Carl (Ngai Man) Ho, Ph.D.

Associate Professor

Department of Electrical and Computer Engineering

Canada Research Chair

Canada Research Chair in Efficient Utilization of Electric Power

List of Publications (last 5 years at UofM)

Full Publication list              Papers in Google Scholar                     Manitoba renewable energy data,  measured by the RIGA Lab. Website.

 

2020

1. K. Siu, and C. Ho, “Manitoba Rectifier - Bridgeless Buck-Boost PFC”, IEEE Trans. on Power Electronics, vol. 35, no. 1, pp. 403 - 414, Jan. 2020.

2. K. Siu, C. Ho, and R. Li, “A Four-Quadrant Single-Phase Grid-Connected Converter with only Two High Frequency Switches”, IEEE Trans. on Industrial Electronics, vol. 67, no. 3, pp. 1899-1909, Mar. 2020.

3. Y. Xu, C. Ho, A. Ghosh, and D. Muthumuni “An Electrical Transient Model of IGBT-Diode Switching Cell for Power Semiconductor Loss Estimation in Electromagnetic Transient Simulation”, IEEE Trans. on Power Electronics, (Early Access)

4. R. Abdalaal and C. Ho, “Characterization of Commercial LED Lamps for Power Quality Studies,” Canadian Journal of Electrical and Computer Engineering, (Early Access)

5. K. Siu and C. Ho, “System Model and Performance Evaluation of Single-Stage Buck-Boost Type Manitoba Inverter for PV Applications”, IEEE Journal of Emerging and Selected Topics in Power Electronics, (Early Access)

2019

1. N. Ho, K. Paatero, and N. Notari, “Uninterrupted Power Supply System with Precharge Converter”, US Patent,  US10199859 (B2), Feb. 5, 2019.

2. N. Ho, R. Abdalaal, and H. Chung, “Transformerless Single-Phase Unified Power Quality Conditioner (UPQC) for Large Scale LED Lighting Networks, US Patent Application”, US20190182917(A1), Jun. 13, 2019.

3. N. Ho and K. Siu, “Bi-directional electric power conversion circuit with bridgeless buck-boost circuit and reconfigurable capacitor-inductor filter circuit ”, US Patent,  US10381953 (B2), Aug. 13, 2019.

4. M. Pokharel, N. Hildebrandt, C. Ho, and Y. He, “A Fast Dynamic Unipolar Switching Control Scheme for Single Phase Inverters in DC Microgrids,” IEEE Trans. on Power Electronics, vol. 34, no. 1, pp. 916 - 927, Jan. 2019.

5. M. Pokharel, A. Ghosh, and C. Ho, “Small-Signal Modelling and Design Validation of PV-Controllers with INC-MPPT using CHIL”, IEEE Trans. on Energy Conversion, vol. 34, no. 1, pp. 316 - 317, Mar. 2019.

6. K. Siu, Y. He, C. Ho, H. Chung, and R. Li, “Advanced Digital Controller for Improving Input Current Quality of Integrated Active Virtual Ground-Bridgeless PFC”, IEEE Trans. on Power Electronics, vol. 34, no. 4, pp. 3921 - 3936, Apr. 2019.

7. C. Ho, and K. Siu, “Manitoba Inverter – Single Phase Single-Stage Buck-Boost VSI Topology”, IEEE Trans. on Power Electronics, vol. 34, no. 4, pp. 3445 - 3456, Apr. 2019.

8. Y. Zhou, C. Ho, and K. Siu, “A Fast MPPT Control Technique using Boundary Controller for PV Applications”, IEEE Journal of Photovoltaics, vol. 9, no. 3, pp. 849-857, May 2019.

9. R. Abdalaal, C. Ho, C. Leung, and H. Chung, “A Remotely Central Dimming System for a Large-Scale LED Lighting Network Providing High Quality Voltage and Current,” IEEE Trans. on Industry Applications, vol. 55, no. 5, pp. 5455-5465, Sept.-Oct. 2019.

10. D. Li, C. Ho, and K. Siu, “A Method for Solving Current Unbalance Problem of Paralleled Single-Phase Grid-connected Unipolar-PWM Inverters with Common DC Bus”, IEEE Trans. on Industry Applications, vol. 55, no. 6, pp. 7595-7603, Nov.-Dec. 2019.

11. Y. Xu, C. Ho, A. Ghosh, and D. Muthumuni “A Datasheet-Based Behavioral Model of SiC MOSFET for Power Loss Prediction in Electromagnetic Transient Simulation ”, IEEE APEC19, Mar. 2019.

