skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Three-Phase AC Optimal Power Flow Based Distribution Locational Marginal Price: Preprint

Abstract

Designing market mechanisms for electricity distribution systems has been a hot topic due to the increased presence of smart loads and distributed energy resources (DERs) in distribution systems. The distribution locational marginal pricing (DLMP) methodology is one of the real-time pricing methods to enable such market mechanisms and provide economic incentives to active market participants. Determining the DLMP is challenging due to high power losses, the voltage volatility, and the phase imbalance in distribution systems. Existing DC Optimal Power Flow (OPF) approaches are unable to model power losses and the reactive power, while single-phase AC OPF methods cannot capture the phase imbalance. To address these challenges, in this paper, a three-phase AC OPF based approach is developed to define and calculate DLMP accurately. The DLMP is modeled as the marginal cost to serve an incremental unit of demand at a specific phase at a certain bus, and is calculated using the Lagrange multipliers in the three-phase AC OPF formulation. Extensive case studies have been conducted to understand the impact of system losses and the phase imbalance on DLMPs as well as the potential benefits of flexible resources.

Authors:
;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), NREL Laboratory Directed Research and Development (LDRD)
OSTI Identifier:
1358146
Report Number(s):
NREL/CP-5D00-68112
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the IEEE Eighth Conference on Innovative Smart Grid Technologies (IEEE ISGT 2017), 23-26 April 2017, Arlington, Virginia
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; distribution locational marginal price; optimal power flow

Citation Formats

Yang, Rui, and Zhang, Yingchen. Three-Phase AC Optimal Power Flow Based Distribution Locational Marginal Price: Preprint. United States: N. p., 2017. Web. doi:10.1109/ISGT.2017.8086032.
Yang, Rui, & Zhang, Yingchen. Three-Phase AC Optimal Power Flow Based Distribution Locational Marginal Price: Preprint. United States. doi:10.1109/ISGT.2017.8086032.
Yang, Rui, and Zhang, Yingchen. Wed . "Three-Phase AC Optimal Power Flow Based Distribution Locational Marginal Price: Preprint". United States. doi:10.1109/ISGT.2017.8086032. https://www.osti.gov/servlets/purl/1358146.
@article{osti_1358146,
title = {Three-Phase AC Optimal Power Flow Based Distribution Locational Marginal Price: Preprint},
author = {Yang, Rui and Zhang, Yingchen},
abstractNote = {Designing market mechanisms for electricity distribution systems has been a hot topic due to the increased presence of smart loads and distributed energy resources (DERs) in distribution systems. The distribution locational marginal pricing (DLMP) methodology is one of the real-time pricing methods to enable such market mechanisms and provide economic incentives to active market participants. Determining the DLMP is challenging due to high power losses, the voltage volatility, and the phase imbalance in distribution systems. Existing DC Optimal Power Flow (OPF) approaches are unable to model power losses and the reactive power, while single-phase AC OPF methods cannot capture the phase imbalance. To address these challenges, in this paper, a three-phase AC OPF based approach is developed to define and calculate DLMP accurately. The DLMP is modeled as the marginal cost to serve an incremental unit of demand at a specific phase at a certain bus, and is calculated using the Lagrange multipliers in the three-phase AC OPF formulation. Extensive case studies have been conducted to understand the impact of system losses and the phase imbalance on DLMPs as well as the potential benefits of flexible resources.},
doi = {10.1109/ISGT.2017.8086032},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 17 00:00:00 EDT 2017},
month = {Wed May 17 00:00:00 EDT 2017}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: