| 三相单级式光伏发电系统并网控制与仿真 |
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| 引用本文： | 刘岩,刘剑,宋颖巍,赵德伟,赵琳,宋卓然,徐菲,杨晓东,吴秀华. 三相单级式光伏发电系统并网控制与仿真[J]. 电测与仪表, 2014, 51(17) |
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| 作者姓名： | 刘岩 刘剑 宋颖巍 赵德伟 赵琳 宋卓然 徐菲 杨晓东 吴秀华 |
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| 作者单位： | 1. 国网辽宁省电力有限公司经济技术研究院,沈阳,110015
2. 沈阳农业大学,沈阳,110866 |
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| 摘 要： | 基于三相单级式光伏并网发电系统的电路拓扑结构,提出了一种快速逼近插值算法实现光伏发电的最大功率跟踪,光伏并网采用电压外环和电流内环双闭环控制,通过同步旋转坐标变换结合逆变器的控制,利用比例积分控制实现无功功率与有功功率的独立解耦控制。MATLAB系统仿真结果表明,该方法能够快速稳定地实现单位功率因数最大功率并网,降低并网系统成本,提高光伏并网的电能质量。
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| 关 键 词： | 光伏并网 最大功率跟踪(MPPT) 双闭环控制 电能质量 |
| 收稿时间： | 2014-04-16 |
| 修稿时间： | 2014-04-16 |
Research on the Grid-connected Control and Simulation of Three-phase Single-stage Photovoltaic (PV) Power System |
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| LIU Yan,LIU Jian,SONG Ying-wei,ZHAO De-wei,ZHAO Lin,SONG Zhuo-ran,XU Fei,YANG Xiao-dong and Wuxiuhua. Research on the Grid-connected Control and Simulation of Three-phase Single-stage Photovoltaic (PV) Power System[J]. Electrical Measurement & Instrumentation, 2014, 51(17) |
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| Authors: | LIU Yan LIU Jian SONG Ying-wei ZHAO De-wei ZHAO Lin SONG Zhuo-ran XU Fei YANG Xiao-dong Wuxiuhua |
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| Affiliation: | Institute of Economics and Technology, State Grid of Liaoning Electric Power,Institute of Economics and Technology, State Grid of Liaoning Electric Power,Institute of Economics and Technology, State Grid of Liaoning Electric Power,Institute of Economics and Technology, State Grid of Liaoning Electric Power,Institute of Economics and Technology, State Grid of Liaoning Electric Power,Institute of Economics and Technology, State Grid of Liaoning Electric Power,Shenyang Agricultural University,Shenyang Agricultural University,Shenyang Agriculture University |
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| Abstract: | According to the structure diagram of three-phase photovoltaic (PV) grid power generation system and double closed-loop grid-connection control strategy, a fast approximation interpolation algorithm to achieve maximum power tracking (maximum power point tracking, MPPT) function is proposed. The PV grid inverter circuit topology and control structure are analyzed, with the control structure using synchronous rotating coordinates based on PI control, the voltage loop and current inner ring double closed loop control, the active power and reactive power decoupling control is realized. The simulation results based on MATLAB has shown that this method can achieve flexible grid connection with unit power factor easily, and can reduce the cost and is easy to realize. |
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| Keywords: | photovoltaic grid -connected maximum power point tracking voltage and current double closed loop control power quality |
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