Three-Phase Adaptive Frequency Estimator with a Delayed Signal Cancellation Pre-Filter Under Heavily Distorted Grid Conditions

• Published in: 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC) pp. 1 - 6
• Main Authors: Grabovski, E. F. C., Heldwein, M. L., Mussa, S. A.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.12.2019
• Subjects: adaptive filtering; Delays; Estimation; Frequency estimation; Harmonic analysis; Heuristic algorithms; Power harmonic filters; signal processing

A reliable and precise frequency detection algorithm is useful for different control strategies, especially on microgrid and aerospace applications. The widely-linear adaptive frequency estimator is based on the Augmented Complex Least Mean Square Filter and, thus inherits its fast dynamic response....