The transfer of pressurized water reactor(PWR)technology from France to China is an important event in the history of Sino-French scientific and technological relations.China has gradually achieved self-reliance in th...The transfer of pressurized water reactor(PWR)technology from France to China is an important event in the history of Sino-French scientific and technological relations.China has gradually achieved self-reliance in the field of PWR technology through the introduction and subsequent absorption of France's 900 MW reactors.Compared with the process of introducing and absorbing similar technology from the United States by France,China's experience has been more complicated.This circumstance reflects the differences in the nuclear power technology systems between the two countries.France's industrial strength and early acquisition of nuclear power technology laid a solid foundation for mastering PWR technology.On the other hand,although China established a weak foundation through the implementation of the"728 Project,"and tried hard to negotiate with France,the substantive content of the technology transfer was very limited.By way of the policy transition from"unhooking of technology and trade"to"integration of technology and trade,"China ultimately accomplished the absorption and innovation of PWR technology through the Ling'ao NPP.展开更多
Good practices of maintenance optimization in nuclear power field need to be effectively consolidated and inherited,and maintenance optimization can provide technology support to create a long-term reliable and econom...Good practices of maintenance optimization in nuclear power field need to be effectively consolidated and inherited,and maintenance optimization can provide technology support to create a long-term reliable and economic operation for nuclear power plants( NPPs) especially for a large number of nuclear powers under construction. Based on the development and application of maintenance template in developed countries,and combining with reliability-centered maintenance( RCM) analysis results and maintenance experience data over the past ten years in domestic NPPs, the development process of maintenance template was presented for Chinese pressurized water reactor( PWR) NPP,and the application of maintenance template to maintenance program development and maintenance optimization combined with cases were demonstrated. A shortcut was provided for improving the efficiency of maintenance optimization in domestic PWR NPP,and help to realize a safe,reliable,and economic operation for domestic NPPs.展开更多
This paper presents a novel method to solve old problem of water level control system of pressurized water reactor (PWR) steam generator (SG) of nuclear power plant (NPP) .The level control system of SG plays an impo...This paper presents a novel method to solve old problem of water level control system of pressurized water reactor (PWR) steam generator (SG) of nuclear power plant (NPP) .The level control system of SG plays an important role which effects the reliablity,safty,cost of SG and its mathematical models have been solved.A model of the conventional controller is presented and the existing problems are discussed. A novel rule based realtime control technique is designed with a computerized water level control (CWLC) system for SG of PWR NPP.The performance of this is evaluated for full power reactor operating conditions by applying different transient conditions of SG′s data of Qinshan Nuclear Power Plant (QNPP).展开更多
压水堆(pressurized water reactor,PWR)核电站一次侧运行水化学的优化控制是减少辐射剂量,防止关键设备腐蚀损伤,保持燃料性能的最经济、最有效的途径之一,其本质是通过水化学与设备材料的交互作用改善材料表面氧化膜的特性.综述了PWR...压水堆(pressurized water reactor,PWR)核电站一次侧运行水化学的优化控制是减少辐射剂量,防止关键设备腐蚀损伤,保持燃料性能的最经济、最有效的途径之一,其本质是通过水化学与设备材料的交互作用改善材料表面氧化膜的特性.综述了PWR核电站一次侧主冷却剂水化学与设备材料腐蚀损伤关系的研究现状及问题,介绍了近年来在PWR一次侧注Zn水化学(Zn-injected water chemistry,ZWC)方面的应用基础研究进展.展开更多
