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SolarLib.pdf 锁相环问题

Other Parts Discussed in Thread: CONTROLSUITE

P70 关于锁相环自然频率的推导结果是错误的吧?Kp/Ki参数也是不对的,还在例程中使用。

  • 您好,

    确认一下,SolarLib.pdf文档您查看的具体位置是在C:\ti\controlSUITE\libs\app_libs\solar\v1.2吗?

  • 是的,将误差限和另外一个相似的符号混淆了。从另外一份资料sprabt4a.pdf  P5也可以佐证这一问题。自然频率应为:158.6859

  • 感谢您提出这一问题,我这边咨询后给您确认!

  • min zhou2,

    sprabt4a.pdf  推导的结果是准确的,SolarLib.pdf 手册将做出修改。

    Using settling time of 30 ms, error band of 5% and damping ratio of 0.7, the natural frequency of 158.6859
    can be obtained; and then back substituting you get Kp = 222.1603 and Ki = 25181.22.
    is the correct values。

    另外您可以看下C:\ti\controlSUITE\libs\app_libs\solar\v1.2 中的excel 表格: spll_coeff_compute.xlsx

    再次感谢!

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