Power-Control Strategy of a Current Source Converter for HighPower Induction Melting
Abstract
This paper presents a power control scheme of a current source converter (CSC) which delivers a constant current to the load for induction melting applications. The proposed control scheme with SVPWM pattern regulates the power of a high Q- resonant load by controlling the DC current according to the defined target. The PI controller adjusts the manipulated variable by SVPWM in such a way that the error signal is reduced to a minimum value and a constant current is maintained uninterruptedly for the load. In order to validate this constant current requirement to the load, the output power analysis of the resonant inverter is also carried out in this work. The proposed control scheme is described through simulation in Matlab and the results show its effectiveness in inductionmelting applications.References
O. Heavy, J. Van Merlo, and P. Lataire, “Control and analysis of an integrated bidirectional DC/AC and DC/DC converters for plug-in hybrid electric vehicle applications,” J. Power Electron., vol. 11, no. 4, pp. 408–417, Jul. 2011.
O. Hegazy, J. Van Mierlo, and P. Lataire, “Analysis, control and implementation of a high-power interleaved boost converter for fuel cell hybrid electric vehicle,” Int. Rev. Electr. Eng., vol. 6, no. 4, pp. 1739–1747, 2011.
W. Yu, H. Qian, and J.-S. (Jason) Lai, “Design of high-efficiency bidirectional DC–DC converter and high precision efficiency measurement,” IEEE Trans. Power Electron., vol. 25, no. 3, pp. 650–658, Mar. 2010.
X. Kong and A. M. Khambadkone, “Analysis and implementation of a high efficiency, interleaved current-fed full bridge converter for fuel cell system,” IEEE Trans. Power Electron., vol. 22, no. 2, pp. 543–550, Mar.2007.
H. Kim, C. Yoon, and S. Choi, “A three-phase zero-voltage and zero current switching DC–DC converter for fuel cell applications,” IEEE Trans. Power Electron., vol. 25, no. 2, pp. 391–398, Feb. 2010.
M. Al Sakka, J. Van Mierlo, H. Gualous, and P. Lataire, “Comparison of 30KWDC/DC Converter topologies interfaces for fuel cell in hybrid electric vehicle,” in Proc. 13th Eur. Conf. Power Electron
Y.-J. Lee and A. Emadi, “Phase shift switching scheme for DC/DC boost converter with switches in parallel,” in Proc. IEEE Vehicle Power Propulsion Conf., Harbin, China, Sep. 3–5, 2008.
G. A. L. Henn, R. N. A. L. Silva, P. P. Prac¸a, L. H. S. C. Barreto, andD. S. Oliveira, Jr., “Interleaved-boost converter with high voltage gain,”IEEE Trans. Power Electron., vol. 25, no. 11, pp. 2753–2761, Nov. 2010.
C. Yoon, J. Kim, and S. Choi, “Multiphase DC–DC converters using a boost-half-bridge cell for high-voltage and high-power applications,” IEEE Trans. Power Electron., vol. 26, no. 2, pp. 381–388, Feb. 2011.
Y.-C. Hsieh, T.-C. Hsueh and H.-C. Yen, “An interleaved boost converter with zero-voltage transition,” IEEE Trans. Power Electron., vol. 24, no. 4, pp. 973–978, Apr. 2009.
X. Yang, Y. Ying, and W. Chen, “A novel interleaving control scheme for boost converters operating in critical conduction mode,” J. Power Electron., vol. 10, no. 2, pp. 132–137, Mar. 2010.
P. Gupta, A. Patra, Hybird sliding mode control of DC-DC power converter circuits, J. IEEE. Trans Power Electronics 1 (2003) 259-263.
V.I. Utkin, Variable structure systems with sliding modes, J. IEEE Trans Automatic Control. 2 (1997) 212-222.
H. Wang, Y. Zhang, Y. Gao, Buck converter based on sliding mode variable structure control, Electronic Design Engineering, vol. 21, No.10 , pp:123-125,2013.
J. Li, F. Wang, L. Li, “Research and implementation of sliding mode control of Buck converter,” Power technology, vol. 134, no. 2, pp: 190-191, 2010.
J. Guan, Research and comparison of new digital control method for DC -DC converter, Electronic measurement technology, vol. 4, no. 3, pp: 36-39, 2013.
F. Li, Research of digital PID control algorithm, Liaoning UniversityJournal, vol 32, no. 4, pp: 367-370.
S. Chuodhury, “Designing a TMS320F280x Based Digital Controlled DC-DC Switching Power Supply,” TI Digital Power, C2000 DSP and System Power Management, July 2005.
