Bilateral Inertia and Damping Emulation Control Scheme for VSC-HVDC Transmission Systems

被引：0
|
作者：
Shen Z. [1 ]
Zhu J. [1 ]
Li B. [1 ]
Jia H. [1 ]
Wang C. [1 ]
机构：
[1] School of Electrical and Information Engineering, Tianjin University, Tianjin
来源：
Gaodianya Jishu/High Voltage Engineering | 2021年 / 47卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Bilateral inertia and damping; Damping emulation; Frequency response; Inertia emulation; VSC-HVDC system;
D O I：
10.13336/j.1003-6520.hve.20211089
中图分类号：
学科分类号：
摘要：
With the increasing penetrations of power-electronic-interfaced renewable power generation in the power system, the inertia of the power system continues to decrease. As a result, the frequency support and oscillation suppression capabilities of the power system continue to decline. To solve this problem, we propose a bilateral inertia and damping emulation (BIDE) control scheme for voltage source converter based high voltage DC transmission systems (VSC-HVDC), enabling the inertial and damping responses to the both sides of VSC-HVDC interconnected AC grids. Firstly, the modeling and control of the VSC-HVSC and its communication system delay are briefly introduced. Then, a BIDE control scheme for a VSC-HVDC system is theoretically derived. In addition, a small signal model of the VSC-HVDC system is constructed and the stability analysis of the system is carried out. Finally, a back-to-back VSC-HVDC interconnected two-bus AC system model is established on the MATLAB/Simulink environment, and the proposed BIDE scheme is analyzed and verified under the events of load changes and three-phase fault. The results show that, under the proposed BIDE scheme, the VSC-HVDC system can simultaneously provide the bilateral inertial and damping power to the asynchronous AC systems interconnected at both ends, which can effectively improve the system frequency stability and enhance the oscillation suppression capability. © 2021, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：3505 / 3518
页数：13
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