A Dynamic MOPSO Self-Regulating Modulated Power Filter Compensator Scheme for Electric Distribution Networks

The paper presents a novel Modulated Power Filter and Compensator (MPFC) scheme for voltage stability, energy conservation, loss reduction, power factor correction, and power quality enhancement for electric distribution systems based on Multi-Objective Particle Swarm Optimisation (MOPSO). The MPFC scheme was developed by the first author to vary the shunt power filter equivalent admittance, modify the reactive power flow to the distribution network. The filter dynamic switching is achieved using two complementary switching pulses generated by a Sinusoidal Pulse Width Modulation (SPWM) strategy and controlled by a tri-loop dynamic controller comprising three regulating time decoupled control loops, a minimum RMS source current dynamic loop, voltage stabilisation loop, and synthesised dynamic power loop. The MOPSO technique is used to find the optimal control settings that control the input control signal to the SPWM activation/ triggering block that minimises the distribution feeder current for reducing feeder losses, bus voltage deviations, and ensure distribution feeder capacity release.