foc.h File Reference

this is the header file of foc.c, which defines the structure of FOC algorithm and angle conversion factor. More...

Go to the source code of this file.

Data Structures
struct	FOC_Structure_t
	structure of FOC algorithm More...

Macros
#define	MECHANGLE_COEFFICIENT   (6.2831854f / ENCODER_RESO)
	mechanical angle conversion factor More...
#define	ELECANGLE_COEFFICIENT   ((6.2831854f * POLAR_PAIRS) / ENCODER_RESO)
	electric angle conversion factor More...
#define	SPEED_COEFFICIENT   ((6.2831852f * TIM13_FREQUENCY) / ENCODER_RESO)
	mechanical rotate speed conversion factor More...

Functions
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...
void	foc_calibrate_phase (void)
	automatic phase sequence detection and correction More...

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

Detailed Description

this is the header file of foc.c, which defines the structure of FOC algorithm and angle conversion factor.

Author

Lao·Zhu

Version

V1.0.1

Date

9. October 2021

Definition in file foc.h.

Macro Definition Documentation

ELECANGLE_COEFFICIENT

#define ELECANGLE_COEFFICIENT   ((6.2831854f * POLAR_PAIRS) / ENCODER_RESO)

electric angle conversion factor

Definition at line 26 of file foc.h.

MECHANGLE_COEFFICIENT

#define MECHANGLE_COEFFICIENT   (6.2831854f / ENCODER_RESO)

mechanical angle conversion factor

Definition at line 24 of file foc.h.

SPEED_COEFFICIENT

#define SPEED_COEFFICIENT   ((6.2831852f * TIM13_FREQUENCY) / ENCODER_RESO)

mechanical rotate speed conversion factor

Definition at line 28 of file foc.h.

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

extern

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

extern

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

extern

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().