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基于模糊逻辑的参数自整定PI控制在有源滤波器中的应用 被引量：10

FuzzyPI control used in APF
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摘要 有源滤波器(APF)中误差信号的特性和PI控制时变性差限制了常规PI控制在APF中的应用。模糊逻辑控制具有理想的动态特性,对过程参数的变化不敏感的优点。对常规PI控制进行了改进,将误差信号各个频率下的正弦分量表示成相量形式,把传统PI控制中对每个采样点积分变为对相量进行叠加,构成了基于相量叠加的PI控制策略。并在此基础上将模糊逻辑控制与改进的PI控制相结合,用模糊控制策略控制比例、积分参数,实现了PI控制参数的自整定。设计了一种基于相量叠加的Fuzzy-PI控制器并将其应用于APF中,仿真实验验证了该方法的可行性。 The error signal characteristics of APF（Active Power Filter） and the object-sensitive trait of PI control limit the application of conventional PI control in APF. The fuzzy -logical control has ideal dynamic characteristics,which is insensitive to process parameter change. The conventional PI control is improved in following way. Different frequency sine components of error signal are represented by phasors and the integration of each sample point in conventional PI control is replaced by phasor splicing to construct PI control strategy,combined with which,fuzzy-logical control is applied to auto-regulate the proportional and integral parameters. A controller of Fuzzy-PI is designed and applied in APF. Simulations verify its feasibility.
作者 李琼林 刘会金 孙建军 陈宇
机构地区 武汉大学电气工程学院
出处 《电力自动化设备》 EI CSCD 北大核心 2005年第10期17-21,共5页 Electric Power Automation Equipment
关键词 有源滤波器 模糊逻辑 PI控制 参数自整定 APF fuzzy-logic PI control parameter auto-regulation
分类号 TM761 [电气工程—电力系统及自动化]
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参考文献7

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二级参考文献14

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共引文献179

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引证文献10

二级引证文献30

电力自动化设备
2005年 第10期

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