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Research Output 2000 2019

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Paper

An alternative protection strategy for multi-terminal HVDC

Page, F., Finney, S. & Xu, L., Nov 2014. 6 p.

Research output: Contribution to conferencePaper

Open Access
File
Electric circuit breakers
Costs
Economics
32 Citations (Scopus)

An improved modular multilevel converter with DC fault blocking capability

Zeng, R., Xu, L. & Yao, L., Jul 2014. 5 p.

Research output: Contribution to conferencePaper

Semiconductor devices
Topology
Networks (circuits)
Costs
Experiments

A novel HVDC system based on flying capacitor multilevel PWM converters

Agelidis, V. G. & Xu, L., 2001.

Research output: Contribution to conferencePaper

Pulse width modulation
Capacitors

Assessment and implementation of inertia response from variable speed wind turbines

Xu, G., Xu, L. & Morrow, D. J., 2012.

Research output: Contribution to conferencePaper

Wind turbines
6 Citations (Scopus)

A VSC transmission system using flying capacitor multilevel converters and selective harmonic elimination pWM control

Xu, L. & Agelidis, V. G., Nov 2005, p. 1176-1181. 6 p.

Research output: Contribution to conferencePaper

Capacitors
Pulse width modulation
Electric potential
51 Citations (Scopus)

Comparison of using SVC and STATCOM for wind farm integration

Xu, L., Yao, L. & Sasse, C., Oct 2006, p. 1-7. 7 p.

Research output: Contribution to conferencePaper

Asynchronous generators
Farms
Reactive power
System stability
Rotors
4 Citations (Scopus)

Considerations in design of an offshore network

Bell, K., Xu, L. & Houghton, T., Aug 2014.

Research output: Contribution to conferencePaper

Economics
Electric power transmission networks
Electric circuit breakers
Fault detection
Wind power

Continued operation of multi-terminal HVDC networks based on modular multilevel converters

Ased, G. P., Li, R., Holliday, D., Finney, S., Xu, L., Williams, B. W., Kuroda, K., Yamamoto, R. & Ito, H., 30 Nov 2014, (Accepted/In press).

Research output: Contribution to conferencePaper

Open Access
File
Poles
Passive networks
Electric circuit breakers
Electric potential
Short circuit currents

Control and operation of multi-terminal DC systems for integrating large offshore wind farms

Xu, L., Williams, B., Yao, L. & Bazargan, M., May 2008, (Unpublished).

Research output: Contribution to conferencePaper

File
Offshore wind farms
LSI circuits
Electric power transmission networks
Wind power
21 Citations (Scopus)

Control of VSC transmission systems under unbalanced network conditions

Xu, L., Andersen, B. & Cartwright, P., Sep 2003, p. 626-632 . 7 p.

Research output: Contribution to conferencePaper

Controllers
Decomposition
16 Citations (Scopus)

Coordinated control and operation of DFIG and FSIG based wind farms

Foster, S., Xu, L. & Fox, B., 2007, p. 522-527. 6 p.

Research output: Contribution to conferencePaper

Reactive power
Farms
Wind turbines
Rotors
Electric potential
1 Citation (Scopus)
Open Access
File
Offshore wind farms
Electric fault currents
Diodes
Bridge clearances
Electric current control

DC fault protection of multi-terminal HVDC systems using DC network partition and DC circuit breakers

Rahman, M. H., Xu, L. & Bell, K., 2 Jul 2015, p. 1-10. 10 p.

Research output: Contribution to conferencePaper

Open Access
File
Electric circuit breakers
Power transmission
MATLAB
Cables
Costs
1 Citation (Scopus)

DC microgrid dynamic performance assessment and enhancement based on virtual impedance method

Chen, D. & Xu, L., 31 Oct 2014. 7 p.

Research output: Contribution to conferencePaper

Open Access
File
Transfer functions
Networks (circuits)
Experiments
13 Citations (Scopus)

DC microgrid with variable generations and energy storage

Chen, D. & Xu, L., Sep 2011. 6 p.

Research output: Contribution to conferencePaper

Energy storage
Electric potential
System stability
Voltage control
Control systems
44 Citations (Scopus)

Direct power control of grid connected voltage source converters

Xu, L., Zhi, D. & Yao, L., 23 Jul 2007. 6 p.

Research output: Contribution to conferencePaper

Power control
Electric potential
Reactive power
Fluxes
Electric current control

Enabling power electronic technologies for grid integrations of large offshore wind farms

Yao, L. Z., Macleod, N. & Xu, L., 2007, p. 428-438. 10 p.

Research output: Contribution to conferencePaper

Offshore wind farms
Power electronics
System stability
Electricity
Electric potential

Enhanced AC voltage and frequency control on offshore MMC station for wind farm

Jing, Y., Li, R., Xu, L. & Wang, Y., 19 Oct 2017. 6 p.

Research output: Contribution to conferencePaper

Open Access
File
Electric potential
Wind power
Offshore wind farms
Phase locked loops
Controllability

Fault ride through of large offshore wind farms using HVDC transmission

Xu, L., Yao, L. & Bazargan, M., Jul 2009, (Unpublished).

Research output: Contribution to conferencePaper

Offshore wind farms

HVDC transmission options for large offshore windfarms

Kirby, N., Xu, L. & Siepmann, W., Apr 2002.

Research output: Contribution to conferencePaper

Wind power
Turbines
Electric potential
Industry

Hybrid HVDC for power transmission to island networks

Andersen, B. & Xu, L., Sep 2003, p. 55-60. 5 p.

