基于调频服务的新型光-储电站容量规划及运行策略

doi:10.11930/j.issn.1004-9649.202210083

摘要/Abstract

摘要： 为充分利用新型光-储电站参与电网调频的优势并考虑运行经济性问题，针对光伏组件、飞轮储能、磷酸铁锂储能的特点，建立各自全生命周期模型，并提出一种降低储能电池衰减、提高调频性能的协调运行策略。然后，依据一、二次调频机制，以调频收益最大为优化目标，建立光-储电站参与电网调频容量规划模型。最后，在Matlab软件中搭建光-储系统仿真模型。仿真结果表明：混合储能联合光伏备用容量在保障秒级一次调频、分钟级二次调频需求的基础上，可以实现资源合理规划，提高调频经济性和可靠性；此外，飞轮储能成本降低可以提高自身容量配置及电站调频收益，缩短投资回报年限。

关键词: 光-储电站, 混合储能, 光伏备用容量, 多时间尺度, 调频

Abstract: In order to take full advantages of the new PV-Storage power station participating in power grid multi-time scale frequency modulation while considering the operation economy. First of all, according to the characteristics of photovoltaic modules, flywheel energy storage and lithium iron phosphate energy storage, their life cycle models are established respectively, and a coordinated operation strategy is proposed to reduce energy storage battery attenuation and improve frequency modulation performance. Second, on the basis of the primary and secondary frequency modulation mechanism, the model of PV-Storage power station participating in power grid frequency modulation capacity planning is established with the maximization of the frequency modulation revenue as the optimization objective function. Finally, a simulation model of PV-Storage system is built by virtue of Matlab software. The simulation results show that, as it is guaranteed that the requirements are fully met for second-level primary frequency modulation and minute-level secondary frequency modulation, the hybrid energy storage combined with photovoltaic reserve capacity can make resource planning more reasonable and improve both the economy and reliability of frequency modulation. Moreover, the reduction of flywheel cost will allow more capacity allocation so as to increase the frequency modulation income, hence the investment return period can be shortened.

Key words: PV-storage power station, hybrid energy storage, photovoltaic reserve capacity, multiple time scales, frequency modulation

钱国明, 孟杰, 朱海东, 丁泉, 陈孝煜. 基于调频服务的新型光-储电站容量规划及运行策略[J]. 中国电力, 2023, 56(6): 132-138,147.

QIAN Guoming, MENG Jie, ZHU Haidong, DING Quan, CHEN Xiaoyu. Capacity Planning and Operation Strategy of New PV-Storage Power Station Based on Frequency Modulation Service[J]. Electric Power, 2023, 56(6): 132-138,147.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202210083

https://www.electricpower.com.cn/CN/Y2023/V56/I6/132

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