Tool/software:
Hello,
I am using AM263P LP & BOOSTXL_3PhGANINV driver board and Linix 45ZWN24-40 BLDC Motor. I have successfully passed the first 3 levels in universal motor control example.
in DMC_LEVEL_4,
First, The motor rotates in accordance with the reference speed. After 2-3 seconds, the motor speed decreased according to the reference speed.
Also, the speed changes continously with a constant pattern.
How should I proceed?
Regards,
Burak
Hello,
The motor I use is Linix 45ZWN24-40. I don't have enough information about this motor. The parameters of the motor are in the picture below, that's all I know.
I have set some motor parameters that I know. All engine parameters are below.
#elif (USER_MOTOR1 == Linix_45ZWN24_40) #define USER_MOTOR1_TYPE MOTOR_TYPE_PM #define USER_MOTOR1_NUM_POLE_PAIRS (2) //#define USER_MOTOR1_MAX_CURRENT_A (2.34f) // continuous current #define USER_MOTOR1_MAX_CURRENT_A (8.0f) #define USER_MOTOR1_Rs_Ohm (0.8f) #define USER_MOTOR1_Ls_d_H (0.0002f) #define USER_MOTOR1_Ls_q_H (0.0002f) #define USER_MOTOR1_RATED_FLUX_VpHz (0.18f) #define USER_MOTOR1_Rr_Ohm (0.0f) #define USER_MOTOR1_MAGNETIZING_CURRENT_A (0.0f) #define USER_MOTOR1_RES_EST_CURRENT_A (1.5f) #define USER_MOTOR1_IND_EST_CURRENT_A (-1.0f) #define USER_MOTOR1_FLUX_EXC_FREQ_Hz (60.0f) // the inertia that describes the amount of mass, in Kg.m2 #define USER_MOTOR1_INERTIA_Kgm2 (7.06154e-06) // the rated voltage of the motor, V #define USER_MOTOR1_RATED_VOLTAGE_V (24.0f) // V // the minimum rotation frequency if the motor (Hz) #define USER_MOTOR1_FREQ_MIN_Hz (9.0f) // Hz // the maximum/base rotation frequency of the motor (Hz) #define USER_MOTOR1_FREQ_MAX_Hz (133.0f) // Hz // V/f Profile Parameters for open-loop in build level 2 // the low frequency f_low of V/f profile, in Hz, // set to 10% of rated motor frequency #define USER_MOTOR1_FREQ_LOW_Hz (10.0f) // Hz // the high frequency f_high of V/f profile, in Hz, // set to 100% of rated motor frequency #define USER_MOTOR1_FREQ_HIGH_Hz (133.0f) // Hz // the minimum voltage V_min of V/f profile, // the value is suggested to set to 15% of rated motor voltage, in Volt. #define USER_MOTOR1_VOLT_MIN_V (1.0f) // Volt // the maximum voltage, V_max of V/f profile, // the value is suggested to set to 100% of rated motor voltage, in Volt #define USER_MOTOR1_VOLT_MAX_V (24.0f) // Volt // the current increasing delta value for running the motor with force open-loop , in A #define USER_MOTOR1_FORCE_DELTA_A (0.05f) // A // the current increasing delta value for motor rotor alignment, in A #define USER_MOTOR1_ALIGN_DELTA_A (0.01f) // A // the current for running the motor with force open-loop or startup, in A #define USER_MOTOR1_FLUX_CURRENT_A (0.5f) // A // the current for motor rotor alignment, in A #define USER_MOTOR1_ALIGN_CURRENT_A (1.5f) // A // the current for start to run motor with closed-loop when the speed is // lower than the startup setting speed, in A #define USER_MOTOR1_STARTUP_CURRENT_A (3.5f) // A // the current for running the motor with torque control mode when start the motor, in A. #define USER_MOTOR1_TORQUE_CURRENT_A (3.0f) // A // the over-current threshold for the motor, in A. // The value can be set to 50%~300% of the rated current of the motor #define USER_MOTOR1_OVER_CURRENT_A (11.5f) // A // the speed threshold for start the motor, in Hz #define USER_MOTOR1_SPEED_START_Hz (35.0f) // Hz // the speed threshold for running the motor with force open-loop, in Hz #define USER_MOTOR1_SPEED_FORCE_Hz (30.0f) // Hz // the acceleration for start the motor, in Hz/s. #define USER_MOTOR1_ACCEL_START_Hzps (10.0f) // Hz/s // the maximum acceleration for running the motor, in Hz/s #define USER_MOTOR1_ACCEL_MAX_Hzps (20.0f) // Hz/s // the speed threshold for running the motor with flying start mode, in Hz #define USER_MOTOR1_SPEED_FS_Hz (3.0f) // Hz // the current for motor brake, in A. #define USER_MOTOR1_BRAKE_CURRENT_A (1.0f) // A // the duration time for motor brake, in 5ms time base #define USER_MOTOR1_BRAKE_TIME_DELAY (12000U) // 60s/5ms
when reference speed is 44 Hz.
Regards,
Burak
