VSG control based on adaptive Terminal sliding-mode control method

被引：0
|
作者：
Yan B. [1 ]
Wang B. [1 ]
机构：
[1] School of Automation, Nanjing University of Science and Technology, Nanjing
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2018年 / 38卷 / 10期
关键词：
Grid-connected inverter; Robustness; Stability; Terminal sliding-mode control; Virtual synchronous generator;
D O I：
10.16081/j.issn.1006-6047.2018.10.022
中图分类号：
学科分类号：
摘要：
The low inertia and under-damping characteristics of the inverter-dominated distributed generation unit may impact the power system stability. Using the fourth-order synchronous generator model with the excitation and valve comprehensive control, a virtual synchronous generator control scheme based on adaptive Terminal sliding-mode control is designed. Two nonsingular Terminal sliding-mode functions are constructed based on the two input variables of the system. The convergence of the error is fast owing to the nonlinear Terminal sliding-mode function. As a consequence, the control effectiveness of the designed controller can be ensured. The simulative results show that the proposed control strategy can provide sufficient inertia and damping to guarantee the robustness of system in the presence of uncertain parameters and external disturbances, which can further suppress the system oscillation and improve the power system stability. © 2018, Electric Power Automation Equipment Press. All right reserved.
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收藏
页码：140 / 146
页数：6
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