DC Voltage Droop Control Design for Multiterminal HVDC Systems Considering AC and DC Grid Dynamics

被引：93
|
作者：
Prieto-Araujo, Eduardo [1 ]
Egea-Alvarez, Agusti [1 ,2 ]
Fekriasl, Sajjad [3 ]
Gomis-Bellmunt, Oriol [1 ]
机构：
[1] Univ Politecn Cataluna, ETS Engn Ind Barcelona, Ctr Innovacio Tecnol Convertidors Estat & Acciona, Dept Engn Elect, Barcelona 08028, Spain
[2] Power Res Inst, Power Syst Dept China Elect, Beijing 100192, Peoples R China
[3] SGRT, Alstom Grid ST17 4LX, Stafford, England
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2016年 / 31卷 / 02期
关键词：
AC and dc grid interactions; droop control; HVDC; multiterminal; offshore wind power;
D O I：
10.1109/TPWRD.2015.2451531
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper focuses on the droop-based dc voltage control design for multiterminal VSC-HVDC grid systems, considering the ac and the dc system dynamics. The droop control design relies on detailed linearized models of the complete multiterminal grid, including the different system dynamics, such as the dc grid, the ac grid, the ac connection filters, and the converter inner controllers. Based on the derived linear models, classical and modern control techniques are applied to design the different controllers, including a multivariable frequency analysis to design the grid voltage droop control. In combination with the droop control, a dc oscillation damping scheme is proposed in order to improve system performance. The control design is validated through simulations of a three-terminal system.
引用
收藏
页码：575 / 585
页数：11
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