Publications
2016
Li, Xiwang; Wen, Jin; Malkawi, Ali
An operation optimization and decision framework for a building cluster with distributed energy systems Journal Article
In: Applied Energy, vol. 178, pp. 98-109, 2016, ISSN: 0306-2619.
Abstract | Links | BibTeX | Tags: Demand response, Multi-objective optimization, Particle swarm optimization, Smart building, Smart grid
@article{LI201698,
title = {An operation optimization and decision framework for a building cluster with distributed energy systems},
author = {Xiwang Li and Jin Wen and Ali Malkawi},
url = {https://www.sciencedirect.com/science/article/pii/S0306261916308054},
doi = {https://doi.org/10.1016/j.apenergy.2016.06.030},
issn = {0306-2619},
year = {2016},
date = {2016-01-01},
journal = {Applied Energy},
volume = {178},
pages = {98-109},
abstract = {Driven by the development of smart buildings and smart grids, numerous of research has focused on developing optimal operation strategies for smart buildings with the aims of reducing energy consumption and cost, as well as improving the grid reliability. Unfortunately, most of the studies from smart building perspective only target on a single building with elaborated energy forecasting models. Few of them addresses the effects of multiple buildings on power grid operation. On the other hand, a few studies from smart grid area focus on multiple buildings and their influence on power grid, they usually, however, use simplified linear energy forecasting models, which are hard to guarantee the findings reflecting the cases in real fields. As a result, this research proposes to bridge this research gap, through developing and validating high fidelity energy forecasting models for a building cluster with multiple buildings and distributed energy systems, as well as creating a collaborative operation framework to determining the optimal operation strategies of this building cluster. The operation framework utilizes multi-objective optimizations to determine the operation strategies: building temperature setpoints, energy storage charging and discharging schedules, etc., using particle swarm optimization. Pareto curves for energy cost saving and thermal comfort maintaining are also derived with different thermal comfort requirements. The results from this study show that the developed building cluster collaborative operation framework is able to reduce the energy cost by 12.1–58.3% under different electricity pricing plans and thermal comfort requirements.},
keywords = {Demand response, Multi-objective optimization, Particle swarm optimization, Smart building, Smart grid},
pubstate = {published},
tppubtype = {article}
}
Driven by the development of smart buildings and smart grids, numerous of research has focused on developing optimal operation strategies for smart buildings with the aims of reducing energy consumption and cost, as well as improving the grid reliability. Unfortunately, most of the studies from smart building perspective only target on a single building with elaborated energy forecasting models. Few of them addresses the effects of multiple buildings on power grid operation. On the other hand, a few studies from smart grid area focus on multiple buildings and their influence on power grid, they usually, however, use simplified linear energy forecasting models, which are hard to guarantee the findings reflecting the cases in real fields. As a result, this research proposes to bridge this research gap, through developing and validating high fidelity energy forecasting models for a building cluster with multiple buildings and distributed energy systems, as well as creating a collaborative operation framework to determining the optimal operation strategies of this building cluster. The operation framework utilizes multi-objective optimizations to determine the operation strategies: building temperature setpoints, energy storage charging and discharging schedules, etc., using particle swarm optimization. Pareto curves for energy cost saving and thermal comfort maintaining are also derived with different thermal comfort requirements. The results from this study show that the developed building cluster collaborative operation framework is able to reduce the energy cost by 12.1–58.3% under different electricity pricing plans and thermal comfort requirements.
2014
Li, Xiwang; Wen, Jin
Review of building energy modeling for control and operation Journal Article
In: Renewable and Sustainable Energy Reviews, vol. 37, pp. 517-537, 2014, ISSN: 1364-0321.
Abstract | Links | BibTeX | Tags: Building energy modeling, Building optimal control, Demand response, Energy generation system, Energy storage system
@article{LI2014517,
title = {Review of building energy modeling for control and operation},
author = {Xiwang Li and Jin Wen},
url = {https://www.sciencedirect.com/science/article/pii/S1364032114003815},
doi = {https://doi.org/10.1016/j.rser.2014.05.056},
issn = {1364-0321},
year = {2014},
date = {2014-01-01},
journal = {Renewable and Sustainable Energy Reviews},
volume = {37},
pages = {517-537},
abstract = {Buildings consume about 41.1% of primary energy and 74% of the electricity in the U.S. Better or even optimal building energy control and operation strategies provide great opportunities to reduce building energy consumption. Moreover, it is estimated by the National Energy Technology Laboratory that more than one-fourth of the 713GW of U.S. electricity demand in 2010 could be dispatchable if only buildings could respond to that dispatch through advanced building energy control and operation strategies and smart grid infrastructure. Energy forecasting models for building energy systems are essential to building energy control and operation. Three general categories of building energy forecasting models have been reported in the literature which include white-box (physics-based), black-box (data-driven), and gray-box (combination of physics based and data-driven) modeling approaches. This paper summarizes the existing efforts in this area as well as other critical areas related to building energy modeling, such as short-term weather forecasting. An up-to-date overview of research on application of building energy modeling methods in optimal control for single building and multiple buildings is also summarized in this paper. Different model-based and model-free optimization methods for building energy system operation are reviewed and compared in this paper. Agent based modeling, as a new modeling strategy, has made a remarkable progress in distributed energy systems control and optimization in the past years. The research literature on application of agent based model in building energy system control and operation is also identified and discussed in this paper.},
keywords = {Building energy modeling, Building optimal control, Demand response, Energy generation system, Energy storage system},
pubstate = {published},
tppubtype = {article}
}
Buildings consume about 41.1% of primary energy and 74% of the electricity in the U.S. Better or even optimal building energy control and operation strategies provide great opportunities to reduce building energy consumption. Moreover, it is estimated by the National Energy Technology Laboratory that more than one-fourth of the 713GW of U.S. electricity demand in 2010 could be dispatchable if only buildings could respond to that dispatch through advanced building energy control and operation strategies and smart grid infrastructure. Energy forecasting models for building energy systems are essential to building energy control and operation. Three general categories of building energy forecasting models have been reported in the literature which include white-box (physics-based), black-box (data-driven), and gray-box (combination of physics based and data-driven) modeling approaches. This paper summarizes the existing efforts in this area as well as other critical areas related to building energy modeling, such as short-term weather forecasting. An up-to-date overview of research on application of building energy modeling methods in optimal control for single building and multiple buildings is also summarized in this paper. Different model-based and model-free optimization methods for building energy system operation are reviewed and compared in this paper. Agent based modeling, as a new modeling strategy, has made a remarkable progress in distributed energy systems control and optimization in the past years. The research literature on application of agent based model in building energy system control and operation is also identified and discussed in this paper.