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Research Output 2000 2019

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2000
117 Citations (Scopus)

Acoustic noise radiated by PWM-controlled induction machine drives

Lo, W. C., Chan, C. C., Zhu, Z. Q., Xu, L., Howe, D. & Chau, K. T., Aug 2000, In : IEEE Transactions on Industrial Electronics. 47, 4, 10 p.

Research output: Contribution to journalArticle

Acoustic noise
Modulation
Vector spaces
Air
Induction motors
28 Citations (Scopus)

Acoustic noise radiated from direct torque controlled induction motor drives

Xu, L., Zhu, Z. Q. & Howe, D., Nov 2000, In : IET Electric Power Applications. 147, 6, p. 491-496 6 p.

Research output: Contribution to journalArticle

Acoustic noise
Induction motors
Torque
Pulse width modulation
Fluxes
2001
41 Citations (Scopus)

Development considerations of DSP-controlled PWM VSC-based STATCOM

Xu, L., Agelidis, V. G. & Acha, E., 2001, In : IEE Proceedings Electric Power Applications. 148, 5, p. 449-455 6 p.

Research output: Contribution to journalArticle

Pulse width modulation
Electric potential
Insulated gate bipolar transistors (IGBT)
Digital signal processing
Transient analysis
2002
42 Citations (Scopus)

A flying capacitor multilevel converter based UPFC

Xu, L. & Agelidis, V. G., 2002, In : IEE Proceedings Electric Power Applications. 149, p. 304-310 7 p.

Research output: Contribution to journalArticle

Capacitors
Controllers
Electric potential
Harmonic distortion
Reactive power
35 Citations (Scopus)

HVDC transmission for large offshore windfarms

Kirby, N., Xu, L., Lucket, M. & Siepmann, W., 2002, In : Power Engineering Journal. 16, 3, p. 135-141 7 p.

Research output: Contribution to journalArticle

Offshore wind farms
Onshore wind farms
Electric potential
Wind power
Turbines

Topology for VSC transmission

Andersen, B., Xu, L., Horton, P. & Cartwright, P., 2002, In : Power Engineer. 16, p. 142-150 9 p.

Research output: Contribution to journalArticle

Capacitors
Topology
Electric potential
DC power transmission
Electric commutation
2004
49 Citations (Scopus)

Active capacitor voltage control of flying capacitor multilevel converters

Xu, L. & Agelidis, V. G., 8 May 2004, In : IEE Proceedings Electric Power Applications. 151, 3, p. 313-321 8 p.

Research output: Contribution to journalArticle

Voltage control
Capacitors
Electric potential
Switches
Modulation
126 Citations (Scopus)

Hybrid HVDC system for power transmission to island networks

Andersen, B. & Xu, L., Oct 2004, In : IEEE Transactions on Power Delivery. 19, 4, p. 1884-1890 6 p.

Research output: Contribution to journalArticle

Power transmission
Electric potential
Hybrid systems
Thyristors
Costs
2005
24 Citations (Scopus)

Multi-level converter based VSC transmission operating under fault AC conditions

Xu, L., Andersen, B. & Cartwright, P., 2005, In : IEE Proceedings Generation Transmission and Distribution. 152, 2, p. 185-193 9 p.

Research output: Contribution to journalArticle

Capacitors
Electric potential
Controllers
Modulation
Decomposition
224 Citations (Scopus)

VSC transmission operating under unbalanced AC conditions - analysis and control design

Xu, L., Andersen, B. & Cartwright, P., Jan 2005, In : IEEE Transactions on Power Delivery. 20, 1, p. 427-434 7 p.

Research output: Contribution to journalArticle

Electric potential
Controllers
Decomposition
2006
556 Citations (Scopus)

Direct active and reactive power control of DFIG for wind energy generation

Xu, L. & Cartwright, P., Sep 2006, In : IEEE Transactions on Energy Conversion. 21, 3, p. 750-758 9 p.

Research output: Contribution to journalArticle

Asynchronous generators
Reactive power
Power control
Wind power
Stators
128 Citations (Scopus)

Grid integration of large offshore wind farms using HVDC

Xu, L. & Andersen, B., 2006, In : Wind Energy. 9, p. 371-382 12 p.

Research output: Contribution to journalArticle

Offshore wind farms
Electric potential
HVDC power transmission
Asynchronous generators
14 Citations (Scopus)

Increasing wind farm capacity

Dinic, N., Fox, B., Flynn, D., Xu, L. & Kennedy, A., Jul 2006, In : IEE Proceedings Generation Transmission and Distribution. 153, 4, p. 493-498 6 p.

