Distributed Reactive Power Control Strategy of Distribution Network Considering Massive Distributed Energy Access

doi:10.11930/j.issn.1004-9649.202403107

Abstract

Abstract:

In view of the influence of unconventional safety risks on new power systems, a two-layer cooperative reactive power control strategy considering the uncertainty of source load was proposed. The reactive power optimization model of distribution network was established with the aim of minimizing the loss of distribution network and considering various regulation equipment constraints. The distribution network distributed reactive power optimization solution framework was constructed. The outer layer adopted the adaptive overrelaxation penalty parameter alternating direction method of multipliers (ADMM) for global update iterative solution. In the inner layer, the column-and-constraint generation (C&CG) algorithm was used to solve the two-stage distributionally robust reactive power optimization model for each region. The proposed strategy can effectively improve the solving efficiency of distributed reactive power optimization model, reduce network losses, and improve the stability of the new power system.

Key words: new power system, reactive power optimization, distributionally robust optimization

CLC Number:

TM73

Suwei ZHAI, Yinyin LI, Fan DU, Wenyun LI, Kaiyan PAN, Junkai LIANG. Distributed Reactive Power Control Strategy of Distribution Network Considering Massive Distributed Energy Access[J]. Electric Power, 2024, 57(8): 138-144.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202403107

https://www.electricpower.com.cn/EN/Y2024/V57/I8/138

Figures/Tables 8

Fig.1 Improved 69-bus example system

Fig.2 The curve of typical scenarios

Fig.3 The curve of the objective function

Fig.4 The curve of error

Fig.5 State change of ESS

Fig.6 OLTC gear change curve

Fig.7 CB switching group number change curve

Fig.8 Reactive power compensation curve of SVC

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