三峡水利枢纽地下电站机组流量测量与效率分析
|
摘要
根据美国Accusonic公司18声路大口径超声波流量计的技术特点,并结合三峡水利枢纽地下电站30号机组和31号机组的测流需求,建立了一套实时有效的流量测量系统。该系统能实现在线效率计算与分析,并给出了系统的整体设计方案及技术实现;可在系统中对机组流量计装置进行远程控制,也可以通过独立设计的切换箱控制现地单元来读取其他机组流量计装置的换能器所测量到的信号;同时还能结合人机界面进行在线计算水轮机效率、绘制效率曲线及管道流态分布图等。运用该系统,对三峡水利枢纽电站机组进行了现场效率实验,结果表明该系统的测流精度和所提供的数据完全能够满足试验的要求。
Given the technical features of the 18 acoustical circuit large diameter ultrasonic flow meters that are manufactured by Accusonic, an US company, and in order to measure water flow for unit 30 and unit 31 of Three Gorges underground hydropower station, a set of real time and effective flow measurement system was established. The system is able to conduct on-line efficiency calculation and analysis. This paper introduces the overall design scheme as well as technical implementation. The system can remotely control unit flow meter device and read the signal captured by the transducer of other unit flow meter through independently-designed locale control unit of switching box. At the same time, we can calculate the efficiency of hydraulic turbine, plot the efficiency curve and the scattergram of the distribution of pipeline flow regime by a human-machine interface, and etc. The system was used to test the efficiency of the units of Three Gorges underground power station, and the test results showed that its accuracy and the data fully met the standards.
Given the technical features of the 18 acoustical circuit large diameter ultrasonic flow meters that are manufactured by Accusonic, an US company, and in order to measure water flow for unit 30 and unit 31 of Three Gorges underground hydropower station, a set of real time and effective flow measurement system was established. The system is able to conduct on-line efficiency calculation and analysis. This paper introduces the overall design scheme as well as technical implementation. The system can remotely control unit flow meter device and read the signal captured by the transducer of other unit flow meter through independently-designed locale control unit of switching box. At the same time, we can calculate the efficiency of hydraulic turbine, plot the efficiency curve and the scattergram of the distribution of pipeline flow regime by a human-machine interface, and etc. The system was used to test the efficiency of the units of Three Gorges underground power station, and the test results showed that its accuracy and the data fully met the standards.
引文
[1] 王池,孟涛,胡鹤鸣.三峡工程超声流量计的测量准确度评估[J].中国计量,2012(3):75-78.
[2] 苗志强,梁海雷.超声波流量计的特点及在电厂力量测量上的应用[J].企业技术开发,2013,32(17):117-118.
[3] 姚仁民,卫东辉,王好锋.三门峡水电站经济运行与探索[J].人民黄河,2017,39(7):15-17.
[4] 郭乐.三峡电站机组756MW运行水资源利用影响分析[J].水力发电,2015,41(12):93-96.
[5] 张曙光,周曼,三峡枢纽水库运行调度[J].中国工程科学,2011,3(7):61-65.
[6] 杨建设.水轮机效率公式的现状机讨论[J].华北水利水电学院学报,2000,21(4):24-27.
[7] 鲁俊,王江淮,李伟,等.水轮机效率精细化计算分析方法简析[J].华电技术,2016,38(8):63-65.
[8] 李定川.超声流量计应用技术综述[J].智慧工厂,2017(5):57-60.
[9] 陈绪鹏,康永林,叶青,等.溪洛渡电站机组流量与效率超声波流量系统开发[J].人民长江,2015,46(11):88-91.
[10] 司庆华,徐海波,颜云松,等.Modbus协议在安全稳定控制装置中的应用[J].智能电网,2016,4(1):91-95.
[11] Q/GDW421-2010电网安全稳定自动装置技术规范[S].北京:中国电力出版社,2010.
[12] 王德文,李静芳.变电设备状态监测大数据查询优化方法[J].电力系统自动化,2017,41(2):165-170.
[13] 覃雄派,王会举,李芙蓉,等.数据管理技术的新格局[J].软件学报,2013(2):175-179.
[14] 张万福,周二保,杨海星,等.纪村水电站机组效率试验与效率在线监测系统建立[J].水电自动化与大坝监测,2011,35(5):17-19.
[15]唐戢群,毛成,文贤馗,等.小水电机组效率在线监测系统[J].中国农村水利水电,2017(8):199-122.
[16]皮有春,杨小龙,徐进,等.葛洲坝3号机相对效率实验结果分析[J].大电机技术,2017(6):56-60.
[17]刘晓婷.水力机组现场测试手册[M].北京:水利水电出版社,1993.
[18]刘万景,郝国文,张永慧,等.水电厂流量测控问题探讨[J].水电与抽水蓄能,2015,1(4):87-88.
[19]杨明亮.三峡机组压力钢管测流系统探讨[J].中国仪器仪表,2016(3):61-62.
[20]赵林明,刘明武.水轮机流量测量数据的数值毕竟方法研究[J].水力发电,2006,32(8):53-55.
[2] 苗志强,梁海雷.超声波流量计的特点及在电厂力量测量上的应用[J].企业技术开发,2013,32(17):117-118.
[3] 姚仁民,卫东辉,王好锋.三门峡水电站经济运行与探索[J].人民黄河,2017,39(7):15-17.
[4] 郭乐.三峡电站机组756MW运行水资源利用影响分析[J].水力发电,2015,41(12):93-96.
[5] 张曙光,周曼,三峡枢纽水库运行调度[J].中国工程科学,2011,3(7):61-65.
[6] 杨建设.水轮机效率公式的现状机讨论[J].华北水利水电学院学报,2000,21(4):24-27.
[7] 鲁俊,王江淮,李伟,等.水轮机效率精细化计算分析方法简析[J].华电技术,2016,38(8):63-65.
[8] 李定川.超声流量计应用技术综述[J].智慧工厂,2017(5):57-60.
[9] 陈绪鹏,康永林,叶青,等.溪洛渡电站机组流量与效率超声波流量系统开发[J].人民长江,2015,46(11):88-91.
[10] 司庆华,徐海波,颜云松,等.Modbus协议在安全稳定控制装置中的应用[J].智能电网,2016,4(1):91-95.
[11] Q/GDW421-2010电网安全稳定自动装置技术规范[S].北京:中国电力出版社,2010.
[12] 王德文,李静芳.变电设备状态监测大数据查询优化方法[J].电力系统自动化,2017,41(2):165-170.
[13] 覃雄派,王会举,李芙蓉,等.数据管理技术的新格局[J].软件学报,2013(2):175-179.
[14] 张万福,周二保,杨海星,等.纪村水电站机组效率试验与效率在线监测系统建立[J].水电自动化与大坝监测,2011,35(5):17-19.
[15]唐戢群,毛成,文贤馗,等.小水电机组效率在线监测系统[J].中国农村水利水电,2017(8):199-122.
[16]皮有春,杨小龙,徐进,等.葛洲坝3号机相对效率实验结果分析[J].大电机技术,2017(6):56-60.
[17]刘晓婷.水力机组现场测试手册[M].北京:水利水电出版社,1993.
[18]刘万景,郝国文,张永慧,等.水电厂流量测控问题探讨[J].水电与抽水蓄能,2015,1(4):87-88.
[19]杨明亮.三峡机组压力钢管测流系统探讨[J].中国仪器仪表,2016(3):61-62.
[20]赵林明,刘明武.水轮机流量测量数据的数值毕竟方法研究[J].水力发电,2006,32(8):53-55.