A SPLL technique under unbalanced and seriously distorted grid voltage conditions

doi:10.1109/CCDC.2014.6852979

	A SPLL technique under unbalanced and seriously distorted grid voltage conditions
	Dang, Cun-Lu; Zhao, Xiao-Gang
	2014
会议名称	26th Chinese Control and Decision Conference, CCDC 2014
会议录名称	26th Chinese Control and Decision Conference, CCDC 2014
页码	4523-4528
会议日期	May 31, 2014 - June 2, 2014
会议地点	Changsha, China
出版者	IEEE Computer Society
摘要	The traditional SPLL can't accurately track the frequency and phase of the grid voltage under the condition of unbalanced and seriously distorted three-phase voltage. To solve this problem, the novel SPLL model based on Sequence Decoupled Resonant (SDR) combined with Second Order Generalized Integrator (SOGI) is proposed. By using the technic of SDR and SOGI, this design successfully achieves the separation of positive and negative sequence voltage, the extraction of fundamental voltage and a filting function. At the same time, the influence of the negative sequence component and the harmonic component can be effectively eliminated during the process of tracking the frequency and phase information. The simulation results show that the new SPLL can accurately track the frequency and phase of the grid voltage under the condition of unbalanced and seriously distorted three-phase voltage, which verify its validity and correctness. © 2014 IEEE.
关键词	Negative sequence Phase locked Secondorder generalized integrator (SOGI) Sequence Decoupled Resonant (SDR) Voltage distortions
DOI	10.1109/CCDC.2014.6852979
收录类别	EI
语种	英语
EI入藏号	20143218039831
EI主题词	Control engineering
来源库	Compendex
分类代码	731 Automatic Control Principles and Applications - 732 Control Devices
引用统计	无
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/117287
专题	电气工程与信息工程学院
作者单位	School of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Dang, Cun-Lu,Zhao, Xiao-Gang. A SPLL technique under unbalanced and seriously distorted grid voltage conditions[C]:IEEE Computer Society,2014:4523-4528.