A novel droop control strategy taking into account the available headroom for VSC-MTDC system

被引：0
|
作者：
Zhu, Ruike [1 ]
Li, Xingyuan [1 ]
Wu, Feng [2 ]
机构：
[1] School of Electrical and Info., Sichuan Univ., Chengdu,610065, China
[2] College of Energy and Electrical Eng., Hohai Univ., Nanjing,210098, China
来源：
Sichuan Daxue Xuebao (Gongcheng Kexue Ban)/Journal of Sichuan University (Engineering Science Edition) | 2015年 / 47卷 / 03期
关键词：
Power converters - Power control;
D O I：
10.15961/j.jsuese.2015.03.019
中图分类号：
学科分类号：
摘要：
The DC voltage droop control strategy of VSC-MTDC system can ensure proper distribution according to the converter ratings. However, it does not consider the actual loading condition. In order to solve this defect, a novel scheme for appropriate power sharing taking into account the available headroom of each converter station was proposed, and possible overloading was avoided. The margin droop control strategy was introduced in the active-power controller to ensure the stability of DC voltage. Transient simulations in PSCAD/EMTDC showed that the converters which are already operating close to the limits would try to share less burden of the loss to the extent of the other converters with higher spare capacity or headroom and thus the unbalanced power would be appropriate assigned. ©, 2015, Editorial Department of Journal of Sichuan University. All right reserved.
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页码：137 / 143
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