Power quality improvement using model predictive control based shunt connected custom power device in a single phase system

摘要

The performance evaluation of a single-phaseshunt-connected custom power device (SC-CPD) for currentquality improvement is discussed in this paper. TheSC-CPD performance is compared based on the lineartriangle-comparison pulse width modulation (TC-PWM)control, hysteresis current control (HCC), and the predictivenon-linear switching control strategies. The predictiveswitching control is implemented using the finite controlset-model predictive control (FCS-MPC). The switchingcontrol techniques’ operational and implementation featuresare discussed for the given control objectives of theSC-CPD for a particular nonlinear load. Basic functionalcase studies with sinusoidal and non-sinusoidal supplymains in the presence of non-linear loads are presented toillustrate the appropriateness of the switching techniques.The SC-CPD model and control methodologies are developedin the MATLAB/Simulink environment, includingdesigning of various circuit components. Finally, performancesimulation results using the switching techniqueshave been compared and validated using OPAL-RT4510-based real-time simulations.