I am trying to perform identification of an ACIM motor with lab02b. My motorware version is 14.
It performs identification with DC bus voltage 320V. There is no problem. But when I increase the DC bus voltage to 400V after EST_State_RatedFlux estimator state becomes EST_State_Error. At EST_State_RatedFlux state it seems that motor frequency is restricted to 1 Hz instead of 5 Hz.
Actually my motor label is as follows:
Y connection:
Voltage:380 V
Frequency:50 Hz
Power:1500 W
Current: 3.6A
Poles: 4
Delta Connection:
Voltage:220 V
Frequency:50 Hz
Power:1500 W
Current: 6.2A
Poles: 4
My motor is delta connected and I wrote down following values in user.h
#define USER_MOTOR_TYPE MOTOR_Type_Induction
#define USER_MOTOR_NUM_POLE_PAIRS (2)
#define USER_MOTOR_Rr (NULL)
#define USER_MOTOR_Rs (NULL)
#define USER_MOTOR_Ls_d (NULL)
#define USER_MOTOR_Ls_q (NULL)
#define USER_MOTOR_RATED_FLUX (0.8165*220.0/50.0)
#define USER_MOTOR_MAGNETIZING_CURRENT (NULL)
#define USER_MOTOR_RES_EST_CURRENT (0.7)
#define USER_MOTOR_IND_EST_CURRENT (NULL)
#define USER_MOTOR_MAX_CURRENT (6.2)
#define USER_MOTOR_FLUX_EST_FREQ_Hz (5.0)
But I think instaspin assumes that the motor is Y connected, but my connection is delta. Is there any thing I need to change in the code for a delta connected motor?For an example do I need to change the values in user.h?
What can be the reason for the estimator SW to enter into error state?
