基于PXI技术的全功率风电变流器监测系统

在风力发电并网全功率变流器的研发过程中，为了测试和验证变流器的运行性能，需要一个变流器监测系统，不仅能够满足大量通道的高速数据采集，同时还要具有故障报警、录波、以及数据分析的能力。提出了并实现了一种基于PXI技术的3MW全功率变流器监测系统以满足上述的要求。详细描述了监测系统软硬件的实现方法，并且给出了大数据量监测系统的实时性问题的软件解决方法。在最后，给出了监测系统在3MW变流器实际调试过程中捕捉并记录下变流器故障的实例，表明了所提出的变流器监测系统的实效性。

A Full-Scale Wind Power Converter Monitor System Based on PXI Technology

To test the performance of the full-scale wind power converter in its development, a monitoring system is needed not only for the high speed sampling of the numerous channels, but also serves as fault alert, data saving, and data analyzing. In this paper a monitor system for a 3MW full-scale wind power converter based on PXI technology is proposed and realized to meet the above-mentioned requirements. Its realization is described in detail with the solution to the problem of the real time system given. At the end of this paper an application example of the 3WM full-scale wind power converter monitoring system is provided, in which the monitor system has successfully detected and recorded a fault occurred in a converter study test, suggesting that the converter monitor system works well and it is very important to the study of the full-scale wind power converter.