基于LabVIEW风电场电能质量监测系统

Power Quality Monitoring Systemin Wind Farm Based on LabVIEW

针对传统的电能质量分析仪以硬件为核心,功能单一、成本高、数据处理慢等问题,该文采用软硬件相结合,借助于数据采集卡以LabVIEW软件为开发平台研发了风电场电能质量监测系统,通过数据采集卡采集风电场的三相交流信号,并对电压偏差、频率偏差、谐波、三相不平衡、电压波动等指标进行监测并分析给出风电场运行状态和风电场对电网的影响。系统实现了长期自动运行,实时测量分析、存储数据的功能,开发周期短,具有良好的可视化人机交互界面,便于修改系统的功能和规模,为用户提供了高度的灵活性和易用性。

In view of the problems of traditional power quality analyzer of taking hardware as the core,single function,high cost,slow data processing and so on,this paper combines software with hardware,with the aid of data acquisition card and developes wind power quality monitoring system based on the LabVIEW soft-ware development platform.The system col ects three-phase ac signal of wind farms through the data ac-quisition card,monitors voltage deviation,frequency deviation,harmonic,three-phase unbalance,voltage fluctuation and other indicators,and analyzes the impact of wind farm and wind farm running state to power grid.System has achieved the functions of the long-term run automatical y,real time measurement and anal-ysis and storing data,the system has short development cycle and the good visual man-machine interface, which is easy to modify the system function and scale,and provides users high degree of flexibility and ease of use.