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Voltage Unbalance Mitigation in Low Voltage Distribution Networks with Photovoltaic Systems

Lookup NU author(s): Professor Phil Taylor


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This paper proposes a technique to mitigate the voltage unbalance issue caused by the high penetration of photovoltaic (PV) systems into the low voltage distribution networks (LVDN) using a single phase energy storage system (ESS). The ESS comprises a bi-directional power flow inverter and a battery bank. The system is capable of absorbing the excess power and delivering power to the network in order to keep the voltage unbalance factor (VUF) below the statutory limit of 1%. Investigations are carried out in the experimental small-scale energy zone (SSEZ). The experimental results demonstrate that the ESS is capable of mitigating the VUF of the network.

Publication metadata

Author(s): Huat-Chua K, Seng-Lim Y, Wong J, Taylor P, Morris E, Morris S

Publication type: Article

Publication status: Published

Journal: Journal of Electronic Science and Technology

Year: 2012

Volume: 10

Issue: 1

Pages: 1-6

ISSN (electronic): 1674-862X

Publisher: Dianzi Keji Daxue