Category: Toolbox > eDrives and Systems > eDrives > Controllers
Inputs:
•freq_n: Normalized frequency reference. Scaled Integer (2.32)
•id_ref: Normalized d-axis current reference. Scaled Integer (2.32)
•i_a: measured alpha-axis current. Scaled Integer (2.32)
•i_b: measured beta-axis current. Scaled Integer (2.32)
•udc_n: Normalized DC bus voltage. Scaled Integer (2.32)
•cntr_on: Controller enable. (binary input)
Outputs:
•mA_ref: Modulation index reference for phase A duty cycle. Scaled Integer (8.32)
•mB_ref: Modulation index reference for phase B duty cycle. Scaled Integer (8.32)
•mC_ref: Modulation index reference for phase C duty cycle. Scaled Integer (8.32)
Description: The Current Controller block uses the error between reference current signals and measured current signals to generate modulation indices for three-phase motor voltages.
All inputs are divided by their respective full-scale values to derive normalized values. For example, – id_n = id_ref/C_fs, where id_ref is the user input and C_fs is the full-scale current.
Current Controller Kp (V/A): Indicates the proportional gain for the current loop.
Current Controller wi (rad/s): Indicates the integral gain frequency for the current loop.
Fullscale Current (A): Indicates the full-scale current value for normalization.
Fullscale Freq (Hz): Indicates the full-scale frequency value for normalization.
Fullscale Voltage (V): Indicates the full-scale voltage value for normalization.
Max Duty Cycle: Indicates the upper and lower limit on modulation indices.
User Current Ramp: Indicates the safety limits to avoid sudden jerks in the input values.
User Frequency Ramp: Indicates the safety limit to avoid sudden jerks in the input frequency value.