access icon openaccess Selective harmonic suppression strategy by SAPF in power distribution system

This study proposes a flexible selective harmonic compensation and resonance damping algorithm for shunt active power filter (SAPF) applied in three-phase three-wire power distribution system. The selective harmonic compensation current reference extraction is based on recursive discrete Fourier transform. The resonance damping control strategy adopts damping gain auto-adjustment algorithm based on proportional–integral regulation of the point of common coupling (PCC) voltage total harmonic distortion. Theoretical analyses have shown that harmonic compensation together with resonance damping by the SAPF could obtain the best performance to improve the power quality of the power distribution system. Simulation and laboratory test results are provided to verify the effectiveness of the proposed strategy.

Inspec keywords: harmonic distortion; discrete Fourier transforms; power distribution control; power supply quality; power harmonic filters; PI control

Other keywords: shunt active power filter; PCC voltage total harmonic distortion; three-phase three-wire power distribution system; SAPF; damping gain auto-adjustment algorithm; resonance damping algorithm; resonance damping control; recursive discrete Fourier transform; flexible selective harmonic compensation; power quality; current reference extraction; proportional-integral regulation

Subjects: Integral transforms in numerical analysis; Distribution networks; Power supply quality and harmonics; Integral transforms in numerical analysis; Control of electric power systems; Power system control

References

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      • 10. Wei, X., Dai, K., Fang, X., et al: ‘Performance analysis and improvement of output current controller for three-phase shunt active power filter’. Proc. IEEE Int. Conf. Industrial Electronics Control and Instrumentation (IECON), 2006, pp. 17571761.
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      • 2. EN 50160: ‘Voltage characteristics of electricity supplied by public distribution systems’ (CENELEC, Brussels, Belgium, 1999).
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      • 1. IEEE Std. 519: ‘IEEE recommended practices and requirements for harmonics control in electric power systems’, 1992.
http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2017.0604
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