针对压水堆核电厂的运行特性,研究核电厂接入电网后对电网低频振荡的影响,这对于核电厂及电力系统的稳定运行与及时实施有效地控制具有重要的意义。利用特征值分析法搜索2015年湖北电网中与大畈核电相关的振荡模式,并通过矩阵束分析法...针对压水堆核电厂的运行特性,研究核电厂接入电网后对电网低频振荡的影响,这对于核电厂及电力系统的稳定运行与及时实施有效地控制具有重要的意义。利用特征值分析法搜索2015年湖北电网中与大畈核电相关的振荡模式,并通过矩阵束分析法对扰动后的电网功率振荡曲线进行模态分析与曲线拟合来识别电网发生扰动后的主导振荡模式,最后在与该模式强相关的大畈核电机组上配置电力系统稳定器(power system stabilizer,PSS)来达到提高系统阻尼从而提高系统稳定性的目的。仿真结果表明,扰动后会激发电网中若干弱阻尼振荡模式从而引起大畈核电及其邻近地区发生较大幅度的功率振荡,而PSS的合理配置可以有效地抑制低频振荡从而保证系统的安全稳定运行。展开更多
基金a phase study of a key project of the Fourteenth Five-Year Plan of the Institute for the History of Natural Sciences,Chinese Academy of Sciences:“A Comparative Study of the Sino-Foreign History of Scientific and Technological Innovation:The Road to Scientific and Technological Self-Reliance and Self-Improvement”,E2291J01。
文摘The transfer of pressurized water reactor(PWR)technology from France to China is an important event in the history of Sino-French scientific and technological relations.China has gradually achieved self-reliance in the field of PWR technology through the introduction and subsequent absorption of France's 900 MW reactors.Compared with the process of introducing and absorbing similar technology from the United States by France,China's experience has been more complicated.This circumstance reflects the differences in the nuclear power technology systems between the two countries.France's industrial strength and early acquisition of nuclear power technology laid a solid foundation for mastering PWR technology.On the other hand,although China established a weak foundation through the implementation of the"728 Project,"and tried hard to negotiate with France,the substantive content of the technology transfer was very limited.By way of the policy transition from"unhooking of technology and trade"to"integration of technology and trade,"China ultimately accomplished the absorption and innovation of PWR technology through the Ling'ao NPP.
文摘Good practices of maintenance optimization in nuclear power field need to be effectively consolidated and inherited,and maintenance optimization can provide technology support to create a long-term reliable and economic operation for nuclear power plants( NPPs) especially for a large number of nuclear powers under construction. Based on the development and application of maintenance template in developed countries,and combining with reliability-centered maintenance( RCM) analysis results and maintenance experience data over the past ten years in domestic NPPs, the development process of maintenance template was presented for Chinese pressurized water reactor( PWR) NPP,and the application of maintenance template to maintenance program development and maintenance optimization combined with cases were demonstrated. A shortcut was provided for improving the efficiency of maintenance optimization in domestic PWR NPP,and help to realize a safe,reliable,and economic operation for domestic NPPs.
文摘This paper presents a novel method to solve old problem of water level control system of pressurized water reactor (PWR) steam generator (SG) of nuclear power plant (NPP) .The level control system of SG plays an important role which effects the reliablity,safty,cost of SG and its mathematical models have been solved.A model of the conventional controller is presented and the existing problems are discussed. A novel rule based realtime control technique is designed with a computerized water level control (CWLC) system for SG of PWR NPP.The performance of this is evaluated for full power reactor operating conditions by applying different transient conditions of SG′s data of Qinshan Nuclear Power Plant (QNPP).
文摘压水堆(pressurized water reactor,PWR)核电站一次侧运行水化学的优化控制是减少辐射剂量,防止关键设备腐蚀损伤,保持燃料性能的最经济、最有效的途径之一,其本质是通过水化学与设备材料的交互作用改善材料表面氧化膜的特性.综述了PWR核电站一次侧主冷却剂水化学与设备材料腐蚀损伤关系的研究现状及问题,介绍了近年来在PWR一次侧注Zn水化学(Zn-injected water chemistry,ZWC)方面的应用基础研究进展.
文摘针对压水堆核电厂的运行特性,研究核电厂接入电网后对电网低频振荡的影响,这对于核电厂及电力系统的稳定运行与及时实施有效地控制具有重要的意义。利用特征值分析法搜索2015年湖北电网中与大畈核电相关的振荡模式,并通过矩阵束分析法对扰动后的电网功率振荡曲线进行模态分析与曲线拟合来识别电网发生扰动后的主导振荡模式,最后在与该模式强相关的大畈核电机组上配置电力系统稳定器(power system stabilizer,PSS)来达到提高系统阻尼从而提高系统稳定性的目的。仿真结果表明,扰动后会激发电网中若干弱阻尼振荡模式从而引起大畈核电及其邻近地区发生较大幅度的功率振荡,而PSS的合理配置可以有效地抑制低频振荡从而保证系统的安全稳定运行。
