Investment Strategy of Distribution Automation Based on Timed Petri Nets

doi:10.12204/j.issn.1000-7229.2023.05.014

Abstract

Abstract:

Distribution automation transformation of existing distribution network equipment can improve the reliability of distribution networks. Seeking the best balance between the reliability improvement of the distribution network and the economy of transformation is a key problem to be solved in the investment of distribution automation. This paper proposes a distribution automation investment strategy based on a time Petri net, establishes a modular time Petri net model of the distribution network, and applies the principle of improving the unit power supply reliability of the distribution network and minimizing the cost to ensure the economy of distribution automation investment. The effectiveness of the proposed model is verified using relevant examples. The proposed method improves the economy of investment by ensuring the improvement of power supply reliability, and provides a reference for distribution network planning and the technical transformation of power supply companies.

Key words: distribution network, reliability, timed Petri nets, distribution automation, investment strategy

CLC Number:

TM715

WU Bo, LIU Chunming, XIN Wenkai, ZHANG Xueyu, LI Zhuozheng, XU Huanan. Investment Strategy of Distribution Automation Based on Timed Petri Nets[J]. ELECTRIC POWER CONSTRUCTION, 2023, 44(5): 141-148.

Figures/Tables 10

Fig.1 Schematic diagram of load area Li and Lj connected by switch K n (power supply state)

Fig.2 Timed Petri nets model of two load areas connected by switch Kn (power supply state)

Fig.3 Modular timed Petri nets model (power off state)

Table 1 Distribution automation comparision

Fig.4 Determination process of investment optimization strategy for distribution automation configuration scheme

Fig.5 Power distribution network structure

Table 2 Line length and number of users in each load area

Fig.6 Modular timed Petri net model(L6 fault)

Table 3 State of timed Petri nets model(L6 fault)

Table 4 Economic optimal distribution automation configuration under different ASAI constraints

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