基于风机并网监测的雷击定位研究

Lightning location study based on the wind turbine grid⁃connected monitoring

针对雷电信号的高频率采集需求,结合传统风机并网监测技术提出了一种新的并网检测方案。风电机组状态监测已经成熟使用高频采样技术,移植这种技术到传统的风机并网监测中,该文通过PSCAD/EMTDC电磁暂态仿真软件搭建系统仿真模型,进行了模拟雷击信号的实验,设计了一种基于ADP32F35DSP风电机组并网监测系统,采用锁相环倍频电路自动控制CL1606对6路信号同时高速采样,实现并网电信号的高精度采集,利用复序列FFT算法得到各种并网参数,通过无线物联网技术将数据传输给上位机,完成风电机组并网的实时参数高精度测量和准确分析。将装置安装到现场验证了系统设计的有效性。

Aiming at the demand of high frequency acquisition of lightning signal,a new grid⁃connected detection scheme is proposed combining with the traditional wind turbine grid⁃connected monitoring technology.Wind turbine condition monitoring has mature use of high frequency sampling technology,transplant this technology to the traditional grid monitoring,the paper first electromagnetic transient simulation soft PSCAD/EMTDC to build a wind farm system model,simulate the lightning signal experiment.A grid⁃connected monitoring system for wind turbines based on ADP32F35DSP is designed.Phase⁃locked loop frequency doubling circuit is used to automatically control CL1606 to simultaneously sampling 6 signals at high speed to realize high⁃precision acquisition of grid⁃connected electrical signals.Various grid⁃connected parameters are obtained by using complex sequence FFT algorithm,and the data is transmitted to the upper computer through wireless Internet of Things technology.Complete the high precision measurement and analysis of the real⁃time parameters of wind turbine grid⁃connection.The device is installed on site to verify the effectiveness of the system design.