基于频率自适应改进型梳状滤波器的并网锁相环技术

发布时间：2018-05-05 12:55

本文选题：频率自适应 + 改进型梳状滤波器　；参考：《电力系统自动化》2017年20期

【摘要】：将梳状滤波器应用于并网锁相环技术中。针对梳状滤波器锁相环(CF-PLL)动态响应慢的缺点,引入校正环节,得到改进型梳状滤波器锁相环(ICF-PLL)。基于ICF-PLL的s域模型,提出了ICF-PLL调节器参数的整定方法。为提高ICF-PLL对电网频率变化的抗扰动能力,提出一种基于频率自适应改进型梳状滤波器的锁相环(FAICF-PLL)和其数字实现方案。仿真和实验结果表明,FAICF-PLL在电网电压发生频率脉动、相角变化、畸变谐波和不平衡跌落时均能准确地跟踪电网电压相位,具有良好的稳态和动态性能。
[Abstract]:The comb filter is applied to the grid phase-locked loop technology. In view of the slow dynamic response of the comb filter phase locked loop (CF-PLL), the correction link is introduced to get the modified comb filter phase locked loop (ICF-PLL). Based on the ICF-PLL s domain model, the tuning method of the parameters of the ICF-PLL regulator is proposed. In order to improve the change of the grid frequency of the ICF-PLL, the change of the frequency of the grid is improved. A frequency adaptive modified comb filter based phase locked loop (FAICF-PLL) and its digital realization scheme are proposed. The simulation and experimental results show that FAICF-PLL can accurately track the voltage phase of the grid when the voltage frequency fluctuation, phase angle change, distortion harmonic and unbalance fall of the grid voltage have a good steady state. And dynamic performance.

【作者单位】：电力传输与功率变换控制教育部重点实验室(上海交通大学);
【基金】：国家高技术研究发展计划(863计划)资助项目(2011AA050403) 高等学校博士学科点专项科研基金新教师类资助项目(20110073120034)~~
【分类号】：TM761

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