主要研究領域

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研究領域摘要

    Chih-Wen Liu (劉志文) He received the B.S. degree in electrical engineering from National Taiwan University in 1987 and the M.S. and Ph.D degrees from Cornell University in 1992 and 1994. He was a Chairman of Department of Electrical Engineering, National Taiwan University from 2016 to 2019. Currently, he is a Distinguished Professor of National Taiwan University, and director of Green Electric Energy Research Center.   His  research areas are in smart grids, electric machines and magnetic field guided endoscope.

    He receives Outstanding Young Electrical Engineer Award from the Chinese Institute of Electrical Engineering, in 2001(中國電機工程學會「優秀青年電機工程師獎」),  the Best Paper Award from the Chinese Institute of Engineers in 2002(中國工程師學會「詹天佑論文獎章」),  the Prize Paper Award from IEEE/PES Transmission and Distribution Conference and Exhibition in 2002, Research Contribution Award from National Taiwan University in 2004(國立台灣大學「研究貢獻獎」),  the First Class Principal Investigator Award from National Science Council in 2005(國科會「第一級研究計畫主持人獎」), the Distinguished Research Award from the National Science Council in 2008 , (國科會 [傑出研究獎])。and Academics Contribution Award from the college of EECS of National Taiwan University in 2013 (國立台灣大學電機資訊學院『學術貢獻獎』), Outstanding Electrical Engineering Professor Award from the Chinese Institute of Electrical Engineering in 2014(中國電機工程學會 [傑出電機工程教授獎])，and the Distinguished Research Award from the Ministry of Science and Technology in 2018, (科技部 [傑出研究獎])。He is a distinguished research fellow of the National Science and Technology Council in 2020(國科會特約研究人員). He is a Fellow of the IEEE(Institute of Electrical and Electronics Engineers, 國際電機電子工程學會會士).

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Journal articles & book chapters

1. S.Y. Yen, H.E. Huang, G.S. Lien, C.W. Liu, C.F. Chu, W. M. Huang, and F. M. Suk, “"Automatic lumen detection and magnetic alignment control for magnetic-assisted capsule colonoscope system optimization” , Scientific Reports , Vol. Vol. 11, No. 1 , pp. 1-10, 2021

2. H.-E. Huang, S.-Y. Yen, C.-F. Chu, F.-M. Suk, G.-S. Lien, and C.-W. Liu,, “Autonomous navigation of a magnetic colonoscope using force sensing and a heuristic search algorithm” , Scientific Reports , Vol. Vol. 11, No. 1 , pp. 1-15, 2021

3. F.S. Rahman, Israjuddin, N. Hariyanto, and C.W. Liu, “Swarm-based mean-variance mapping optimization for optimal placement of energy storage with synthetic inertia control on a low inertia power grid” , IET Generation, Transmission, & Distribution , Vol. no.15 , pp. 2527-2537, 2021

4. C Y Lai, C. W. Liu, “A Scheme to Mitigate Generation Trip Events by Ancillary Services Considering Minimal Actions of UFLS” , IEEE Transactions on Power Systems , Vol. Vol. 35, No. 6 , pp. 4815-4823, 2020

5. S. Y. Yen, H.E. Huang, H. C. Chen, F. W. Huang, F.M. Suk, G.S. Lien, and C.W. Liu, “A Novel Method for Locating a Magnetic Assisted Capsule Endoscope System” , IEEE Transactions on Magnetics , Vol. Vol. 56, No.10 , pp. 1-6, 2020

6. Y. J. Lee, T.C. Lin, and C.W. Liu, “Multi-terminal Nonhomogeneous Transmission Line Fault Location Utilizing Synchronized Data” , IEEE Transaction on Power Delivery , Vol. Vol. 34 , pp. 1030-1038-, Jun. 2019

7. T. C. Lin, J.Z. Yang, C. S. Yu, and C.W. Liu, “Development of a Transmission Network Fault Location Platform Based on Cloud Computing and Synchrophasors” , IEEE Transactions on Power Delivery , Vol. Vol.35, no. 1 , pp. 84-94, Jul. 2019

8. H.-Y. Su, F.-M. Kang, and C.-W. Liu, “Transmission Grid Secondary Voltage Control Using PMU data” , IEEE Transactions on Smart Grid , Vol. Vol. 9 , pp. 2908-2917-, Jul. 2018

9. Y. J. Lee, C.H. Chiao, T. C. Lin, and C. W. Liu, “A Synchrophasor-based Fault Location Method for Three-Terminal Hybrid Transmission Lines with One Off-Service Line Branch” , IEEE Transactions on Power Delivery , Vol. Vol. 33 , pp.3249-3251-, Dec. 2018

10. G.S. Lien, M.S. Wu, C.N. Chen, C.W. Liu, and F.M. Suk, “Feasibility and safety of a novel magnetic-assisted capsule endoscope system in a preliminary examination for upper gastrointestinal tract” , Surgical Endoscopy , Vol. 32:1937-1944 , 2018

11. P.-Y. Kong, C.-W. Liu, and J.-A. Jiang, “Cost Efficient Placement of Communication Connections for Transmission Line Monitoring” , IEEE Transactions on Industrial Electronics , Vol. Vol. 64 , pp. 4058-4067-, May 2017

12. H. Y. Su, and C. W. Liu, “Estimating the Voltage Stability Margin Using PMU Measurements” , IEEE Transactions on Power Systems , Vol. Vol. 31, No. 4 , pp. 3221- 3229-, Jul. 2016

13. S. P. Wang, A. Chen, C. W. Liu, C. H. Chen, J. Shortle, and J. Y. Wu, “Efficient Splitting Simulation for Blackout Analysis” , IEEE Transactions on Power Systems , Vol. Vol. 30 , pp. 1775-1783-, Jan. 2015

14. T. C Lin, P. Y. Lin, and C. W. Liu, “An Algorithm for locating Faults in Three – Terminal Multi – Section Nonhomogeneous Transmission Lines Using Synchrophasor Measurements” , IEEE Transactions on Smart Grid , Vol. Vol. 5, No. 1 , pp. 38-50-, Jan. 2014

15. C.S. Yang, C. N. Chen, F. M. Suk, C. L. Chuang, J. A. Jiang, C. W. Liu, and G. S. Lien, “Colonoscopy with Magnetic Control System to Navigate the Forepart of Colonoscope Shortens the Cecal Intubation Time” , Surgical Endoscopy , Vol. 28 , pp.2480-2483-, Jan. 2014

16. Y. T. Chou, and C. W. Liu, “An adaptive online voltage stability monitoring scheme using synchrophasors” , ELECTRA , Vol. Vol.268 , pp. 8-14-, Jan. 2013

17. W. C. Huang, Y. H. Chang, C. L. Chuang, J.A. Jiang, G.S. Lien, and C.W. Liu, “Capsule endoscope navigation using a hand-held external magnetic controller” , Transactions of Japanese Society for Medical and Biological Engineering , Vol. Vol.51 , R. 273-, 2013

18. J. T. Su, and C. W. Liu, “A Novel Phase-Shedding Control Scheme for Improved Light Load Efficiency of Multiphase Interleaved DC/DC Converters” , IEEE Transactions on Power Electronics , Vol. Vol. 28 , pp. 4742-4752-, Oct. 2013

19. H. Y. Su, and C. W. Liu, “An Adaptive PMU-Based Secondary Voltage Control Scheme” , IEEE Transactions on Smart Grid , Vol. Vol. 4, No. 3 , pp. 1514- 1522-, Sep. 2013

20. Y.T. Chou, C. W. Liu, Y.J. Wang, C. C. Wu, and C. C. Lin, “Development of a Black Start Decision Supporting System For Isolated Power Systems” , IEEE Transactions on Power Systems , Vol. Vol. 28 , pp. 2202-2210-, Aug. 2013

21. C. J. Chou, and C. W. Liu, “Assessment of Risks from Ground Fault Transfer on Closed-Loop HV Underground Distribution Systems with Cables Running in a Common Route” , IEEE Transactions on Power Delivery , Vol. Vol. 28 , pp. 1015-1023-, Apr. 2013

22. G. S. Lien, C. W. Liu, J. A. Jiang, C. L. Chuang, M.-T. Teng, “Magnetic Control System Targeted for Capsule Endoscopic Operations in the Stomach – Design, Fabrication, and in vitro and ex vivo Evaluations” , IEEE Transactions on Biomedical Engineering , Vol. Vol. 59 , pp. 2068-2079-, Jul. 2012

23. J. T. Su and C. W. Liu, “A Gain Scheduling Control Scheme for Improved Transient Response of DC/DC Converters” , IET Power Electronics , Vol. Vol. 5 , pp. 678-692-, Jun. 2012

