Optimisation of battery capacity in a DC-power supply system of an office building
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1Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Department of Building Science, School of Architecture, Tsinghua University, Beijing 100084, China
2Shenzhen Institute of Building Research, Shenzhen 518049, China
3Lawrence Berkeley National Laboratory, Berkeley, CA, U.S.A
Electricity is the most important power supply in urban areas but the huge difference between peak and trough demands still remain a serious problem which has led to a conspicuous decline of efficiency in electricity use and a waste of renewable energy such as wind power and solar power. Recently the development of DC-power supply systems and distributed storage provides a new solution for peak-load shifting and with a better capacity of renewable power uptake. In this paper, a DC-building in the low-carbon city of Shenzhen is used as a case-study and the battery capacity has been calculated and optimised with the simulation. The main conclusions are that the battery capacity determined by discarding a little part of solar power can be reduced by a significant degree and the distributed battery deployment by floor prevails over the centralised battery deployment.
Zhao, L., Yan, R., Wang, F., Chen, H.J., Hao, B., Li, Y. and Feng, W. (2019). 'Optimisation of battery capacity in a DC-power supply system of an office building'. SET Proceedings, 18(1), pp. 323-332. https://doi.org/10.65582/set.2019.034
