Shunt active power filter (SAPF) is widely used for harmonic and reactive power minimization in grid current. The Instantaneous reactive power theory (IRPT) based current control method is often used to control the SAPF. However, IRPT performance gets highly degraded under non-ideal grid voltage conditions. This paper proposes a frequency-tuned sinusoidal signal integrator-based positive sequence component extractor (PSCE) for reference grid current generation. PSCE separates fundamental frequency components from the unbalanced and distorted grid voltage, which are utilized in IRPT to generate the SAPF reference currents. A 10 KVA SAPF has been analyzed theoretically and tested in MATLAB/Simulink. The simulation results show balanced and sinusoidal grid currents with allowable (as per IEEE standards 519-2022) THD and power factor of grid current.
A Modified Shunt Active Power Filter for Distorted Supply Voltage
31.07.2024
753649 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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