Abstract
Containment of power losses in LV networks with high penetration of distributed generation
Highlights
Power losses are inherently associated with the transmission and distribution of electric power
A traditionally adopted criterion for minimising such losses in distribution networks is the containment of the reactive power absorbed by end-users, through stringent limitations on the minimum allowed power factor (PF)
Considering that the distribution system operator (DSO) is required to accept all the requests of connection by distributed generators (DGs) in the distribution network, this paper evaluates the effects on losses of different DG connection scenarios
Summary
Power losses are inherently associated with the transmission and distribution of electric power. A traditionally adopted criterion for minimising such losses in distribution networks is the containment of the reactive power absorbed by end-users, through stringent limitations (and penalties) on the minimum allowed power factor (PF) (frequently evaluated as mean value in the bill period). This kind of regulation, with possible national variants, is enforced in the majority of the countries. The scenario is further complicated considering that the most recent National and International Grid Connection Rules (see for instance [2, 3]) impose DGs and storage systems to participate in the network voltage regulation by modulating their reactive power injection, with possible consequences on the lossof-main protection effectiveness [4, 5]. Since the reactive power provision by DGs could become a fundamental aspect for network management, knowing the effects that present connection rules have on power losses is essential
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