作者:
MIM Montero，ER Cadaval，FB González
关键词:
active filters ； power harmonic filters ； reactive power ； IEEE Standard 1459 power definitions ； control strategy ； harmonic cancellation ； reactive power compensation ； shunt active power filters ； three-phase four-wire systems ； three-phase reference currents
摘要:
Strategies for extracting the three-phase reference currents for shunt active power filters are compared, evaluating their performance under different source and load conditions with the new IEEE Standard 1459 power definitions. The study was applied to a three-phase four-wire system in order to include imbalance. Under balanced and sinusoidal voltages, harmonic cancellation and reactive power compensation can be attained in all the methods. However, when the voltages are distorted and/or unbalanced, the compensation capabilities are not equivalent, with some strategies unable to yield an adequate solution when the mains voltages are not ideal. Simulation and experimental results are included
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