Research output: Contribution to conferencePaper

Hybrid systems
Thyristors
Power transmission
Costs
Static synchronous compensators

Hybrid HVDC for supply of power to offshore oil platforms

Andersen, B., Xu, L. & Cartwright, P., 2004. 8 p.

Research output: Contribution to conferencePaper

Open Access
File
Hybrid systems
Thyristors
Costs
Static synchronous compensators
Oils

Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system

Zhou, D., Rahman, M. H., Xu, L. & Wang, Y., 14 Feb 2018, (Accepted/In press) p. 1-6. 6 p.

Research output: Contribution to conferencePaper

Open Access
File
Frequency response
Electric circuit breakers
Outages
Restoration
HVAC
8 Citations (Scopus)

Improved direct power control of doubly-fed induction generator based wind energy generation system

Zhi, D., Xu, L. & Morrow, J. A., 2007, p. 436-441. 5 p.

Research output: Contribution to conferencePaper

Asynchronous generators
Power control
Wind power
Switching frequency
Rotors

Improved operation of DFIG based wind farms during network unbalance

Xu, L., Yao, L., Macleod, N. & Wang, Y., Aug 2008.

Research output: Contribution to conferencePaper

Farms
3 Citations (Scopus)

Influence of the fan cowl on the acoustic noise radiated from PWM controlled induction machines

Zhu, Z. Q., Xu, L. & Howe, D., Jun 2001, p. 218-224. 9 p.

Research output: Contribution to conferencePaper

pulse duration modulation
fans
induction
acoustics
plastics

Large offshore wind farm grid integration - challenges and solutions

Yao, L., Xu, L., Bazargan, M. & Macleod, N., 2008, (Unpublished).

Research output: Contribution to conferencePaper

Offshore wind farms
15 Citations (Scopus)

Modelling and control of a variable-speed switched reluctance generator based wind turbine

McSwiggan, D., Xu, L. & Littler, T., 6 Sep 2007, p. 459-463. 5 p.

Research output: Contribution to conferencePaper

Open Access
File
Wind turbines
Control systems

MTDC systems for frequency support base on DC voltage manipulation

Xu, L., Rafferty, J., Wang, Y. & Xu, G., 17 Oct 2015. 6 p.

Research output: Contribution to conferencePaper

Open Access
File
Offshore wind farms
Electric potential
Telecommunication

Multi-Terminal HVDC Grid for Network Interconnection and Renewable Energy Integration

Yao, L., Xu, L., Bazargan, M. & Critchley, R., 2010, (Unpublished).

Research output: Contribution to conferencePaper

Offshore wind farms
Voltage control
Damping
Electric power transmission networks
Electric potential

Multi-terminal HVDC system for large offshore wind farm integration and transmission network support

Xu, L., Wang, Y., Yao, L. & Rasolonjanahary, J. L., Oct 2009, (Unpublished).

Research output: Contribution to conferencePaper

Offshore wind farms
Electric power transmission networks
LSI circuits
Wind power

Offshore wind farm integration using FACTS and HVDC solutions

Sasse, C., Xu, L. & Yao, L., 2006.

Research output: Contribution to conferencePaper

Offshore wind farms
Flexible AC transmission systems
Open Access
File
Electric circuit breakers
Electric fault currents
Electric network analysis
Inductance
Energy dissipation
Open Access
File
Power transmission
Wind power
Diodes
Offshore wind farms
HVAC
2 Citations (Scopus)

Power network support using wind turbines with energy storage systems

Xu, G., Xu, L. & Morrow, D. J., Sep 2011. 6 p.

Research output: Contribution to conferencePaper

Wind turbines
Energy storage
Reactive power
Power control
MATLAB

Power transmission and large scale wind farm integration using multi-terminal DC systems

Rafferty, J. & Xu, L., 25 Oct 2011.

Research output: Contribution to conferencePaper

Power transmission
Farms
Open Access
File
Stability criteria
Power converters
System stability

Stability norms control using the virtual impedance concept for power frequency applications

Abojlala, K. I., Holliday, D. & Xu, L., 19 Oct 2017, p. 1-6. 6 p.

Research output: Contribution to conferencePaper

Open Access
File
Control systems
Stability criteria
Drag
Static synchronous compensators

Steady-state operation of HVDC power transmission system with voltage-source converters and simultaneous VAR compensation

Xu, L., Agelidis, V. G. & Acha, E., Aug 2001.

Research output: Contribution to conferencePaper

HVDC power transmission
Electric potential
Compensation and Redress

The integration of large scale wind power generation into transmission networks using power electronics

Cartwright, P. & Xu, L., 2004.

Research output: Contribution to conferencePaper

Electric power transmission networks
Power electronics
Wind power
Power generation

Transient analysis of interline dynamic voltage restorer using dynamic phasor representation

Abojlala, K. I., Holliday, D. & Xu, L., 7 Apr 2016, (Accepted/In press). 8 p.

Research output: Contribution to conferencePaper

Open Access
File
Transient analysis
Electric potential
MATLAB
Planning
26 Citations (Scopus)

Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support

Zhu, X., Wang, Y., Xu, L., Zhang, X. & Li, H., Sep 2011. 6 p.

Research output: Contribution to conferencePaper

Asynchronous generators
Wind turbines
Kinetic energy
Farms
Wind power
70 Citations (Scopus)

VSC transmission model for analytical studies

Jovcic, D., Lamont, L. & Xu, L., Jul 2003, p. 1737-1742. 6 p.

Research output: Contribution to conferencePaper

Electric potential
Phase locked loops
System stability
Controllers
Multivariable systems