Research on the simulation of a new compensation strategy for dynamic voltage correction device
Xuewei Zhang1,2*, Xiaojuan Sun1, Tianfeng Wang3
1School of Electronic and Information Engineering, Xi’an Technological University,
Xi’an, 710021, China
2School of Mechanical and Electrical Engineering, Xi’an Technological University,
Xi’an, 710021, China
3Xi'an Kaitian electrical reliability laboratory Co., Ltd, Xi’an, 710077, China
*Corresponding author’s e-mail: xueweizhang163@163.com
Abstract.
A new detection and compensation method for voltage sag is proposed. Dynamic
voltage correction device(DVCD) is the most effective device to solve voltage sag. Based on
the shortcomings of the traditional compensation strategy, the compensation characteristics of
the compensation strategy are analyzed systematically. This paper proposes a new
compensation method based on the traditional minimum energy compensation method, which
uses different minimum energy methods for different sags, namely zero active power exchange
and minimum energy exchange. Through Simulink to establish the simulation model of
minimum energy method, and make simulation analysis. The simulation results show that the
method can achieve the minimum output active power while ensuring the compensation effect,
which proves the feasibility and effectiveness of the method. This method can make full use of
energy storage of equipment and has high economic benefits.
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