12. K. Siu, and C. Ho, “Transformerless Grid-connected Converters using Active Virtual Ground Technique for Single-phase Microgrids”, IEEE SEGE19, Aug. 2019. (Best Paper Award)

13. I. Jayawardana, C. Ho, and M. Pokhrel, “Design and Implementation of Switch-mode Solar Photovoltaic Emulator using Power-Hardware-in-the-loop Simulations for Grid Integration Studies”, IEEE ECCE19, Sept. 2019.

14. Z. Zhang, C. Ho, and W. Xiao “A FPGA-based Switch-mode Power Amplifier using Boundary Controller to achieve High System Bandwidth”, IEEE ECCE19, Sept. 2019.

15. H. Umar-Lawal, C. Ho, and K. Siu, “An Isolated Single-Stage Micro-Inverter Topology with Integrated Magnetic Components”, IEEE ECCE19, Sept. 2019.

16. A. Ghosh, C. Ho, and J. Prendergast, “A Cost-effective, Compact, Automatic Testing System for Dynamic Characterization of Power Semiconductor Devices”, IEEE ECCE19, Sept. 2019.

2018

1. D. Li, C. Ho, L. Liu, and G. Escobar, “Reactive Power Control for Single-phase Grid-tie Inverters using Quasi Sinusoidal Waveform,” IEEE Trans. on Sustainable Energy, vol. 9, no. 1, pp. 3-11, Jan. 2018.

2. R. Li, C. Ho, and C. Xu “Active Virtual Ground - Single Phase Transformerless Grid-Connected Voltage Source Inverter Topology,” IEEE Trans. on Power Electronics, vol. 33, no. 2, pp. 1335 - 1346, Feb. 2018. (Second Place Winner Prize Paper Awards)

3. G. Escobar, P.R. Martinez-Rodriguez, C. Ho, J.M. Sosa, and M.J. Lopez-Sanchez, “Design of a current reference for an inverter-side current controller of a single-phase LCL-based grid-connected inverter”, International Trans. on Electrical Energy Systems, vol. 28, no. 1, e2476, Jan. 2018.

4. Y. Xu, C. Ho, A. Ghosh, and D. Muthumuni “A Behavioral Transient Model of IGBT Module for Switching Cell Power Loss Estimation in Electromagnetic Transient Simulation”, IEEE APEC18, Mar. 2018.

5. R. Shen, W. Xiao, B. Zhang, D. Qiu, and C. Ho, “Load Detection Method and Control of Class-E Inverter for Dynamic Wireless Power Transfer”, IEEE WoW18, Jun. 2018.

6. J. Luo, W. Xiao, B. Zhang, D. Qiu, and C. Ho, “'Design of Magnetic Coupling Resonant Wireless Charging System for Cable Tunnel Inspection Robot”, IEEE MTT-S WPTC2018, Jun. 2018.

7. D. Li, and C. Ho, “Master-Slave Control of Parallel-Operated Interfacing Inverters Based on Digital Wireless Communication”, IEEE ECCE18, Sept. 2018.

8. K. Siu, and C. Ho, “Small-Signal Modelling and Stability Study of a Single Stage Buck-Boost Inverter for PV Application”, IEEE ECCE18, Sept. 2018.

9. R. Abdalaal, and C. Ho, “A Remotely Control Dimming System for LED lamps with Power Factor Correction”, IEEE ECCE18, Sept. 2018.

10. J. Hu, W. Xiao, D. Qiu, B. Zhang and C. Ho, “A Single Phase Hybrid Interleaved Parallel Boost PFC Converter”, IEEE ECCE18, Sept. 2018.

11. H. Li, A. Gole, and C. Ho, “Controller Implementation and Performance Evaluation of a High Power Three-Phase Active Power Filter using Controller Hardware-in-the-Loop Simulation,” IEEE EPEC18, Oct. 2018.

12. K. Siu, and C. Ho, “Operation of Combined HF and LF Boost Inductors in PFC”, IEEE PEAC18, Nov. 2018.

13. J. Hu, W. Xiao, D. Qiu, B. Zhang and C. Ho, “Low CM leakage Current and High Efficiency H6 Inverter with Active Clamping for Transformerless PV System”, IEEE IECON18, Oct. 2018.

