上海交通大学学报

上海交通大学学报

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考虑电池储能退出过程的风储联合调频控制方法

  

  1. 1.上海电力大学 电气工程学院，上海 200090；

    2.国家电网有限公司华东分部，上海 200120

  • 作者简介:徐波（1981—），副教授，现主要从事新能源并网分析与控制研究。E-mail：xubo@shiep.edu.cn
  • 基金资助:
    国家自然科学基金（52377111）资助项目

Wind Turbine and Energy Storage Equipment Frequency Regulation Control Method Considering Battery Energy Storage Exit Process

  1. 1. School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China；

    2. East Branch of State Grid Corporation of China, Shanghai 200120, China

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摘要： 附加电池储能可以避免风电机组调频过程中的频率二次跌落，提高风电机组调频性能，但电池储能退出也有可能对频率恢复造成再次危害。为避免风储一次调频过程中由储能退出导致的频率再次跌落问题，首先阐明储能退出造成频率再次跌落的机理，提出一种基于牛顿冷却定理的储能退出控制方法；然后以此为基础从风储输出互补的角度提出风储联合调频策略，利用风电机组与储能的特性实现储能的平滑退出与联合调频；最后，搭建含高渗透风电机组的系统模型，仿真结果表明该策略下储能退出过程产生的有功骤降由非零值变为零，验证了所提控制方法的有效性。

关键词: 频率响应, 风力发电, 储能, 频率二次跌落

Abstract: The integration of battery energy storage can prevent the secondary frequency drop during wind power frequency regulation, aiding in the improvement of wind turbine's frequency regulation performance. However, the exit of energy storage may also pose a risk to frequency recovery. To mitigate the secondary frequency drop caused by battery energy storage exit during wind-storage integrated primary frequency regulation. Firstly, the mechanism of frequency drop caused by the exit of energy storage in wind-storage joint frequency regulation is elaborated, and a control method for energy storage withdrawal based on Newton's cooling law is proposed. Then, based on this, a joint frequency regulation strategy for wind-storage systems is introduced, utilizing the complementary characteristics of wind power and energy storage to achieve smooth energy storage exit and collaborative frequency regulation. Finally, a simulation model incorporating high-penetration wind turbines was developed. The simulation results demonstrate that the active power sudden drop during the energy storage disengagement process transitions from a non-zero value to zero under this strategy, which validates the effectiveness of the proposed control method.

Key words: frequency response, wind power, energy storage, frequency secondary drop

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