Research on the Allocated Capacity of Energy Storage Based on Adjustment of SOC

Abstract:

In order to remedy errors in wind power prediction, a common method adopted in wind farms is the configuration of a certain capacity of energy storage at the grid interface. The traditional approach for configuring capacity ignores the problems of excessive allocation and the adjustment of SOC, and for this reason, the paper proposes a model of wind power coupling by adding a resistance load at the grid connection point. In addition, this paper proposes a control strategy to improve the operation of energy storage systems through the adjustment of SOC in order to maintain a high level of SOC, and proposes a new approach to deploying storage capacity based on this. According to the analysis of a wind farm in Northeast China, a new approach to the configuration of the energy storage can use local utility of a little electrical energy to reduce the allocated capacity, and furthermore, this method also has better control characteristics.

• Periodical: Applied Mechanics and Materials (Volumes 687-691)
• Pages: 3502-3507
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.687-691.3502
• Online since: November 2014
• Authors: Wu Chang Dai, Yu Dong, Xin Fei Zhao, Xian Jun Shang
• Keywords: Energy Storage Configuration, Resistance Load, SoC, Wind Power Prediction Error

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