Coordinated Use of Smart Inverters with Legacy Voltage Regulating Devices in Distribution Systems with High Distributed PV Penetration — Increase CVR Energy Savings

This paper studies the coordinated use of smart inverters with legacy voltage regulating devices to help increase the energy savings from conservation voltage reduction (CVR) in distribution systems with high photovoltaic penetration. Two voltage optimization algorithms are developed to evaluate the...

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Bibliographic Details
Published inIEEE transactions on smart grid Vol. 14; no. 3
Main Authors Ding, Fei, Baggu, Murali
Format Journal Article
LanguageEnglish
Published United States IEEE 18.07.2018
Subjects
CVR
energy saving
photovoltaic
power quality
POWER TRANSMISSION AND DISTRIBUTION
reactive power control
smart inverter
SOLAR ENERGY
volt/VAR
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Summary:This paper studies the coordinated use of smart inverters with legacy voltage regulating devices to help increase the energy savings from conservation voltage reduction (CVR) in distribution systems with high photovoltaic penetration. Two voltage optimization algorithms are developed to evaluate the CVR benefit by considering two types of smart inverter functions: aggregated reactive power control and autonomous volt/VAR control. In each algorithm, smart inverters are coordinately controlled with the operation of legacy voltage regulating devices including load tap changers and capacitor banks. Both algorithms are tested on representative utility distribution system models. In conclusion, simulation results demonstrate that the proposed algorithms can achieve around 1.8-3.6% energy savings when only using legacy voltage regulating devices and an additional 0.3-0.9% when adding smart inverters.
Bibliography:USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
AC36-08GO28308
NREL/JA-5D00-70255
ISSN:1949-3053
1949-3061