Adaptive protection scheme for distributed systems with DG. Issue 13 (19th January 2018)

• Record Type: Journal Article
• Authors: Song, Xiaohui; Zhang, Yu; Zhang, Song; Song, Shizhan; Ma, Jing; Zhang, Weibo
• Is Part Of: Journal of engineering. Volume 2017:Issue 13(2017)
• Page Start: 1432
• Page End: 1436
• Publication Date: 2018-01-19
• Subjects: distributed power generation -- power generation protection -- power distribution protection -- matrix algebra; symmetric faults -- asymmetric faults -- adaptive functions -- backup protection -- branch contribution factor matrix -- branch current -- protection backside network -- network topology -- DG access -- distributed generation -- distributed systems -- adaptive protection scheme; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2017.0568
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : A new adaptive protection method for distribution network is proposed, which is suitable for distributed generation (DG) access. According to the operation mode of the system and the topology of the network, this method performs an equivalent transformation on the protection backside network and eliminates the influence of DG on each branch current according to the branch contribution factor matrix. On this basis, adaptive main protection and backup protection are constructed. Compared to the traditional current protection, this method increases the protection range of the main protection and the backup protection, and the calculation is simple and easy to be set. The simulation results show that this method is not affected by DG access, and can satisfy the adaptive functions of protection in the case of symmetric or asymmetric faults.