介绍了一种用于有源电力滤波器(Active Power Filter,APF)实时监控与保护的计算机监控系统.该系统运用VC++的多线程编程技术,实现了高速不间断采样和实时数据处理的多任务并行机制,从而能对APF系统进行高采样率的谐波分析和更完整可靠的故障实时报警、滤波.此外,软件设计中引入DAQBench工控ActiveX组件,加强了监控软件界面与功能的专业性.

介绍了一种用于有源电力滤波器(Active Puwer Filter-APF)的计算机实时监控系统.该系统运用VC++的多线程编程技术,实现了不间断采样和实时数据处理的高速并行操作,从而能对APF系统进行高采样率的谐波分析和更完整可靠地故障实时录波,具有较高的实时性.此外,软件设计中引入DAQBench工控ActiveX组件,加强了监控软件界面与功能的专业性.实验表明,此监控系统能对APF进行有效的监控和保护,提高了APF系统的可靠性与自动化水平.

A Virtual Instrument used for computer control ex pe riment is designed with LabWindows/CVI This paper dwells on the control princip le of PCbased temperature control system, the VI development procedure a nd the effect of VI using, which is used to clarify that utilizing VI technology based on CVI in measurement control experiment field possesses the advantages of faster software development, more convenient using and more flexible instrum ent functions