Grid Integration of Large DFIG-Based Wind Farms Using VSC Transmission

Xu, Lie; Yao, Liangzhong; Sasse, C.

doi:10.1109/tpwrs.2007.901306

Cited by 353 publications

(186 citation statements)

References 12 publications

Supporting

Mentioning

186

Contrasting

Order By: Relevance

“…The onshore transmitted active power quickly reduces to 0 as shown in Fig. 9 (h), while the WT and diode rectifier still try to transmit the During the fault, the active current of the MMC is reduced using a voltage dependent current order limit (VDCOL) while its reactive current is increased [21]. This unbalanced active power leads to the charge of MMC submodule capacitors and consequently their voltages (shown as the average value of all the submodules) increase as shown in Fig.…”

Section: A Start-up and Synchronizationmentioning

confidence: 99%

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

2018

IEEE Trans. Power Delivery

Self Cite

132

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: A Start-up and Synchronizationmentioning

confidence: 99%

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

2018

IEEE Trans. Power Delivery

Self Cite

132

View full text Add to dashboard Cite

show abstract

“…• Advantages : Black start capability [19], no requirement for reactive power compensation, more compact and lighter compared to LCC, no need for harmonic filter, can be operated in both capacitive or inductive modes [20], [21], VSC valves are independent of the zero crossings of the current and balanced operation of the linked AC system, ability to control the negative sequence current injection in the offshore wind power plant [22], shorter design and installation times [15], using IGBT switches enables the VSC-HVDC scheme to be switched on and off at higher rate [23] and needs no external voltage source for commutation [24].…”

Section: ) Utilized Hvdc Technologymentioning

confidence: 99%

Information gap decision theory based OPF with HVDC connected wind farms

Rabiee

Soroudi

Keane

2015

2015 IEEE Power &Amp; Energy Society General Meeting

View full text Add to dashboard Cite

“…The faults occurring on the grid or wind farm can directly affect one another because of the connection of AC cables. Such cables also need reactive power compensation [4], [5], [13]. These disadvantages curb the development of wind power.…”

Section: Introductionmentioning

confidence: 99%

“…Relevant studies have been conducted on WFS converter control. Xu et al [13] proposed an AC voltage control with only a feedback control loop via the modulation index. Lin et al [14] presented a novel AC voltage and phase-angle control scheme for WFS converters of AC/VSC-HVDC hybrid transmission systems.…”

Section: Introductionmentioning

confidence: 99%

Design of Emotional Learning Controllers for AC Voltage and Circulating Current of Wind-Farm-Side Modular Multilevel Converters

Li¹,

Liao²,

Liu³

et al. 2016

Journal of Power Electronics

View full text Add to dashboard Cite

The introduction of a high-voltage direct-current (HVDC) system based on a modular multilevel converter (MMC) for wind farm integration has stimulated studies on methods to control this type of converter. This research article focuses on the control of the AC voltage and circulating current for a wind-farm-side MMC (WFS-MMC). After theoretical analysis, emotional learning (EL) controllers are proposed for the controls. The EL controllers are derived from the learning mechanisms of the amygdala and orbitofrontal cortex which make the WFS-MMC insensitive to variance in system parameters, power change, and fault in the grid. The d-axis and q-axis currents are respectively considered for the d-axis and q-axis voltage controls to improve the performance of AC voltage control. The practicability of the proposed control is verified under various conditions with a point-to-point MMC-HVDC system. Simulation results show that the proposed method is superior to the traditional proportional-integral controller.

show abstract

Grid Integration of Large DFIG-Based Wind Farms Using VSC Transmission

Cited by 353 publications

References 12 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

Information gap decision theory based OPF with HVDC connected wind farms

Design of Emotional Learning Controllers for AC Voltage and Circulating Current of Wind-Farm-Side Modular Multilevel Converters

Contact Info

Product

Resources

About