| 基于滤波器前置的三相软件锁相环设计 |
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| 引用本文： | 刘启德,王海云,王浩成,徐永. 基于滤波器前置的三相软件锁相环设计[J]. 电力自动化设备, 2021, 41(7): 124-129,151. DOI: 10.16081/j.epae.202104010 |
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| 作者姓名： | 刘启德 王海云 王浩成 徐永 |
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| 作者单位： | 新疆大学 电气工程学院 教育部可再生能源发电与并网控制工程技术研究中心,新疆 乌鲁木齐 830047;伊犁师范大学 电子与信息工程学院,新疆 伊宁 835000 |
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| 基金项目： | 自治区重点研发计划(2020B02001)；自治区高校重大项目(XJEDU2017I002) |
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| 摘 要： | 针对传统锁相环在电压不平衡及畸变时锁相误差大、动态响应速度慢的问题,根据软件锁相环(SPLL)的原理提出一种滑动滤波器(MAF)前置锁相环,并通过一种快速不平衡分量抑制及相位延迟补偿的方法来改善MAF性能,有效提高了锁相环的动态响应速度和锁相精度.通过MATLAB/Simulink仿真平台及TMS320F28335数字...
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| 关 键 词： | 软件锁相环 滑动滤波器 相位延时补偿 电压畸变 数字信号处理器 |
Design of three-phase software phase locked loop based on prefilter |
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| LIU Qide,WANG Haiyun,WANG Haocheng,XU Yong. Design of three-phase software phase locked loop based on prefilter[J]. Electric Power Automation Equipment, 2021, 41(7): 124-129,151. DOI: 10.16081/j.epae.202104010 |
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| Authors: | LIU Qide WANG Haiyun WANG Haocheng XU Yong |
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| Affiliation: | Research Center of Renewable Energy Generation and Grid-connected Control Engineering Technology, Ministry of Education, College of Electrical Engineering, Xinjiang University, Urumqi 830047, China;College of Electronic and Information Engineering, Yili Normal University, Yining 835000, China |
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| Abstract: | In order to solve the problems of large phase-locked error and slow dynamic response of traditional SPLL(Software Phase Locked Loop) under unbalanced and distorted voltage, a prefilter SPLL based on MAF(Moving Average Filter) is proposed, which is based on the principle of traditional SPLL. A fast unbalanced component suppression and phase delay compensation method is applied to improve the performance of MAF, which effectively improves the dynamic response speed and phase-locked accuracy of the proposed SPLL. Through MATLAB/Simulink simulation platform and TMS320F28335 DSP(Digital Signal Processor) chip, the control strategy of the proposed SPLL is verified under the condition of three-phase voltage unbalance and voltage distortion. The results show that the SPLL has small phase-locked error, fast dynamic response speed and high stability. |
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| Keywords: | software phase locked loop moving average filter phase delay compensation voltage distortion digital signal processor |
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