PCC Voltage Stabilization using an Autonomous Volt-VAR Curve Change in Smart Inverters

被引：0
|
作者：
Cha J.-Y. [1 ]
Kim H. [2 ]
Maeng C. [2 ]
Lee K.-B.
机构：
[1] Dept. of Electrical Computer Engineering, Ajou University
[2] Korea Electric Power Corporation(KEPCO), Research Institute
来源：
Transactions of the Korean Institute of Electrical Engineers | 2022年 / 71卷 / 04期
关键词：
Grid-connected inverter; PCC voltage; Smart inverter; Volt-VAR control; Volt-VAR curve;
D O I：
10.5370/KIEE.2022.71.4.625
中图分类号：
学科分类号：
摘要：
This paper proposes a method of stabilizing a point of common coupling (PCC) voltage using an autonomous Volt-VAR curve change in smart inverters. When the interconnection capacity of distributed energy resources rapidly increases, the problem of a reverse power flow occurs and the PCC voltage becomes unstable. The smart inverter which is a grid-connected inverter for distributed energy resources performs Volt-VAR control in oder to stabilize the unstable PCC voltage. The smart inverter autonomously changes the Volt-VAR curve according to the PCC voltage. The smart inverter uses Volt-VAR curve with a larger slope if the PCC voltage is not stabilized when the Volt-VAR curve with a small slop is used. The Volt-VAR curve is maintained if the PCC voltage is stabilized using the Volt-VAR curve. The validity of the proposed method is verified by the simulation results and experimental results. Copyright ©The Korean Institute of Electrical Engineers
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页码：625 / 631
页数：6
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