Reliability Assessment of Distribution Network Considering Mobile Energy Storage Vehicles and Dynamic Zonal Coupling

Yang, Wei; Wang, Dan; Guo, Jingming; Zhang, Yijiao; Zhang, Jiajia; Bian, Zhaoyuan

doi:10.1007/s42835-023-01504-0

Cited by 1 publication

(1 citation statement)

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“…In response to the voltage over-limit issue induced by distributed photovoltaics, control strategies have been categorized into three main methods: reactive power compensation [7,8], active power output limitation [9], and comprehensive regulation of activereactive power [10,11]. With the high penetration rate of photovoltaics, the power output within distribution networks exhibits pronounced cyclical patterns, exacerbating the persistence of voltage over-limit occurrences and leading to inefficiencies in photovoltaic power generation.…”

Section: Introductionmentioning

confidence: 99%

Optimized Dual-Layer Distributed Energy Storage Configuration for Voltage Over-Limit Zoning Governance in Distribution Networks

Hao,

Lan,

Wang

et al. 2024

Energies

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In this study, an optimized dual-layer configuration model is proposed to address voltages that exceed their limits following substantial integration of photovoltaic systems into distribution networks. Initially, the model involved segmenting the distribution network’s voltage zones based on distributed photovoltaic governance resources, thereby elucidating the characteristics and governance requisites for voltages across distinct regions. Subsequently, a governance model for voltage limit exceedances, grounded in optimizing energy storage configurations, was formulated to mitigate photovoltaic power fluctuations by deploying energy storage systems. This model coordinates the reactive power output of photovoltaic installations with the active power consumption of energy storage systems, thereby augmenting voltage autonomy in the power grid. This study leveraged Karush–Kuhn–Tucker (KKT) conditions and the Big-M method to transform the dual-layer model into a single-layer linear model, thereby enhancing solution efficiency and precision. Finally, a simulation was carried out to demonstrate that the strategy proposed from this research not only achieves commendable economic efficiency, but also significantly improves the regional voltage effect by 28.7% compared to the optical storage capacity optimization model.

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Section: Introductionmentioning

confidence: 99%