Dynamic reduction of large-scale AC/DC power systems via retaining the trunk network

2012 ◽  
Vol 43 (1) ◽  
pp. 1332-1339 ◽  
Author(s):  
Hua Weng ◽  
Zheng Xu
Keyword(s):  
Power Systems ◽  
Large Scale ◽  
Dc Power ◽  
Trunk Network ◽  
Dc Power Systems

Hierarchical Structural Model of AC/DC Power Systems

2013 ◽  
Vol 313-314 ◽  
pp. 821-827
Author(s):  
Kai Feng Zhang ◽  
Hai Ming Zhou
Keyword(s):  
Power Systems ◽  
Decomposition Method ◽  
Large Scale ◽  
Structural Model ◽  
Modeling Method ◽  
Hierarchical Decomposition ◽  
New Model ◽  
Dc Power ◽  
The Difference ◽  
Dc Power Systems

The hierarchical decomposition and modeling method of large-scale power systems proposed previously is expanded to be suitable for AC/DC power systems in this paper. In the new model of AC/DC systems, DC systems will have the same position as AC systems. The components in AC/DC power systems are classified into three categories, namely conversion components, DC components and AC components. By analyzing the difference between DC interface and AC interface, the unified structural model suitable for any kind of component in AC/DC systems is built. Then, the hierarchical structural model is derived based on the hierarchical decomposition method. The main characteristics of the proposed AC/DC model are the same as that of previous AC model.

scholarly journals An Efficient Controlled Islanding Strategy for Large-Scale AC/DC Power Systems

Energies ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 1483 ◽  
Author(s):  
Changcheng Song ◽  
Xiaodong Chu ◽  
Linlin Ma ◽  
Xiaobo Wang ◽  
Xin Li ◽  
...  
Keyword(s):  
Power Systems ◽  
Large Scale ◽  
Controlled Islanding ◽  
Dc Power ◽  
Dc Power Systems

Novel of Isolated Multi-Port Converter for Integrating Complex DC Power Systems

2014 ◽  
Vol 134 (10) ◽  
pp. 844-852 ◽  
Author(s):  
Masanori Ishigaki ◽  
Kenichi Ito ◽  
Naoki Yanagisawa ◽  
Shuji Tomura ◽  
Takaji Umeno
Keyword(s):  
Power Systems ◽  
Dc Power ◽  
Dc Power Systems

scholarly journals A Full-Newton AC-DC Power Flow Methodology for HVDC Multi-Terminal Systems and Generic DC Network Representation

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1658
Author(s):  
Leandro Almeida Vasconcelos ◽  
João Alberto Passos Filho ◽  
André Luis Marques Marcato ◽  
Giovani Santiago Junqueira
Keyword(s):  
Power Systems ◽  
Direct Current ◽  
Power Flow ◽  
Large Scale ◽  
Flow Problem ◽  
Control Strategies ◽  
Problem Formulation ◽  
Expansion Planning ◽  
Dc Power ◽  
Power Flow Problem

The use of Direct Current (DC) transmission links in power systems is increasing continuously. Thus, it is important to develop new techniques to model the inclusion of these devices in network analysis, in order to allow studies of the operation and expansion planning of large-scale electric power systems. In this context, the main objective of this paper is to present a new methodology for a simultaneous AC-DC power flow for a multi-terminal High Voltage Direct Current (HVDC) system with a generic representation of the DC network. The proposed methodology is based on a full Newton formulation for solving the AC-DC power flow problem. Equations representing the converters and steady-state control strategies are included in a power flow problem formulation, resulting in an expanded Jacobian matrix of the Newton method. Some results are presented based on HVDC test systems to confirm the effectiveness of the proposed approach.

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