MEC5220型数字式励磁调节器性能试验研究

Performance test and study of MEC5220 digital excitation regulater

建立了发电机励磁系统数学模型,通过对励磁系统模型的仿真研究,确定了各调节参数对励磁调节性能的影响,发现了机组产生动态稳定阻尼较弱的根本原因,优化了MEC5220型数字励磁调节器原整定参数,抑制了本机型低频振荡。同时,电力系统稳定器按照调整后的参数投入运行后,进行了无功反调试验,发现无功反调也在可接受的范围之内。

The excitation system model of generator is built in this paper.By analyzing the excitation system model, the effect of all the correlative parameters to the excitation system＇s performance is confirmed ,the ultimate reason of the low dynamic stabilization damp is detected,the former parameters of MEC5220 Digital AER is optimized,the low frequency oscillation is prestrained. At the same time,the reactive power regulated in reverse test has been done before the power system stabilizer is put into operation with the parameters regulated.The results show that the reactive power regulated in reverse test is accepted.