Implementation of a direct digital predictive current controller for single and three phase voltage source inverters

Control techniques for active power filters

“…Three approaches are available to force the output current of an inverter to follow a reference: current regulated PWM; hysteresis regulation and dead-beat/ predictive control [76]. The discussion here will focus on the control of voltage source inverters although there has been discussion of the use of current source inverters [77].…”

“…A development of a predictive current controller is described in [76]. This is a general method, not specific to an APF, and is developed in two variants for either measured or estimated EMF.…”

Advanced Control Strategy for Single–Phase Voltage–Source Active Rectifier with Low Harmonic Emission

“…This power converter allows the precise control of DC-link voltage U c to constant value and the current control on ac side of converter i t (the quality of flowing current is very dependent on selected control). Control of the active rectifier is a very popular issue and it is possible to find many interesting articles with different control methods: i) hysteresis control method [1,2], ii) model based control [3,4], iii) vector control [5], iv) direct current control based on PR controller [6,7]. This type of power converter (H-bridge) is basic component for multilevel power converters [8][9][10][11] and especially for multilevel traction converter [12][13][14].…”

Sistema de compensación mediante filtro activo de potencia con sistema de obtención de las corrientes de referencia selectivo utilizando control 3D-3B SVPWM de la etapa de potencia. Aplicación a sistemas industriales a 4 hilos.

“…-Controladores Predictivos [110]- [111]. Las función de un controlador de corriente es conseguir que la señal de salida siga a la de referencia rechazando las posibles perturbaciones del sistema.…”

“…Se arranca con la transición del vector V 0 al vector V 7 , lo que significa alineamiento por flanco de subida. La secuencia de conmutación es V 7 (111), V 2 (110), V 1 (100), V 0 (000). El paso de un vector al siguiente solo implica la conmutación de una rama, este criterio permite reducir el número de conmutaciones de la secuencia.…”