The new-type power system has relatively low inertia due to the substantial replacement of synchronous generators (SGs) by converter-interfaced generators (CIGs). Low inertia may result in faster frequency dynamics and threaten the frequency stability of the new-type power system. This paper investigates the inertia response characteristic of typical devices in the new-type power system. By the analogy of the mathematical form of SG inertia, the inertia of asynchronous devices, such as asynchronous motors and CIGs with virtual synchronous generator (VSG) control, can be obtained. The analysis is significant for evaluating of inertia resources in the new-type power system.
Discussion(0)
No comments yet. Be the first to comment.