| 基于Cuk变换器的永磁直驱风电系统MPPT策略 |
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| 引用本文： | 惠晶,王新新.基于Cuk变换器的永磁直驱风电系统MPPT策略[J].江南大学学报(自然科学版),2011,10(4). |
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| 作者姓名： | 惠晶 王新新 |
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| 作者单位： | 江南大学工业节能与控制技术无锡重点实验室,江苏无锡,214122 |
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| 基金项目： | 无锡市科技发展计划项目(CMES0915) |
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| 摘 要： | 针对永磁直驱风电系统,采用了一种基于Cuk变换器占空比控制的新型最大功率点跟踪(MPPT)策略,详细分析了风力机的输出功率和Cuk变换器占空比之间的关系,结合改进的最优梯度规则实现了最大功率跟踪,采用Matlab/Simulink建模仿真。结果表明MPPT策略能够使系统快速可靠地实现最大功率跟踪,提高了风能利用率,验证了其正确性和有效性。
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| 关 键 词： | 风力发电 最大功率点跟踪 Cuk变换器 占空比 |
MPPT Strategy of Direct-Drive Wind Power System Based on Cuk Converter |
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| HUI Jing,WANG Xin-xin.MPPT Strategy of Direct-Drive Wind Power System Based on Cuk Converter[J].Journal of Southern Yangtze University:Natural Science Edition,2011,10(4). |
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| Authors: | HUI Jing WANG Xin-xin |
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| Institution: | HUI Jing,WANG Xin-xin (Wuxi Key Lab of Industrial Energy Conservation and Control Technology,Jiangnan University,Wuxi 214122,China) |
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| Abstract: | For the permanent magnet direct-drive wind power system,a novel MPPT strategy based on duty cycle control of Cuk converter is adopted.Relationship between output power of the wind turbine and duty cycle of the Cuk converter is analyzed.Combined with the optimal gradient rule,the MPPT is realized.Through Matlab/simulink modeling and simulation,the results show that this MPPT strategy can make the system quickly and reliably achieve maximum power tracking,improve the wind energy utilization and thus verify it... |
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| Keywords: | wind power generation MPPT Cuk converter duty cycle |
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