International Conference Papers (Ha)

Last Updated : 8th Dec. 2019. 

 

123. Euihoon Chung ; Jung-Ik Ha,” Resonant network design methodology based on two-port network analysis considering load impedance variation,” 2019 IEEE Energy Conversion Congress and Exposition (ECCE)

122. Hyeon-gyu Choi ; Jung-Ik Ha, “Design Method of Capacitor Network for Interior Permanent Magnet Synchronous Machine Drive,” 22nd International Conference on Electrical Machines and Systems (ICEMS), 2019.

121. Jonghun Choi ; Jun Lee ; Jung-Ik Ha, “Stator Temperature Estimation of PMSM Based on Thermal Equivalent Circuit,” 22nd International Conference on Electrical Machines and Systems (ICEMS),
2019.

120. Gyu Cheol Lim ; Hyeon-Gyu Choi ; Jonghun Choi ; Jung-Ik Ha, “Efficiency Improvement of PMSM Drive System Using Discontinuous Current Control Method at Low Torque Region,” 2019 IEEE Transportation Electrification Conference and Expo (ITEC)

119. Hyeon-Gyu Choi ; Jung-Ik Ha, “Operating Area Extension of Surface Mounted Permanent Magnet Motor by LC Network,” 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 – ECCE Asia)

118. Gyu Cheol Lim ; Hyeon-Gyu Choi ; Jung-Ik Ha, “Single Phase Commutation Control of Open-End Winding PMSM Fed by Single DC-Link Dual Inverter,” 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 – ECCE Asia)

117. Gwangyol Noh ; Jung-Ik Ha, “Analysis and Design of Four-Level Flying-Capacitor Converter in Burst Mode Operation,” 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 – ECCE Asia)

116. Shilei Lu ; Kai Sun ; Guoen Cao ; Yongdong Li ; Jung-Ik Ha ; Geon-Hong Min, “A High Step-Up Modular Isolated DC-DC Converter for Large Capacity Photovoltaic Generation System Integrated into MVDC Grids,” 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 – ECCE Asia)

115. Jaeyong Park ; Hyeon-Gyu Choi ; Minjae Sung ; Jung-Ik Ha, “Design and Implementation of Bi-directional Inductive Wireless Power Transfer for Elevator System,” 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 – ECCE Asia)

114. Jun Lee ; Jung-Ik Ha, “On-Line Switch-Open Fault Detection of PMSM Using Artificial Neural Network,” 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 – ECCE Asia)

113. Kahyun Lee and Jung-Ik Ha, “Power Capability Improvement of Interior Permanent Magnet Synchronous Motor Drives Using Capacitive Network,” IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, CA, USA, 17-21 Mar. 2019.

112. Gwangyol Noh, Jun Lee and Jung-Ik Ha, “Step-Up Converter with High Order Selectivity,” IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, CA, USA, 17-21 Mar. 2019.

111. Jin-Su Hong ; Jung-Ik Ha, “Control Area Expansion Using Null Space Vector Injection Under Current Limit in Magnetic Manipulation System,” IEEE Energy Conversion Congress and Exposition (ECCE),  Portland, OR, USA, 23-27 Sept. 2018.

110. Kahyun Lee ; Jung-Ik Ha, “Single-Phase Inverter Scheme for Permanent Magnet Synchronous Motor Drive with Resonant Capacitor,” IEEE Energy Conversion Congress and Exposition (ECCE),  Portland, OR, USA, 23-27 Sept. 2018.

109. Hyeon-gyu Choi ; Jung-Ik Ha, “Design and Control Method for Synchronous Permanent Magnet Motor Drive System with Series Capacitor,” IEEE Energy Conversion Congress and Exposition (ECCE),  Portland, OR, USA, 23-27 Sept. 2018.

108. Jun Lee ; Jung-Ik Ha, “Harmonic Torque Reduction Using Adaptive Sector-Based Torque Feedforward Method for PMSM,” IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR, USA, 23-27 Sept. 2018.

107. Choongin Lee ; Jung-Ik Ha, “Variable Switching Frequency Strategy for Enhanced Settling Performance of Position Control within Inverter Loss Limit,” International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia), pp.565 – 570, Niigata, Japan, 20-24 May 2018.

106. Geon-Hong Min ; Kyung-Hwan Lee ; Jung-Ik Ha ; Myong Hwan Kim, “Design and Control of Single-Phase Grid-Connected Photovoltaic Microinverter with Reactive Power Support Capability,”  International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia), pp.2500-2504, Niigata, Japan, 20-24 May 2018.

