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- Title
Voltage Coordination Control Strategy for Low Voltage Distribution Networks in Western Rural Areas under Photovoltaic Storage Access.
- Authors
Zhimin Lei; Qing Xu; Guojie Hao; Chunyu Wei; Mingle Yang
- Abstract
The low-voltage distribution network (LVDN) in western rural areas covers a large area and has long power supply lines, so the access of photovoltaic (PV) system will solve the problem of unstable or insufficient power supply. But PV access to LVDN will produce many problems, such as harmonic pollution, and trigger voltage fluctuations. Voltage overruns significantly impact the performance of PV systems and are considered a critical factor affecting their overall energy consumption. This study conducts an initial analysis of the impact mechanism associated with the access of PV systems into LVDN. It further examines the diverse implications of PV access on the original distribution lines, considering various perspectives. Furthermore, building upon the aforementioned analysis, this study introduces a voltage coordination control strategy designed to alleviate voltage fluctuations in low-voltage distribution networks (LVDN) in rural areas of western regions during the integration of PV and energy storage systems (ESS). The proposed approach achieves accurate voltage control and dynamic regulation at the point of common coupling (PCC) by leveraging the residual reactive power regulation capability of the inverter and the direct voltage regulation capability of the ESS. Lastly, the simulation results validate the efficacy and dependability of the proposed control strategy.
- Subjects
VOLTAGE control; ENERGY storage; RURAL geography; POWER resources; LOW voltage systems
- Publication
Engineering Letters, 2024, Vol 32, Issue 7, p1412
- ISSN
1816-093X
- Publication type
Article