1Science and Research Branch, Islamic Azad University, Tehran, Iran
2AmirKabir University of Technology (Tehran Polytechnic)
Microgrids are applied not only generate power, but also producing a sinusoidal output voltage and supplying nonlinear loads. In this paper, using A current control scheme for selective harmonic compensation is proposed for shunt active power filters. In the active power filters using voltage source converters that are capable of dual-use technology to improve the quality of the selected compensation can be paid. Using this system, an improved individual harmonic and THD with these requirements will be modified. Simulation results show the effectiveness of the proposed method for compensating current harmonics to an acceptable level.In the microgrid some of resources connected to the grid with a converter’s. Therefore, the proposed system has the following advantages: 1- Feeding the energy to the utility 2- Harmonic elimination Function and improved power quality Among these resources Fuel Cells offer lower emission and higher efficiency than anther recourses such as Diesel Engines but are likely to be too expensive for many applications.