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Papers in Refereed Journals 

1. J. Dong, L. Zhu, Q. Dong, P. Kritprajun, Y. Liu, Y. Liu, L. M. Tolbert, J. C. Hambrick, Y. Xue, T. B. Ollis, B. P. Bhattarai, K. Schneider, S. Laval, “Integrating Transactive Energy into Reliability Evaluation for a Self-healing Distribution System with Microgrid,” in IEEE Transactions on Sustainable Energy, accepted, 2021.

2. T. Short, S. Wang, L. M. Tolbert, J. Wang, Y. Ma, Y. Liu, and F. Wang “Primary Frequency Control Using Motor Drives for Short Term Grid Disturbances,” in IEEE Open Journal of Industry Applications, accepted, 2021.

3. Y. Liu, L. M. Tolbert, P. Kritprajun, J. Dong, L. Zhu, J. Hambrick, K. P. Schneider, and K. Prabakar, “Aging Effect Analysis of PV Inverter Semiconductors for Ancillary Services Support,” in IEEE Open Journal of Industry Applications, vol. 1, pp. 157-170, 2020.

4. L. M. Tolbert, F. Wang, K. Tomsovic, K. Sun, J. Wang, Y. Ma, and Y. Liu, “Reconfigurable Real-Time Power Grid Emulator for Systems with High Penetration of Renewables,” in IEEE Open Access Journal of Power and Energy, vol. 7, pp. 489-500, 2020.

5. Y. Liu and F. Z. Peng, “DC Capacitor-Less Solid-State Variable Capacitor,” in IEEE Transactions on Power Electronics, vol. 36, no. 3, pp. 3540-3550, March 2021.

6. Y. Liu, X. Wang, W. Qian, A. Janabi, B. Wang, X. Lu, K. Zou, C. Chen, and F. Z. Peng, “A Simple Phase-Shift Modulation Using Parabolic Carrier for Dual Active Bridge DC-DC Converter,” in IEEE Transactions on Power Electronics, vol. 35, no. 8, pp. 7729-7734, Aug. 2020.

7. Y. Liu and F. Z. Peng, “A Modular Multilevel Converter with Self-Voltage Balancing Part I: Mathematical Proof,” in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 2, pp. 1117-1125, June 2020.

8. Y. Liu and F. Z. Peng, “A Modular Multilevel Converter with Self-Voltage Balancing Part II: Y-Matrix Modulation,” in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 2, pp. 1126-1133, June 2020.

9. Y. Liu, X. Wang, and F. Z. Peng, “An H-Bridge Based Single-Phase VAr Generator with Minimum DC Capacitance,” in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 6, no. 4, pp. 2001-2014, Dec. 2018.

10. R. Chen, Y. Liu, and F. Z. Peng, “A Solid State Variable Capacitor with Minimum Capacitor,” in IEEE Transactions on Power Electronics, vol. 32, no. 7, pp. 5035-5044, July 2017.

11. R. Chen, Y. Liu, and F. Z. Peng, “DC Capacitor-Less Inverter for Single-Phase Power Conversion with Minimum Voltage and Current Stress,” in IEEE Transactions on Power Electronics, vol. 30, no. 10, pp. 5499-5507, Oct. 2015.

Papers in Conference Proceedings 

1. Q. Dong, J. Dong, L. Zhu, P. Kritprajun, Y. Liu, Y. Liu,  L. M. Tolbert, J. C. Hambrick, K. Schneider, and S. Laval, “Impact of Self-healing Control on Reliability Evaluation  in Distribution System with Microgrid,” IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe), 2021, accepted.

2. P. Kritprajun, J. Hambrick, L. M. Tolbert, Y. Liu, J. Dong, L. Zhu, Q. Dong, and K. Schneider, “Reactive Power Allocation of PV Inverters for Voltage Support in Power Systems Based on Transactive Energy Approach,” IEEE Energy Conversion Congress & Expo (ECCE), Vancouver, Canada, 2021, accepted. 

3. Y. Liu, L. M. Tolbert, P. Kritprajun, Q. Dong, L. Zhu, J. C. Hambrick, K. Schneider, and K. Prabakar, “Quasi-Static Time Series Fatigue Simulation for PV Inverter Semiconductors with Long-Term Solar Profile,” IEEE Power & Energy Society General Meeting (PESGM), Washington D.C., USA, 2021, accepted.

4. Q. Dong, J. Dong, L. Zhu, Y. Liu, P. Kritprajun, L. M. Tolbert, S. Laval, K. Schneider, and Y. Liu, “Resilience Evaluation of Advanced Distribution Grids with Self-healing Control, Microgrid and Transactable Reactive Power,” IEEE Power & Energy Society General Meeting (PESGM), Washington D.C., USA, 2021, accepted.

5. Y. Liu, H. Li, Y. Ma, J. Wang, L. M. Tolbert, F. Wang, and K. L. Tomsovic, “Decoupling Capacitor Design for Multi-Inverter Based Grid Emulator System,” IEEE Energy Conversion Congress & Expo (ECCE), Detroit, MI, USA, 2020, pp. 2322-2327.

