| 三相光伏并网发电系统的控制研究 |
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| 引用本文： | 鲍鹏,王奔,邹超,范冕.三相光伏并网发电系统的控制研究[J].华东电力,2008,36(12). |
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| 作者姓名： | 鲍鹏 王奔 邹超 范冕 |
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| 作者单位： | 1. 西南交通大学,电气工程学院,四川,成都,610031
2. 国网武汉高压研究院,湖北,武汉,430074 |
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| 摘 要： | 介绍了三相光伏并网发电系统的工作原理,阐述了扰动观测法(P&O)实现最大功率跟踪控制(MPPT)的基本思想.对并网逆变器在d-q坐标系下的数学模型,采用逆系统方法进行线性化解耦,构造出伪线性系统.然后,运用变结构控制方法,设计出这个伪线性系统的变结构控制律.仿真结果表明该方法能够有效地控制并网电流波形趋于正弦波,并跟踪系统电压的相位,同时使系统具有较好的稳定性.
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| 关 键 词： | 光伏并网系统 最大功率跟踪控制 逆系统方法 变结构控制 |
Control schemes for grid-connected three-phase photovoltaic power systems |
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| BAO Peng,WANG Ben,ZOU Chao,FAN Mian.Control schemes for grid-connected three-phase photovoltaic power systems[J].East China Electric Power,2008,36(12). |
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| Authors: | BAO Peng WANG Ben ZOU Chao FAN Mian |
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| Abstract: | The working principle of the three-phase photovoltaic system is presented,as well as the basic theory to realize maximum power point tracking(MPPT) by the perturb & observer algorithm(P&O).Based on the system model of the grid-connected inverter in the d-q-coordinate system,the inverse-system method was used to linearize and decouples the original system to build a pseudo-linear system.Then the variable structure control(VSC) theory was adopted to design the VSC laws of this pseudo-linear system.Simulation ... |
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| Keywords: | grid-connected photovoltaic power system maximum power point tracking(MPPT) inverse-system method variable structure control(VSC) |
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