A Study on the Influence of Three-phase Unbalance of AC Side Voltage on the Operating Characteristics of VSC

Qi, Hao; Gu, Haibo; Jiao, Zaibin; He, Anyang; Li, Rui; Wu, Ming

doi:10.1109/ei247390.2019.9061791

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2023

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“…Due to the weak power supply capacity and large line impedance at some rural distribution networks, particularly some are single-phase systems, the distribution of electricity load is uneven. When the power grid is supplied, the three-phase imbalance is critical during the peak period, resulting in a low voltage situation [1]. When single-phase multi-point access of distributed photovoltaic (PV) power generation in a region occurs, uneven installation and distribution of PV power and complex power flow will cause fluctuations in the regional distribution network, voltage rise or fall, three-phase imbalance, and an increase of harmonic current.…”

Section: Introductionmentioning

confidence: 99%

A Power Balanced Control Model for Energy Storage Integration with Distribution Network

Huo

Wang²,

Chen³

et al. 2023

J. Phys.: Conf. Ser.

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The integration of an Energy Storage System (ESS) is difficult to commercialize within the current Chinese market mainly because of the lacking of supporting policy and breakthrough technologies. However, it is considered an appropriate approach in a certain circumstance, for instance, in a remote rural area. This work presents a power-balanced ESS integration model and its control method. By using a rural distributed network in southern China, the results show that the proposed model is able to improve the three-phase power imbalance issue.

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Section: Introductionmentioning

confidence: 99%