24. L. C. Wu and C. W. Liu, “The Inrush Current Eliminator of Transformer” , Advances in Intelligent and Soft Computing , Mar. 2012

25. C. W. Liu, T.C. Lin, C. S. Yu, and J. Z. Yang, “A Fault Location Technique for Two-Terminal Multi-Section Compound Transmission Lines Using Synchronized Phasor Measurements” , IEEE Transactions on Smart Grid , Vol. Vol. 3 , pp. 113-121-, Mar. 2012

26. C.H. Lee, B. K. Chen, N. M. Chen, and C. W. Liu, “Lessons Learned from the Blackout Accident at a Nuclear Power Plant in Taiwan” , IEEE Transactions on Power Delivery , Vol. Vol. 25, No. 4 , pp. 2726-2733-, Jan. 2010

27. S. K. Wang, J. P. Chiou, and C. W. Liu,, “Parameters Tuning of Power System Stabilizers Using Improved Ant Direction Hybrid Differential Evolution” , Electrical Power and Energy Systems , Vol. Vol. 31 , pp. 34-42-, Jan. 2009

28. C.S. Lee, D. Chen, K. Huang, C.W. Liu, B. Tai, “Modeling and Design for a Novel Adaptive Voltage Positioning(AVP) Scheme for Multiphase VRMs” , IEEE Transactions on Power Electronics , Vol. Vol. 23 , pp. 1733-pp.1742-, Jul. 2008

29. C.-W. Liu, K.-P. Lien, J.-A. Jiang, C.-S. Chen, “A Universal Fault Location Technique for N-Terminal(N>=3) Transmission Lines” , IEEE Transactions on Power Delivery , Vol. Vol. 23 , pp.1366-pp.1373-, Jul. 2008

30. C.-W. Hung, C.T. Lin, C.-W. Liu, “Position Sensorless Control for Four-Switch Three-Phase Brushless DC Motor Drives” , IEEE Transactions on Power Electronics , Vol. Vol. 23, No.1 , pp. 438-444-, Jan. 2008

31. J.-Z. Yang, C.-W. Liu, W.-G. Wu, “A Hybrid Method for the Estimation of Power System Low-Frequency Oscillation Parameters” , IEEE Transactions on Power Systems , Vol. Vol. 22, No.4 , pp. 2115-2123-, Nov. 2007

32. C.W. Hung, C.T. Lin, C.W. Liu, J.Y. Yen, “A Variable Sampling Controller for Brushless DC Motor Drives with Low Resolution Position Sensors” , IEEE Transaction on Industrial Electronics , Vol. Vol. 54, No. 5 , pp.2846-2852-, Oct. 2007

33. S.K. Wang, J.P. Chiou, C.-W. Liu, “Non-Smooth/Non-Convex Economic Dispatch by a Novel Hybrid Differential Evolution Algorithm” , IET Generation, Transmission, Distribution , Vol. Vol. 1 , pp. 793-803-, Sep. 2007

34. C.-S. Chen, C.-W. Liu, and J.-A. Jiang, “Application of Combined Adaptive Fourier Filtering Technique and Fault Detector to Fast Distance Protection” , IEEE Transactions on Power Delivery , Vol. Vol.21,no.2 , pp.619-626-, Jan. 2006

35. K.-P. Lien, C.-W. Liu, C.-S. Yu, and J.-A. Jiang, “Transmission Network Fault Location Observability with Minimal PMU Placement” , IEEE Transactions on Power Delivery , Vol. Vol.21,No.3 , pp.1128-1136-, Jan. 2006

36. M. Begovic, G. Jean-Marie, G. Paulo, W. Lachs, C.W. Liu, V. Madani, D. Novosel..., “Defense plan against extreme contingencies” , CIGRE Report , Vol. TTC2, 02.24 , 2006

37. C.-W. Liu, C.-S. Chang, J.-A. Jiang, and G.-H. Yeh, “Towards a CPFLOW-Based Algorithm to Compute All the Type-1 Load Flow Solutions in Electric Power Systems” , IEEE Transactions on Circuits and Systems,-I:Regular Papers , Vol. Vol.52, No.3 , pp. 625-630-, Mar. 2005

38. Y.-J. Wang, C.-W. Liu, and Y.-H. Liu, “A PMU Based Special Protection Scheme: A Case Study of Taiwan Power System” , Electric Power & Energy Systems , Vol. Vol. 27 , pp.215-223-, Jan. 2005

