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李咸善,叶浪,程杉. 基于混合储能系统的双馈风力发电系统直流电压控制策略[J]. 科学技术与工程, 2021, 21(8): 3141-3146.
LI Xian-shan,YE Lang,CHENG Shan.DC Voltage Control Strategy of Doubly-Fed Wind Power Generation System Based on Hybrid Energy Storage System[J].Science Technology and Engineering,2021,21(8):3141-3146.
基于混合储能系统的双馈风力发电系统直流电压控制策略
DC Voltage Control Strategy of Doubly-Fed Wind Power Generation System Based on Hybrid Energy Storage System
投稿时间:2020-07-04  修订日期:2020-12-16
DOI:
中文关键词:  双馈风力发电系统  混合储能系统  经验模态分解  故障穿越
英文关键词:dfig wind power generation system  hybrid energy storage system  Empirical Mode Decomposition  fault ride through
基金项目:国家自然科学基金(51607105)和湖北省自然科学基金(2016CFA097)第一作者:李咸善(1964—),男,汉族,湖北省安陆市,博士,教授。研究方向:微电网运行与控制、电力系统运行与控制、水电站仿真与控制等。Email:lixianshan@ctgu.edu.cn。*通信作者:叶 浪(1996—),男,汉族,湖北省大冶市,硕士研究生。研究方向:微电网运行与控制。E-mail:2458359424@qq.com。
        
作者单位
李咸善 三峡大学 电气与新能源学院学院
梯级水电站运行与控制湖北省重点实验室
叶浪 三峡大学 电气与新能源学院学院
梯级水电站运行与控制湖北省重点实验室
程杉 三峡大学 电气与新能源学院学院
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中文摘要:
      风电系统故障及其处理过程中,双馈电机双变流器间会产生不平衡有功功率,导致直流母线电压变化引发电容击穿。基于变流器和直流电容的模型提出混合储能装置中超级电容器和蓄电池的协调控制策略,依据经验模态分解法提取直流侧功率幅值变化的高、低频分量控制DC/DC变换器,进一步计算了混合储能装置的容量约束方法,并通过MATLAB搭建模型验证上述策略,仿真结果表明,该方法能减少故障期间电机直流侧不平衡功率,稳定直流侧电压,提高系统的高-低电压穿越能力。所提方法易于工程实现,可为风电机组配备故障全程穿越控制技术提供参考。
英文摘要:
      In the process of wind power system failure and its treatment, unbalanced active power will be generated between the two converters of doubly-fed motor, which will lead to dc bus voltage change and cause capacitor breakdown. First, a coordinated control strategy for supercapacitors and batteries in hybrid energy storage devices based on the converter and DC capacity model was proposed. Then high and low frequency components of the DC side power amplitude by the empirical mode decomposition method were extracted, and the capacity constraint method of hybrid energy storage device was calculated. Finally, the above strategy was verified by building a MATLAB model. The simulation results show that the proposed methods can reduce the unbalanced power on the DC side of the motor during the fault period, stabilize the DC bus voltage, improve the system’s high-low voltage ride through capability. The presented method is easy to realize in engineering and can provide reference for the fault control technology of wind turbine.
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