LCC-HVDC Connection of Offshore Wind Farms With Reduced Filter Banks

Blasco-Gimenez, R.; Aparicio, N.; Añó-Villalba, S.; Bernal-Perez, S.

doi:10.1109/tie.2012.2227906

Cited by 90 publications

(52 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This approach was firstly suggested in [8]- [11], and has been further developed in industry for offshore wind farm connection [12], [13]. The main benefits of DR-HVDC when compared to VSC-HVDC are lower investment and space requirement, higher efficiency and robustness.…”

Section: Introductionmentioning

confidence: 99%

“…In [8], a voltage and frequency control is proposed, while communication for a centralized voltage control is required and all the wind turbines start-up from the beginning, with the synchronization process not being addressed. The fault ride-through performance and the operation with reduced diode rectifier filter are analyzed in [10], [11] using the same control strategy. In [13], umbilical ac cables are used to start-up the unidirectional DR-HVDC and a reactive power frequency droop control is presented.…”

Section: Introductionmentioning

confidence: 99%

“…Unlike in [8]- [11], communication is not required for the proposed distributed PLL-based frequency control. And a major difference of the proposed method in relation to the control method in [14] is that the synchronization tool of the proposed control is based on PLL, which is much simpler and more efficient than GPS used in [14].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

2018

IEEE Trans. Power Delivery

111

135

View full text Add to dashboard Cite

This version is available at https://strathprints.strath.ac.uk/62289/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output.This paper is a post-print of a paper submitted to and accepted for publication in IEEE Transactions on Power Delivery and is subject to Institution of Electrical and Electronic Engineering Copyright. The copy of record is available at IEEE Xplore Digital Library.Abstract-A distributed PLL-based frequency control is proposed in this paper for offshore wind turbine converters connected with diode-rectifier based high-voltage-direct-current (HVDC) systems. The proposed control enables a large number of wind turbines to work autonomously to contribute to the offshore AC frequency and voltage regulation. The proposed control also provides automatic synchronization of the offline wind turbines to the offshore AC grid. Stability of the proposed frequency control is analyzed using root locus method. Moreover, an active dc voltage control of the onshore modular multilevel converter (MMC) is proposed to ride-through onshore AC fault, where the onshore MMC converter quickly increases the dc voltage by adding additional submodules in each phase, in order to rapidly reduce wind farm active power generation so as to achieve quick active power re-balance between the offshore and onshore sides. Thus the overvoltage of the submodule capacitor is alleviated during the onshore fault, reducing the possibility of system disconnection. Simulation results in PSCAD verify the proposed control strategy during start-up, synchronization and under onshore and offshore fault conditions. Index Terms-diode-rectifier based HVDC, distributed PLLbased frequency control, offshore wind power integration, onshore AC fault, synchronization of wind turbine converters I. INTRODUCTION N Europe, onshore wind farms have already been well developed, and more attention has been drawn to offshore sites. Many large offshore wind farms will be developed in the ...

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

2018

IEEE Trans. Power Delivery

111

135

View full text Add to dashboard Cite

show abstract

“…Recently, the concept of the dc solid-state transformer (DCT) has been proposed which uses active controlled power electronic components to optimize converter performance. [6][7][8][9]. Similar to the ac transformer, the dc solid-state transformer can adapt the dc voltage to any higher or lower voltage level.…”

Section: Introductionmentioning

confidence: 99%

Mechanism to Regulate DC Fault Currents in DC Solid State Transformers under Continuous Working Performance of Multi-Terminal HVDC Systems

Chiranth¹

2017

IJRASET

View full text Add to dashboard Cite

Once the pole-to-pole dc fault occurs in a multi-terminal HVDC system, it is desirable that the stations and dc solidstate transformers on healthy cables continue to operate, rather than blocking. To reduce the fault current of a modular multilevel converter based dc solid-state transformer, active fault current control is proposed, where the dc and ac components of fault arm currents are controlled independently. By dynamically regulating the dc offset of the arm voltage rather than being set at half the rated dc voltage, the dc component in the fault current is reduced significantly. Additionally, reduced ac voltage operation of the dc solid-state transformer during the fault is proposed, where the ac voltage of transformer is actively restricted in the controllable range of both converters in the transformer to effectively suppress the ac component of the fault current. The fault arm current peak and the energy absorbed by the surge arrester in the dc circuit breakers are reduced by 31.8% and 4.9% respectively, thereby lowering the capacities of switching devices and circuit breakers. The novel active fault current control mechanism and the essential control strategy are presented and simulation results confirm its feasibility. I. INTRODUCTIONThe deregulation of international energy markets and the trend to decentralized power generation are increasing the demand for advanced power electronic systems. For this application field multilevel converters with a high number of voltage levels seem to be the most suitable types, MMC was first proposed for HVDC applications at 2003from a Marquardt and it is first employed commercially in Trans Bay Cable project in a San Francisco. In the present scenario the Modular Multi-Level Converter (MMC) is becoming the most common type of a voltage source converter for HVDC applications. DC fault protection is an issue to be resolved for the development of modular multilevel converter (MMC) based HVDC transmission systems. [1][2][3][4]. The dc circuit breakers (DCCBs) have the potential to isolate a dc fault and protect stations from damage and limiting reactors are series connected with the fast acting DCCBs (e.g. solid-state DCCBs, hybrid DCCBs) to limit the fault current di/dt and decrease the fault current peak. Recently, the concept of the dc solid-state transformer (DCT) has been proposed which uses active controlled power electronic components to optimize converter performance. [6][7][8][9]. Similar to the ac transformer, the dc solid-state transformer can adapt the dc voltage to any higher or lower voltage level. By blocking all the converters of the dc solid-state transformer, dc faults can be isolated without significantly affecting the healthy system parts. Thus, the dc solid-state transformer appears the only approach to connect and interconnect existing HVDC links with different dc voltages. These transformers are available in different configurations which include the thyristor based solid-state transformer[10],the dual-active bridge (DAB) transformer [1...

show abstract

“…Because of the IGBT ratings, the VSC's power transfer capacity is lower than CSC. In addition, the VSC requires a commutation circuit [3]- [5].…”

Section: Introductionmentioning

confidence: 99%

A New AC/DC Converter for the Interconnections between Wind Farms and HVDC Transmission Lines

Nouri¹,

Babaei²,

Hosseini³

2014

Journal of Power Electronics

View full text Add to dashboard Cite

In this paper, a new ac/dc converter is proposed for HVDC-connected wind farms. The proposed converter provides a suitable dc voltage for HVDC transmission systems. Each wind turbine is connected to two full bridge diode rectifiers. These rectifiers are connected to each other by three thyristors. Firing the thyristors at desired angles provides an adjustable dc voltage in the output of the converter. Simulation results show the efficiency of the proposed converter.

show abstract

LCC-HVDC Connection of Offshore Wind Farms With Reduced Filter Banks

Cited by 90 publications

References 30 publications

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

Mechanism to Regulate DC Fault Currents in DC Solid State Transformers under Continuous Working Performance of Multi-Terminal HVDC Systems

A New AC/DC Converter for the Interconnections between Wind Farms and HVDC Transmission Lines

Contact Info

Product

Resources

About