Synchronous Machine pu fundamental rotor alignment in Park transfromation
Hi
I am using the power systems blocks, specifically the synchronous machine pu fundamental. My question is which axis is aligned with the a axis: d or q. When I plot the d and q currents from the measurement port, d=0, and according to the matlab documentation that means the d-axis is aligned with the a-axis.
To confirm this hypothesis, I connected the block "abc to dq0" to the voltage source to transform directly the currents with the position of the motor. The configuration is "aligned with phase A axis". Unfortunately, now the q=0 and d>1. Then, I changed the configuration to "90 degrees behind phase A axis" and the behaviour is the same, d=0, but the plots are mirrored.
Summary:
The synchronous machine pu fundamental aligns the d-axis with the a-axis during the Park transformation?
Why the currents are mirrored (multiplied by -1)?Hi
I am using the power systems blocks, specifically the synchronous machine pu fundamental. My question is which axis is aligned with the a axis: d or q. When I plot the d and q currents from the measurement port, d=0, and according to the matlab documentation that means the d-axis is aligned with the a-axis.
To confirm this hypothesis, I connected the block "abc to dq0" to the voltage source to transform directly the currents with the position of the motor. The configuration is "aligned with phase A axis". Unfortunately, now the q=0 and d>1. Then, I changed the configuration to "90 degrees behind phase A axis" and the behaviour is the same, d=0, but the plots are mirrored.
Summary:
The synchronous machine pu fundamental aligns the d-axis with the a-axis during the Park transformation?
Why the currents are mirrored (multiplied by -1)? Hi
I am using the power systems blocks, specifically the synchronous machine pu fundamental. My question is which axis is aligned with the a axis: d or q. When I plot the d and q currents from the measurement port, d=0, and according to the matlab documentation that means the d-axis is aligned with the a-axis.
To confirm this hypothesis, I connected the block "abc to dq0" to the voltage source to transform directly the currents with the position of the motor. The configuration is "aligned with phase A axis". Unfortunately, now the q=0 and d>1. Then, I changed the configuration to "90 degrees behind phase A axis" and the behaviour is the same, d=0, but the plots are mirrored.
Summary:
The synchronous machine pu fundamental aligns the d-axis with the a-axis during the Park transformation?
Why the currents are mirrored (multiplied by -1)? power_conversion_control, electric_motor_control, power_electronics_control MATLAB Answers — New Questions