2017

1. L. Serpa, F. Canales, N. Ho, and A. Coccia, “Non-isolated DC-DC Converter for Solar Power Plant ”, EU Patent,  EP2367275 (B1) ,  Oct. 25, 2017.

2. G. Escobar, S. Pettersson, C. Ho, and R. Rico-Camacho, “Multi-sampling maximum power point tracker (MS-MPPT) to compensate irradiation and temperature changes”, IEEE Trans. on Sustainable Energy, vol. 8 no. 3, pp. 1096 - 1105, Aug. 2017.

3. Y. He, H. Chung, C. Ho, and W. Wu, “Modified Cascaded Boundary-Deadbeat Control for a Virtually-Grounded Three-Phase Grid-Connected Inverter with LCL Filter”, IEEE Trans. on Power Electronics, vol. 32, no. 10, pp. 1941-0107, Oct. 2017.

4. C. Ho, R. Li, and K. Siu, “Active Virtual Ground - Bridgeless PFC Topology,” IEEE Trans. on Power Electronics, vol. 32, no. 8, pp. 6206 - 6218, Aug. 2017.

5. Y. He, H. Chung, C. Ho, and W. Wu, “Direct Current Tracking Using Boundary Control with Second-Order Switching Surface for Three-Phase Three-Wire Grid-Connected Inverter”, IEEE Trans. on Power Electronics,  vol. 32, no. 7, pp. 5723-5740, July 2017.

6. K. Siu, Y. He, C. Ho, H. Chung, and R. Li, “Design, Implementation and Analysis of an Advanced Digital Controller for Active Virtual Ground-Bridgeless PFC,” IEEE APEC17, Mar. 2017.

7. Y. Zhou, C. Ho, and K. Siu, “A Fast and Accurate MPPT Control Scheme for PV Applications,” IEEE APEC17, Mar. 2017.

8. C. Ho and K. Siu, “Manitoba Inverter - Single Phase Single-Stage Buck-Boost VSI Topology,” IEEE ECCE17, Oct. 2017.

9. K. Siu and C. Ho, “Manitoba Rectifier - Bridgeless Buck-Boost PFC,” IEEE ECCE17, Oct. 2017.  (3rd Prize in the Student Project Demonstration on Emerging Technology)

10. I. Jayawardana, C. Ho, M. Pokharel, and G. Escobar “A Fast Dynamic Photovoltaic Simulator with Instantaneous Output Impedance Matching Controller,” IEEE ECCE17, Oct. 2017.

11. D. Li, C. Ho and K. Siu, “A Current Sharing Technique for Parallel-Operated Unipolar-PWM Inverters,” IEEE ECCE17, Oct. 2017.

12. R. Abdalaal and C. Ho, “Characterization of Commercial LED Lamps for Power Quality Studies,” IEEE EPEC17, Oct. 2017.

13. O. Mateo, A. Gole, and C. Ho, “Design and Implementation of Laboratory Scale Static Var Compensator to Demonstrate Dynamic Load Balancing and Power Factor Correction ,” IEEE EPEC17, Oct. 2017.

14. C. Ho, R. Andico, and G. Mudiyanselage, “Solar Photovoltaic Power in Manitoba,” IEEE EPEC17, Oct. 2017.

15. R. Abdalaal and C. Ho, “Transformerless Single-Phase UPQC for Large Scale LED Lighting Networks,” IEEE IECON17, Nov. 2017.

16. M. Pokharel and C. Ho, “Stability Study of Power Hardware in the Loop (PHIL) with a Real PV Inverter,” IEEE IECON17, Nov. 2017.

17. K. Siu, C. Ho, D. Li, and R. Li, “A Four-Quadrant Active Virtual Ground Rectifier by using only two High Frequency Switches,” IEEE IECON17, Nov. 2017.

2016

1. T. Li, N. Ho, G. Escobar, and J. Bradshaw, “Active Snubber Topology ”, US Patent,  US9331563 (B2) ,  May. 3, 2016.

2. G. Escobar, S. Pettersson, L. Serpa, N. Ho, A. Coccia, A. Oudalov, and A. Timbus, “Method and Apparatus for Detecting Islanding Conditions of a Distributed Grid ”, US Patent,  US9331486 (B2) ,  May. 3, 2016.

3. N. Ho, G. Escobar, and F. Canales, “Method and Apparatus for Producing Three-phase Current ”, US Patent,  US9344005 (B2) ,  May. 17, 2016.

4. R. Li, and C. Ho, “An Active Snubber Cell for N-Phase Interleaved DC-DC Converters”, IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 4, No. 2, pp. 334 – 351, June. 2016.

