Assessment two Droop Control Models: Elementary Control and Angle- Frequency Advanced Control Strategies in Islanding Micro-Grid

This paper has been presented a islanding micro grid (IMG) which controlled by two controlling model. The first model is a droop control old method which has been used by phase locked loop (PLL), and operates in connected mode, essentially. But, using a microgrid central protection unit (MCPU) that in which is a centralized droop controller in IMG, presents a controlling modern way. The main advantage of the first model is power control of IMG, even thought with PLL. The second control model is an angle- frequency droop modern method which used for none linear load, generally. This model is a decentralized droop control strategy which is microgrid (MG) insular for controlling power and regulating MG voltage on the basis of the load different characteristics. The main advantage of second model is a law for a fixed frequency range in IMG. The main goal in both controllers is regulation of voltage and frequency in under study IMG, using resaved controlling signal from voltage source converter (VSC). At the end, to confirm proper functioning of the control system MATLAB/SIMULINK application has been used, then the suggested plan is being simulated and then results are compared.

کلیدواژه ها:

centralized and decenteralized droop control ، islanded microgrid ، angle- frequency droop control ، microgrid central protection unit ، unbalanced and non-linear characteristics