Demands Assessment Method of Energy Storage Power Sources in Grid Frequency Regulation

doi:10.3969/j.issn.1000－7229.2016.08.010

Abstract

Abstract: Based on wind power fluctuation characteristics, this paper researches the impact of large-scale wind power integration on power grid frequency. We defined the quantitative indicators to study the impact of wind power integration on grid frequency; constructed an equivalent model of regional grid and the simulation model of energy storage power sources participating in grid primary frequency regulation; and analyzed the grid frequency fluctuation characteristics with wind power integration by simulation under two conditions: the traditional grid primary frequency regulation and the energy storage sources participating in that. The results show that by utilizing the property of fast power input and output of energy storage to assist in primary frequency regulation, the impact of wind power medium-and high-frequency fluctuation components on grid frequency can be effectively reduced, the grid frequency fluctuation can be significantly suppressed, and the capacity demands and the pressure of traditional units to perform grid secondary frequency regulation can be also greatly reduced, thus demonstrating the technical necessity of energy storage sources participating in grid frequency regulation under the conditions of large-scale wind power integration.

Key words: wind power fluctuation, frequency regulation, energy storage power sources, demand analysis

CLC Number:

TM 614

ZHOU Tingting, LI Xinran, JIANG Xuejiao. Demands Assessment Method of Energy Storage Power Sources in Grid Frequency Regulation[J]. Electric Power Construction, 2016, 37(8): 65-.

References

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