A medium voltage hybrid AC/DC distribution network and its economic evaluation

2016 ◽  
Author(s):  
Lu Zhang Lu Zhang ◽  
Wei Tang Wei Tang ◽  
Jun Liang Jun Liang ◽  
Gen Li Gen Li ◽  
Yongxiang Cai Yongxiang Cai ◽  
...  
Keyword(s):  
Economic Evaluation ◽  
Distribution Network ◽  
Medium Voltage ◽  
Dc Distribution

scholarly journals Modelling and control of a VSC medium-voltage DC distribution network with DFIG wind farm

2017 ◽  
Vol 2017 (13) ◽  
pp. 2502-2507 ◽  
Author(s):  
Simiyu Patrobers ◽  
Xin Ai ◽  
Bitew Girmaw Teshager ◽  
Wang Kunyu
Keyword(s):  
Wind Farm ◽  
Distribution Network ◽  
Medium Voltage ◽  
Dc Distribution ◽  
And Control ◽  
Medium Voltage Dc

scholarly journals The LCOE-Indicator-Based Comprehensive Economic Comparison between AC and DC Power Distribution Networks with High Penetration of Renewable Energy

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4621 ◽  
Author(s):  
Yi Liu ◽  
Zhanqing Yu ◽  
Haibo Li ◽  
Rong Zeng
Keyword(s):  
Renewable Energy ◽  
Economic Evaluation ◽  
Power Loss ◽  
Distribution Network ◽  
Distribution Networks ◽  
Planning Stage ◽  
Stage Of Development ◽  
Dc Distribution ◽  
High Penetration ◽  
Economic Comparison

DC distribution networks are operationally economical from the perspective of renewable energy penetration due to the reduction of power loss from the simplified power conversion structure. However, the initial investment cost of a DC network is high because DC technology is in the early stage of development. So, selecting AC or DC technology becomes an important issue in the planning stage of a distribution network, where a comprehensive quantitative economic comparison between AC and DC distribution networks is necessary. To compare the economy between AC and DC distribution networks with high penetration of a renewable energy scenario, this paper introduces a comprehensive economic evaluation method. In this study, first, typical system models for AC and DC distribution networks were proposed as the foundation of the research. Then, a levelized cost of energy (LCOE)-indicator-based comprehensive economic evaluation model was established, where the operation cost was classified into power loss cost, reliability loss cost, and operational cost. A time sequential simulation model was applied to calculate the power loss. The simulation results showed that a DC distribution network has higher initial investment, operation, and maintenance costs than an AC distribution network, but the loss cost is far lower than an AC distribution network. A sensitivity analysis showed that the equipment cost and proportion of renewable energy are two of the most important factors that affect the economics of DC distribution networks at present.

Multi-terminal Medium Voltage DC Distribution Network Large-signal Stability Analysis

2020 ◽  
Vol 15 (5) ◽  
pp. 2099-2110
Author(s):  
Patrobers Simiyu ◽  
Ai Xin ◽  
Niasse Mouhammed ◽  
Wang Kunyu ◽  
Joseph Gurti
Keyword(s):  
Stability Analysis ◽  
Distribution Network ◽  
Large Signal ◽  
Medium Voltage ◽  
Signal Stability ◽  
Dc Distribution ◽  
Medium Voltage Dc
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