Research output: Contribution to journalArticle

Farms
Electric potential
Asynchronous generators
Turbogenerators
Wind turbines
2007
277 Citations (Scopus)

Direct power control of DFIG with constant switching frequency and improved transient performance

Zhi, D. & Xu, L., Mar 2007, In : IEEE Transactions on Energy Conversion. 22, 1, p. 110-118 8 p.

Research output: Contribution to journalArticle

Asynchronous generators
Switching frequency
Reactive power
Power control
Rotors
518 Citations (Scopus)

Dynamic modeling and control of DFIG-based wind turbines ynder unbalanced network conditions

Xu, L. & Wang, Y., Feb 2007, In : IEEE Transactions on Power Systems. 22, 1, p. 314-323 9 p.

Research output: Contribution to journalArticle

Asynchronous generators
Wind turbines
Stators
Torque
Rotors
327 Citations (Scopus)

Grid integration of large DFIG-based wind farms using VSC transmission

Xu, L., Yao, L. & Sasse, C., Aug 2007, In : IEEE Transactions on Power Systems. 22, 3, p. 976-984 9 p.

Research output: Contribution to journalArticle

Asynchronous generators
Farms
Electric potential
Frequency modulation
69 Citations (Scopus)

VSC transmission system using flying capacitor multilevel converters and hybrid PWM control

Xu, L. & Agelidis, V. G., Jan 2007, In : IEEE Transactions on Power Delivery. 22, 1, p. 693-702 10 p.

Research output: Contribution to journalArticle

Pulse width modulation
Capacitors
Electric potential
Reactive power
2008
268 Citations (Scopus)

Coordinated control of DFIG's rotor and grid side converters during network unbalance

Xu, L., 2 May 2008, In : IEEE Transactions on Power Electronics. 23, 3, p. 1041-1049 9 p.

Research output: Contribution to journalArticle

Asynchronous generators
Rotors
Controllers
Electric current control
Stators
23 Citations (Scopus)

Dynamic modeling and direct power control of wind turbine driven DFIG under unbalanced network voltage conditions

Hu, J. B., He, Y. K. & Xu, L., Dec 2008, In : Journal of Zhejiang University. Science A. 9, 12, p. 1731-1740 9 p.

Research output: Contribution to journalArticle

Asynchronous generators
Power control
Wind turbines
Rotors
Stators
92 Citations (Scopus)

Enhanced control and operation of DFIG-based wind farms during network unbalance

Xu, L., Dec 2008, In : IEEE Transactions on Energy Conversion. 23, 4, p. 1073-1081 8 p.

Research output: Contribution to journalArticle

Asynchronous generators
Farms
Controllers
Electric potential
Electric current control
2009
68 Citations (Scopus)

Compensation of network voltage unbalance using doubly fed induction generator-based wind farms

Wang, Y., Xu, L. & Williams, B. W., Mar 2009, In : IET Renewable Power Generation. 3, 1, p. 12-22 11 p.

Research output: Contribution to journalArticle

Asynchronous generators
Farms
Electric potential
Torque
Rotors
333 Citations (Scopus)

Improved control of DFIG systems during network unbalance using PI-R current regulators

Hu, J. B., He, Y. K., Xu, L. & Williams, B. W., Feb 2009, In : IEEE Transactions on Industrial Electronics. 56, 2, p. 439-451 12 p.

Research output: Contribution to journalArticle

Asynchronous generators
Electric potential
Torque
Electric current control
Stators
170 Citations (Scopus)

Improved direct power control of grid connected DC/AC converters

Zhi, D., Xu, L. & Williams, B., May 2009, In : IEEE Transactions on Power Electronics. 24, 5, p. 1280-1292 13 p.

Research output: Contribution to journalArticle

Power control
Reactive power
Electric potential
Switching frequency
Inductance
90 Citations (Scopus)

Predictive current control of doubly fed induction generators

Xu, L., Zhi, D. & Williams, B. W., Oct 2009, In : IEEE Transactions on Industrial Electronics. 56, 10, p. 4143-4153 11 p.

Research output: Contribution to journalArticle

Asynchronous generators
Electric current control
Rotors
Sampling
Vector spaces
30 Citations (Scopus)
Natural frequencies
Electric current control
Controllers
Electric potential
Modulators
2010
83 Citations (Scopus)

Coordinated control of DFIG and FSIG-based wind farms under unbalanced grid conditions

Wang, Y. & Xu, L., Jan 2010, In : IEEE Transactions on Power Delivery. 25, 1, p. 367-377 11 p.