105. Hyeon-gyu Choi ; Jin-su Hong ; Jung-Ik Ha, “Synchronous Space Vector Voltage Modulation of Three-phase Inverter with Low Switching Number,” IEEE Transportation Electrification Conference and Expo (ITEC), pp.436 – 441, Long Beach, CA, USA, 13-15 June 2018.

104. Jaeyong Park ; Jung-Ik Ha, “Variable Time Step Control for Six-Step Operation in IPMM,” IEEE Transportation Electrification Conference and Expo (ITEC), pp.863 – 867, Long Beach, CA, USA, 13-15 June 2018.

103. Jin-Su Hong and Jung-Ik Ha, “Current Reference Projection Method for Securing Micro-robot Control Bandwidth Under Voltage Limit Condition,” the annual International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS), 2018.

102.  Jun Lee and Jung-Ik Ha, “Wirelessly Powered Coil-Type Robot with 2D Translational and 1D Rotational Self-Actuation Ability,” 15th International Conference on Ubiquitous Robots (UR), 2018.

101. Euihoon Chung, Gyu Cheol Lim, Perreault David J. and Jung-Ik Ha, “Resonant Converter Design Using Two-Port Passive Network: Single Frequency Design,” IEEE COMPEL, 2018.

100. Jun Lee; Jung-Ik Ha, “Doubly-fed machine with wireless power transfer ability,” 2018 IEEE Applied Power Electronics Conference and Exposition (APEC), pp. 3550 – 3555, 2018.

99. Sunku Kwon; Jung-Ik Ha, “Fault-tolerant operation with 1-phase open in parallel-connected motor,” 2018 IEEE Applied Power Electronics Conference and Exposition (APEC), pp. 2637 – 2641, 2018.

98. Jun Lee; Jung-Ik Ha, “Wirelessly Powered Coil-Type Robot with 1D Self-Actuation Capability,” 2017 IEEE Energy Conversion Congress and Exposition (ECCE), pp.2382 – 2388, 2017.

97. Kahyun Lee; Jung-Ik Ha; Dwarakanath Simili, “Decoupled current control with novel anti-windup for PMSM drives,” 2017 IEEE Energy Conversion Congress and Exposition (ECCE), pp.1183 – 1190, 2017.

96. Euihoon Chung; Gyu Cheol Lim; Jung-Ik Ha; Ki Young Kim, “Output voltage control for series-series compensated wireless power transfer system without direct feedback from measurement or communication,” 2017 IEEE Energy Conversion Congress and Exposition (ECCE), pp.4035 – 4040, 2017.

95. Geon-Hong Min; Jung-Ik Ha, “Active cell balancing algorithm for serially connected li-ion batteries based on power to energy ratio,” 2017 IEEE Energy Conversion Congress and Exposition (ECCE), pp.2748 – 2753, 2017.

94. Geon-Hong Min; Jung-Ik Ha, “Inner supply data transmission of resonant flyback converters using multiplexing mode in battery chargers application.” 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL), pp.1 – 5, 2017.

93. Jun Lee; Jung-Ik Ha, “On-line position and attitude estimation for magnetic manipulation system,” 14th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), pp. 616 – 621, 2017.
92. Kyung-Hwan Lee; Jung-Ik Ha, “Analysis and design of resonant rectifier for high-frequency dc-dc converters, “IEEE Applied Power Electronics Conference and Exposition (APEC), pp. 2475 – 2480, 2017.

91. Kahyun Lee; Jung-Ik Ha, “Dynamic decoupling control method for PMSM drive with cross-coupling inductances,” IEEE Applied Power Electronics Conference and Exposition (APEC), pp. 563 – 569, 2017.

90. Yonghwan Cho; Yongsu Han; Sachin Madhusoodhanan; Jung-Ik Ha; Subhashish Bhattacharya, “Synchronous frame full-order observer design for three-phase buck-type PWM rectifier,” IECON 2016 – 42nd Annual Conference of the IEEE Industrial Electronics Society, pp.3618 – 3622, 2016.

89. Yonghwan Cho; Yongsu Han; Richard Byron Beddingfield; Jung-Ik Ha; Subhashish Bhattacharya, “Seamless black start and reconnection of LCL-filtered solid state transformer based on droop control,” IEEE Energy Conversion Congress and Exposition (ECCE), 2016.

