TLE9879 sensorless FOC parameter

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huaqingren
Level 2
Level 2
10 replies posted 10 sign-ins 5 questions asked

你好:

我在FOC示例代码中看到如下代码,想请问一下:

1. EMO_CFG_FOC_TABLE_SCALE 这个参数的意义?

2. 0.9091 和 0.4164 的含义?

感谢!!!

Emo_Svm.MaxAmp = (uint16)(CCU6_T12PR / EMO_CFG_FOC_TABLE_SCALE);
/*vectorial voltage limitation, for block limitation algorithm*/
/*0.9091 * MaxAmp*/
Emo_Svm.MaxAmp9091pr = (29789 * Emo_Svm.MaxAmp) >> MAT_FIX_SHIFT;
/*0.4164 * MaxAmp*/
Emo_Svm.MaxAmp4164pr = (13643 * Emo_Svm.MaxAmp) >> MAT_FIX_SHIFT;

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1 Solution
LinGuohui
Moderator
Moderator
Moderator
500 replies posted 50 likes received 250 solutions authored

你好,

EMO_CFG_FOC_TABLE_SCALE是三角函数查表的转换系数。

0.9091 和 0.4164是对电压分量的限幅系数,保证a^2+b^2 =1. 具体确认值和整个软件代码,参数变换有关。

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2 Replies
LinGuohui
Moderator
Moderator
Moderator
500 replies posted 50 likes received 250 solutions authored

你好,

EMO_CFG_FOC_TABLE_SCALE是三角函数查表的转换系数。

0.9091 和 0.4164是对电压分量的限幅系数,保证a^2+b^2 =1. 具体确认值和整个软件代码,参数变换有关。

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Thank you so much. understood.

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