Point of common coupling voltage recovery capability improvement of offshore wind farm connected to a weak grid through high voltage direct current link

2012 ◽  
Vol 4 (6) ◽  
pp. 063109 ◽  
Author(s):  
Dinh Chung Phan ◽  
Kyoung-Soo Ro
Keyword(s):  
Direct Current ◽  
Wind Farm ◽  
Offshore Wind ◽  
Offshore Wind Farm ◽  
High Voltage Direct Current ◽  
Weak Grid ◽  
Point Of Common Coupling ◽  
Common Coupling ◽  
Voltage Recovery ◽  
Capability Improvement

scholarly journals Investigation and Mitigation of Temporary Overvoltage Caused by De-Energization on an Offshore Wind Farm

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4439
Author(s):  
Ajibola Akinrinde ◽  
Andrew Swanson ◽  
Innocent Davidson
Keyword(s):  
Wind Farm ◽  
Phase Plane ◽  
Circuit Breaker ◽  
Offshore Wind ◽  
Offshore Wind Farm ◽  
Circuit Breakers ◽  
Shunt Reactor ◽  
Point Of Common Coupling ◽  
Common Coupling ◽  
Transformer Core

The Ferranti effect could cause a rise in voltage along the cables on a wind farm if the circuit breakers at the receiving ends are switched off. Ferroresonance could also occur due to stuck pole(s) of the circuit breaker during de-energization. This paper reports on the temporary overvoltage (TOV) arising from the de-energization of the circuit breaker connecting the wind turbine to the feeder, the feeder breaker connecting an array of wind turbines to the point of common coupling (PCC), and the opening of the circuit breaker connecting the onshore to the offshore substation. Ferroresonance was characterized using a phase plane diagram and Poincaré map and was identified to be chaotic. The effect of the nonlinear characteristic of the wind transformer core on the ferroresonant overvoltage was examined and increased with the steepness of slope of the transformer curve. A damping resistor, shunt reactor and surge arrester were used to mitigate the overvoltage experienced during the ferroresonant event. The damping resistor was able to reduce the overvoltage to 1.24 P.U. and damped the ferroresonance from chaotic to fundamental mode.

scholarly journals Dynamic Wind Power Plant Control for System Integration Using the Generator Response Following Concept

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1804 ◽  
Author(s):  
David Campos-Gaona ◽  
Adam Stock ◽  
Olimpo Anaya-Lara ◽  
William Leithead
Keyword(s):  
Wind Power ◽  
System Integration ◽  
Power Plants ◽  
Wind Farm ◽  
Synchronous Generator ◽  
Offshore Wind ◽  
High Voltage Direct Current ◽  
Power Plant Control ◽  
Point Of Common Coupling ◽  
Novel Concept

In this paper, a novel concept to integrate High Voltage Direct Current (HVDC)-connected offshore wind power plants with the onshore grid is presented. The concept makes use of a holistic wind farm controller along with a fully instrumented conventional synchronous generator at the point of common coupling. In our approach, the wind farm is able to replicate the natural response of the generator to a system, even enabling the wind farm to reproduce, in a scaled up manner, a range of ancillary services without having to rely on indirect frequency measurements which are prone to noise and delays. Simulation results are presented to validate the proposed solution.

Damping of Frequency Fluctuations of Hybrid Power System by Variable Deloaded Operation of PMSG Based Offshore Wind Farm

2019 ◽  
Vol 139 (4) ◽  
pp. 259-268
Author(s):  
Effat Jahan ◽  
Md. Rifat Hazari ◽  
Mohammad Abdul Mannan ◽  
Atsushi Umemura ◽  
Rion Takahashi ◽  
...  
Keyword(s):  
Power System ◽  
Wind Farm ◽  
Offshore Wind ◽  
Offshore Wind Farm ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Frequency Fluctuations
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