| 基于非线性ESO的风电并网逆变器改进自抗扰控制 |
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| 引用本文： | 周雪松,陈昱龙,马幼捷,崔阳阳,孙小桐,葛建鹏.基于非线性ESO的风电并网逆变器改进自抗扰控制[J].电气传动,2022,52(5):47-53,61. |
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| 作者姓名： | 周雪松 陈昱龙 马幼捷 崔阳阳 孙小桐 葛建鹏 |
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| 作者单位： | 天津理工大学电气电子工程学院,天津300384;天津理工大学天津市复杂系统控制理论及应用重点实验室,天津300384 |
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| 基金项目： | 国家自然科学基金（51877152）；;天津自然科学基金（18JCZDJC97300）； |
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| 摘 要： | 针对永磁直驱风电系统并网逆变器中传统双闭环PI控制策略抗扰性能和控制精度不足的问题,提出一种基于非线性扩张状态观测器(NLESO)的改进型自抗扰控制(ADRC)技术用以提高直流母线电压的控制性能.通过将线性扩张状态观测器(LESO)中的误差增益矩阵变为随时间变化的非线性函数对传统LADRC进行了改进,提高了LESO的动...
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| 关 键 词： | 并网逆变器 非线性自抗扰控制 扰动观测性能 抗扰性能 |
Improved Active Disturbance Rejection Control of Wind Power Grid- connected Inverter Based on Nonlinear ESO |
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| ZHOU Xuesong,CHEN Yulong,MA Youjie,CUI Yangyang,SUN Xiaotong,GE Jianpeng.Improved Active Disturbance Rejection Control of Wind Power Grid- connected Inverter Based on Nonlinear ESO[J].Electric Drive,2022,52(5):47-53,61. |
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| Authors: | ZHOU Xuesong CHEN Yulong MA Youjie CUI Yangyang SUN Xiaotong GE Jianpeng |
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| Affiliation: | (College of Electrical and Electronic Engineering,Tianjin University of Technology,Tianjin 300384,China;Tianjin Key Laboratory for Control Theory and Application in Complicated Systems,Tianjin University of Technology,Tianjin 300384,China) |
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| Abstract: | Aiming at the insufficient problem of anti-disturbance performance and control accuracy of the traditional double closed-loop PI control strategy in the grid-connected inverter of the magnetic direct drive wind power system,an improved active disturbance rejection controller(ADRC)technology based on the nonlinear extened state observer(NLESO)was proposed to enhance the control performance of the DC bus voltage. The traditional LADRC was improved by changing the error gain matrix in the linear extended state observer(LESO)into a non-linear function that varies with time,and the dynamic disturbance observation performance of LESO was also improved. The compensation inhibition ability against lumped disturbances was enhanced,and its stability was proved. Finally,through simulation and comparative analysis for the grid-connected point voltage and the DC voltage waveforms of the inverter under the control of the improved NLADRC and the traditional LADRC,the correctness and feasibility of the improved NLADRC were verified. |
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| Keywords: | grid-connected inverter nonlinear active disturbance rejection controller(NLADRC) disturbance observation performance immunity performance |
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