作者：张玉皓1, 顾煜炯1, 马晓腾1, 赵鹏程1, 杨昆1, 龚明祥2
作者单位：1. 华北电力大学能源动力与机械工程学院，北京 102206;
2. 中广核苏州热工研究院有限公司，江苏 苏州 215000
关键词：核电汽轮发电机组;轴系扭振;在线监测
摘要：
针对核电汽轮发电机组轴系的扭振问题及核电安全性需求，设计并研制应用于核电半速机的轴系扭振在线监测装置。该装置可以在线监测汽轮机组轴系扭振相关的参数，实时分析轴系的扭振状态。故障分析过程中，根据扰动力矩的形式分别采用模态叠加法和逐步积分法，对多个危险截面进行响应分析，在线评价轴系的扭转疲劳安全性。通过对扭振在线监测、分析过程涉及的理论、方法和技术的整合，形成一套扭振监测与分析技术解决方案。阐述该装置的关键技术原理与工程化设计流程，完成从理论框架到工程技术的转化，并在国内核电汽轮发电机组投入使用。
Design and application of torsional vibration online monitoring device for nuclear power turbine generator set
ZHANG Yuhao1, GU Yujiong1, MA Xiaoteng1, ZHAO Pengcheng1, YANG Kun1, GONG Mingxiang2
1. School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China;
2. Suzhou Nuclear Power Research Institute Co., Ltd., Suzhou 215000, China
Abstract: In view of the torsional vibration problem of the nuclear power turbo-generator shafting and the safety requirement of nuclear power, an online monitoring device for torsional vibration of the shafting is designed and developed. The device can monitor the parameters related to the torsional vibration of the turbine shafting on line and analyze the torsional vibration state of the shafting in real time. In the process of fault analysis, according to the form of disturbance torque, mode superposition method and step-by-step integration method are used to analyze the response of several dangerous sections and evaluate the torsional fatigue safety of shafting online. Through the integration of theory, method and technology involved in the process of online monitoring and analysis of torsional vibration, a set of technical solutions for torsional vibration monitoring and analysis is formed. The key technical principle and engineering design process of the unit are described, and the transformation from theoretical framework to engineering technology is completed, and the unit is put into use in domestic nuclear power turbo generator set.
Keywords: nuclear power turbine generator set;shafting torsional vibration;online monitoring
2020, 46(7):125-132 收稿日期: 2019-11-17;收到修改稿日期: 2019-12-03
基金项目: 国家重点研发计划资助项目（2017YFB0603904-4）；中央高校基金青年培养项目（JB2018109）
作者简介: 张玉皓(1985-),男,内蒙古包头市人,博士研究生,研究方向为旋转机械的状态监测与故障诊断
参考文献
[1] 顾煜炯. 汽轮发电机组扭振安全性分析与应用[M]. 北京：科学出版社, 2013.
[2] 程时杰, 曹一家, 江全元. 电力系统次同步振荡的理论与方法[M]. 北京：科学出版社, 2009.
[3] LI K, LI X, FENG M. Subsynchronous oscillation damping characteristic analysis for hybrid HVDC based on VSC and CSC[C]//IEEE International Conference on Power System Technology, 2014:2089-2103.
[4] IEEE SUBSYNCHRONOUS RESONANCE WORKING GROUP. Countermeasures to subsynchronous resonance problems[J]. IEEE Transactions on Power Apparatus and Systems, 1980(5): 1810-1818
[5] GAUTAM D, VITTAL V, HARBOUR T. Impact of increased penetration of DFIG-based wind turbine generators on transient and small signal stability of power systems[J]. IEEE Transactions on Power Systems, 2009, 24(3): 1426-1434
[6] 李宽,王军,赵斌超,等. 风火捆绑经HVDC送电引起轴系扭振研究[J]. 电工技术学报, 2017, 32(6): 115-122
[7] 赵国梁, 宋家骅. 短路及重合闸过程汽轮发电机轴系扭振的计算分析[J]. 中国电力, 1995(7): 7-11
[8] 何成兵, 顾煜炯, 董玉亮. 非同期并列时汽轮发电机组轴系弯扭耦合振动分析[J]. 中国电机工程学报, 2007(9): 92-98
[9] BERGER H L, KULIG S T. A new generation of torsional stress analyzers for turbine-generators[C]//Rotordynamics ’92. Springer London. 1992： 27-34.
[10] WANG P, DAVIES P, STARKEY J M, et al. A torsional vibration measurement system[C]//IEEE, 1992: 803-807.
[11] POURBEIK P，RAMEY D，SAMRA A,et al. Torsional interaction between electrical network phenomena and turbine-generator shafts[R]. Electric Power Research Institute (EPRI), 2005.
[12] DOBBINS D. Torsional vibration diagostics for rotating equipment torsional data analysis of two reactor coolant pumps from the tva sequoyah nuclear plant during three years of service[R]. Electric Power Research Institute (EPRI), 2005.
[13] 杜极生. 国内外关于扭振监测装置的研究综述[J]. 汽轮机技术, 1991(5): 16-19
[14] 李森林, 李向阳, 吴雪黎, 等. 发电机组轴系扭振监测装置的应用分析[J]. 东北电力技术, 2018, 39(11): 30-34
[15] 余畅, 苏寅生, 黄河. 盘南电厂汽轮机组轴系扭振保护装置启动情况分析[J]. 南方电网技术, 2010, 4(3): 92-95
[16] 顾煜炯, 何成兵, 杨昆. 汽轮发电机组轴系扭振监测与分析系统[J]. 仪器仪表学报, 2001(S1): 269-270+273
[17] LI Z, ZHAO P, NI Q, et al. Torsional vibration monitoring on half-speed turbine of nuclear power plant[C]//International Conference on Nuclear Engineering. 2017：66177.
[18] 汽轮发电机轴系扭振监测和保护装置技术要求：NB T 42085—2016[S].北京：中国质检出版社，2016.
[19] LISKA J, JAKL J, KUNKEL S. Measurement and evaluation of shaft torsional vibrations using shaft instantaneous angular velocity[J]. ASME. J. Eng. Gas Turbines Power, 2018, 141(4): 041029-041029-5
[20] 赵鹏程. 汽轮发电机组轴系扭振机理及安全性分析[D]. 北京：华北电力大学(北京), 2019.
