Ningyi DAI  戴寧怡
Associate Professor

Academic Qualifications | Professional Experience | Teaching | Research | Professional Affiliations | Award | Patents | Publications | Services | Contact Details

Academic Qualifications
Professional Experience
Teaching

B.Sc. Courses

  1. Power Quality and Energy Saving (ECEB356)
  2. Design Project I (ECEB410)
  3. Design Project II (ECEB420)

M.Sc. Courses

  1. Digital Signal Processing (ELCE705)
  2. Introduction to Research (ELCE701)
  3. Electrochemical Energy Conversion and Storage (ELCE724)

Research

Research Interests

Research Projects


Professional Affiliations
Award
Patents
Publications

Published/Accepted journal papers:

  1. Lam, C. S., Wong, M. C., Dai, N. Y., Choi, W. H., Cui, X. X., Chung, C. Y. “A switching loss reduction technique in active power filters without auxiliary circuits.” IET Power Electronics. (Accepted). (SCI, Q2, Impact factor: 1.683)
  2. Lao, K. W., Wong, M. C., Dai, N. Y., Wong, C. K., Lam, C. S. “Analysis of DC link operation voltage of a hybrid railway power quality conditioner and its PQ compensation capability in high speed co-phase traction power supply.” IEEE Trans. on Power Electronics, 31.2 (2016):1643-1656. Print. (SCI, Q1, Impact factor: 6.008)
  3. Hua, W., Hua, H., Dai, N. Y., Zhao, G. S., Cheng, M., “Comparative Study of Switched Reluctance Machines with Half- and Full-Teeth-Wound Windings”, IEEE Trans. Industrial Electronics, 63.3(2016):1414-1424. Print. (SCI, Q1, Impact factor: 6.498)
  4. Shao, L. Y., Hua, W., Dai, N. Y., Tong, M. H., Cheng, M. “Mathematical modeling of a twelve-phase flux-switching permanent magnet machine for wind power generation.” IEEE Trans. Industrial Electronics. 63.1(2016):504-516.Print. (SCI, Q1, Impact factor: 6.498)
  5. Wang, B. A., Shang, J., Dai, N. Y., Chen H. “Harmonic reference currents balancing method for a delta-connected Static synchronous compensator.” Electronics Letters,51.25(2015):2134-2135. Print. (SCI, Q3, Impact factor: 0.930)
  6. Zeng, W. L., Lam, C. S., Zheng, W. M., Sin, S. W., Dai, N. Y., Wong, M. C., U., S. P., Martins, R. “DCM operation analysis of KY converter”, Electronics Letters, 51.24(2015): 2037-2038.. (SCI, Q3, Impact factor: 0.930)
  7. Dai, N. Y.,Lao, K. W., Lam, C. S. "Hybrid Railway Power Conditioner with Partial Compensation for Converter Rating Reduction."IEEE Trans. Ind. Applica., 51.5 (2015): 4130-4138. Print. (SCI, Q1, Impact factor: 1.756)
  8. Wong, M. C., Yang, Y. Z., Lam, C. S., Choi, W. H., Dai, N. Y., Wu, Y. J., Wong, C. K., Sin, S. W., Chio, U. F., U, S. P., Martins, R.P.. “Self-reconfiguration property of a mixed signal controller for improving power quality compensation during light loading.” IEEE Trans. Power Electronics, 30.10 (2015): 5938-5951. Print. (SCI, Q1, Impact factor: 6.008)
  9. Dai, N. Y., Zhang, W. C., Wong, M. C., Guerrero, J. M., Lam, C. S. “Analysis, control and experimental verification of a single-phase capacitive-coupling grid connected inverter.” IET Power Electronics, 8.5 (2015):  770-782. Print. (SCI, Q2, Impact factor: 1.683)
  10. Lao, K. W., Wong, M. C., Dai, N. Y., Wong, C. K., Lam, C. S. “A systematic approach to hybrid railway power conditioner design with harmonic compensation for high-speed railway.” IEEE Trans.Industrial Electronics, 62.2 (2015): 930-942. Print. (SCI, Q1, Impact factor: 6.498)
