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Summary -st2.0 Hall angle estimation
2022-07-05 07:56:00 【feiyingzaishi】
1、 First define a relational equation , It's easy to understand by looking at the software
F1 representative FOC Frequency of execution (PWM Period frequency ), The unit is HZ;
△A Representing one PWM Hall angle change during the period ;
AC Represents the angle variation range of an electrical angle period ;
F2 Represents the operating frequency of the motor , Company HZ;
The formula :F1*△A=AC*F2
The basic formula :f Motor operating frequency ,P Polar logarithm
2、 Calculation in Library
CKTIM-- Clock frequency of hall timer
SAMPLING_FREQ---FOC Frequency of execution
PeriodMeasAux.wPeriod-- The change time of a single Hall sector ;
The first calculation is △A Representing one PWM Hall angle change during the period ; At the calculated motor speed RPM
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