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Title: Impacts of Voltage-Based Grid-Support Functions on Energy Production of PV Customers: Preprint

Abstract

This paper presents the impact of grid-support utility-interactive inverter functions, such as volt/volt-ampere reactive and volt/watt controls, on quasi-steady-state feeder voltages and on photovoltaic (PV) customer energy production on a real distribution feeder in Oahu, Hawai'i. These autonomous inverter controls provide an effective means to modulate active and reactive power based on local voltage measurements and therefore serve as good candidates for non-wire alternatives to increase PV hosting capacity. However, because the activation of these functions can result in PV energy curtailment, this study addresses the concerns about the impact of these advanced inverter controls on curtailment through detailed quasi-static time series (QSTS) simulations. This study proposes four metrics-maximum and average grid-support function curtailments, average increased generation, and average net generation change-to assess the impact of a given control on PV systems located on customer sites. For representative scenarios modeled in detail, it was found that curtailment of PV production is negligible for customers where peak voltage is within ANSI C84.1 ranges. A reliable relationship between curtailment and peak customer voltage is demonstrated, allowing peak voltage to be used as an indicator of curtailment without the need to measure curtailment directly.

Authors:
 [1];  [1]; ORCiD logo [1];  [2]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. Colorado State University
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S); Hawaiian Electric Companies
OSTI Identifier:
1570821
Report Number(s):
NREL/CP-5D00-72701
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2019 IEEE Power and Energy Society General Meeting (IEEE PES GM), 4-8 August 2019, Atlanta, Georgia
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 24 POWER TRANSMISSION AND DISTRIBUTION; voltage control; reactive power control; active power control; advanced inverter control; photovoltaic

Citation Formats

Giraldez Miner, Julieta I, Emmanuel, Michael, Hoke, Anderson F, and Suryanarayanan, Siddharth. Impacts of Voltage-Based Grid-Support Functions on Energy Production of PV Customers: Preprint. United States: N. p., 2019. Web.
Giraldez Miner, Julieta I, Emmanuel, Michael, Hoke, Anderson F, & Suryanarayanan, Siddharth. Impacts of Voltage-Based Grid-Support Functions on Energy Production of PV Customers: Preprint. United States.
Giraldez Miner, Julieta I, Emmanuel, Michael, Hoke, Anderson F, and Suryanarayanan, Siddharth. Fri . "Impacts of Voltage-Based Grid-Support Functions on Energy Production of PV Customers: Preprint". United States. https://www.osti.gov/servlets/purl/1570821.
@article{osti_1570821,
title = {Impacts of Voltage-Based Grid-Support Functions on Energy Production of PV Customers: Preprint},
author = {Giraldez Miner, Julieta I and Emmanuel, Michael and Hoke, Anderson F and Suryanarayanan, Siddharth},
abstractNote = {This paper presents the impact of grid-support utility-interactive inverter functions, such as volt/volt-ampere reactive and volt/watt controls, on quasi-steady-state feeder voltages and on photovoltaic (PV) customer energy production on a real distribution feeder in Oahu, Hawai'i. These autonomous inverter controls provide an effective means to modulate active and reactive power based on local voltage measurements and therefore serve as good candidates for non-wire alternatives to increase PV hosting capacity. However, because the activation of these functions can result in PV energy curtailment, this study addresses the concerns about the impact of these advanced inverter controls on curtailment through detailed quasi-static time series (QSTS) simulations. This study proposes four metrics-maximum and average grid-support function curtailments, average increased generation, and average net generation change-to assess the impact of a given control on PV systems located on customer sites. For representative scenarios modeled in detail, it was found that curtailment of PV production is negligible for customers where peak voltage is within ANSI C84.1 ranges. A reliable relationship between curtailment and peak customer voltage is demonstrated, allowing peak voltage to be used as an indicator of curtailment without the need to measure curtailment directly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

Conference:
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