Parameter Design of Current Double Closed Loop for T-Type Three-Level Grid-Connected Inverter

被引：0

作者：

Sun T. ^{[1
]}

Shi M. ^{[1
]}

Xiao X. ^{[1
]}

He P. ^{[1
]}

Ji Y. ^{[1
]}

Yuan Z. ^{[2
]}

机构：

[1] Electric Power Research Institute, State Grid Jiangsu Electric Power Co., Ltd., Nanjing

[2] Zhenjiang Sanxin Power Supply Company, State Grid Jiangsu Electric Power Co., Ltd., Zhenjiang

来源：

Energy Engineering: Journal of the Association of Energy Engineering | 2023年 / 120卷 / 07期

关键词：

active damping; current double closed loop; T-type inverter;

D O I：

10.32604/ee.2023.026948

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

To reduce current harmonics caused by switching frequency, T-type grid-connected inverter topology with LCL filter is adopted. In view of the disadvantages of the slow response speed of the traditional current control and the failure to eliminate the influence of the LCL filter on the grid-connected current by using current PI control alone, a current double closed loop PI current tracking control is proposed. Through the theoretical analysis of the grid-connected inverter control principle, the grid-connected inverter control model is designed, and the transfer function model of each control link is deduced, and the current loop PI regulator is designed at last. The simulation results show that the control strategy is feasible. © 2023, Tech Science Press. All rights reserved.

引用

页码：1621 / 1636

页数：15

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