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There are many forms of network structures in the process of smart substation layer. It is significant to research the process layer's reliability under different network structures of relay protection system for the network structure selection of process layer and engineering application. Based on the digitized substation relay protection system structure characteristic, this paper puts forward a...
With the development of smart substation and monitoring technology, the condition-based maintenance (CBM) can been implemented in relay protection system that once relied on time- or cycle-based preventive maintenance. However, most of the maintenance strategies of relay protection system considering the condition monitoring are studied qualitatively. Based on this, according to the failure mechanism,...
A new wide-area backup protection algorithm based on the fault component voltage distribution is proposed in this paper. It is helpful to overcome the problems of complex setting and maloperation under flow transfer of conventional backup protection. The measured values of fault component voltage and current at one terminal of the transmission line are applied to estimate the fault component voltage...
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