Modeling and Simulation of Single Phase Grid Voltage Phase-Locked Method Based on Unscented Transformation Kalman Filter

被引：0

作者：

Guo, Jian ^{[1
]}

Guan, Chenxi ^{[1
]}

Yan, Xuesong ^{[1
]}

Jiang, Chao ^{[1
]}

Khan, Roaidar ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mech & Elect, Harbin 150001, Peoples R China

来源：

PROCEEDINGS OF THE 32ND 2020 CHINESE CONTROL AND DECISION CONFERENCE (CCDC 2020) | 2020年

关键词：

Single Phase Grid Voltage; Phase Locked Loop; Unscented Transformation; Kalman Filter; SYNCHRONIZATION METHODS;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In order to meet the requirements of new energy power connected to grid, it is crucial to obtain the grid synchronization information as the control signal. The method of single phase grid voltage phase locked loop is studied in this paper. And the method of unscented transformation Kalman filter is used to obtain the synchronization information of grid. Based on the analysis of basic principles of unscented transformation Kalman filter, the transformation of UT transform was introduced to replace the nonlinear function. And according to the expected grid synchronization information, state space model of voltage signal is derived to improve the estimation precision of the state variables. Finally, the simulation results of different fault states are carried out to verify the effectiveness of the proposed method on tracking the synchronization information.

引用

页码：3119 / 3125

页数：7

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