Research output: Contribution to journalArticle

Asynchronous generators
Farms
Electric power transmission networks
Electric potential
Power electronics
69 Citations (Scopus)

Coordinated reactive power control for facilitating fault ride-through of DFIG and FSIG based wind farms

Foster, S., Xu, L. & Fox, B., Mar 2010, In : IET Renewable Power Generation. 4, 2, p. 128-138 11 p.

Research output: Contribution to journalArticle

Asynchronous generators
Reactive power
Power control
Farms
Power generation
28 Citations (Scopus)

Improved rotor current control of wind turbine driven doubly-fed induction generators during network voltage unbalance

Hu, J., He, Y. & Xu, L., Jul 2010, In : Electric Power Systems Research. 80, 7, p. 847-856 10 p.

Research output: Contribution to journalArticle

Asynchronous generators
Electric current control
Wind turbines
Rotors
Controllers
137 Citations (Scopus)

Model-based predictive direct power control of doubly fed induction generators

Zhi, D., Xu, L. & Williams, B., Feb 2010, In : IEEE Transactions on Power Electronics. 25, 2, p. 341-351 11 p.

Research output: Contribution to journalArticle

Asynchronous generators
Power control
Sampling
Reactive power
Stators
15 Citations (Scopus)

Predictive current control of grid-connected voltage source converters during network unbalance

Hu, J., He, Y., Xu, L. & Zhi, D., 2010, In : IET Power Electronics. 3, 5, p. 690-701 12 p.

Research output: Contribution to journalArticle

Electric current control
Electric potential
Vector spaces
Modulation
Sampling
2011
337 Citations (Scopus)

Control and operation of a DC microgrid with variable generation and energy storage

Xu, L. & Chen, D., Oct 2011, In : IEEE Transactions on Power Delivery. 26, 4, p. 2513-2522 10 p.

Research output: Contribution to journalArticle

Wind turbines
Energy storage
Wind power
Power generation
Control systems
172 Citations (Scopus)
Offshore wind farms
Voltage control
Electric potential
896 Citations (Scopus)

Reduced switching-frequency modulation and circulating current suppression for modular multilevel converters

Tu, Q., Xu, Z. & Xu, L., Jul 2011, In : IEEE Transactions on Power Delivery. 26, 3, p. 2009-2017 9 p.

Research output: Contribution to journalArticle

Frequency modulation
Switching frequency
Controllers
Electric potential
Modulation
2012
28 Citations (Scopus)

An ESPRIT-SAA-based detection method for broken rotor bar fault in induction motors

Xu, B., Sun, L., Xu, L. & Xu, G., Sep 2012, In : IEEE Transactions on Energy Conversion . 27, 3, p. 654-660 7 p.

Research output: Contribution to journalArticle

Invariance
Simulated annealing
Induction motors
Rotors
Time measurement
194 Citations (Scopus)

Autonomous DC voltage control of a DC microgrid with multiple slack terminals

Chen, D. & Xu, L., Nov 2012, In : IEEE Transactions on Power Systems. 27, 4, p. 1897-1905 9 p.

Research output: Contribution to journalArticle

Voltage control
Electric potential
Energy storage
Control systems
26 Citations (Scopus)

Coordinated DC voltage control of wind turbine with embedded energy storage system

Xu, G., Xu, L., Morrow, J. & Chen, D., 2012, In : IEEE Transactions on Energy Conversion . 27, 4, p. 1036-1045 10 p.

Research output: Contribution to journalArticle

Voltage control
Wind turbines
Energy storage
Controllers
Low pass filters
2013
166 Citations (Scopus)

DC voltage variation based autonomous control of DC microgrids

Chen, D., Xu, L. & Yao, L., 2013, In : IEEE Transactions on Power Delivery. 28, 2, p. 637-648 10 p.

Research output: Contribution to journalArticle

Energy storage
Level control
Electric potential
Wind turbines
Control systems
96 Citations (Scopus)

Improvement of the Hilbert method via ESPRIT for detecting rotor fault in induction motors at low slip

Xu, B., Sun, L., Xu, L. & Xu, G., Mar 2013, In : IEEE Transactions on Energy Conversion . 28, 1, p. 225-233

Research output: Contribution to journalArticle

Invariance
Induction motors
Rotors
Fast Fourier transforms
25 Citations (Scopus)

Power oscillation damping using wind turbines with energy storage systems

Xu, G., Xu, L. & Morrow, D. J., 26 Aug 2013, In : IET Renewable Power Generation. 7, 5, p. 449-457 9 p.

