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controlsuit中的库模块 PFC_BL_ICMD中的比例系数的意义

shen feng
Intellectual 318 points
Other Parts Discussed in Thread: CONTROLSUITE

手册上这么说

PFC_BL_ICMD_VminOverVmax:n: is the ratio of minimum over
maximum AC input voltage the PFC stage is designed for represented in
Q24 format. PFC_BL_ICMD_Vout_maxOverVin_max:n: is the ratio of
maximum output voltage over maximum AC input voltage and represented in
Q24 format.

Usage: This section explains how to use this module. The example assumes a PFC
Stage designed for input AC range of 280Vrms to 80Vrms and the max DC
bus voltage of 450V. Hence,
PFC_BL_ICMD_VmaxOverVmin:n: = _IQ24(280/80)=_IQ24(3.5)
PFC_BL_ICMD_Vout_maxOverVin_max:n: =
_IQ24(450/(1.414*280))=_IQ24(1.14)

问：

280Vrms to 80Vrms 是不是采集的AC电压的均方根的范围？

450是不是直流母线电压？

  • 0
    Expert 1150 points

    2018 年了，谁回复一下吧，我也想知道

  • 0
    Intellectual 595 points

    这个Control suit 数字电源库有详细参数说明，你可以看一下，参数怎么计算怎么的来的都有详细说明

  • 0 回复 qiangguang li
    Expert 1150 points

    qiangguang li  你好，谢谢回复

    我看了controlSUITE 中的

    BLPFC_Rev1.1.pdf

    DPLib.pdf

    DPLib_CLA_C.pdf

    DPLibCLA.pdf

    只大概提到。这两个参数应该个比值。

    PFC_InvRmsSqr_VminOverVmax:n: is the ratio of minimum over
    maximum voltage, which in this example is 80Vrms/283Vrms. This ratio is
    then represented in Q30 format.

    The PFC_InvRmsSqr_Vmin:n: is thesame value represented in Q24 format

    PFC_InvRmsSqr_CLA宏如下，

    #define PFC_InvRmsSqr_CLA_C(v)            \
     v.Out = (v.Vmin > v.In) ? v.Vmin : v.In;        \
     v.Out = __meinvf32(v.Out) * v.VminOverVmax;        \
     v.Out = v.Out * v.Out;             \
     v.Out = ((v.Out <  LIMIT_PFC_INVRMSSQR) ? v.Out : LIMIT_PFC_INVRMSSQR)

    v.Vmin 是一个比值，V.in是个电压输入，

     v.Out = (v.Vmin > v.In) ? v.Vmin : v.In;        一个电压  跟 一个比值 做比较，这一步是要怎样理解。

    能不能帮忙解释一下，谢谢！