引用本文: | 吴 鸣,李振伟,孙丽敬.一种混合储能变换器的模型预测整体控制方法[J].电力系统保护与控制,2020,48(21):84-91.[点击复制] |
WU Ming,LI Zhenwei,SUN Lijing.A model predictive overall control method for a hybrid energy storage converter[J].Power System Protection and Control,2020,48(21):84-91[点击复制] |
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摘要: |
新能源发电渗透率逐渐提高,由新能源本身固有特性向电网引入的功率扰动不容忽视,且在高比例接入情况下对于新能源发电参与电网调节的需求越来越大,这对其系统功率响应性能提出了更高的要求。由蓄电池和超级电容组成的混合储能由于具有互补的能量特性,应用于新能源发电系统中可以帮助提升其整体的能量处理能力。为了充分发挥储能介质的功率特性,针对光伏发电系统中的应用,提出了一种应用于蓄电池-超级电容混合储能变换器的模型预测整体控制方法。根据变换器主电路的数学模型,结合混合储能的控制目标,设计了嵌入功率滤波器的模型预测整体控制策略。仿真结果表明提出的模型预测整体控制方法具有优越的功率响应特性与参数鲁棒性。 |
关键词: 新能源发电 功率响应 蓄电池-超级电容 混合储能 模型预测整体控制方法 参数鲁棒性 |
DOI:DOI: 10.19783/j.cnki.pspc.191590 |
修订日期:2020-04-06 |
基金项目:国家自然科学基金项目资助(51877201) |
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A model predictive overall control method for a hybrid energy storage converter |
WU Ming,LI Zhenwei,SUN Lijing |
(1. China Electric Power Research Institute Co., Ltd., Beijing 100192, China; 2. College of Automation and Electronic
Engineering, Qingdao University of Science and Technology, Qingdao 266061, China) |
Abstract: |
As the penetration rate of renewable energy generation increases, the power disturbance it introduces into the grid for its inherent characteristics cannot be ignored. In the case of high proportion access, the demand for renewable energy generation to participate in grid regulation is increasing. This puts higher demands on its power response performance. A hybrid energy storage consisting of battery and super capacitor, because of their complementary energy characteristics, can help improve the overall energy handling capacity of the renewable energy generation system. In order to take full advantage of energy storage media according to their power characteristics, a model predictive overall control method for the hybrid battery-super capacitor hybrid energy storage converter is proposed for application in a photovoltaic power generation system. Given a mathematical model of the bidirectional DC/DC converter, combined with the control objective of the hybrid energy storage, a Model Prediction Overall Control (MPC) strategy with embedded power filter is designed. The simulation results show that the proposed model predictive overall control method has superior power response characteristics and parameter robustness.
This work is supported by National Natural Science Foundation of China (No. 51877201). |
Key words: renewable energy generation power response battery-super capacitor hybrid energy storage model predictive overall control method parameter robustness |