Power electronics active shunt filter with controlled dynamics

Abstract

Purpose

The aim of the research was to find a structure of the power electronics controlled current source with extended pass band, which would better match a source output current within an input (reference) signal. Also, pulse modulation components in output current of current source should be minimized.

Design/methodology/approach

The power electronics controlled current source utilizes both, the concept of the inductor with variable (controlled) inductance located at the output of an inverter and the concept of the multi‐channel (interleaved) inverter. The small signal (linear) and simulation models of an active filter have been investigated.

Findings

The work presents the concept of 1‐phase active shunt filter with utilization of the power electronics current source about extended pass‐band.

Research limitations/implications

The research should be continued to achieve stability of the electrical system with variable parameters of the power network and receiver.

Practical implications

The research will be continued towards realization of a laboratory model of a 3‐phase active shunt filter with the DSP based control module.

Social implications

Social implications are difficult to determine.

Originality/value

The paper presents a new concept of the precision power electronics controlled current source with the extended pass‐band. The controlled current source is the fundamental block of a power electronics active shunt filter.

Citation

Gwóźdź, M. (2013), "Power electronics active shunt filter with controlled dynamics", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 32 No. 4, pp. 1337-1344. https://doi.org/10.1108/03321641311317149