39. J.-Z. Yang, C.-S. Yu, and C.-W. Liu, “A New Method for Power Signal Harmonic Analysis” , IEEE Transactions on Power Delivery , Vol. Vol.20, No.2 , pp.1235-1239-, Jan. 2005

40. Y.-H. Lin, C.-W. Liu and C.-S. Chen, “An Adaptive PMU Based Fault Detection/Location Technique for Transmission Lines With Consideration of Arcing Fault Discrimination, Part I : Theory and Algorithms” , IEEE Transactions on Power Delivery, , Vol. Vol. 19, No.4 , pp. 1587-1593-, Oct. 2004

41. Y.-H. Lin, C.-W. Liu, and C.-S. Chen, “An Adaptive PMU Based Fault Detection/Location Technique for Transmission Lines With Consideration of Arcing Fault Discrimination, Part II : Performance Evaluation” , IEEE Transaction on Power Delivery, , Vol. Vol. 19, No.4 , pp. 1594-1601-, Oct. 2004

42. C.-S. Chen, C.-W. Liu,, “Fast and Accurate Fault Detection/Location Algorithms for Double-circuit/Three-Terminal Lines Using Phasor Measurement Units”” , Journal of the Chinese Institute of Engineers , Jan. 2003

43. J.-A. Jiang, C.-S. Chen, and C.-W. Liu,, “A New Protection Scheme for Fault Detection, Direction Discrimination, Classification, and Location in Transmission Lines”” , IEEE Transaction on Power Delivery, , Vol. Vol.18, No.1 , pp.34-42,-, Jan. 2003

44. J.-A. Jiang, C.-S. Chen, and C.-W. Liu,, “Closure on A New Protection Scheme for Fault Detection, Direction Discrimination, Classification, and Location in Transmission Lines”” , IEEE Transaction on Power Delivery, , Vol. Vol.18, No.2, , pp. 653-655,-, Jan. 2003

45. C.-Y. Li and C.-W. Liu,, “A New Algorithm for Available Transfer Capability Computation”” , Electric Power & Energy Systems, , Vol. Vol. 24, , pp.159-166-, Jan. 2002

46. J.-A. Jiang, C.-W. Liu, and C.-S. Chen, “A Novel Adaptive PMU Based Transmission Line Relay-Design and EMTP Simulation Results”” , IEEE Transactions on Power Delivery, , Vol. Vol.17, No.4, , pp.930-937-, Jan. 2002

47. C.-S. Chen, C.-W. Liu, and J.-A. Jiang, “A New Adaptive PMU Based Protection Scheme for Transposed/Untransposed Parallel Transmission Lines” , IEEE Transactions on Power Delivery, , Vol. Vol.17, No.4, , pp.395-404,-, Jan. 2002

48. Y.-H. Lin, C.-W. Liu, and, C.-S. Yu “, “A New Fault Locator for Three-Terminal Transmission Line-Using Two-Terminal Synchronized Voltage and Current Phasors”” , IEEE Transactions on Power Delivery, , Vol. Vol.17, No.2, , pp.452-459-, Jan. 2002

49. C.-S. Yu, C.-W. Liu, and, S.-L. Yu, and J.-A. Jiang, “A New PMU Based Fault Location Algorithm for Series Compensated Lines” , IEEE Transactions on Power Delivery , Vol. Vol.17, No.1 , pp.33-46,-, Jan. 2002

50. C.-P. Cheng, C.-W. Liu, C.-C. Liu, “Unit Commitment by Annealing-Genetic Algorithm”” , Electric Power & Energy Systems, , Vol. Vol.24, , pp.149-158-, Jan. 2002

51. C.-S. Yu, C.-W. Liu,, “Self-correction two-machine equivalent model for stability control of FACT system using real-time phasor measurements” , IEE Proceeding, Generation, Transmission , and Distribution, , Vol. Vol.149, No.4 , pp.389-396-, Jan. 2002

52. W.-H. Chen, C.-W. Liu, and M.-S. Tsai,, “Fast Fault Section Estimation in Distribution Substations Using Matrix-Based Cause-Effect Networks”” , IEEE Transactions on Power Delivery , Vol. Vol.16, No. 4, , pp. 522-527-, Oct. 2001

53. W.-H. Chen, C.-W. Liu, and M.-S. Tsai,, “An On Line Fault Estimation in Distribution Substations Using Improved Cause-effect Networks” , Journal of the Chinese Institute of Electrical Engineering, , Vol. Vol. 8, No.3 , pp.267-277-, Jan. 2001