  11. Wang, L., Lam, C. S., Wong, M. C., Dai, N. Y., Lao, K.W., Wong, C.K. “Non-Linear adaptive hysteresis band pwm control for hybrid active power filters in reducing switching loss.”  IET Power Electronics, 8.11(2015): 2156-2167. Print. (SCI, Q2, Impact factor: 1.683)
  12. Dai, N. Y., Lam, C. S., Zhang, W. C. “Multifunctional Voltage Source Inverter for Renewable Energy Integration and Power Quality Conditioning.”, The Scientific World Journal, Article ID 421628, 10 pages (2014). ( SCI, Q2, Impact factor:1.219 )
  13. Dai, N. Y., Wong, M. C., Lao, K. W., Wong, C.K. “Modelling and control of a railway power conditioner in co-phase traction power system under partial compensation.” IET Power Electronics, 7.5 (2014): 1044-1054. Print. (SCI, Q2, Impact factor: 1.683)
  14. Lao, K. W., Dai, N. Y., Liu, W. G., Wong, M. C. “Hybrid power quality compensator with minimum DC operation voltage design for high speed traction power systems.” IEEE Trans. Power Electronics, 28.4 (2013):  2024-2036. Print. (SCI, Q1, Impact factor: 6.008)
  15. Dai, N. Y., Lao, K. W., Wong, M. C., Wong, C.K. “Hybrid Power Quality Conditioner for Co-phase Power Supply System in Electrified Railway.” IET Power Electronics, 5.7 (2012): 1084-1094. Print. (SCI, Q2, Impact factor: 1.683)
  16. Lok, I. K., Dai, N. Y., Wong, M. C. “A Three-Level Soft-Switching Active Power Filter with DC Self-Balancing Capability.” International Review of Electrical Engineering - IREE, 29.4 (2011): 2883-2893. Print. (SCI, Q2, Impact factor: 1.364)
  17. Dai, N. Y., Wong, M. C., Ng, F., Han, Y. D. “A FPGA-based Generalized Pulse Width Modulator for Three-leg Centre-split and Four-leg Voltage Source Inverters.” IEEE Trans. Power Electronics, 23.3 (2008): 1472-1484. Print. (SCI, Q1, Impact factor: 6.008)
  18. Lok, I. K., Dai, N. Y., Wong, M. C. “A novel soft-switching three-level inverter with self DC voltage balance capability.” Journal in Advanced Technology of Electrical Engineering and Energy, 29.4 (2010): 31-34. Print.
  19. Dai, N. Y., Wong, M. C., Han, Y. D. “Application of a Three-level NPC Inverter as a 3-Phase 4-Wire Power Quality Compensator by Generalized 3DSVM.” IEEE Trans. Power Electronics, 21.2 (2006): 440-449. Print. (SCI, Q1, Impact factor: 6.008)
  20. Dai, N. Y., Wong, M. C., Chen, Y. H., Han, Y. D. “A 3D Generalized Direct PWM Algorithm for Multilevel Converters.” IEEE Power Electronics Letters (EI, 3.3 (2005): 85-88. Print.
  21. Lam, C. S., Dai, N. Y., Wong, M. C., Han, Y. D. “Unbalanced Voltage Swell and Over-voltage Control in Dynamic Voltage Restorer.” Power System Automation, 29 .20 (2005): 35-39. Print.
  22. Dai, N. Y., Wong, M. C., Han, Y. D. “3-Dimensional Space Vector Modulation with d.c. voltage variation control in 3-leg center-split power quality compensator.” IEE Proc.-Electr. Power Appl. 151.2 (2004): 198-204. Print. (SCI, Q2, Impact factor:1.255)
  23. Dai, N. Y., Wong, M. C., Tang, J., Han, Y. D. “3-Dimensional Space Vector Modulation in 3-Leg Center-Split Structure Inverter as Power Quality Compensator for 3-Phase 4-Wire System.” Power System Automation, 27.17 (2003): 45-49. Print.
  24. Dai, N. Y., Wong, M. C., Han, Y. D. “Novel 3DSVM for shunt power quality compensator in three-phase four-wire system.” Electrical Equipment Automation, 23.6 (2003): 16-20. Print.

