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SolarLib.pdf problem

Seven Han
Intellectual 600 points
Other Parts Discussed in Thread: CONTROLSUITE

Hi,Is the result of natural frequency wrong? The following two documents are not the same.

C:\ti\controlSUITE\libs\app_libs\solar\v1.2  P70

Now using settling time to be 30ms and the error band to be 5% and damping ratio to be
0.7 we can obtain the natural frequency to be 119.014 and then back substituting we get
Kp 166.6 p K and Ki 27755.55

sprabt4a.pdf  P5

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.

thank you!

  • 0
    TI__Mastermind 43730 points
    sprabt4a.pdf P5

    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, please refer to the C:\ti\controlSUITE\libs\app_libs\solar\v1.2

    spll_coeff_compute.xlsx for details..

    The other document needs to be corrected.

    regards
    manish