Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant

Yiwen Liao; Weijia Yang; Zhecheng Wang; Yifan Huang; C. Y. Chung

doi:10.17775/CSEEJPES.2022.06420

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Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant

Regular Papers | 更新时间：2026-10-15

- Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant
- Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant
- 中国电机工程学会电力与能源系统学报(英文) 2024年10卷第5期页码：2127-2137
- 作者机构：
  
  1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University,Wuhan,China
  2. Department of Electrical Engineering, The Hong Kong Polytechnic University,Hong Kong,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2022.06420
  中图分类号：
- 纸质出版：2024-09-01
- 稿件说明：
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Yiwen Liao, Weijia Yang, Zhecheng Wang, 等. Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(5):2127-2137.

Yiwen Liao, Weijia Yang, Zhecheng Wang, et al. Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant[J]. CSEE Journal of Power and Energy Systems, 2024, 10(5): 2127-2137.
Yiwen Liao, Weijia Yang, Zhecheng Wang, 等. Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(5):2127-2137. DOI： 10.17775/CSEEJPES.2022.06420.

Yiwen Liao, Weijia Yang, Zhecheng Wang, et al. Mechanism of Primary Frequency Regulation for Battery Hybridization in Hydropower Plant[J]. CSEE Journal of Power and Energy Systems, 2024, 10(5): 2127-2137. DOI： 10.17775/CSEEJPES.2022.06420.

摘要

Abstract

Battery hybridization in hydropower plants is a hydropower flexibility enhancement technology innovation that can potentially expand hydropower's contributions to the grid

but its fundamental characteristics and influencing mechanisms are still unclear. In this paper

primary frequency regulation (PFR) performance and the mechanism of this new technology are studied. A battery hybridized hydropower plant (BH-HPP) model

based on a field-measured-data-based hydropower plant (HPP) model and a verified battery simplified model

is established. Analysis of system stability and dynamics is undertaken for three different battery control strategies by root locus and participation factor methods. Compared to conventional HPPs

analysis results theoretically reveal BH-HPP can not only accelerate system regulation rapidity but also effectively enlarge HPP stability region during PFR process. Time domain simulation verifies the results and further shows synthetic control has better performance among introduced strategies. Besides

initial design ranges of control parameters considering battery capacity and a renewable energy source scenario case are also discussed. This work could provide theoretical support for flexibility enhancement solutions for hydropower systems.

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references

5. HydroWIRES Initiative Research Roadmap . ( 2022 ). U.S. Department of Energy, America. [Online ] . Available: https://www.energy.gov/sites/default/files/2022-02/HydroWIRES%20Roadmap%20FINAL%20%28508%20Compliant%29_0.pdf.

6. WORLD-ENERGY. ( 2021, Aug. ). RWE combines hydropower with mega-batteries to balance grid . [Online ] . Available: https://www.world-energy.org/article/19733.html.

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