The Network Protection Containing Renewable Energy Distribution Systems

Abstract

The research on renewable energy access distribution network is changing the traditional electricity transmission and distribution network. The convergence of protection, measurement and control, communication and It technologies to invent a new type of IED, which has features such as functional flexibility, excellent adaptability, high reliability, easy maintenance and great cost efficiency, so as to solve the above mentioned protective parameters set and match difficulties, as well as, to design an easy and rapid network reconstruction method, to improve the overall intelligent level of distribution automation. The proposed networked protection scheme utilizes the point-to-point communication technology. With the help of the arbitration from distributed communication; every IED can analyze and make tripping decisions based on information from both the self status and its networked neighbours. As the result, such system can selectively isolate the fault and rapidly reconstruct power supply.