中国电机工程学报2017，Vol.37Issue(3)：696-704,9.DOI:10.13334/j.0258-8013.pcsee.152421
核电机组接入电网的低频保护综合风险评估模型与方法
Model and Method of Low Frequency Protector's Synthesized Safety Risk Assessment for Nuclear Power Plant Connected to the Grid
摘要
Abstract
The safety risk assessment theory was applied in coordination control of grid with nuclear power units. The model and method of low frequency protector's synthesized safety risk assessment, for grid with nuclear power units, were put forward. Synthesized safety risk assessment method related to low frequency risk index used to evaluate the influence caused by frequency decreasing on NPPs and grid, and device risk index based on the protectors' mechanism. The synthesized risk model was established, the safety risk matrix was structured afterwards. Synthesized safety risk value as well as risk variation value of low frequency protectors, including NPP's cooling main pump steam low speed protector, turbine low frequency protector, and power system's automatic low frequency load shedding device, were calculated. Based on which, risk index' safety risk value and protectors' safety risk sensitivity were analyzed. Modeling simulation demonstrated the rationality of risk method and the effectiveness of the risk model. The model provides theoretical foundation and reference basis to protectors' parameter-optimized scheme as well as the coordination and cooperation between NPP and grid.关键词
核电机组/电网/安全风险/低频保护/协调控制Key words
nuclear power plant/power system/safety risk/low frequency protector/coordination control分类
信息技术与安全科学引用本文复制引用
刘田,赵洁,吴国旸,刘涛,刘涤尘,赵语,王力,赵婷..核电机组接入电网的低频保护综合风险评估模型与方法[J].中国电机工程学报,2017,37(3):696-704,9.基金项目
国家自然科学基金项目(51307123,51677137) （51307123,51677137）
国网公司科技项目XT71-15-060《压水堆核电机组堆芯和一回路、二回路系统建模与参数辨识技术研究》. Project Supported by National Natural Science Foundation of China (51307123, 51677137) （51307123, 51677137）
Project Supported by XT71-15-060 (Modeling and Parameter Identification Research of Core, Primary and Secondary Circuit System in PWR). （Modeling and Parameter Identification Research of Core, Primary and Secondary Circuit System in PWR）