54. C.-S. Yu, and C.-W. Liu,, “Improved Optimal Aim Strategy Based Multiple TSSC Controllers for Transient Stability Control of Interconnected Power System”” , Journal of the Chinese Institute of Electrical Engineering , Vol. Vol. 8, No.3 , pp.241-255-, Jan. 2001

55. C.-W. Liu, C.-S. Chang and J.-A. Jiang,, “Genetic Algorithms as a Reactive Power Source Dispatching Aid for Voltage Security Enhancement” , The Proceedings of the National Science Council-Part A: Physical Science and Engineering , Vol. Vol. 25, No.1 , , pp.53-62-, Jan. 2001

56. J.-Z. Yang and C.-W. Liu,, “A Precise Calculation of Power System Frequency”” , IEEE Transactions on Power Delivery, , Vol. Vol. 16, No.3 , , pp.361-371-, Jan. 2001

57. C.-P. Cheng, C.-W. Liu, C.-C. Liu,, “Closure to Discussion of Unit Commitment by LaGrangian Relaxation and Genetic algorithms”” , IEEE Transactions on Power Systems, , Vol. Vol.16, No.4 , PP.939-, Jan. 2001

58. M.-C. Su, E. Lai, C.-Y. Tew, C.-W. Liu, and C.-S. Chang,, “Application of SOM-Based Fuzzy Systems in Voltage Security Margin Estimation” , Journal of Advanced Computational Intelligence , Vol. Vol.5, No.3 , pp.157-162-, Jan. 2001

59. T.-M. Too, J.-A. Jiang, J.-Z. Yang, Y.-H. Lin and C.-W. Liu, “Design, Implementation and Field Tests for Performance Evaluations of a Brand- new Phasor Measurement Unit Based on Global Positioning System” , Journal of the Chinese Institute of Electrical Engineering , Vol. Vol. 8, No.2 , pp.103-118-, Jan. 2001

60. C.P. Cheng, C.W. Liu, C.C. Liu, “Unit Commitment by LaGrangian Relaxation/Genetic Algorithm” , IEEE Transactions on Power Systems , Vol. Vol.15 , pp.707-714-, May 2000

61. C.-J. Chou, C.-W. Liu, J.-Y. Lee and K.-D. Lee,, “Optimal Planning of Large Passive-Harmonic-Filters Set at High Voltage Level” , , IEEE Transactions on Power System, , Vol. Vol. 15, No.1 , pp.433-441,-, Jan. 2000

62. C.-W. Liu and J. Thorp, “New Methods for Computing Power System Dynamic Response for Real-Time Transient Stability Prediction” , IEEE Transaction on Circuits and Systems, Part I, Fundamental Theory and Application, , Vol. Vol. 47 , No.3 , pp.324-3-, Jan. 2000

63. J.-A. Jiang, J.-Z. Yang, Y.-H. Lin, C.-W. Liu and J.-C. Ma,, “An Adaptive PMU Based Fault Detection/Location Technique for Transmission Lines Part I : Theory and Algorithms” , IEEE Transactions on Power Delivery, , Vol. Vol. 15, No.2 , pp.486-493-, Jan. 2000

64. J.-A. Jiang, Y.-H. Lin, J.-Z. Yang, T.-M. Too and C.-W. Liu,, “An Adaptive PMU Based Fault Detection/Location Technique for Transmission Lines Part II : PMU Implementation and Performance Evaluation” , IEEE Transaction on Power Delivery, , Vol. Vol. 15, No.4 , pp.1136-1146,-, Jan. 2000

65. J.-Z.Yang and C.-W. Liu,, “A Precise Calculation of Power System Frequency and Phasor” , IEEE Transaction on Power Delivery, , Vol. Vol. 15, No.2 , pp.494-499-, Jan. 2000

66. W.-H Chen , C.-W. Liu and M.-S. Tsai,, “On-Line Fault Diagnosis of Distribution Substations Using Hybrid Cause-Effect Network and Fuzzy Rule-Based Method” , IEEE Transaction on Power Delivery, , Vol. Vol. 15, No.2 , , pp.710-717-, Jan. 2000

67. J.-Z. Yang and C.-W. Liu, “Closure to Discussion of A Precise Calculation of Power System Frequency”” , IEEE Transactions on Power Delivery, , Vol. Vol.15, No.4, , PP.1320-, Jan. 2000

