| 引用本文: | 崔红芬,杨波,蒋叶,等.基于模糊控制和SOC自恢复储能参与二次调频控制策略[J].电力系统保护与控制,2019,47(22):89-97.[点击复制] |
| CUI Hongfen,YANG Bo,JIANG Ye,et al.Strategy based on fuzzy control and self adaptive modification of SOC involved in secondary frequency regulation with battery energy storage[J].Power System Protection and Control,2019,47(22):89-97[点击复制] |
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| 摘要: |
| 通过对储能电池基于区域控制偏差ACE信号和区域控制需求ARR信号参与系统AGC控制的优缺点进行分析，提出了一种综合控制方式，并定义了切换的时机和深度。即在系统频率恶化，且|Df|较大时，基于模糊控制理论根据SOC状态来平滑储能电池的出力深度；在系统状态良好，且|Df|较小时，为充分利用传统机组二次调频的剩余调频容量，对储能进行SOC自恢复。并根据定义的评价指标，利用Matlab/Simulink对储能协同传统机组参与电网二次调频，选取典型连续扰动与传统策略进行了对比仿真。结果表明，所提出的控制策略兼顾减少最大频偏和稳态频偏的优点；相较于基于ARR的控制方式对储能电池的容量和功率需求更小，相较于基于ACE的控制方式其调频效果更优且对常规机组的利用率更高；提升了储能电池参与二次调频的调频能力。 |
| 关键词: 储能电池 二次调频 ACE ARR 模糊控制 SOC自恢复 |
| DOI：10.19783/j.cnki.pspc.181558 |
| 投稿时间：2018-12-15修订日期：2019-05-31 |
| 基金项目:国家电网有限公司科技项目资助(NY71-18- 014)“面向电网的储能电站优化配置及控制策略研究”;国家自然科学基金项目资助(51677059) |
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| Strategy based on fuzzy control and self adaptive modification of SOC involved in secondary frequency regulation with battery energy storage |
| CUI Hongfen,YANG Bo,JIANG Ye,TAN Zhuangxi,CUI Dai,LI Peiqiang |
| (China Electric Power Research Institute Co., Ltd., Nanjing 210003, China;Hunan University, Changsha 410082, China;State Grid Liaoning Electric Power Co., Ltd., Shenyang 110000, China) |
| Abstract: |
| Through the analysis of advantages and disadvantages of ACE signal and ARR signal based on battery energy storage participating in AGC, an integrated control method is proposed and the timing and depth of switch are also defined. That is when the system frequency being deteriorated, the|Df| is large, according to the fuzzy control theory, smoothing the output depth of the energy storage battery is based on the SOC. When the system is in good condition and the |Df| is small, to make full use of the remaining capacity of traditional generator in secondary frequency regulation, the storage need doing self adaptive modification of SOC. With the definition of the evaluation indicators, it uses Matlab/Simulink to participate in the secondary frequency regulation of energy grid and selects a typical continuous disturbance in simulation. Compared with the traditional strategy, the results show that the proposed method has advantages in terms of reducing the frequency deviation and steady frequency deviation. Compared to the ARR-based control method, the capacity and power requirements of the energy storage battery are smaller; compared to the ACE-based control method, the frequency modification effect is better and the utilization rate of the conventional generator is higher. This control strategy can promote the secondary frequency regulation ability. This work is supported by Science and Technology Project of State Grid Corporation China (No. NY71-18-014):Energy Storage Substation Optimization Configuration and Control Oriented to Power Grid and National Natural Science Foundation of China (No. 51677059). |
| Key words: battery energy storage secondary frequency modulation ACE ARR fuzzy control self adaptive modification of SOC |
