UPQC‑based effective mitigation of harmonics by signal processing approach

Ananthan Nagarajan; M. V. Suganyadevi

UPQC‑based effective mitigation of harmonics by signal processing approach

Ananthan Nagarajan

M. V. Suganyadevi

Vol. 22, No. 3, pp. 454-464, Mar. 2022

10.1007/s43236-021-00368-9

UPQC

Adaptive PI controller

Abstract

This paper introduces a solution for solving the harmonics problem in power distribution systems. The unified power quality conditioner (UPQC) is a combination of shunt and series converters linked by a common capacitor. Controlling the link voltage and generating the reference current are the two main objectives of this work. An adaptive PI controller is employed for regulating the link voltage. For reference current generation, the DDSRF (decoupled double synchronous reference frame) theory is employed, which assists in eliminating the harmonics that occur in the system. By the DDSRF theory, a THD of around 3.3% is accomplished, and to further minimize the harmonics, a signal processing approach is implemented. Pre-processing, segmentation and feature extraction are the three major steps used in this paper to accurately extract the reference current. Finally, the obtained test data is classified with the trained data by the DCNN (deep convolutional neural network). Thus, the reference current is extracted clearly by this technique, and the THD is minimized to 0.98%. This work is implemented in MATLAB, and the results are verified through hardware implementation.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

A. Nagarajan and M. V. Suganyadevi, "UPQC‑based effective mitigation of harmonics by signal processing approach," Journal of Power Electronics, vol. 22, no. 3, pp. 454-464, 2022. DOI: 10.1007/s43236-021-00368-9.

[ACM Style]

Ananthan Nagarajan and M. V. Suganyadevi. 2022. UPQC‑based effective mitigation of harmonics by signal processing approach. Journal of Power Electronics, 22, 3, (2022), 454-464. DOI: 10.1007/s43236-021-00368-9.