Power distribution network reconfiguration for bounded transient power loss

Abstract

We revisit the loss reduction problem for network reconfiguration in power distribution systems in this paper. Besides the conventional line power loss (LPL), in our model, we introduce a new concept -the transient power loss (TPL), which is mainly induced by the communication asynchronization and response delay. TPL is often overlooked in previous works because it's hard to measure in the conventional power networks. However, we can tackle this challenge in smart grid especially with the help of smart meter. In this paper, we propose a new heuristic greedy algorithm to achieve the minimal LPL with bounded TPL and we assess its performance via simulation based on the IEEE-33 nodes system.

Impact of Network Reconfiguration: Case Study of Port-Harcourt Town 132/33kV Sub-transmission Substation and Its 33/11kV Injection Substation Distribution Networks

“…Where: V i is the bus voltage at bus i; P i is the real power injected into the ith bus; Q i is the reactive power injected into the ith bus; Y ii is the diagonal element (admittance) of the Y-bus matrix; Y ik is the off-diagonal elements of the Ybus matrix and V k is the voltage at bus n. The solution computation is iterative, therefore, the number of iterations can be considerably reduced by using acceleration factor refer (12). (12) Where:…”

“…According to [12] network reconfiguration in distribution systems is one of the effective techniques to achieve loss reduction and improve distribution system automation. The network can be reconfigured for two reasons: load balancing and power loss reduction in the distribution system.…”