68. M.-C. Su, C.-W. Liu and C.-S. Chang,, “Rule Extraction for Voltage Security Margin Estimation” , IEEE Transactions on Industrial Electronics, , Vol. pp. 1114-1122 , Dec. 1999

69. M. -C. Su, C.-W. Liu and S.-S. Tsay,, “Neural-Network-Based Fuzzy Model and its Application to Transient Stability Prediction in Power Systems” , IEEE Transaction on Systems, Man, Cybernetics Part C, Application and reviews , Vol. Vol. 29, , pp. 149-157-, Feb. 1999

70. W.-S. Jwo, C.-W. Liu and C.-C. Liu, “Large-Scale Optimal VAR Planning by Hybrid Simulated Annealing/Genetic Algorithm” , Electrical Power & Energy System, , Vol. Vol. 21, , pp. 39-44,-, Jan. 1999

71. C.-W. Liu, M.-C. Su, S.-S. Tsay and Y.-J. Wang,, “Application of a Novel Fuzzy-Neural Network to Real Time Transient Stability Swings Prediction Based on Synchronized Phasor Measurements” , IEEE Transactions on Power Systems, , Vol. Vol.14, No. 2 , pp. 685-692-, Jan. 1999

72. C. W. Liu, C.S.Chang, M.C.Su, “Neuro-Fuzzy Networks for Voltage Security Monitoring Based on Synchronized Phasor Measurements” , IEEE Transactions on Power Systems , Vol. Vol.13 , pp.326-332-, May 1998

73. C.W. Liu, J. Thorp, “A Novel Method to Compute the Closest Unstable Equilibrium Point for Transient Stability Region Estimate in Power Systems” , IEEE Transactions on Circuits and Systems , Vol. Vol.44 , pp.630-635-, Jul. 1997

74. C.W. Liu, W.S. Jwo, C.C. Liu, Y.T. Hsiao, “A Fast Global Optimization Approach to VAR Planning for the Large Scale Electric Power Systems” , IEEE Transactions on Power Systems , Vol. Vol.12 , pp.437-444-, Feb. 1997

75. S. Rovnyak, C.W. Liu, J. Lu, W. Ma, J. Thorp, “Predicting Future Behavior of Transient Events Rapidly Enough to Evaluate Remedial Control Options in Real-Time” , IEEE Transactions on Power Systems , Vol. Vol.10 , pp.1195-1203-, Aug. 1995

76. J. Lu, C.W. Liu, J. Thorp, “New Methods for Computing a Saddle-Node Bifurcation Point for Voltage Stability Analysis” , IEEE Transactions on Power Systems , Vol. Vol.10 , pp.978-985-, May 1995

77. C.W. Liu, J. Thorp, “An Application of Synchronized Phasor Measurements to Real-Time Transient Stability Prediction” , IEE Proceeding, Part C , Vol. Vol.42 , pp.355-360-, Jan. 1995

78. W.S. Jwo, C.W. Liu, C.C. Liu, Y.T. Hsiao, “A Hybrid Expert System and Simulated Annealing Approach to Optimal Reactive Power Planning” , IEE Proceeding, Part C. , pp.355-360-, Jan. 1995

79. J.S. Thorp, S. Rovnyak and C.-W. Liu, “Application of Real-Time Phasor Measurements in Power System Control” , IMA volumes in Mathematics and its Applications , Vol. Vol. 64 , pp.361-379-, Jan. 1995

80. C.W. Liu, J. Thorp, J. Lu, R.J. Thomas, H.D. Chiang, “Detection of Transiently Chaotic Swings in Power Systems Using Real-Time Phasor Measurements” , IEEE Transactions on Power Systems , Vol. Vol. 9 , pp.1285-1292-, Aug. 1994

81. H.D. Chiang, C.W. Liu, P.P. Varaiya, F.F. Wu, M.G. Lauby, “Chaos in a Simple Power System” , IEEE Transactions on Power Systems , Vol. Vol.8 , pp.1407-1417-, Nov. 1993

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Conference & proceeding papers:

1. S.P. Wang, Chen, A., C.W. Liu, C.H. Chen, Shortle, J, “Rare-event splitting simulation for analysis of power system blackouts” , IEEE Power and Energy Society General Meeting , Jan. 2011

