电测与仪表2016，Vol.53Issue(13)：84-89,6.
基于二阶广义积分器的单相并网系统锁相技术的研究
Research on SOGI for phase lock technique of the single-phase grid-connected system
侯立健 1朱长青 1陈雅 2严雪飞1
作者信息
- 1. 军械工程学院，石家庄050003
- 2. 天津大学，天津300073
- 折叠
摘要
Abstract
For the grid voltage is usually affected by disturbance and harmonic, so in the synchronous application of grid-connected converter, there is a phase difference between grid-connected current and grid voltage, which will have impact and pollution to the power grid.The practical experience shows that some phase locked loop(PLL) based quadrature signal generator( QSG) has better performance.This paper adopts the second-order general integrator( SO-GI) that is improved, and frequency of SOGI automatically tracks the input frequency through a simple control loop instead of trigonometric function.Finally, this scheme constructs new-style structure of the frequency locked loop with PLL module.This scheme is easy to design and implement, simulation results show its excellent performance, and the frequency and angle can be detected rapidly and do not contain a steady oscillation, the feasibility and the superiority of the scheme are verified.关键词
并网变换器/二阶广义积分器/锁频环Key words
grid-connected converter/second-order general integrator/frequency locked loop分类
信息技术与安全科学引用本文复制引用
侯立健,朱长青,陈雅,严雪飞..基于二阶广义积分器的单相并网系统锁相技术的研究[J].电测与仪表,2016,53(13):84-89,6.
