| 基于预测电流控制的光伏并网系统最大功率点跟踪算法 |
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| 引用本文： | 刘江涛,黄明,王海云,李保全,刘新伟. 基于预测电流控制的光伏并网系统最大功率点跟踪算法[J]. 航空动力学报, 2017, 44(5): 98-101, 127 |
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| 作者姓名： | 刘江涛 黄明 王海云 李保全 刘新伟 |
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| 作者单位： | 国网重庆市电力公司 武隆县供电分公司,重庆408500,国网重庆市电力公司 武隆县供电分公司,重庆408500,新疆大学 电气工程学院,新疆 乌鲁木齐830008,国网重庆市电力公司 武隆县供电分公司,重庆408500,国网重庆市电力公司 武隆县供电分公司,重庆408500 |
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| 基金项目： | 国家自然科学基金项目(51267017);教育部创新团队项目(IRT1285) |
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| 摘 要： | 针对光伏发电的突变性及昼发夜停特性提出一种新型的基于预测电流控制的光伏并网系统最大功率点跟踪(MPPT)算法。根据实际情况考虑光伏阵列的非线性特性,最大功率点周围光伏电压的振荡及逆变器、滤波器的设计等。为了确保系统采用控制算法的稳定性,MPPT的设计应运而生,在此基础上通过改进算法从光伏系统的电压与电流预测基准电流进而控制光伏并网系统。通过与传统的波动相关控制方法对比给出了仿真结果。仿真结果表明:在光照发生突变时,与传统的波动相关控制法相比,提出的改进算法的跟踪速度较之提升9.3%,并能够准确跟踪光伏并网系统最大功率点,且性能稳定可靠。
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| 关 键 词： | 光伏 并网 最大功率点跟踪 预测电流控制 |
Computed Current Control Method for Maximum Power PointTracking of GridConnected Photovoltaic System |
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| LIU Jiangtao,HUANG Ming,WANG Haiyun,LI Baoquan and LIU Xinwei. Computed Current Control Method for Maximum Power PointTracking of GridConnected Photovoltaic System[J]. Journal of Aerospace Power, 2017, 44(5): 98-101, 127 |
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| Authors: | LIU Jiangtao HUANG Ming WANG Haiyun LI Baoquan LIU Xinwei |
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| Affiliation: | Wulong Power Supply Branch, STATE GRID Chongqing Electric Power Company,Chongqing 408500, China,Wulong Power Supply Branch, STATE GRID Chongqing Electric Power Company,Chongqing 408500, China,College of Electrical Engineering, Xinjiang University, Urumqi 830008, China,Wulong Power Supply Branch, STATE GRID Chongqing Electric Power Company,Chongqing 408500, China and Wulong Power Supply Branch, STATE GRID Chongqing Electric Power Company,Chongqing 408500, China |
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| Abstract: | A new maximum power point tracking (MPPT) topology for a gridconnected PV system considering the sudden changes in environmeons was proposed. Considering the nonlinear characteristics of photovoltaic array according to actual condition, maximum power point of PV voltage oscillation around as well as the design of the inverter and filter and so on. In order to ensure the stability of the system adopts the control algorithm, the design of the maximum power point tracking arised at the historic moment, through the improved algorithm from photovoltaic system reference current and voltage and current predictive control photovoltaic (PV) gridconnected system. Based on compared with the ripple correlation control (RCC) method of the traditional and the simulation results were given. The simulation results showed that: Compared with the ripple correlation control (RCC) method when the solar radiation generate the sudden changes, the proposed improved algorithm of tracking speed increased 9.3%, the new algorithm not only could accurately track the maximum power point of photovoltaic (PV) gridconnected system, but also had the stable and reliable performance. |
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| Keywords: | photovoltaic (PV) gridconnected maximum power point tracking (MPPT) computed current control |
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