Chapter in Book

Wong, M. C., Dai, N. Y., Chapter 3: Active Filters. InParallel Power Electronics Filters in Three-Phase Four-Wire Systems: Principle, Control and Design,135 pages.   (Accepted for publication by Springer)

Conference papers:

  1. Sheng, J. J., Dai, N. Y., Wong, M. C., Lam, C. S., Lao, K. W.  "Droop-Boost Control for Single-Phase Hybrid Power Filter." Proceedings of the TENCON2015, Macau, 1-4 Nov. 2015. IEEE, 2015.1-6.
  2. Wang, B. A., Shang, J.J., Chen, H., Liu, L., Dai, N. Y.. "Reduction of Converter Rating for a Delta-Connected STATCOM by Optimizing Phase Harmonic References." Proceedings of the TENCON2015, Macau, 1-4 Nov. 2015. IEEE, 2015. 1-6.
  3. Wang, B. A., Shang, J.J., Chen, H., Dai, N. Y.. “Steinmetz Theory Applied to Fundamental Phase Reference Current Calculation for a STATCOM with Delta Configuration.” Proceedings of the TENCON2015, Macau, 1-4 Nov. 2015. IEEE, 2015.1-6.
  4. Ye, T., Dai, N. Y., Lam, C. S., Wong, M. C., Guerrero, J. M. “Analysis, design and implementation of a quasi-proportional-resonant controller for multifunctional capacitive-coupling grid-connected inverter.” Proceedings of the ECCE 2015, Montreal, 20-24 September 2015. IEEE, 2015. 2506-2513.
  5. Zheng, C. P., Dai, N. Y., Wong, M. C., Wong, C. K., Zhu M.. "Adaptive DC Voltage Control for Single-phase Hybrid Filter with PV Integration Capability." Proc. of ICPE-ECCE Asia 2015, Seoul, 1-5 June 2015. IEEE, 2015. 2011-2017.
  6. Jaskulke, M., Zhu, M., Dai, N. Y., Cai, X. “Novel single phase dynamic voltage restorer based on dc-modulation ac-ac technique.” Proc. of 10th Conference on Industrial Electronics and Applications, ICIEA 2015,Auckland, 16-18 June 2015. IEEE, 2015.
  7. Dai, N. Y., Lao, K. W., Lam, C. S. "Hybrid railway power conditioner with partial compensation for rating optimization." Proc. of IEEE Energy Conversion Congress and Exposition, ECCE 2014, Pittsburgh, PA, 14-18 Sept. 2014. IEEE, 2014. 5908-5915.
  8. Zhao, Y., Dai, N. Y., Wang, B. A. "Application of three-phase modular multilevel converter (MMC) in co-phase traction power supply system."  Proc. of IEEE Transportation Electrification Conference and Expo (ITEC) Asia-Pacific  2014, Beijing, P. R. China, Aug. 31 - Sep. 03, 2014. IEEE, 2014. 1-6.
  9. Chen, G., Zhang, J. W., Zhu, M., Dai, N. Y., Cai, X. "Adaptive thermal control for power fluctuation to improve lifetime of IGBTs in multi-MW medium voltage wind power converter." Proc. of International power electronics conference, IPEC-Hiroshima 2014, ECCE Asia 2014. Hiroshima, 18-21 May 2014. IEEE, 2014. 1496-1500.
  10. Chen, G., Zhang, J. W., Zhu, M., Dai, N. Y., Cai, X. "Optimized design for multi-MW wind power converter based on efficiency and reliability." Proc. of International power electronics conference, IPEC-Hiroshima 2014, ECCE Asia 2014. Hiroshima, 18-21 May 2014. IEEE, 2014. 1769-1774.
  11. Zheng, C. P., Dai, N. Y., Wong, M. C., Wong, C. K., Zhu M. "Capacitive-coupling inverter for PV integration: analysis and implementation." Proc. of 9th Conference on Industrial Electronics and Applications, ICIEA 2014, Hangzhou, 9-11 June 2014. IEEE, 2014. 666-671.
  12. Zhang, B., Lok, I. K., Dai, N. Y., Wong, M. C., Wong, C. K. “Three-level hybrid active power filter with quasi-resonant DC-link technique in three-phase four-wire system.” Proc. of 1st International Future Energy Electronics Conference (IFEEC), Tainan, 3-6 Nov. 2013. IEEE,2013. 52-57.
  13. Lao, K. W., Wong, M. C., Dai, N. Y., Wong, C. K. “Design of LCL filter for harmonic suppression in co-phase railway power quality conditioner.” Proc. of 1st International Future Energy Electronics Conference (IFEEC), Tainan, 3-6 Nov. 2013. IEEE, 2013. 794-799.
  14. Dai, N. Y., Lao, K. W., Wong, M. C. “A hybrid railway power conditioner for traction power supply system.” Proc. of 28th Annual IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA, 17-21 March 2013. IEEE, 2013. 1326-1331.
  15. Zhang, W. C., Dai, N. Y., Wong, M. C., Wong, C. K. “Capacitive-coupled   grid-connected inverter with active power injection ability.” Proc. of 7th International Power Electronics and Motion Control Conference, IPEMC 2012, Harbin, China, 2-6 June 2012. IEEE, 2012. pp. 1639-1645.
  16. Lao, K. W., Dai, N. Y., Liu, W. G., Wong, M. C. “Modeling and control of railway static power conditioner compensation based on power quality standards.” Proc. of 13th Workshop on Control Modeling for Power Electronics, COMPEL 2012, Kyoto, 10-13 June 2012. IEEE, 2012. 1-6.             
