foc.c File Reference

this document is mainly the code implementation of motor phase sequence correction and FOC algorithm. More...

#include "foc.h"
#include "config.h"
#include "fast_math.h"
#include "encoder.h"
#include "system.h"
#include "timer.h"

Go to the source code of this file.

Functions
void	foc_calibrate_phase (void)
	automatic phase sequence detection and correction More...
void	foc_calculate_dutycycle (float elect_angle, float d, float q, float *u, float *v, float *w)
	calculate the corresponding three-phase PWM duty cycle under the current electrical angle More...

Variables
volatile FOC_Structure_t	FOC_Struct
	FOC handler. More...
volatile unsigned char	phase_sequence = 0
	motor phase sequence flag variable More...
unsigned char	foc_parameter_available_flag = 1
	flag variable for FOC parameter availability More...

Detailed Description

this document is mainly the code implementation of motor phase sequence correction and FOC algorithm.

Author

Lao·Zhu

Version

V1.0.3

Date

1. August 2023

Definition in file foc.c.

Function Documentation

foc_calculate_dutycycle()

void foc_calculate_dutycycle	(	float	elect_angle,
		float	d,
		float	q,
		float *	u,
		float *	v,
		float *	w
	)

calculate the corresponding three-phase PWM duty cycle under the current electrical angle

Parameters

[in]	elect_angle	electrical angle of motor rotor, in radian system
[in]	d	expected field strength in the direct axis direction of the motor
[in]	q	expected field strength in the quadrature axis direction of the motor
[out]	u	calculation results of U-phase duty cycle
[out]	v	calculation results of V-phase duty cycle
[out]	w	calculation results of W-phase duty cycle

Definition at line 99 of file foc.c.

References fast_cos, fast_sin(), and VBUS.

Referenced by encoder_zeroing(), foc_calibrate_phase(), and TIMER2_IRQHandler().

foc_calibrate_phase()

void foc_calibrate_phase

(

void

)

automatic phase sequence detection and correction

Definition at line 33 of file foc.c.

References CALI_TORQUE, delayms(), encoder_get_mechanical_angle(), foc_calculate_dutycycle(), phase_sequence, and update_pwm_dutycycle().

Referenced by main().

Variable Documentation

foc_parameter_available_flag

unsigned char foc_parameter_available_flag = 1

flag variable for FOC parameter availability

Definition at line 28 of file foc.c.

Referenced by flash_read_parameters(), mdtp_callback_handler(), and report_local_variable().

FOC_Struct

volatile FOC_Structure_t FOC_Struct

FOC handler.

Definition at line 20 of file foc.c.

Referenced by encoder_get_electronic_angle(), encoder_update_speed(), mdtp_callback_handler(), report_angle_speed(), report_local_variable(), TIMER13_IRQHandler(), and TIMER2_IRQHandler().

phase_sequence

volatile unsigned char phase_sequence = 0

motor phase sequence flag variable

Definition at line 24 of file foc.c.

Referenced by flash_read_parameters(), flash_write_parameters(), foc_calibrate_phase(), report_local_variable(), and TIMER2_IRQHandler().