88. Kahyun Lee; Jung-Ik Ha, “Analytical approach for determining inductance matrix, harmonic voltage and torque ripple of slotted PM motors,” IEEE Energy Conversion Congress and Exposition (ECCE), 2016.

87.Yongjae Lee, Kahyun Lee Jung-Ik Ha, “Analysis and Comparison of Single Inverter Driven Series Hybrid System,” IEEE Energy Conversion Congress and Exposition (ECCE), 2016.

86.Sungho Jung, Jaeyong Park, Euihoon Chung, and Jung-Ik Ha, “Variable Time Step Control with Synchronous PWM in Low-Frequency Modulation Index for AC Machine Drive,” IEEE Energy Conversion Congress and Exposition (ECCE), 2016.

85. Sungho Jung, Jaeyong Park, Jung-Ik Ha “Variable time step control with synchronous PWM in flux weakening region of PMSM,” IEEE Transportation Electrification Conference and Expo, Asia-Pacific  (ITEC Asia-Pacific) 364-369, 2016.

84. Kahyun Lee; Young-Kwang Son; Jung-Ik Ha, “Model-based MTPA control of permanent magnet synchronous machine drives under one-phase open-circuit fault, ” 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), pp.1847 – 1853, 2016.

83.Gab-su Seo, Jung-Ik Ha, BH Cho, KC Lee, “Series arc fault detection method based on statistical analysis for dc Microgrids,” IEEE Applied Power Electronics Conference and Exposition (APEC), 487-492, 2016.

82.Yeongrack Son, JI Ha, “Data transmission method without additional circuits in bidirectional wireless power transfer system,” IEEE Applied Power Electronics Conference and Exposition (APEC), 3717-3721, 2016.

81. Young-Ho Chae, Jung-Ik Ha, “Motor current reference generation for reducing motor currents in drive systems with single-phase diode rectifier and small dc-link capacitor,” IEEE Applied Power Electronics Conference and Exposition (APEC), 2801-2805, 2016.

80. Jing-Woong Kim, Jung-Ik Ha, “Dual voltage regulations of single switch flyback converter using variable switching frequency,” IEEE Applied Power Electronics Conference and Exposition (APEC), 1398-1402, 2016.

79. Yongjae Lee, JI Ha, “Nonlinearity analysis and linear modulation method for two level voltage source inverter with low switching to operating frequency ratio,” IEEE Applied Power Electronics Conference and Exposition (APEC), 193-198, 2016.

78. Sungho Jung, Jaeyong Park, Jung-Ik Ha, “Synchronous PWM with Single Voltage Vector per Sector in Voltage Source Inverter,” IEEE Energy Conversion Congress and Exposition (ECCE), 2015.

77. Euihoon Chung, Kyung-Hwan Lee, Yongsu Han, Jung-Ik Ha, “Design of Single Switch DC-DC Converter with Parasitic Parameters,” IEEE Energy Conversion Congress and Exposition (ECCE), 2015.

76. Kahyun Lee, Jung-Ik Ha, “Single-Phase Stator Control of Interior Permanent Magnet Machines with MTPA Operation,” IEEE Energy Conversion Congress and Exposition (ECCE), 2015.

75. Yongjae Lee, Jung-Ik Ha, “Control Method for Mono Inverter Dual Parallel Interior Permanent Magnet Synchronous Machine Drive System,” IEEE Energy Conversion Congress and Exposition (ECCE), 2015.

74. Kyung-Hwan Lee, Euihoon Chung, Yongsu Han, Jung-Ik Ha, “Design and Control of 10-MHz Class E DC-DC Converter with Reduced Voltage Stress,” IEEE Energy Conversion Congress and Exposition (ECCE), 2015.

73. Jaeyong Park, Sungho Jung, Jung-Ik H “Phase Current Reconstruction with Single DC-Link Current Sensor for Six-Step Operation in Three Phase Inverter,” IEEE Energy Conversion Congress and Exposition (ECCE), 2015.

72. Hojoon Shin, Hyeon-Gyu Choi, Youngho Chae, Jung-Ik Ha, “Partial Power Assistance Operation for Single-Phase Grid-Fed Motor Drive System with DC-Link Shunt Compensator,” IEEE Energy Conversion Congress and Exposition (ECCE), 2015.

