Decoupled reactive power compensation using neural network based control scheme

It is proposed to decouple three phase load reactive power In fundamental and harmonic power components and then compensate these using a combination of conventional shunt and parallel hybrid active filter. This approach results in use of low power rated PWM converters and offers many other advantages as compared to conventional shunt compensation. A simple neural network assisted scheme for decomposing of three phase current or voltage waveforms under unbalanced and non-sinusoidal conditions has also been proposed. Detailed mathematical model of decomposing algorithm and its real time implementation on DSP has been presented. Experimental results obtained on a laboratory model under steady state and dynamic conditions under different operating conditions have been analyzed and presented to demonstrate the effectiveness of proposed decoupled reactive power compensation scheme.