6. Y. Liu, L. Tolbert, F. Wang, and F. Z. Peng, “Three-Phase DC Capacitor-Less Solid-State Variable Capacitor,” IEEE Energy Conversion Congress & Expo (ECCE), Detroit, MI, USA, 2020, pp. 1945-1950.

7. A. Janabi, J. Buys, W. Qian, X. Wang, Y. Liu, B. Wang, L. Xi, K. Zou, C. Chen, and F. Z. Peng, “Bidirectional Universal Converter Transformer Design for Electric Vehicle Onboard Charging,” IEEE Energy Conversion Congress & Expo (ECCE), Detroit, MI, USA, 2020, pp. 4094-4096.

8. Y. Liu, P. Kritprajun, L. M. Tolbert, J. Dong, L. Zhu, J. C. Hambrick, K. Schneider, and B. P. Bhattarai, “Modeling of Marginal Cost for PV Inverter Ancillary Services Considering Inverter Aging under Transactive Energy Framework,” IEEE Power & Energy Society General Meeting (PESGM), Montreal, QC, Canada, 2020, pp. 1-5.

9. X. Xin, Y. Liu, K. Sun, L. M. Tolbert, and S. Debnath, “Simulation of Modular Multilevel Converter System via Analytical Approach,” IEEE Power & Energy Society General Meeting (PESGM), Montreal, QC, Canada, 2020, pp. 1-5.

10. P. Kritprajun, J. C. Hambrick, L. M. Tolbert, J. Dong, L. Zhu, Y. Liu, B. Bhattarai, K. Schneider, S. Laval, “VOLTTRON Agent Development for Enabling Reactive Power Support of Non-Utility DERs by Integrating Transactive Energy Approach,” IEEE Power & Energy Society General Meeting (PESGM), Montreal, QC, Canada, 2020, pp. 1-5.

11. Y. Liu, F. Z. Peng, and L. M. Tolbert, “Arm Inductance Quantification of Y-Matrix Modulated Modular Multilevel Converter,” International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), Nanjing, China, 2020.

12. Y. Liu, X. Wang, W. Qian, A. Janabi, B. Wang, X. Lu, K. Zou, C. Chen, and F. Z. Peng, “Direct Power Control for Dual Active Bridge Converter with Parabolic Carrier,” IEEE 7th Workshop on Wide Bandgap Power Devices and Applications (WiPDA), Raleigh, NC, USA, 2019, pp. 157-163.

13. Y. Liu, X. Wang, W. Qian, A. Janabi, B. Wang, X. Lu, K. Zou, C. Chen, and F. Z. Peng, “DC Voltage Control of Inverter Interfaced Dual Active Bridge Converter for V2L applications,” IEEE 7th Workshop on Wide Bandgap Power Devices and Applications (WiPDA), Raleigh, NC, USA, 2019, pp. 319-324.

14. X. Wang, Y. Liu, W. Qian, A. Janabi, B. Wang, X. Lu, K. Zou, C. Chen, and F. Z. Peng, “Design, and Control of a SiC Isolated Bidirectional Power Converter for V2L Applications to both DC and AC Load,” IEEE 7th Workshop on Wide Bandgap Power Devices and Applications (WiPDA), Raleigh, NC, USA, 2019, pp. 143-150.

15. Y. Liu and F. Z. Peng, “A Modular Multilevel Converter with Self Voltage Balancing,” IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, CA, USA, 2019, pp. 97-111.

16. Y. Liu and F. Z. Peng, “A Four-Level Modular Multilevel Converter with Self Voltage Balancing and Extremely Small DC Capacitor,” IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, CA, USA, 2019, pp. 2865-2871.

17. X. Wang, Y. Liu, W. Qian, B. Wang, X. Lu, K. Zou, N. González-Santini, U. Karki, F. Z. Peng, and C. Chen, “A 25kW SiC Universal Power Converter Building Block for G2V V2G and V2L Applications,” International Power Electronics and Application Conference and Exposition (PEAC), Shenzhen, China, 2018, pp. 1-6.

18. Y. Liu and F. Z. Peng, “A Carrier Magnitude Varying Modulation for Distributed Static Series Compensator to Achieve a Maximum Reactive Power Generating Capability,” IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX, USA, 2018, pp. 1597-1602.

19. Y. Liu and F. Z. Peng, “Real DC Capacitor-Less Active Capacitors,” IEEE Applied Power Electronics Conference and Exposition (APEC), Tampa, FL, 2017, pp. 44-51.

20. R. Chen, H. Zeng, D. Gunasekaran, Y. Liu, and F. Z. Peng, “Development of 2-kW interleaved DC-capacitor-less single-phase inverter system,” IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, 2016, pp. 1045-1050.

21. R. Chen, Y. Liu, P. Taskas, and F. Z. Peng, “Design of control system for solid state variable capacitor with minimum DC capacitor,” IEEE Applied Power Electronics Conference and Exposition (APEC), Charlotte, NC, 2015, pp. 109-114.