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:: Volume 7, Issue 2 (3-2019) ::
ieijqp 2019, 7(2): 113-121 Back to browse issues page
appropriation of differential protection for optimal protection of active distribution networks under different configurations.
Hossein Kazemi Karegar , Ali Abbasi
Shahid Beheshti University
Abstract:   (1034 Views)
The uncertainty in connection status of distributed generation and network structure complicates the adjustment of the overcurrent relays in distributing network. With the increase in number of modes of operation, the investigation area faces limitations and becomes even pointless, making it almost impossible to reach a unified host of setting applicable for all possible modes. Yet, the conditional situations could be overlooked and the investigation could be objective-oriented once the differential protection is maintained and the faults are taken care of instantly. The differential protections must be installed with the minimum number and in the proper places so that the incompatible conditions would be eliminated. As such, a new approach based on additional methods with regard to the nature of differential protection and its impact on identifying incompatible conditions is recommended. The outcome of such approach is a set of candid lines for installing the differential protections and thus the convergence of protective coordination of overcurrent relays. This approach has been simulated for the ringed distributed active network and, as the outcome reveals, the recommended approach with the proper placement of differential protections along with the unified setting for all relays makes the constant protection coordination possible.
Keywords: Optimal Protection Coordination, Overcurrent Relays, Adaptive Protection, Optimal Protection, Additional Method
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Type of Study: Research |
Received: 2018/08/25 | Accepted: 2019/01/7 | Published: 2019/02/25

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Kazemi Karegar H, Abbasi A. appropriation of differential protection for optimal protection of active distribution networks under different configurations.. ieijqp. 2019; 7 (2) :113-121
URL: http://ieijqp.ir/article-1-554-en.html

Volume 7, Issue 2 (3-2019) Back to browse issues page
نشریه علمی- پژوهشی کیفیت و بهره وری صنعت برق ایران Iranian Electric Industry Journal of Quality and Productivity
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