| 模糊PI智能优化控制在Buck电路中的应用研究 |
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| 引用本文： | 冯成臣,杨旭红.模糊PI智能优化控制在Buck电路中的应用研究[J].电测与仪表,2015,52(5). |
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| 作者姓名： | 冯成臣 杨旭红 |
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| 作者单位： | 上海电力学院自动化学院,上海,200090 |
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| 基金项目： | 国家自然科学基金资助项目(61203224；61040013)；上海市电站自动化技术重点实验室开放课题(13DZ2273800)；上海市科委重点支撑项目(上海市科委地方院校能力建设项目)(12510500800)；上海市自然科学基金资助项目(13ZR1417800)；上海市教委科研创新项目 |
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| 摘 要： | 提出一种模糊PI智能控制方法,使得Buck电路在负荷波动时稳定输出,其中PI控制的初始值来源于直流变换器Buck电路的传递函数模型,根据该小信号模型优化PI控制及模糊变量的论域,当负载波动时,系统有稳定的输出电压、稳态误差小且有很好的鲁棒性,很好地应对了负载波动对该直流变换器输出电压的影响。最后以仿真实验证实了该方法较传统PI控制有更好的动态性能和稳定性,具有一定的实际价值。
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| 关 键 词： | Buck电路 PI控制器 模糊控制器 鲁棒性 |
| 收稿时间： | 2014/3/29 0:00:00 |
| 修稿时间： | 2014/3/29 0:00:00 |
Study of Intelligent Optimal Control of Fuzzy-PI Applying in Buck Circuit |
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| fengchengchen and yangxuhong.Study of Intelligent Optimal Control of Fuzzy-PI Applying in Buck Circuit[J].Electrical Measurement & Instrumentation,2015,52(5). |
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| Authors: | fengchengchen and yangxuhong |
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| Affiliation: | Shanghai University of Electric Power,Shanghai University of Electric Power |
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| Abstract: | A new fuzzy-PI control method was proposed to deal with load fluctuation in in Buck circuit,in which the initial value of PI controller came from the transfer function of the Buck.Also the parameters of PI control and fuzzy variable universes were optimized in the same way.When there is a load fluctuation,the output voltage could stay the same almost with tiny steady-state error and good robust,which make great significance to the converter.Then the method was proved to be correct by its simulation. |
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| Keywords: | Buck circuit PI controller fuzzy controller robustness |
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