Angle of Current Waveform Based Protection for DC Distribution System

2019 ◽  
Author(s):  
Congbo Wang ◽  
Yi Qiang ◽  
Ke Jia ◽  
Tao Feng ◽  
Wei Li ◽  
...  
Keyword(s):  
Distribution System ◽  
Current Waveform ◽  
Dc Distribution

Transient Current Waveform Similarity Based Protection for Flexible DC Distribution System

2019 ◽  
Vol 66 (12) ◽  
pp. 9301-9311 ◽  
Author(s):  
Ke Jia ◽  
Congbo Wang ◽  
Tianshu Bi ◽  
Rui Zhu ◽  
Zhenwen Xuan
Keyword(s):  
Distribution System ◽  
Transient Current ◽  
Current Waveform ◽  
Dc Distribution ◽  
Waveform Similarity

Formulated Representation for Upper Limitation of Deliverable Power in Low-Voltage DC Distribution System

2011 ◽  
Vol 131 (4) ◽  
pp. 362-368 ◽  
Author(s):  
Yasunobu Yokomizu ◽  
Doaa Mokhtar Yehia ◽  
Daisuke Iioka ◽  
Toshiro Matsumura
Keyword(s):  
Distribution System ◽  
Low Voltage ◽  
Dc Distribution

scholarly journals Comparison of Grounding Modes of MMC-Based Flexible DC Distribution System

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 19696-19706
Author(s):  
Jinggang Yang ◽  
Xiaolong Xiao ◽  
Wei Su ◽  
Xinyao Si ◽  
Jiahao Zhang ◽  
...  
Keyword(s):  
Distribution System ◽  
Dc Distribution

scholarly journals A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1967
Author(s):  
Gaurav Kumar Roy ◽  
Marco Pau ◽  
Ferdinanda Ponci ◽  
Antonello Monti
Keyword(s):  
State Estimation ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Estimation Algorithm ◽  
The State ◽  
Second Step ◽  
Distribution Grid ◽  
Dc Distribution ◽  
Attractive Option ◽  
Distribution Grids

Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities.

Single-phase bidirectional AC-DC boost rectifier for DC distribution system

2013 ◽  
Author(s):  
Jee-Hoon Jung ◽  
Ho-Sung Kim ◽  
Myoung-Hyo Ryu ◽  
Jong-Hyun Kim ◽  
Ju-Won Baek
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Dc Distribution ◽  
Boost Rectifier

A positive Buck-Boost voltage balancer for DC distribution system

2014 ◽  
Vol 57 (3) ◽  
pp. 578-588
Author(s):  
Huan Zheng ◽  
DaoZhuo Jiang ◽  
Chi Zhang ◽  
LiXin Ye ◽  
Feng Xu ◽  
...  
Keyword(s):  
Distribution System ◽  
Dc Distribution
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