2. J.T. Su, C.W. Hung, T.H. Chang, C.W. Liu, “A novel phase shedding scheme for improved light load efficiency of Interleaved DC/DC converters” , IEEE Applied Power Electronics Conference and Exposition (APEC) , Jan. 2011

3. J.T. Su, C.W. Liu, “Proposed digital control scheme for improved current share of multiphase DC/DC converters” , Power Electronics and ECCE Asia (ICPE & ECCE), International Conference , Jan. 2011

4. J.T. Su, C.W. Liu, D.M. Liu, “Adaptive control scheme for interleaved DC/DC power converters” , IEEE Power Electronics International Conference , Jan. 2010

5. C.W. Hung, J.T. Su, C.W. Liu, C.T. Lin, J.H. Chen, “Fuzzy gain scheduling PI controller for a sensorless four switch three phase BLDC motor” , IEEE Applied Power Electronics Conference and Exposition (APEC) , Jan. 2010

6. J.T. Su, D.M. Liu, C.W. Liu, C.W. Hung, “An adaptive control method for two-phase DC/DC converter” , Power Electronics and Drive Systems International Conference , Jan. 2009

7. G.S. Lien, C.W. Liu, M.T. Teng, Y.M. Huang, “Integration of two optical image modules and locomotion functions in capsule endoscope applications” , IEEE Consumer Electronics International Symposium , Jan. 2009

8. J.Z. Yang, C.W. Liu, W.G. Wu, “A hybrid method for the estimation of power system low-frequency oscillation parameters” , IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century , Jan. 2008

9. L.C. Wu, C.W. Liu, “A Mal-Trip of Bus Relay Due to Visible Light” , IEEE Industry Applications Society Annual Meeting , Jan. 2008

10. S.E. Chien, I.A. Cherng, C.W. Liu, “Automation of Look-Up Tables for System Integrity Protection Systems in Taiwan Power System” , Secure System Integration and Reliability Improvement International Conference , pp.228 - 229 , Jan. 2008

11. Y.F. Hung, C.W. Liu, Konishi.Y, “Soft-switching PWM full-bridge DC-DC converter with energy recovery transformer and auxiliary passive lossless snubbers” , Telecommunications Energy International Conference , Jan. 2007

12. C.W. Hung, C.T. Lin, C.W. Liu, “An Efficient Simulation Technique for the Variable Sampling Effect of BLDC Motor Applications” , IEEE Industrial Electronics Society Annual Conference, 2007 , Jan. 2007

13. C.T. Lin, C.W. Hung C.W. Liu, “Fuzzy PI Controller for BLDC motors Considering Variable Sampling Effect” , IEEE Industrial Electronics Society Annual Conference , Jan. 2007

14. M. Lee, D. Chen, C.W. Liu, “Compensator Design for Adaptive Voltage Positioning(AVP) for Multiphase VRMs” , IEEE Power Electronics Specialist Conference , Korea , Jan. 2006

15. C.T. Lin, C.W. Hung, C.W. Liu, “Sensorless Control for Four-Switch Three-Phase Brushless DC Motor Drives” , IEEE Industrial Application Annual Meeting , Jan. 2006

16. J.Z. Yang, C.W. Liu, “An Effective Method for Power System Frequency Estimation” , IEEE Power Annual Meeting , Jan. 2005

17. P.H. Liu, D.Y. Chen, C.W. Liu, F.Y. Wu, “Simulation and Analysis of Conducted EMI for a Commercial DC/DC Power Module” , Taiwan Power Electronics Simposium , Jan. 2005

18. C.W. Liu, W.C. Lin, “DSP BasedMinimum Input Power Control of Induction Motor” , Taiwan Power Electronics Symposium , Jan. 2004

19. J.Z. Yang, C.W. Liu, “A New Algorithm for Power System Signal Processing” , IEEE Power Annual Meeting , Jan. 2004

20. Ching-Shan Chen, Fan-Ren Chang, Chih-Wen Liu, Joe-air Jiang, Chi-Shan Yu,, “A New Adaptive Relaying Scheme for Transmission Protection Based on Phasor Measurement Units”” , Power and Energy System, Proceedings of the IASTED international Conference. , Jan. 2002

21. Chi-Shan Yu, Chih-Wen Liu, Jun-Zhe Yang, Joe-Air Jiang,”, “New Fourier filter algorithm for series compensated transmission lines”” , Power System Technology. Proceedings. PowerCon 2002. International Conference , Jan. 2002