71. Yongsu Han, Kyung-Hwan Lee, Euihoon Chung, and Jung-Ik Ha, Output impedance network based design in 10MHz isolated DC-DC converter of Class Φ2, 2015 IEEE 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), pp. 2656-2662, 2015.

70. Sungho Jung and Jung-Ik Ha, Low voltage modulation method in six-step operation of three phase inverter, 2015 IEEE 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), pp. 605-610, 2015.

69. Yeongrack Son and Jung-Ik Ha, The Electric Variable Transmission without slip ring for the Hybrid Electric Vehicle driving structure, 2015 IEEE 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), pp. 857-862, 2015.

68. Jin-woong Kim and Jung-Ik Ha, Enhancement of parameter estimation accuracy using current shaping in PM machine drive, 2015 IEEE 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), pp. 2123-2128, 2015.

67. Jaeyong Park, Sungho Jung, and Jung-Ik Ha, Variable time step control for six-step operation in SMPMSM, 2015 IEEE 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), pp. 328-333, 2015.

66. Yongjae Lee and Jung-Ik Ha, Analysis of parameter variations on mono inverter dual parallel SPMSM drive system, 2015 IEEE 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), pp. 1875-1880, 2015.

65. Hojoon Shin, Hyeon-Gyu Choi, and Jung-Ik Ha, DC-link shunt compensator for three-phase system with small DC-link capacitor, 2015 IEEE 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), pp. 33-39, 2015.

64. Yongsu Han and Jung-Ik Ha, Copper loss minimizing control of Doubly Fed Wound machine, IEEE Applied Power Electronics Conference and Exposition, pp. 549-556, 2015.

63. Hojoon Shin, Jung-Ik Ha, Active DC-Link Circuit for Single-Phase
Diode Rectifier System with Small Capacitance, IEEE Power Electronics Application Conference (PEAC) 2014.

62. Euihoon Chung, Jun Lee, and Jung-Ik Ha, System Conditions Monitoring Method
for a Wireless Cellular Phone Charger, IEEE Power Electronics Application Conference (PEAC) 2014.

61. Kyung-Hwan Lee and Jung-Ik Ha, Control Strategy for Three-Phase Converter under Unbalanced Grid Voltage Conditions Considering Line Loss, IEEE Energy Conversion Congress and Exposition (ECCE) 2014.

60. Kahyun Lee, Yongsu Han and Jung-Ik Ha, Minimum Copper Loss Control of a Single-Phase Grid-Connected Wound Rotor Machine over Full Speed Range, IEEE Energy Conversion Congress and Exposition (ECCE) 2014.

59. Hojoon Shin and Jung-Ik Ha, Critical Modulation Method Based on PWAM in Three-Phase Back-to-Back Converter, IEEE Energy Conversion Congress and Exposition (ECCE) 2014.

58. Yongjae Lee and Jung-Ik Ha, Analysis and Control of Mono Inverter Dual Parallel SPMSM Drive System, IEEE Energy Conversion Congress and Exposition (ECCE) 2014.

57. Sungho Jung and Jung-Ik Ha, Carrier Signal Injection method in Three Shunt Sensing Inverter for Sensorless AC Machine Drive, IEEE Energy Conversion Congress and Exposition (ECCE) 2014.

56. Yeongrack Son and Jung-Ik Ha, Efficiency Improvement in Motor Drive System with Single Phase Diode Rectifier and Small DC-link Capacitor, IEEE Energy Conversion Congress and Exposition (ECCE) 2014.

55. Jin-Woong Kim and Jung-Ik Ha, Enhancement of Output Voltage Using Current Shaping in Sensorless AC Machine Drive, IEEE Energy Conversion Congress and Exposition (ECCE) 2014.