Research output: Contribution to journalArticle

Wind turbines
Energy storage
Damping
DC-DC converters
Reactive power
62 Citations (Scopus)

Sliding-mode control of a DFIG-based wind turbine under non-ideal grid voltages

Martinez, M. I., Susperregui, A., Tapia, G. & Xu, L., Jul 2013, In : IET Renewable Power Generation. 7, 4, p. 370-379 10 p.

Research output: Contribution to journalArticle

Asynchronous generators
Sliding mode control
Wind turbines
Rotors
Electric potential
2014
214 Citations (Scopus)

Design and operation of a hybrid modular multilevel converter

Zeng, R., Xu, L., Yao, L. & Williams, B. W., 14 Oct 2014, In : IEEE Transactions on Power Electronics. 30, 3, p. 1137-1146 10 p., 6807785.

Research output: Contribution to journalArticle

Open Access
File
Electric potential
Capacitors
Power transmission
Sorting
Equivalent circuits
22 Citations (Scopus)

Key technologies of VSC-HVDC and its application on offshore wind farm in China

Wu, J., Wang, Z., Xu, L. & Wang, G., Aug 2014, In : Renewable and Sustainable Energy Reviews . 36, p. 247-255 9 p.

Research output: Contribution to journalArticle

Offshore wind farms
Wind power
Electric potential
Wind turbines
Power quality
2015
56 Citations (Scopus)

A hybrid modular multilevel converter with novel three-level cells for DC fault blocking capability

Li, R., Fletcher, J. E., Xu, L., Holliday, D. & Williams, B. W., 1 Aug 2015, In : IEEE Transactions on Power Delivery. 30, 4, p. 2017-2026 10 p.

Research output: Contribution to journalArticle

Open Access
File
Semiconductor materials
Electric fault currents
Diodes
Clamping devices
Networks (circuits)
25 Citations (Scopus)

Analysis of voltage source converter-based high-voltage direct current under DC line-to-earth fault

Rafferty, J., Xu, L. & Morrow, J., Mar 2015, In : IET Power Electronics. 8, 3, p. 428–438 11 p.

Research output: Contribution to journalArticle

Open Access
File
Earth (planet)
Electric potential
Electric grounding
22 Citations (Scopus)

Considerations in design of an offshore network

Bell, K. R. W., Xu, L. & Houghton, T., Feb 2015, In : CIGRE Science and Engineering. 1, p. 79-92 14 p.

Research output: Contribution to journalArticle

Open Access
File
Electric power transmission networks
Electric circuit breakers
Fault detection
Economics
Costs
62 Citations (Scopus)

Continuous operation of radial multi-terminal HVDC systems under DC fault

Li, R., Xu, L., Holliday, D., Page, F., Finney, S. J. & Williams, B. W., 2015, In : IEEE Transactions on Power Delivery. 11 p.

Research output: Contribution to journalArticle

Open Access
File
Electric circuit breakers
Electric fault currents
Capacitors
Networks (circuits)
Electric potential
112 Citations (Scopus)

Control of PMSG-based wind turbines for system inertial response and power oscillation damping

Wang, Y., Meng, J., Zhang, X. & Xu, L., Apr 2015, In : IEEE Transactions on Sustainable Energy. 6, 2, p. 556-574 10 p.

Research output: Contribution to journalArticle

Open Access
File
Wind turbines
Damping
Controllers
Synchronous generators
Power control
31 Citations (Scopus)

Hybrid HVDC for integrating wind farms with special consideration on commutation failure

Zeng, R., Xu, L., Yao, L., Finney, S. J. & Wang, Y., 2015, In : IEEE Transactions on Power Delivery.

Research output: Contribution to journalArticle

Open Access
File
Electric commutation
Farms
Hybrid systems
Wind power
Topology
102 Citations (Scopus)

Pre-charging and DC fault ride-through of hybrid MMC based HVDC systems

Zeng, R., Xu, L., Yao, L. & Morrow, D. J., 2015, In : IEEE Transactions on Power Delivery. 9 p.

Research output: Contribution to journalArticle

Open Access
File
Electric potential
Bridge circuits
Telecommunication links
Capacitors
Modulation
2016
28 Citations (Scopus)
Open Access
File
Electric fault currents
Electric circuit breakers
Electric current control
Electric potential
Poles