摘要
针对电力拖动系统中工业设备的状态监测、故障诊断以及节能控制的需要,研制了基于霍尔传感器和LabVIEW的三相电信号实时监测系统,通过信号采集电路与NI-PXI工控机配合,完成电信号的实时获取。工控机设计了基于LabVIEW的信号采集程序,并通过全周波傅氏算法实现了采样信号基频特征的快速提取,解决了电力拖动系统实时信号采集与检测的问题。实验证明该采集系统具有较宽的测量范围和良好的隔离作用,检测精度高且能够快速、准确、稳定获取电机的三相电信号,符合工业现场检测要求,为研究和开发电力拖动系统的状态监测及故障诊断提供了软硬件支持。
To monitor the conditions of an electric power drive system, diagnose its fault and save energy, we use the Hall sensor and LabVIEW to develop a three-phase electrical signal real-time monitoring system. We use the signal acquisition circuit together with the industrial personal computer NI-PXI to gather the real-time electrical sig- nal. We use the one-cycle Fourier algorithm to detect the signal acquisition program and the fundamental compo- nents with the LabVIEW in an industrial personal computer, thus solving the real-time signal acquisition and detec- tion problems. The experimental results show that our signal monitoring system has a wide measurement range, good isolation effect and high accuracy and can quickly, accurately and stably acquire the three-phase electric signal of the electric power drive system.
出处
《机械科学与技术》
CSCD
北大核心
2013年第8期1149-1152,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51275375)
陕西省教育厅自然科学项目(12JK0682)资助
关键词
电力拖动系统
霍尔传感器
信号检测
LABVIEW
failure analysis
personal computers
signal detection
power drive system
hall sensor
three-phase electricalLabVIEWalgorithms
monitoring
sensors
electricsignal
signalacquisition
signal detection