54. Kahyun Lee and Jung-Ik Ha, “Minimum Copper Loss Control of Doubly-Fed Induction Generator for Wind Turbines,” IEEE Power Electronics and Machine for Wind and Water Applications(PEMWA), July, 23-27, 2014.
53. Yongjae Lee and Jung-Ik Ha, “Minimization of Stator Currents for Mono Inverter Dual Parallel PMSM,” International Power Electronics Conference / IEEE ECCE-ASIA, May 18-21, 2014.
52. Jin-Woong Kim, Jung-Ik Ha, “Cell Balancing Control of Single Switch Flyback Converter Using Generalized Filters,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
51. Yeongrack Son, Jung-Ik Ha, “Grid Current Shaping of Single Phase Diode Rectifier with Small DC-Link Capacitor for Three Phase Motor Drive,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
50. Kyung-Hwan Lee, Yongjae Lee, Jung-Ik Ha, Jong-Won Shin, “New Current Control Strategy for Local Converter Under Distorted Grid Conditions,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
49. Kahyun Lee, Yongsu Han, Jung-Ik Ha, “Dynamic Model and Control of Single-Phase Induction Machine with Three-Phase Wound Rotor,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
48. Sungho Jung, Jung-Ik Ha, “Design and Analysis of Analog Filtering Method for Signal Injection Based Sensorless Control,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
47. Hojoon Shin, Jung-Ik Ha, “Individual MPPTs of Single-Phase Three-Level Split DC-Bus Inverter,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
46. Youngnam Kim, Jung-Ik Ha, “Novel Topology and Control of Single Inverter System for Two Permanent Magnet Synchronous Machines,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
45. Kwonyub Hyung, Jung-Ik Ha, “Efficient Control of Multi-String PV System Considering Switching Losses Analysis,” IEEE Applied Power Electronics Conference and Exposition, Mar. 16-20, 2014.
44. Jae-Jung Jung, Hak-Jun Lee, Jung-Ik Ha, and Seung-Ki Sul, “Reduced Sampling Rate for Cell Voltage Sensing in High-level Modular Multilevel Converter,”  IEEE International Conference on Industrial Technology Feb. 26~Mar.1, 2014.
43. Myung Seop Lim, Seung Hee Chai, Byeong Hwa Lee, Jung Pyo Hong, Jung Ik Ha, “Design of saliency-based sensorless controlled IPMSM with concentrated winding for EV traction,” COMPUMAG 30 June-4 July, 2013.
42. Jin-Woong Kim, Jong-Won Shin and Jung-Ik Ha, Cell Balancing Control Using Adjusted Filters in Flyback Converter with Single Switch, IEEE Energy Conversion Congress and Exposition (ECCE) 2013.
41. Jong-Won Shin, Hojoon Shin, Jung-Ik Ha and Bo-Hyung Cho, Novel Topology Derivation for Low Common Mode HA Converters, IEEE Energy Conversion Congress and Exposition (ECCE) 2013.
40. Anno Yoo and Jung-Ik Ha, On-line Rotor Time Constant Estimation for Indirect Field Oriented Induction Machine, IEEE Energy Conversion Congress and Exposition (ECCE) 2013.
39. Wook-Jin Lee, Yeongrack Son and Jung-Ik Ha, Single-phase Active Power Filtering Method Using Diode-Rectifier-Fed Motor Drive, IEEE Energy Conversion Congress and Exposition (ECCE) 2013.
38. Hojoon Shin, Jung-Ik Ha and Wook-Jin Lee, Active Power Control for Minimum Switching of Three-Phase Electrolytic Capacitor-less PWM Converter, IEEE Energy Conversion Congress and Exposition (ECCE) 2013.
37. Yongjae Lee and Jung-Ik Ha, Six Step Phase Modulation of Dual Inverter for Open-end Permanent Magnet Synchronous Motor, IEEE Energy Conversion Congress and Exposition (ECCE) 2013.
36. Yongsu Han and Jung-Ik Ha, Single External Source Control of Doubly-Fed Induction Machine Using Dual Inverter, IEEE Energy Conversion Congress and Exposition (ECCE) 2013.
35. Sungho Jung, Jung-Ik Ha, Sensorless Control of AC Machines at Carrier Frequency Signal Injection Using Analog Filter Circuit, IEEE International Conference on Power Electronics and Drive Systems (PEDS) 2013
