FOC 5.2观测器系数C5问题
小杜 提问时间: 2023-08-14 06:37:43 / 未解决|
在看FOC5.2库中，对电机电压方程来说，标幺化操作那边没看懂，为啥参数C5=F1 max measurable voltage / (2 Ls [Hz] max measurable current State observer execution rate [Hz])，不是SVPWM输出的最大电压为Vdc/根号3吗？为啥要除以2
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![FOC 5.2观测器系数C5问题 [相关图片]](https://uploads.9icnet.com/images/aritcle/20230620/101217t651rsd1vrkre5lv.png "FOC 5.2观测器系数C5问题 [相关图片]")
弗兰克 回答时间: 2023-08-14 07:00:47用5.4或更高的版本 /max phase voltage, 0-peak Volts/ define MAX_VOLTAGE (int16_t)((ADC_REFERENCE_VOLTAGE/SQRT_3)/VBUS_PARTITIONING_FACTOR) define MAX_CURRENT (ADC_REFERENCE_VOLTAGE/(2RSHUNTAMPLIFICATION_GAIN)) define OBS_MINIMUM_SPEED_UNIT (uint16_t) ((OBS_MINIMUM_SPEED_RPM*SPEED_UNIT)/_RPM) define MAX_APPLICATION_SPEED_UNIT ((MAX_APPLICATION_SPEED_RPM*SPEED_UNIT)/_RPM) define MIN_APPLICATION_SPEED_UNIT ((MIN_APPLICATION_SPEED_RPM*SPEED_UNIT)/_RPM) /***** PLL PARAMETERS **/ define C1 (int32_t)((((int16_t)F1)RS)/(LSTF_REGULATION_RATE)) define C2 (int32_t) GAIN1 define C3 (int32_t)((((int16_t)F1)MAX_BEMF_VOLTAGE)/(LSMAX_CURRENT*TF_REGULATION_RATE)) define C4 (int32_t) GAIN2 define C5 (int32_t)((((int16_t)F1)MAX_VOLTAGE)/(LSMAX_CURRENT*TF_REGULATION_RATE))