Abstract:
Distribution static synchronous compensator (D-STATCOM) is non-linear, multivariable, and strongly coupled. Based on D-STATCOM mathematical model analysis, improve the linear active disturbance rejection controller (LADRC), solve the coupling problem between the d-axis and q-axis current, and improve dynamic tracking response speed and anti-interference.
The Lyapunov stability theory proves the stability of the enhanced first-order LADRC controller, which compensates for the total disturbance error. Correction of the whole interference channel output improves the system’s anti-interference ability and the linear extended state observer’s (LESO) interference observation ability to high-frequency noise.
The Bode diagram in the frequency domain shows that the upgraded LADRC proposed in this paper has superior anti-interference performance than the traditional LADRC.
Finally, the enhanced first-order LADRC replaces D-STATCOM for current inner loop control, reducing LESO disturbance observation error. Experimental results reveal that the upgraded LADRC controller has better tracking, anti-interference, and control performance than the proportional integral (PI) controller.
Note: Please discuss with our team before submitting this abstract to the college. This Abstract or Synopsis varies based on student project requirements.