34. Wook-Jin Lee and Jung-Ik Ha, Individual MPPTs of Dual Photovoltaic Arrays Using Single-Phase Split-DC Bus Inverter, IEEE Applied Power Electronics Conference (APEC) 2013
33. Yongsu Han and Jung-Ik Ha, A Doubly-Fed Induction Machine and the Control in a Single-Phase Grid Connection, IEEE Applied Power Electronics Conference (APEC) 2013
32. Y. Lee and J. Ha, Power Enhancement of Dual Inverter for Open-End Permanent Magnet Synchronous Motor, IEEE Applied Power Electronics Conference (APEC) 2013
31. Jong-Won Shin, Hojoon Shin, Jung-Ik Ha, and Bo-Hyung Cho, A Low-Common Mode Noise and High-Efficiency Buck-Buck-Boost Inverter, IEEE Applied Power Electronics Conference (APEC) 2013
30. Hojoon Shin and Jung-Ik Ha, Analysis of Two-Leg Three-Phase Transformer-Less PV Inverter with Corner Grounded Source, IEEE Applied Power Electronics Conference (APEC) 2013
29. Seung-Joohn Chee, Yongsu Han, Sungmin Kim, Jung-Ik Ha, Seung-Ki Sul, ”LVRT strategy and control for single external feeding doubly-fed induction generator,” International Conference on Wind energy Grid-Adaptive Technologies 2012.
28. Jong-Won Shin, Gab-Su Seo, Jung-Ik Ha, Bo-Hyung Cho, “A low common mode noise bridgeless boost-buck-boost power factor correction rectifier,” IEEE Energy Conversion Congress and Exposition (ECCE), pp.2901-2907, 2012.
27. Yongsu Han, Sungmin Kim, Jung-Ik Ha, “Sensorless vector control of doubly fed induction machine using a reduced order observer estimating,” IEEE Energy Conversion Congress and Exposition (ECCE), pp. 2623-2630, 2012.
26. Yongsu Han, Wook-Jin Lee, Jung-Ik Ha, “Single grid connection of Doubly-Fed Induction Generator for wind turbines,” IEEE Power Electronics and Machines in Wind Applications (PEMWA), pp. 1-8, 2012.
25. Jae-Jung Jung, Eunsoo Jung, Jung-Ik Ha, and Seung-Ki Sul, “Initial voltage angle detection method of a PWM converter without any grid voltage measurement using conduction state of diodes for smooth starting,” 2012 7th International Power Electronics and Motion Control Conference (IPEMC), vol. 1,pp.730 – 734, 2012.
24. Yongjae Lee and Jung-Ik Ha, “High efficiency dual inverter drives for a PMSM considering field weakening region,” 2012 7th International Power Electronics and Motion Control Conference (IPEMC),vol. 2, pp.1009 – 1014, 2012.
23. Seonghwan Kim, Hojooon Shin, Jung-Ik Ha, Jejong Yoon, “Effective energy recovery in capacitive deionization process,” Proc. of The 62nd Annual Meeting of the International Society of Electrochemistry, Sep. 2011.
22. Sungmin Kim, Jung-Ik Ha, and Seung-Ki Sul, “PWM switching frequency signal injection sensorless method in IPMSM,” 2011 IEEE Energy Conversion Congress and Exposition, pp. 3021 – 3028, 2011.
21. Byung-Geuk Cho, Jung-Ik Ha, and Seung-Ki Sul, “Voltage injection method for boundary expansion of output voltages in three shunt sensing PWM inverters,” 2011 IEEE 8th International Conference on Power Electronics and ECCE Asia (ICPE & ECCE)pp.411 – 415, 2011.
20. Sungmin Kim, Jung-Ik Ha, and Seung-Ki Sul, “Single shunt current sensing technique in three-level PWM inverter,” 2011 IEEE 8th International Conference on Power Electronics and ECCE Asia (ICPE & ECCE)pp. 1445 – 1451, 2011.
19. Hyung-Sun Ryu, Ho-Sun Yoo, Jung-Ik Ha, “Carrier-Based Signal Injection Method for Harmonic Suppression in PWM Inverter Using Single DC-link Current Sensor,” IEEE Conference on Industrial Electronics(IECON), pp. 2700-2705, Nov. 2006.
18. Ji-Hoon Jang; Seung-Ki Sul; Jung-Ik Ha; Ohto, M.; Ide, K., “Analysis of permanent magnet machine for sensorless control based on high frequency signal injection,” Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the, Vol.1, pp.592 – 598 vol.1, 12-16 Oct. 2003.
17. Ji-Hoon Jang, Seung-Ki Sul, Jung-Ik Ha, K. Ide, M. Sawamura, “Sensorless drive of SMPM motor by high frequency signal injection,” Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2002), vol. 1 , pp. 279 –285, March, 2002.
