| 基于MATLAB/Simulink的准Z源光伏并网发电系统的仿真研究 |
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| 引用本文： | 李淑霞,叶 涛,罗伟杰,吴永浩.基于MATLAB/Simulink的准Z源光伏并网发电系统的仿真研究[J].防灾减灾工程学报,2016(2):51-55. |
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| 作者姓名： | 李淑霞 叶 涛 罗伟杰 吴永浩 |
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| 作者单位： | 国网宁夏电力公司中卫供电公司, 宁夏 中卫 755000;援 国网宁夏电力公司检修公司, 宁夏 银川 750011 |
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| 摘 要： | 为了解决光伏并网发电系统输入电压变化范围较大的问题,分析了准 Z 源光伏并网发电系统的工作原理;采用电容电压恒压控制策略,实现了准 Z 源光伏并网系统的闭环控制和最大功率点跟踪,并在 MATLAB/Simulink 环境下建立了准 Z 源光伏并网发电系统的仿真模型进行验证。仿真结果表明:准 Z 源逆变器能很好地适应输入电压变化大的光伏发电系统,采用的控制策略控制精度高,响应速度快。
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| 关 键 词： | 准 Z 源逆变器 电容电压恒压控制 光伏并网发电系统 |
Simulation research on quasi-Z-source grid-connected photovoltaic power generation system based on MATLAB/Simulink |
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| LI Shuxi,YE Tao,LUO Weijie,WU Yonghao.Simulation research on quasi-Z-source grid-connected photovoltaic power generation system based on MATLAB/Simulink[J].Journal of Disaster Prevent and Mitigation Eng,2016(2):51-55. |
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| Authors: | LI Shuxi YE Tao LUO Weijie WU Yonghao |
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| Institution: | Zhongwei Power Supply Filiale of State Grid Ningxia Power Co ,Zhongwei Ningxia 755000 ,China;Maintenance Filiale of State Grid Ningxia Power Co ,Yinchuan Ningxia 750011 ,China |
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| Abstract: | In order to solve the problem that the input voltage of grid-connected photovoltaic(PV)power generation system varies in a wide range,analyzes the working principle of the quasi Z sourcegrid-connected photovoltaic power generation system,adopts the constant voltage control capacitorstrategy,realizes the closed -loop control and maximum power point tracking (MPPT),andestablishes the simulation model to make verification in MATLAB/Simulink environment. Thesimulation result shows that the quasi Z source inverter can well adapt to PV power generationsystem which has a wide range input voltage,and the control strategy has high accuracy and fastresponse speed. |
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