Predictive current control of FL-shunt active power filter for dynamic and heterogeneous load compensation

Abstract

In this paper, a predictive current control technique is utilized to generate switching pulses for four-leg-shunt active power filter (FL-shunt active power filter). The d-q theory technique is executed for removing the reactive and harmonic components of load current. MATLAB-based simulation and FPGA-controlled experimentation have been carried out to evaluate the behavior of predictive current control technique under dynamic and heterogeneous loading conditions. The 3-phase induction machine is considered as a dynamic load, and the capability of FL-shunt active power filter is assessed for compensating the reactive power. The compensation behavior of FL-shunt active power filter is observed with heterogeneous load, which is an amalgamation of dynamic and unstable static loads. Under steady-state and transient conditions, the simulation and experimentation results demonstrate that the proposed technique makes the supply current sinusoidal as well as balanced; compensates the reactive power; maintains near to unity power factor at the point of common coupling (PCC); and annuls the current flow in neutral conductor.

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Correspondence to Dheepanchakkravarthy Azhagesan.

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Azhagesan, D., Periyasamy, M., Manickavasagam Parvathy, S. et al. Predictive current control of FL-shunt active power filter for dynamic and heterogeneous load compensation. Electr Eng (2021). https://doi.org/10.1007/s00202-021-01224-6

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Keywords

  • Predictive current control
  • FL-shunt active power filter
  • FPGA
  • Heterogeneous load