Fault detection for offshore wind farm connected to onshore grid via voltage source converter-high voltage direct current

2015 ◽  
Vol 9 (16) ◽  
pp. 2544-2554 ◽  
Author(s):  
Rehana Perveen ◽  
Soumya R. Mohanty ◽  
Nand Kishor
Keyword(s):  
Fault Detection ◽  
High Voltage ◽  
Direct Current ◽  
Wind Farm ◽  
Offshore Wind ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Offshore Wind Farm ◽  
High Voltage Direct Current

scholarly journals Fault Characteristics and Control Strategies of Multiterminal High Voltage Direct Current Transmission Based on Modular Multilevel Converter

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Fei Chang ◽  
Zhongping Yang ◽  
Yi Wang ◽  
Fei Lin ◽  
Shihui Liu
Keyword(s):  
High Voltage ◽  
Direct Current ◽  
Wind Farm ◽  
Control Strategies ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Modular Multilevel Converter ◽  
Multilevel Converter ◽  
High Voltage Direct Current ◽  
Current Transmission

The modular multilevel converter (MMC) is an emerging voltage source converter topology suitable for multiterminal high voltage direct current transmission based on modular multilevel converter (MMC-MTDC). This paper presents fault characteristics of MMC-MTDC including submodule fault, DC line fault, and fault ride-through of wind farm integration. Meanwhile, the corresponding protection strategies are proposed. The correctness and effectiveness of the control strategies are verified by establishing a three-terminal MMC-MTDC system under the PSCAD/EMTDC electromagnetic transient simulation environment.

scholarly journals Heuristic remedial actions in the reliability assessment of high voltage direct current networks

2021 ◽  
Vol 11 (6) ◽  
pp. 4622
Author(s):  
Mario A. Rios ◽  
Maria F. Perez
Keyword(s):  
High Voltage ◽  
Direct Current ◽  
Reliability Assessment ◽  
Test System ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Dc System ◽  
High Voltage Direct Current ◽  
Operating Limits ◽  
Remedial Actions

<p>Planning of high voltage direct current (HVDC) grids requires inclusion of reliability assessment of alternatives under study. This paper proposes a methodology to evaluate the adequacy of voltage source converter/VSC-HVDC networks. The methodology analyses the performance of the system using N-1 and N-2 contingencies in order to detect weaknesses in the DC network and evaluates two types of remedial actions to keep the entire system under the acceptable operating limits. The remedial actions are applied when a violation of these limits on the DC system occurs; those include topology changes in the network and adjustments of power settings of VSC converter stations. The CIGRE B4 DC grid test system is used for evaluating the reliability/adequacy performance by means of the proposed methodology in this paper. The proposed remedial actions are effective for all contingencies; then, numerical results are as expected. This work is useful for planning and operation of grids based on VSC-HVDC technology.</p>

Sign in / Sign up

Export Citation Format

Share Document