@inproceedings{a36ef21ccfcf4f1bbe592d4c346bfd3b,
title = "A two-layer active power control scheme in a DC grid for contingency situation",
abstract = "A two-stage active power control scheme by droop-controlled DC grids for energy internet system when one converter is out of operation is proposed in this paper. In the first layer, the DC-link voltage of each DC terminal is analytically deduced according to the analytical power flow model in a meshed DC grid to make sure power support during the contingency situation. However, in the second layer, it can alter the concerned control parameters including the power set points and DC droops based on the DC-link voltage calculated in the former layer. The proposed hierarchical scheme can fast track the power change during the contingency situation such as loss of one converter. A typical four-terminal DC grid was modeled and verified in the DIgSILENT/PowerFactory to illustrate the two-laryer scheme.",
keywords = "Contingency situation, DC droop, Energy Internet, power flow",
author = "Yujun Li and Zhao Xu",
year = "2017",
month = jun,
day = "28",
doi = "10.1109/EI2.2017.8245373",
language = "English",
series = "2017 IEEE Conference on Energy Internet and Energy System Integration, EI2 2017 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1--4",
booktitle = "2017 IEEE Conference on Energy Internet and Energy System Integration, EI2 2017 - Proceedings",
note = "2017 IEEE Conference on Energy Internet and Energy System Integration, EI2 2017 ; Conference date: 27-11-2017 Through 28-11-2017",
}