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Battery Degradation Modeling in Hybrid Power Plants: An Island System Unit Commitment Study

Conference ·
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As hybrid power plants (HPPs), such as photovoltaic (PV) and battery combinations, become increasingly important in power systems with high renewable energy penetration to address PV variability and ensure grid stability. This paper focuses on the urgent need to model the coordination between PV and battery systems in HPPs while accounting for battery degradation. We present a generation scheduling model that explicitly incorporates PV-battery hybridization in the unit commitment problem. Moreover, the cost function of the HPP scheduling problem endogenously considers battery degradation with adjustable weights to strike a balance between minimizing production costs and prolonging battery life, particularly when providing energy arbitrage and ancillary services. Using a realistic island system simulation, we demonstrate that accounting for battery degradation in the scheduling problem can significantly extend battery life with only minor additional production costs.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2203230
Report Number(s):
NREL/CP-5D00-87817; MainId:88592; UUID:a5ead7df-6072-42c8-824c-72e09164271d; MainAdminID:70905
Resource Relation:
Conference: Presented at the 2023 IEEE Kansas Power and Energy Conference (KPEC), 27-28 April 2023, Manhattan, Kansas
Country of Publication:
United States
Language:
English

References (9)

Analysis of battery lifetime extension in a SMES-battery hybrid energy storage system using a novel battery lifetime model June 2015
A Comprehensive Review on the Characteristics and Modeling of Lithium-Ion Battery Aging June 2022
A Computationally Efficient Mixed-Integer Linear Formulation for the Thermal Unit Commitment Problem August 2006
Practical Operations of Energy Storage Providing Ancillary Services: From Day-Ahead to Real-Time April 2021
Providing Ancillary Services with Photovoltaic Generation in Multi- Timescale Grid Operation April 2021
Modeling of Lithium-Ion Battery Degradation for Cell Life Assessment March 2018
Optimal Residential Battery Scheduling with Asset Lifespan Consideration October 2020
A Multi-Timescale Two-Stage Robust Grid-Friendly Dispatch Model for Microgrid Operation January 2020
Validation of Maui PSCAD Model: Motivation, Methodology, and Lessons Learned April 2021

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Related Subjects

ENERGY STORAGE
POWER TRANSMISSION AND DISTRIBUTION
battery degradation
hybrid power plant
optimization
PV
unit commitment