threshold value, so as to obtain a second opening degree value for controlling a second valve of the water supply regulation valve group. In the steam generator system, the steam generator pressure control system, and the control method therefor of the present invention, the opening and closing conditions of the water supply regulation valve group is controlled by means of a first control module, a second control module and a third control module, such that a steam generator is controlled, thereby satisfying the requirements for both coarse regulation and fine regulation.

公开(公告)号：EP4432302A1

公开(公告)日：2024-09-18

申请号：EP22894078.9

申请日：2022-01-13

申请人： China Nuclear Power Technology Research Institute Co., Ltd ,  China General Nuclear Power Corporation ,  CGN Power Co., Ltd. ,  China Nuclear Power Engineering Co., Ltd.

发明人： LU, Xianghui ,  HU, Yisong ,  FENG, Yingjie ,  ZHANG, Yijun ,  WANG, Weiru ,  HU, Yousen ,  LI, Kejia ,  HE, Mingtao ,  HUANG, Yu ,  WU, Yuting ,  CHEN, Tianming ,  MAO, Yulong ,  ZHANG, Wei ,  PENG, Sitao ,  CHENG, Yanhua

IPC分类号： G21C17/00 ,  G21C17/108

CPC分类号： Y02E30/30

摘要： An online protection method and system. The online protection method comprises: obtaining calibration state data that is periodically updated (S10); performing reconstruction calculation on reactor core power distribution data corresponding to the total rod positions of control rods (S20); obtaining the current total rod position of each control rod in real time, and selecting a group of reactor core power distribution data from a plurality of groups of reactor core power distribution data as the current reactor core power distribution data (S30); calculating a maximum LPD value and a minimum DNBR value corresponding to the current total rod position of the control rod (S40); and according to the calculated maximum LPD value, the calculated minimum DNBR value, a preset LPD setting value, and a preset DNBR setting value, determining whether to trigger a reactor shutdown signal (S50).