核电厂电力电子化CRDM电源数字控制系统设计  

Design of Digital Control System for CRDM Power Supply for Power Electronics in Nuclear Power Plants

作　　者：芮月晨 何亮[1] 肖国春[2] 游洲 刘飞洋[1] 陈凯旋 骆攀 RUI Yuechen;HE Liang;XIAO Guochun;YOU Zhou;LIU Feiyang;CHEN Kaixuan;LUO Pan(Nuclear Power Institute of China,Chengdu 610213,China;State Key Laboratory of Electrical Insulation and Power Equipment(Xi’an Jiaotong University),Xi’an 710049,China)

机构地区：[1]中国核动力研究设计院,四川成都610213 [2]电力设备电气绝缘国家重点实验室(西安交通大学),陕西西安710049

出　　处：《自动化仪表》2023年第S01期37-43,共7页Process Automation Instrumentation

基　　金：国家自然科学基金资助项目(51277146)。

摘　　要：为了使核电厂反应堆电力电子化控制棒驱动机构(CRDM)电源在不同工况下安全、可靠运行,研究了其数字控制系统设计方法。重点考虑了采样保持器和数字控制延时对系统稳定性的影响,并采用最佳阻尼设计方法对各级变换器控制器参数进行整定,形成了一套完整的电力电子化CRDM电源数字控制系统设计方法。仿真结果表明,系统稳态性能良好,并能够在负荷突变和故障切换等工况下快速、平稳地过渡到新稳态。该结果验证了所提设计方法的正确性和有效性。该设计方法对核电厂其他电力电子装置数字控制系统设计具有一定的指导意义。To make the power electronic control rod drive mechanism(CRDM)power supply for nuclear power plant reactors operate safely and reliably under different working conditions,its digital control system design method is studied.Focusing on the influence of sampling keeper and digital control delay on system stability and adopting the optimal damping design method to rectify the converter controller parameters at all levels,a complete set of digital control system design methods for power electronic CRDM power supply is formed.The simulation results show that the system has good steady state performance and can quickly and smoothly transition to the new steady state under operating conditions such as sudden load change and fault switching.The results verify the correctness and effectiveness of the proposed design method.The design method is of great significance in guiding the design of digital control systems for other power electronic devices in nuclear power plants.

关 键 词：电力电子 控制棒驱动机构 脉冲宽度调制整流器 直流/直流变换器 系统建模 数字控制 

分 类 号：TH-86[机械工程]