RepositóriUM (Universidade do Minho) · 2001 · 45 citations · 6 references
Open access
The paper addresses power system harmonic problems, reviewing international standards and key methods for analyzing non‑sinusoidal circuits. The study applies the p‑q theory to design a shunt active filter control algorithm. The authors employ the p‑q theory to implement a shunt active filter that compensates harmonic currents, power factor, and load unbalance, after reviewing relevant standards and analysis methods. Simulations and experiments demonstrate that the active filter achieves good dynamic and steady‑state performance.
This paper deals with problems related with harmonics in power system networks. Several international standards issued to control power quality problems are briefly described and some important methods to analyse electrical circuits with non-sinusoidal waveforms are introduced and evaluated. One of these methods - the p-q theory - was used to implement the control algorithm of a shunt active filter, which is also described in this paper as an application example. The filter can compensate for harmonic currents, power factor and load unbalance. Both simulation and experimental results are presented, showing that good dynamic and steady-state response can be achieved with this approach.
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Shunt active filter for power quality improvement
João L. Afonso, Maurício Aredes, Edson H. Watanabe et al. · RepositóriUM (Universidade do Minho) · 2001 · 54 citations · Full text