Ijraet a Flexible Harmonic Control Approach through Current- Controlled Dg–grid Interfacing with Closed-loop Power Control Using Fuzzy Logic Controller

The increasing application of nonlinear hundreds might cause distribution system power quality problems. so as to utilize distributed generation (DG) unit interfacing converters to actively compensate harmonics, this paper proposes associate increased current management approach, that seamlessly integrates system harmonic mitigation capabilities with the first weight unit power generation operate. because the projected current controllers has 2 well decoupled management branches to severally control basic and harmonic weight unit currents, native nonlinear load harmonic current detection and distribution system harmonic voltage detection don't seem to be necessary for the projected harmonic compensation technique. Moreover, a closed-loop power management theme is used to directly derive the elemental current reference while not mistreatment any phase-locked loops (PLL). The projected power management theme effectively eliminates the impacts of steady-state basic current chase errors within the weight unit units. Thus, associate correct power management is accomplished even once the harmonic compensation functions area unit activated. Additionally, this paper conjointly in brief discusses the performance of the projected technique once weight unit is connected to a grid with frequency deviation. Simulated and experimental results from a single-phase weight unit validate the correctness of the projected strategies with fuzzy logic controller.