22. Ching-Shan Chen, Chih-Wen Liu, Joe-Air Jiang,, “Three-terminal transmission line protection using synchronized voltage and current phasor measurements”” , IEEE/PES Transmission and Distribution Conference and Exhibition 2002: , Jan. 2002

23. Ying-Hong Lin, Chih-Wen Liu,, “A new dft-based phasor computation algorithm for transmission line digital protection”” , IEEE/PES Transmission and Distribution Conference and Exhibition 2002: , Jan. 2002

24. Joe-Air Jiang, Ching-Shan Chen, Ping-Lin Fan, Chih-Wen Liu, Rong-Seng Chang,, “A composite index to adaptively perform fault detection, classification, and direction discrimination for transmission lines”” , IEEE Power Engineering Society Winter Meeting, , Jan. 2002

25. Chih-Wen Liu,, “Phasor Measurement Applications in Taiwan”” , IEEE T&D Conference, Japan-Panel Session on Wide Area Measurements in Power Systems, , Jan. 2002

26. Wen-Hui Chen, Men-Shen Tsai, Chih-Wen Liu,, “Fuzzy Rule-Based Method in Fault Type Identification”” , Intelligent System Application to Power Systems, Proceedings of the International Conference , Jan. 2001

27. J.-Y. Yang and C.-W. Liu,, “Complete Elimination of DC offset in Current Signals for Relaying Applications” , IEEE PES Winter Meeting , Singapore , Jan. 2000

28. Ying-Hong Lin, Chih-Wen Liu, Joe-Air Jiang, Jun-Zhe Yang,, “An Adaptive Fault Locator for Transmission Lines Tapped With a Source of Generation – Using Synchronized Voltage and Current Phasors”” , IEEE Power Engineering Society Summer Meeting, , Jan. 2000

29. Chi-Shan Yu, Chih-Wen Liu, Joe-Air Jiang,, “A New Fault Location Algorithm for Series Compensated Lines Using Synchronized Phasor Measurements” , IEEE Power Engineering Society Summer Meeting, , Jan. 2000

30. Jun-Zhe Yang, Chih-Wen Liu,, “A New Family of Measurement Technique for Tracking Voltage Phasor, Local System Frequency, Harmonics and DC Offset”” , IEEE Power Engineering Society Summer Meeting, , Jan. 2000

31. Chong-Yih Li, Chih-Wen Liu,, “The Stability Analysis of The Strategic Transaction in a Deregulation Environment” , IEEE Power Engineering Society Summer Meeting, , Jan. 2000

32. Yi-Jen Wang, Chih-Wen Liu, Len-Dar Sue, Wen-Kuang Liu, “A Remedial Control Scheme Protects Against Transient Instabilities Based on Phasor Measurement Units (PMUs) – A Case Study”” , IEEE Power Engineering Society Summer Meeting, , Jan. 2000

33. Wen-Hui Chen, Chih-Wen Liu, Men-Shen Tsai, “, “Fault Diagnosis in Distribution Substations Using CE-nets via Boolean Rule Matrix Transformations”” , IEEE Power Engineering Society Summer Meeting , Jan. 2000

34. C.-S. Yu and C.-W. Liu, “A Practical Design of TCSC Controller for the inter-area Transient Stability Control Using Real-Time Measurements” , IEEE PES 99 Winter Meeting, , New York,USA , Jan. 1999

35. J.-Y. Yang and C.-W. Liu,, “A Smart Method Makes DFT More Precise for Power System Frequency Estimation” , IEEE PES 99 Winter Meeting, , New York, , Jan. 1999

36. J.-A. Jiang ,Y.-H. Lin, C.-W. Liu, J.-Z. Yang and T.-M. Too,, “An Adaptive Fault Locator System for Transmission Lines” , IEEE PES 99 Summer Meeting, , Canada , Jan. 1999

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Patents:

1. Chih-Wen Liu, R-Shin Tzeng, and Gi-Shih Lien, “Endoscope and Magnetic Field Control Method” , US 8556802 B2, Oct. 2013

2. 劉志文 ，曾日新，連吉時, “內視鏡裝置及其磁場控制方法” , 中華民國發明第I342199號, May 2011

3. Chih-Wen Liu, Gi-Shih Lien, Tai-Yuan Huang, and Shin-Chang Chen, “A Magnetically Levitated Capsule Endoscope and Its Control Method” , 中華民國發明專利 發明第 I286926號, Sep. 2007

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