Novel Fault Analysis and Compensation in 5-Level Multilevel DC-AC Converter

Year 2023, , 99 - 108, 31.01.2023

Parimalasundar Ezhilvannan , Suresh Krishnan

https://doi.org/10.31202/ecjse.1164246

Abstract

Existing Neutral clamped active (NCA) inverter has the property of common mode voltage with high frequency which can reduce the severity with less voltage gain. A newly designed 5L NCA inverter can capable have achieved voltage step-up with a one stage inversion process. Proposed circuit common ground increases voltage utilization in DC link and also mitigates common mode voltage with high frequency. Proposed topology has advantage of more compact and less voltage stress over existing two stage topology. Proposed circuit has only seven power switches with two capacitors, whereas existing topology is designed with 10 switches with 3 capacitors, so arrangement can obtain more efficiency. Implementation of this proposed topology is initially design in simulink platform, and the simulation results are finally verified in a proto-type model with power rating of 2000 W to validate its feasibility and performances with its fault clearance ability.

Keywords

Neutral clamped active (NCA) inverter, 5-Level, common mode voltage, high frequency mitigation, Total Harmonic Distortion

References

• [1]. Kim, K., H. Cha, S. Park and I. Lee, “A Modified Series-Capacitor High Conversion Ratio DC–DC Converter Eliminating Start-Up Voltage Stress Problem”. IEEE Transactions on Power Electronics, 2018, 33(1): 08-12.
• [2]. Su, U., and W. Ki, "Component-Efficient Multiphase Switched-Capacitor DC–DC Converter With Configurable Conversion Ratios for LCD Driver Applications,". IEEE Transactions on Circuits and Systems II: Express Briefs, 2008, 55(8): 753-757.
• [3]. Narimani, M., and G. Moschopoulos, "An Investigation on the Novel Use of High-Power Three-Level Converter Topologies to Improve Light-Load Efficiency in Low Power DC/DC Full-Bridge Converters,". IEEE Transactions on Industrial Electronics, 2014, 61(10): 5690-5692.
• [4]. Wu, W., H. Wang, Y. Liu, M. Huang and F. Blaabjerg, "A Dual-Buck–Boost AC/DC Converter for DC Nanogrid With Three Terminal Outputs,". IEEE Transactions on Industrial Electronics, 2017, 64(1): 295-299.
• [5]. Luo, F. and D. Ma, "An Integrated Switching DC–DC Converter With Dual-Mode Pulse-Train/PWM Control,". IEEE Transactions on Circuits and Systems II: Express Briefs, 2009, 56, (2): 152-156.
• [6]. Shrivastava, Y., S. Y. Hui, S. Sathiakumar, H. Shu-Hung Chung and K. K. Tse, "Harmonic analysis of nondeterministic switching methods for DC-DC power converters,". IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 2000, 47(6): 868-884.
• [7]. Zhang, S., and X. Yu, "A Unified Analytical Modeling of the Interleaved Pulse Width Modulation (PWM) DC–DC Converter and Its Applications,". IEEE Transactions on Power Electronics, 2013, 28(11): 5147-5158.
• [8]. Bryant, B., and M. K. Kazimierczuk, "Open-loop power-stage transfer functions relevant to current-mode control of boost PWM converter operating in CCM,". IEEE Transactions on Circuits and Systems I: Regular Papers, 2005, 52(10): 2158-2164.
• [9]. Siew-Chong Tan, Y. M. Lai and C. K. Tse, "A unified approach to the design of PWM-based sliding-mode voltage controllers for basic DC-DC converters in continuous conduction mode," . IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 53, no. 8, pp. 1816-1827, Aug. 2006.
• [10]. T. T. Song, N. Huang and A. Ioinovici, "A Zero-Voltage and Zero-Current Switching Three-Level DC–DC Converter With Reduced Rectifier Voltage Stress and Soft-Switching-Oriented Optimized Design,". IEEE Transactions on Power Electronics, 2006, 21(5): 1204-1212.
• [11]. Chen, Y., S. Shiu and R. Liang, "Analysis and Design of a Zero-Voltage-Switching and Zero-Current-Switching Interleaved Boost Converter,". IEEE Transactions on Power Electronics, 2012, 27(1):161-173.
• [12]. Aamir, M., S. Mekhilef and H. Kim, "High-Gain Zero-Voltage Switching Bidirectional Converter With a Reduced Number of Switches,". IEEE Transactions on Circuits and Systems II: Express Briefs, 2015, 62(8): 816-820.
• [13]. Zhang, F., and Y. Yan, "Novel Forward–Flyback Hybrid Bidirectional DC–DC Converter,". IEEE Transactions on Industrial Electronics, 2009, 56(5): 1578-1584.
• [14]. Dong, H., X. Xie, L. Jiang, Z. Jin and X. Zhao, "An Electrolytic Capacitor-Less High Power Factor LED Driver Based on a “One-and-a-Half Stage” Forward-Flyback Topology,". IEEE Transactions on Power Electronics, 2018, 33(2):1572-1584.
• [15]. Dost, P., and C. Sourkounis, "On Influence of Non Deterministic Modulation Schemes on a Drive Train System With a PMSM Within an Electric Vehicle,". IEEE Transactions on Industry Applications, 2016, 52(4):3388-3397.
• [16]. Chien-Ming Wang, "Novel zero-Voltage-transition PWM DC-DC converters,". IEEE Transactions on Industrial Electronics, 2006, 53(1): pp. 254-262.
• [17]. Dong-Yun Lee, Byoung-Kuk Lee, Sang-Bong Yoo and Dong-Seok Hyun, "An improved full-bridge zero-voltage-transition PWM DC/DC converter with zero-voltage/zero-current switching of the auxiliary switches,". IEEE Transactions on Industry Applications, 2000, 36(2): 558-566.
• [18]. Choi, S., V. G. Agelidis, J. Yang, D. Coutellier and P. Marabeas, "Analysis, design and experimental results of a floating-output interleaved-input boost-derived DC-DC high-gain transformer-less converter,". IET Power Electronics, 2011, 4(1): 168-180.
• [19]. Wu, W., H. Wang, Y. Liu, M. Huang and F. Blaabjerg, "A Dual-Buck–Boost AC/DC Converter for DC Nanogrid With Three Terminal Outputs,". IEEE Transactions on Industrial Electronics, 2017, 64(1): 295-299.
• [20]. Morrison, R., and M. G. Egan, "A new modulation strategy for a buck-boost input AC/DC converter,". IEEE Transactions on Power Electronics, 2001, 16(1): 34-45.