An Active Distribution Network Voltage Optimization Method Based on Source-Network-Load-Storage Coordination and Interaction

Junyu Liang (), Jun Zhou, Xingyu Yuan, Wei Huang, Xinyong Gong and Guipeng Zhang
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Junyu Liang: Electric Power Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China
Jun Zhou: Dongchuan Power Supply Bureau of Yunnan Power Grid Co., Ltd., Kunming 651500, China
Xingyu Yuan: Electric Power Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China
Wei Huang: Kunming Power Supply Bureau of Yunnan Power Grid Co., Ltd., Kunming 650106, China
Xinyong Gong: Kunming Power Supply Bureau of Yunnan Power Grid Co., Ltd., Kunming 650106, China
Guipeng Zhang: Production and Technology Department of Yunnan Power Grid Co., Ltd., Kunming 650032, China

Energies, 2024, vol. 17, issue 18, 1-18

Abstract: In response to global energy, environment, and climate concerns, distributed photovoltaic (PV) power generation has seen rapid growth. However, the intermittent and uncertain nature of PVs can cause voltage fluctuations in distribution systems, threatening their stability. To address this challenge, this paper proposes an active distribution network voltage optimization method, of which the main contribution is the development of a comprehensive voltage optimization strategy that integrates day-ahead prediction and real-time adjustment, significantly enhancing the stability and efficiency of distribution networks with high PV penetration. In the day-ahead prediction stage, the forecast scenarios of load and PV output guide network reconfiguration for improved voltage distribution. In the real-time operation stage, flexible regulation of PV and energy storage systems is used to adjust power outputs, further optimizing voltage quality. Simulations on the IEEE 33-bus system show that the method effectively improves voltage distribution, enhances renewable energy consumption, and ensures the safe, economic operation of the distribution system.

Keywords: distribution network; network reconfiguration; energy storage; photovoltaic power generation; stochastic optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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