电力系统保护与控制2017，Vol.45Issue(8)：132-137,6.DOI:10.7667/PSPC160658
一种双正弦幅值积分器解耦锁相环的设计
Design of decoupled double sinusoidal amplitude integrator phase-locked loop
摘要
Abstract
Under conditions of the distorted grid, the traditional phase-locked loop (PLL) cannot accurately extract fundamental positive sequence. For the problem, a decoupled double sinusoidal amplitude integrator phase-locked loop (DDSAI-PLL) is designed. DDSAI-PLL uses a crossing decoupling structure based on sine amplitude integrator (SAI), to achieve the separation of positive and negative sequence components. And the introduction of frequency adaptive module makes DDSAI-PLL have the phase frequency adaptive ability. The working principle of DDSAI-PLL is introduced, its mathematical model is established, and the key parameters are analyzed. Finally, DDSAI-PLL is realized by using DSP and is compared with the traditional synchronous reference frame phase locked loop (SRF-PLL) under the condition of voltage distortion. The results show that the proposed method is effective.关键词
正弦幅值积分器/交叉解耦/数学建模/锁相环/DSPKey words
sine amplitude integrator (SAI)/cross decoupling/mathematical modeling/phase-locked loop (PLL)/DSP引用本文复制引用
徐青青,陈莹,刘莉,张锦..一种双正弦幅值积分器解耦锁相环的设计[J].电力系统保护与控制,2017,45(8):132-137,6.基金项目
This work is supported by Natural Science Foundation of China Youth Fund of Jiangsu Province (No. BK20140586), and Natural Science Foundation for Universities of Jiangsu Education Department (No. 13KJD460007), Suqian Science and Technology Support Program (Industry) (No. H201516), and Scientific Research Fund of Suqian College (No. 2016KY27 and No. 2014KY08). 江苏省自然科学基金青年基金(BK20140586) （No. BK20140586）
江苏省教育厅高校自然科学基金(13KJD460007) （13KJD460007）
宿迁市科技支撑计划项目(工业)(H201516) （工业）
宿迁学院科研基金(2016KY27, 2014KY08) （2016KY27, 2014KY08）
