| 引用本文: | 杨洪明,陈博文,王懂,尹邦哲,周任军.局部阴影遮挡下太阳能电池-超级电容器件阵列建模及其缺失电流协同补偿方法[J].电力自动化设备,2021,41(6): |
| YANG Hongming,CHEN Bowen,WANG Dong,YIN Bangzhe,ZHOU Renjun.Modeling of solar cell-supercapacitor device array under local shadow and its cooperative compensation method of missing current[J].Electric Power Automation Equipment,2021,41(6): |
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| 摘要: |
| 在局部阴影条件下，太阳能电池-超级电容器件(SCSD)阵列中被遮挡器件与未被遮挡器件的功率输出特性不一致，导致SCSD阵列输出功率曲线存在多峰值，需要建立局部阴影遮挡下SCSD阵列的数学模型，并解决局部阴影导致的功率多峰值问题。为此，建立了正常均匀光照、局部轻度阴影遮挡、局部重度阴影遮挡下SCSD阵列的数学模型，详细刻画了不同阴影遮挡条件下SCSD阵列的输出特性；在此基础上，提出了控制SCSD阵列中超级电容充放电以补偿阴影遮挡器件缺失电流的方法。MATLAB仿真和实验室实验结果表明：通过分段函数形式能准确描述局部阴影遮挡下SCSD阵列的数学模型；所提超级电容电流补偿方法不但能使局部阴影遮挡下SCSD阵列的输出功率恢复单峰值，而且有效提高了局部阴影遮挡下SCSD阵列的总输出功率。 |
| 关键词: 太阳能电池-超级电容器件 局部阴影遮挡 功率多峰值 缺失电流 充放电补偿 |
| DOI：10.16081/j.epae.202105013 |
| 分类号:TM615 |
| 基金项目:国家自然科学基金资助项目(71931003,72061147004)；湖南省科技项目(2019WK2011,2019GK5015,2018GK4002,2019CT5001, kq1907086,2020GK1014)；泛在电力物联网湖南省重点实验室项目(2019TP1016) |
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| Modeling of solar cell-supercapacitor device array under local shadow and its cooperative compensation method of missing current |
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YANG Hongming1, CHEN Bowen1, WANG Dong2, YIN Bangzhe1, ZHOU Renjun1
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1.International Joint Laboratory of Ministry of Education for Operation and Planning of Energy Internet based on Distributed Photovoltaic Storage Energy, Hunan Provincial Engineering Research Center for Electric Transportation and Smart Distribution Network, School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410114, China;2.Suzhou Power Supply Company, State Grid Anhui Electric Power Co.,Ltd.,Suzhou 234000, China
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| Abstract: |
| Under the local shadow condition, the power output characteristics of occluded devices and unoccluded devices in the SCSD(Solar Cell-Supercapacitor Device) array are inconsistent, which leads to the existence of multiple peak values in the output power curve of SCSD array. It is necessary to establish a mathematical model of SCSD array under local shadow and solve the problem of multiple power peaks caused by local shadow. Therefore, the mathematical models of SCSD array under normal uniform illumination, local light shadow and local severe shadow are established, and the output characteristics of SCSD array under different shadow conditions are described in detail. On this basis, a method is proposed to control the charging and discharging of supercapacitor in SCSD array to compensate the missing current of occluded devices. MATLAB simulative results and laboratory experimental results show that the mathematical model of SCSD array under local shadow can be accurately described by piecewise function. The proposed supercapacitor current compensation method can not only restore the output power of SCSD array under local shadow to single peak value, but also effectively improve the total output power of SCSD array. |
| Key words: SCSD local shadow multiple power peak values missing current charging and discharging compensation |