  17. Wen, X., Dai, N. Y., Wong, M. C., Wong, C. K. “Hybrid cascaded multilevel converter for medium-voltage large-capacity applications.” Proc. of 2011 Annual IEEE India Conference, INDICON, Hyderabad, 16-18 Dec. 2011. IEEE, 2011. pp. 1-6.      
  18. Sun, B., Chio, U.F., Lam, C. S., Dai, N. Y., Wong, M. C., Wong, C. K., Sin, S. W., U, S. P., Martins, R. P. . “A FPGA-Based Power Electronics Controller for Hybrid Active Power Filters.” Proc. of 6th IEEE Conference on Industrial Electronics and Applications, ICIEA2011, Beijing, China, 21-23 Jun. 2011. IEEE, 2011. 25-28.        
  19. Dai, N. Y., Wong, M. C. “Design considerations of coupling inductance for active power filters.” The 6th IEEE Conference on Industrial Electronics and Applications (ICIEA2011), Beijing, China, Jun. 2011, pp. 1370-1375.        
  20. Sun, B., Dai, N. Y., Chio, U.F., Wong, M. C., Wong, C. K., Sin, S. W., U, S. P., Martins, R. P. “FPGA-based decoupled double synchronous reference frame PLL for active power filters.” Proc. of 6th IEEE Conference on Industrial Electronics and Applications, ICIEA2011, Beijing, China, 21-23 Jun. 2011. IEEE, 2011. 2145-2150.                 
  21. Cui, X. X., Lam, C. S., Dai, N. Y., Choi, W. H., Wong, M. C. “Study on DC voltage control of hybrid active power filters.” Proc. of 6th IEEE Conference on Industrial Electronics and Applications, ICIEA2011, Beijing, China, 21-23 Jun. 2011. IEEE, 2011.856 – 861.        
  22. Wong, M. C., Lam, C. S., Dai, N. Y. “Comparisons of structure topologies for hybrid filters.” Proc. of 43rd International Universities Power Engineering Conference, UPEC 2008, Padova, Italy, 1-4 Sept. 2008. IEEE, 2008. 1-5.
  23. Dai, N. Y., Lam, C. S., Wong, M. C., Han, Y. D. “Application of 3D direct PWM in parallel power quality compensators in three-phase four-wire systems.” Proc. of IEEE Power Electronics Specialists Conf., PESC 2008, Rhodes, 15-19 June 2008. IEEE, 2008. 3220-3225.
  24. Le, J., Dai, N. Y., Ruan, J. J. “The analysis of hysteresis current control strategy of three-phase four-wire shunt APF based on the unified topology.” Proc. of 2nd Conference on Industrial Electronics and Application, ICIEA 2007, Harbin, China, 23-25 May 2007. IEEE, 2007. 575-580.
  25. Dai, N. Y., Wong, M. C., Han, Y. D. “Comparison Study of Three-phase Four-wire Active Power Filters.” Proc. of RIUPEEEC2006, Macau, China, 2-4 July 2006.
  26. Dai, N. Y., Wong, M. C., Han, Y. D., Lam, C. S. “A 3-D Generalized Direct PWM for 3-Phase 4-Wire APFs.” Proc. of Industry Application Conference 40th Annual Meeting, 2005, Hong Kong, China, 2-6 Oct. 2005. IEEE, 2005. 1261-1266.
  27. Dai, N. Y., Tai, S. U., Wong, M. C., Han, Y. D. “Parallel power quality compensation in modern buildings.” Proc. of First International Conference on Power Electronics Systems and Applications, 2004, Hong Kong, China, 9-11 Nov. 2004. IEEE, 2004. 54-60.
  28. Dai, N. Y., Wong, M. C., Han, Y. D. “3DSVM with dc Imbalance Consideration in 3-leg Center-Split Power Quality Compensator.” Proc. of 4th International Power Electronics and Motion Control Conference, IPEMC 2004, Xi'an, China, 14-16 Aug.2004. IEEE, 2004. 1362-1367. 
  29. Wong, M. C., Dai, N. Y., Han, Y. D. “Theoretical Study of 3 Dimensional Hysteresis PWM Techniques.” Proc. of 4th International Power Electronics and Motion Control Conference, IPEMC 2004, Xi'an, China, 14-16 Aug.2004. IEEE, 2004. 1635-1640.
  30. Dai, N. Y., Wong, M. C., Han, Y. D. “Controlling Tri-level Center-Split Power Quality Compensator by 3-Dimensional Space Vector Modulation.” Proc. of Fifth International Conference on Power Electronics and Drive Systems, PEDS 2003, Singapore, 17-20 Nov. 2003. IEEE, 2003.1692-1697.
  31. Wong, M. C., Dai, N. Y., Han, Y. D. “Study of Tri-level Neutral Point Clamped Inverter for 3-phase 3-wire and 3-phase 4-wire applications.” Proc. of Fifth International Conference on Power Electronics and Drive Systems, PEDS 2003, Singapore, 17-20 Nov. 2003. IEEE, 2003. 380-385.
  32. Wong, M. C., Tang, J., Dai, N. Y., Han, Y. D. “Fundamental study of 3 dimensional pulse width modulation.” Proc. of  International Conference on Power System Technology, PowerCon 2002, KunMing, P. R. China, 13-17 Oct. 2002. IEEE, 2002. 560 -564.

