电气技术  2014, Vol. 15 Issue (06): 35-38    DOI:
研究与开发 |
单相光伏并网逆变器群控供电系统的建模与控制
陈建伟
许继变压器有限公司,河南 许昌 461000
Modeling and Control of Single Phase Photovoltaic Grid-connected Inverters Control System
Chen Jianwei
Xuji Transformer Corporation Ltd., Xuchang, He’nan 461000
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摘要 分析了光伏并网逆变器群控系统中环流产生的机理,并导出了影响环流数值的因素。通过进一步分析找出逆变器输出的功率与环流之间的关系。在单台并网逆变器控制方法之上,设计出并网逆变器群控系统的环流抑制的方法,并对环流抑制方法的稳定性作了进一步分析。最后给出了并联控制系统仿真输出电流波形以及样机实验波形,并对理论分析、仿真波形以及实验结果进行比较。从仿真波形以及实验结果来看,所采取的控制措施是完全正确的。
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陈建伟
关键词 逆变器环流抑制群控系统平均电流    
Abstract:Generating loop current mechanism of photovoltaic grid-connected inverters based on Group control system is analyzed and influent factors of loop current are also derived。Relationship between output power of the inverter and surround current is found by the further analysis. On the base of single grid-connected inverter control method,control system of circulating current restraining method with group control system. Stability of circulation inhibition method is analyzed further. Finally, the control system simulation result and experimental waveforms are given and the theoretical analysis, simulation and experimental results are compared。From the simulation and experiment results, the realizing method and control strategy are entirely correct。
Key wordsinverter    loop current suppression    group control system    average current   
     出版日期: 2014-06-11
作者简介: 陈建伟(1977-),男,安徽砀山人,工程师,1999年毕业于合肥工业大学电气工程系,现从事电气产品的设计和研发工作。
引用本文:   
陈建伟. 单相光伏并网逆变器群控供电系统的建模与控制[J]. 电气技术, 2014, 15(06): 35-38. Chen Jianwei. Modeling and Control of Single Phase Photovoltaic Grid-connected Inverters Control System. Electrical Engineering, 2014, 15(06): 35-38.
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https://dqjs.cesmedia.cn/CN/Y2014/V15/I06/35