5. Y. He, H. Chung, C. Ho, and W. Wu, “Use of boundary control with second-order switching surface to reduce the system order for deadbeat controller in grid-connected inverter”, IEEE Trans. on Power Electronics, Vol. 31, No. 3, pp. 2368 – 2653, Mar. 2016.

6. D. Li, C. Ho, L. Liu, and G. Escobar, “Reactive Power Control for Single-phase Grid-tie Inverters using Quasi Sinusoidal Waveform,” IEEE IECON16, Nov. 2016.

7. K. Siu, and C. Ho, “A Critical Review of Bridgeless Power Factor Correction (PFC) Boost Rectifiers with Common-mode Voltage Mitigation,” IEEE IECON16, Nov. 2016.

8. C. Ho, R. Li, and K. Siu, “Active Virtual Ground - Bridgeless PFC Topology,” IEEE ECCE16, Sept. 2016.

9. N. Hildebrandt, M. Pokharel, C. Ho, and Y. He, “A Fast Dynamic Unipolar Switching Control Scheme for Single Phase Inverters in DC Microgrids,” IEEE ECCE16, Sept. 2016.

10. Y. He, H. Chung, C. Ho, W. Wu, “DC Bus Splitting Voltage Feedforward Injection Method for a Virtually-Grounded Three-Phase Inverter,” IEEE ECCE16, Sept. 2016.

11. Y. He, H. Chung, C. Ho, W. Wu, “Current-Mode Boundary Controller with Reduced Number of Current Sensors for a Three-Phase Inverter with an LCL-Filter,” IEEE ECCE16, Sept. 2016.

12. G. Escobar, C. Ho, and S. Pettersson, “A combined method for anti-islanding in PV inverters,” IEEE CIEP16, Jun. 2016.

13. Y. Zhou, and C. Ho, “A Review on Microgrid Architectures and Control Methods,” IEEE ECCE-Asia 16, May 2016.

14. R. Li, and C. Ho, “Active Virtual Ground: Single Phase Grid-Connected Voltage Source Inverter Topology,” IEEE APEC16, Mar. 2016.

2015

1. G. Escobar,  N. Ho and S. Pettersson, “Method and Apparatus for Controlling a Grid Connected Converter ”, US Patent,  US8929108 (B2) ,  Jan. 6, 2015.

2. G. Escobar,  N. Ho and S. Pettersson, “Method and Apparatus for Zero Sequence Damping and Voltage Balancing ”, US Patent,  US9030854 (B2) ,  May. 12, 2015.

3. N. Ho and T. Li, “Bridgeless Power Factor Correction Circuit ”, US Patent,  US9093917 (B2) ,  Jul. 28, 2015.

4. Y. Yang, J. Ma, C. Ho, and Q. Zou, “A novel coupled inductor structure for Interleaving Bidirectional DC-DC converters”, IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 3, No. 3, pp. 841 – 849, Sept. 2015.

5. G. Escobar, S. Pettersson, C. Ho, M. Lopez-Sanchez, J. Sosa, and P. Martinez-Rodriguez, “Current control of a three-phase inverter grid connected through a LCL filter,” IEEE IECON15, Nov. 2015.

6. Y. Tong, Z. Shan, C. Ho, J. Jatskevich, “Concept of Synthesizing Modular Power Supply for Interfacing Diverse Energy Sources and Loads,” IEEE COMPEL 2015, Jul. 2015

2014

1. R. Li, and C. Ho, “An Active Snubber Circuit Cell for N-Phase Interleaved DC-DC Converters,” IEEE PEAC, Nov. 2014.

2. C. Ho, R. Li, and E. Bianda, “An Efficient Current-Source Power Bipolar Junction Transistor Driver,” IEEE PEAC, Nov. 2014.

3. G. Escobar, C. Ho, S. Pettersson, “Multi-sampling maximum power point tracker (MS-MPPT) to compensate irradiation and temperature changes,” IEEE IECON14, Oct. 2014.

4. G. Escobar, C. Ho, S. Pettersson, “Cascade three-phase PLL for unbalance and harmonic distortion operation (CSRF-PLL) ,” IEEE IECON14, Oct. 2014.

5. G. Escobar, C. Ho, S. Pettersson, “Discrete phase-locked loop for three-phase systems,” IEEE IECON14, Oct. 2014.

 

 

Updated on 25 Oct. 2019