Services

Professional Services

Reviewer for Journals

  1. IET Power Electronics
  2. IET Electrical Systems in Transportation
  3. IEEE Trans. on Power Electronics
  4. IEEE Trans. on Industry Electronics
  5. IEEE Trans. on Smart Grid
  6. IET Generation, Transmission & Distribution
  7. IEEE Transactions on Sustainable Energy
  8. IEEE Transactions on Vehicular Technology

Reviewer for Conference (2015)

  1. IEEE Conference on Industrial Electronics and Applications (ICIEA )
  2. IEEE Energy Conversion Congress & Expo (ECCE)
  3. IEEE International Future Energy Electronics Conference (IFEEC)
  4. IEEE TENCON 2015
  5. WIECON-ECE 2015

Conference Organization and Session Chair

  1. 2015 International Workshop on Future Power Systems and Emerging Technology, Co-Chair
  2. Technical Program Committee of IEEE International Women in Engineering (WIE) Conference on Electrical and Computer Engineering 2015 (WIECON-ECE 2015) , 2015
  3. Session chair of IEEE TENCON 2015
  4. Member of the International Advisory Committee DRPT2011, 2010
  5. Session Chair of IEEE Asia Pacific Conference on Circuits and Systems, 2008

University Services

Community Services

  1. IEEE Macau Women in Engineering Affinity Group (2014-2015), Chair
  2. Judge of IEEE Macau Student Project Competition 2015
  3. Assistant Programme coordinator for in-house training for CEM, 2012
  4. Instructor for wind-generation technology study summer camp, 2009
  5. Women in Engineering (WIE) officer of IEEE Macau

Contact Details

Faculty of Science and Technology
University of Macau, E11
Avenida da Universidade, Taipa,
Macau, China

Room: E11-3050
Telephone: (853) 8822-8026
Fax: (853) 8822-2426
Email: nydai