Neural Network Hysteresis Control of three-phase Switched Capacitor Active Power Filter

The switched capacitor active filter is different from the traditional active filter. It removes the requirement for a large current or voltage source, which leads to the reduction in cost and in physical size. A control method that combines the neural network technology with the hysteresis band technology is presented. Through training the neural network can learn the control rules by itself and can replace the real hysteresis comparator in power converter control. The computer simulation results show this filter´s advantage.