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On the Round-Trip Efficiency of an HVAC-Based Virtual Battery.
- Source :
- IEEE Transactions on Smart Grid; Jan2020, Vol. 11 Issue 1, p403-410, 8p
- Publication Year :
- 2020
-
Abstract
- Flexible loads, especially heating, ventilation, and air-conditioning (HVAC) systems can be used to provide a battery-like service to the power grid by varying their demand up and down over a baseline. Recent work has reported that providing virtual energy storage with HVAC systems leads to a net loss of energy, akin to a low round-trip efficiency (RTE) of a battery. In this paper, we rigorously analyze the RTE of a virtual battery through a simplified physics-based model. We show that the low RTEs reported in recent experimental and simulation work are an artifact of the experimental/simulation setup. When the HVAC system is repeatedly used as a virtual battery, the asymptotic RTE is 1. Robustness of the result to assumptions made in the analysis is illustrated through a simulation case study. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19493053
- Volume :
- 11
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Smart Grid
- Publication Type :
- Academic Journal
- Accession number :
- 140938318
- Full Text :
- https://doi.org/10.1109/TSG.2019.2923588