scholarly journals Small-signal modeling and stability analysis of grid-connected offshore wind power based on virtual synchronous generator control

2021 ◽  
Vol 2087 (1) ◽  
pp. 012055
Author(s):  
Lihu Dong ◽  
Danqing Song ◽  
Zhuo Chen
Keyword(s):  
Wind Power ◽  
Power Grid ◽  
Synchronous Generator ◽  
Offshore Wind ◽  
System Stability ◽  
Design Parameters ◽  
Stable Operation ◽  
Small Signal ◽  
Offshore Wind Power ◽  
Grid Connected Inverter

Abstract With the increasing installed capacity of offshore wind power, the grid-connected of offshore wind power technology based on virtual synchronous generators (VSG) control can simulate the inertia and damping characteristics of synchronous generator, which is helpful to improve the networking ability and inertial supportability of grid-connected inverter. However, VSG control also inevitably causes system oscillation, endangers the safe and stable operation of the power grid. Hence, the main circuit and control circuit of offshore wind power grid connection are firstly modeled, and the small-signal model of offshore wind power grid-connected inverter based on VSG control is obtained. Then the correctness of the model is verified by Matlab/Simulink software. Finally, the root trajectory method is used to identify the effects of VSG control parameters and line parameters on the system stability. The results show that VSG control has a significant influence on the stability of the grid-connected system, and reasonable design parameters are needed to ensure the safe and stable operation of the power grid.

scholarly journals Small-signal stability and fault performance of mixed grid forming and grid following offshore wind power plants connected to a HVDC-diode rectifier

2020 ◽  
Vol 14 (12) ◽  
pp. 2166-2175
Author(s):  
Jaime Martínez-Turégano ◽  
Salvador Añó-Villalba ◽  
Soledad Bernal-Perez ◽  
Ruben Peña ◽  
Ramon Blasco-Gimenez
Keyword(s):  
Wind Power ◽  
Power Plants ◽  
Offshore Wind ◽  
Small Signal ◽  
Small Signal Stability ◽  
Offshore Wind Power ◽  
Signal Stability ◽  
Wind Power Plants

scholarly journals Study of offshore wind power penetration rate in gas turbine generator platform power grid

2021 ◽  
Vol 7 ◽  
pp. 141-146
Author(s):  
Qingguang Yu ◽  
Yuming Liu ◽  
Zhicheng Jiang ◽  
Le Li ◽  
Yingke Zhang ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Wind Power ◽  
Penetration Rate ◽  
Power Grid ◽  
Offshore Wind ◽  
Turbine Generator ◽  
Offshore Wind Power

A Novel Vibration Suppression Device for Floating Offshore Wind Generator

2019 ◽  
Vol 141 (6) ◽  
Author(s):  
Xun Xu ◽  
Fen Lai ◽  
Guojun Li ◽  
Xiangyuan Zhu ◽  
Liping Zhu
Keyword(s):  
Wind Power ◽  
Vibration Suppression ◽  
Clean Energy ◽  
Working Environment ◽  
Offshore Wind ◽  
Stable Operation ◽  
Power Station ◽  
Offshore Wind Power ◽  
Wind Generator ◽  
Wind Power Station

With the increasing demand for clean energy, offshore wind power is developing rapidly. But compared to onshore situation, the working environment at sea is very complicated. In order to ensure the stable operation of generators, higher requirements are put forward for the capability of offshore wind power structures to resist wind and waves. This paper proposes a new combined vibration suppressing device, which can be used to suppress the swaying vibration of offshore floating wind generator under waves. The floating wind power station tower was modeled, the wave force and the torsion force of the tower were analyzed, and the fluid structure interaction numerical simulation was carried out. The calculation results demonstrate that the amplitudes of the tower torsion angle have been attenuated by 8%, 11%, and 17% with different vibration suppression devices which are tuned mass damper (TMD), tuned liquid damper (TLD), and a tuned immersed mass and liquid damper. In this case, the new combined device has the best vibration suppression performance. It is validated that compared to the other two single vibration suppression devices, the new combined device has better vibration suppression capacity, and a new way is provided to design the vibration suppression device for offshore floating wind power station.

scholarly journals Integrating Offshore Wind Power and Multiple Oil and Gas Platforms to the Onshore Power Grid Using VSC-HVDC Technology

2014 ◽  
Vol 48 (2) ◽  
pp. 31-44 ◽  
Author(s):  
Magne Lorentzen Kolstad ◽  
Atle Rygg Årdal ◽  
Kamran Sharifabadi ◽  
Tore Marvin Undeland
Keyword(s):  
Wind Power ◽  
Oil And Gas ◽  
Power Grid ◽  
Offshore Wind ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Offshore Wind Power ◽  
High Voltage Direct Current ◽  
The North ◽  
Dynamic Simulation Model

AbstractThis paper investigates the possibilities of integrating oil and gas platforms and offshore wind power to the onshore power grid. The main motivation for this proposal is to reduce the large greenhouse gas emissions associated with onsite power generation on traditional oil and gas platforms and to improve the economy of offshore wind projects. The feasibility of a hypothetical power system in the North Sea consisting of five oil and gas platforms and one offshore wind power plant with a common connection to the onshore power grid is studied. This combined grid integration concept has not been given much attention in similar previous publications. The connection to the onshore grid is realized through a high-voltage direct current transmission system based on voltage source converter technology. A dynamic simulation model of the system and a control system are presented, and simulations are performed, using SimPowerSystems in MATLAB/Simulink, on system disturbances that are thought to be critical for the operation of the system. The simulation cases represent large disturbances that the system should be designed to withstand. It was concluded that the system handles variations in the load very well and that the system configuration studied in this paper is regarded as a feasible way of integrating oil and gas platforms and offshore wind power to the onshore grid.

Kriegers flak‐combined grid solution: coordinated cross‐border control of a meshed HVAC/HVDC offshore wind power grid

2018 ◽  
Vol 12 (13) ◽  
pp. 1493-1499 ◽  
Author(s):  
Anne‐Katrin Marten ◽  
Vladislav Akmatov ◽  
Thomas Bentzon Sørensen ◽  
Reinhard Stornowski ◽  
Dirk Westermann ◽  
...  
Keyword(s):  
Wind Power ◽  
Power Grid ◽  
Offshore Wind ◽  
Border Control ◽  
Offshore Wind Power ◽  
Cross Border ◽  
Grid Solution
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