16. Kozo Ide, Jung-Ik Ha, and M. Sawamura, “A novel hybrid speed estimator of flux observer for induction motor drives,” Proceedings of the 2002 IEEE International Symposium on Industrial Electronics (ISIE 2002), vol. 3 , pp 822 –827, May, 2002.
15. Jung-Ik Ha, Motomichi Ohto, Ji-Hoon Jang, and Seung-Ki Sul, “Design and Selection of AC Machines for Saliency-Based Sensorless Control,” IEEE IAS Conference, Oct., 2002.
14. Kozo Ide, Jung-Ik Ha, Mitsujiro Sawamura, Hideaki Iura, and Yoichi Yamamoto, “High Frequency Injection Method Improved by Flux Observer for Sensorless Control of an Induction Motor,” IEEE & IEEJ PCC Conference, vol. 2 , pp. 516 –521, April, 2002.
13. Jung-Ik Ha, Kozo Ide,Toshihiro Sawa, and Seung-Ki Sul, “Sensorless Position Control and Initial Position Estimation of an Interior Permanent Magnet Motor,” IEEE IAS Conference(IAS) pp.2607-2613, 2001.
12. Ji-Hoon Jang, Jung-Ik Ha, and Seung-Ki Sul, “Vector Control of Surface Mounted Permanent Magnet Motor without any Rotational Transducer,” IEEE Application Power Electronics Conference and Exposition APEC 2001 Conference, vol. 2, pp. 845 –849, March, 2001.
11. Jung-Ik Ha, Seung-Ki Sul, Kozo Ide, Ikuma Murokita, Kohjiro Sawamura, “Physical Understanding of High Frequency Injection method to Sensorless Drives of an Induction Machine,” IEEE Industry Application Conference(IAS) pp.1802-1808, Oct., 2000.
10. Hyung-Min Ryu, Jung-Ik Ha, and Seung-Ki Sul, “A New Sensorless Thrust Control of Linear Induction Motor,” IEEE Industry Application Conference(IAS) pp.1655-1661, Oct., 2000.
9. Yong-Won Choi, Jung-Ik Ha, Seung-Ki Sul, Dae-Woong Chung, Jun-Koo Kang, Geun-Ho Lee, Han-Jong Kim, and Jea-Pil Lee, “Suppression of Vibration for Elevator System using Deadtime Compensation with Current Prediction,” Conference on the Advanced Motion Control(AMC), April, 2000.
8. Jung-Ik Ha, Seung-Ki Sul and Min-Ho Park, “Position Controlled Interior Permanent Magnet Motor Without any Rotational Transducer,” International Conference on Electrical Engineerings(ICEE), 2000.
7. Kozo Ide, Ikuma Murokita, Mitsujiro Sawamura, Motomichi Ohto, Yukio Nose, Jung-Ik Ha, and Seung-Ki Sul, “Finite Element Analysis of Sensorless Induction Machine by High Frequency Voltage Injection,” Proceedings of the 2000 IPEC-TOKYO, vol.4, pp. 1842-1847, April, 2000.
6. Hyung-Min Ryu, Jung-Ik Ha, Seung-Ki Sul, Kozo Ide, Yoichi Yamamoto and Eiji Watanabe, “Compensation of Voltage Distortion in PWM-VSI by Prediction of Stator Currents at Switching Point,” Proceedings of the 1999 Japan Industry Application Society Conference(JIASC ’99), vol. III, pp 87-90, Aug, 1999.
5. Dea-Woong Chung, Jung-Ik Ha, Seung-Ki Sul, Kozo Ide, Ikuma Murokita and Toshihiro Sawa, “Controller Design of Sensorless Induction Machine by High Frequency Voltage Injection,” Proceedings of the 1999 Japan Industry Application Society Conference(JIASC ’99), vol. I, pp 541-546, 1999.
4. Seog-Joo Kang, Jung-Ik Ha and Seung-Ki Sul, “Position Controlled Synchronous Reluctance Motor Without Rotational Transducer,” Industry Applications Society (IAS ’98) pp.671-676, 1998
3. Jung-Ik Ha and Seung-Ki Sul, “Sensorless Field Orientation Control by High Frequency Injection for Overall Frequency Range Induction Machine Drives,” The International Conference on Electrical Engineering(ICEE ’98) Vol. I. pp.71-74, July, 1998.
2. Jung-Ik Ha and Seung-Ki Sul, “Sensorless Field Orientation Control of an Induction Machine by High Frequency Signal Injection,” Industry Applications Society(IAS ’97) pp.426-432, 1997.
1. Jung-Ik Ha, E.S Koo, H.D Lee, J.S Kim, S.K Sul, “Advanced Control Strategy of Parallel Hybrid Low Emission Electric Vehicle, ” IEEE Workshop on Power Electronics in Transportation, pp.71-76, 1996.

 

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