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| 永磁同步风力发电机并网运行研究 | |
| 引用本文： | 章心因,胡敏强,陈小虎,吴在军.永磁同步风力发电机并网运行研究[J].江苏电机工程,2008,27(5). |
| 作者姓名： | 章心因 胡敏强 陈小虎 吴在军 |
| 作者单位： | 1. 东南大学电气工程学院,江苏,南京,210096南京工程学院,江苏,南京,211167 2. 东南大学电气工程学院,江苏,南京,210096 3. 南京工程学院,江苏,南京,211167 |
| 摘 要： | 首先比较了2种主流变速恒频风力发电系统,再对永磁同步发电机系统的并网电路进行了分析。针对不控整流器加并网PWM变换器这种结构,提出采用直流母线电压控制同时实现并网与最大风能跟踪。分析了并网PWM变换器通过功率解耦控制直流母线电压的原理,提出采用直流母线电压作为参数的直接并网方法。分析了直流母线电压与发电机转速间的关系,提出采用直流电压变步长扰动替代转速定步长扰动实现最大风能跟踪。进行了详细的仿真,证明提出的控制策略简单可行,具有实用价值。 |
| 关 键 词： | 风力发电 变速恒频 永磁同步发电机 并网 最大风能跟踪 |
Research on Permanent Magnet Synchronous Wind-power Generation Grid-connection Running |
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| ZHANG Xin-yin,HU Min-qiang,CHEN Xiao-hu,WU Zai-jun.Research on Permanent Magnet Synchronous Wind-power Generation Grid-connection Running[J].Jiangsu Electrical Engineering,2008,27(5). | |
| Authors: | ZHANG Xin-yin HU Min-qiang CHEN Xiao-hu WU Zai-jun |
| Affiliation: | 1(1.Southeast University; Nanjing 210096; China; 2.School of Electric Power Engineering; Nanjing 211167; China); |
| Abstract: | The two prevalent VSCF(Variable-speed Constant-frequency) wind-power generation systems were compared firstly,and the grid-connected circuit of PMSWG(Permanent Magnet Synchronous Wind Generator) was analyzed in succession.Aim at the structure of non-controllable rectifier and grid-connected PWM convector,the method of realizing grid-connected and maximal wind energy tracking by DC bus voltage control was proposed.The theory of controlling DC bus voltage by PWM convector decoupling power was analyzed,and the direct grid-connected method by adopting the DC bus voltage as parameter was proposed.The relationship of DC bus voltage and rotational speed was analyzed,then DC voltage variable step disturbance was proposed to replace rotational speed fix step disturbance to realize the maximal wind-power tracking.Simulation result showed the proposed control strategy was simple,effective and practical. |
| Keywords: | wind-power generation VSCF PMSWG grid-connection maximal wind-power tracking |
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