Stability Improvement in a Distributed Generators using Virtual Synchronous Generator

Abstract

Now a days distributed generators (DG’s) utilizations were increased due to increased power demand effect over conventional generations. To maintain synchronism with grid generally phased locked loops are used in DG’s. If the power demand was more than requirement then the stability is the majorly effected problem in the DG’s. To eliminate this problem by using Virtual Synchronous Generators (VSG’s) concept in DG’s. It controls DG’s to maintaining balance between generation and load and also it is a modern trending technology to this DG’s. In VSG’s there is no Power system stabilizers to eliminate oscillations generated in the system during abnormal conditions. For this a new control strategy is implemented by using linearizing swing equation to suppressing these unwanted oscillations in the system. This paper is analyzed effectively by considering one more control technique that is Fuzzy logic control system and its observations have been seen in MATLB-SIMULINK software.