Constant temperature control of tundish induction heating power supply for metallurgical manufacturing

Abstract

The tundish induction heating power supply (TIHPS) is one of the most important equipment in the continuous casting process for metallurgical manufacturing. Specially, the constant temperature control is greatly significant for metallurgical manufacturing. In terms of the relationship between TIH load temperature and output power of TIHPS, the constant temperature control can be realized by power control. In this paper, a TIHPS structure with three-phase PWM rectifiers and full-bridge cascaded inverter is proposed. Besides, an input harmonic current blocking strategy and a load voltage feedforward control are also proposed to realize constant temperature control. To meet the requirement of the system, controller parameters are designed properly. Experiments are conducted to validate the feasibility and effectiveness of the proposed TIHPS topology and the control methods.

Key words： tundish induction heating power supply (TIHPS); constant temperature control; input harmonic current blocking; load voltage feedforward

References

1 Lucía O, Maussion P, Dede E J, Burdío J M. Induction heating technology and its applications: past developments, current technology, and future challenges. IEEE Transactions on Industrial Electronics, 2014, 61(5): 2509–2520

2 Moreland W C. The induction range: its performance and its development problems. IEEE Transactions on Industry Applications, 1973, 9(1): 81–85

3 Davies J, Simpson P. Induction Heating Handbook. New York: McGraw-Hill, 1979

4 Zu L Y, Meng H J, Zhi X. Coupled numerical simulation of fluid field and temperature field in five-strand tundish of continuous casting. In: Proceeding of International Conference Electric Information and Control Engineering, Wuhan, China, 2011, 251–255

5 Ristiana R, Syaichu-Rohman A, Rusmin P H. Modeling and control of temperature dynamics in induction furnace system. In: Proceeding of 5th IEEE International Conference on System Engineering and Technology (ICSET), Shah Alam, Malaysia, 2015

6 Ristiana R, Rochman A S. Modelling and desain temperature control of induction furnaces system. Dissertation for the Master’s Degree. Indonesia: Institut Teknologi Bandung, 2013

7 He Q, Su Z, Xie Z, Zhong Z, Yao Q. A novel principle for molten steel level measurement in tundish by using temperature gradient. IEEE Transactions on Instrumentation and Measurement, 2017, 66(7): 1809–1819

8 Viriya P, Sittichok S, Matsuse K. Analysis of high-frequency induction cooker with variable frequency power control. PCC-Osaka, 2002, 3: 1502–1507

9 Liu Y, Ge B, Abu-Rub H, Sun H, Peng F, Xue Y. Model predictive direct power control for active power decoupled single-phase quasi-Z-source inverter. IEEE Transactions on Industrial Informatics, 2016, 12(4): 1550–1559

10 Zhang Y, Qu C, Gao J. Performance improvement of direct power control of PWM rectifier under unbalanced network. IEEE Transactions on Power Electronics, 2017, 32(3): 2319–2328

11 Xiang C, Liu Z, Zhang G, Liao Y. A model-based predictive direct power control for traction line-side converter in high-speed railway. In: 2016 IEEE Conference and Expo of Transportation Electrification Asia-pacific, Busan, South Korea, 2016, 134–138

12 Hu J, Zhu J, Dorrell D G. Predictive direct power control of doubly fed induction generators under unbalanced grid voltage conditions for power quality improvement. IEEE Transactions on Sustainable Energy, 2015, 6(3): 943–950

13 Isobe T, Shimada R. New power supply topologies enabling high performance induction heating by using MERS. In: 39th Annual Conference of the IEEE Industrial Electronics Society, Vienna, Austria, 2013, 5046–5051

14 Saha B, Kim R Y. High power density series resonant inverter using an auxiliary switched capacitor cell for induction heating applications. IEEE Transactions on Power Electronics, 2014, 29(4): 1909–1918

15 Mishima T, Nakaoka M. A load-power adaptive dual pulse modulated current phasor-controlled ZVS high-frequency resonant inverter for induction heating applications. IEEE Transactions on Power Electronics, 2014, 29(8): 3864–3880

16 Rodriguez J I, Leeb S B. A multilevel inverter topology for inductively coupled power transfer. IEEE Transactions on Power Electronics, 2006, 21(6): 1607–1617

17 Althobaiti A, Armstrong M, Elgendy M A. Current control of three-phase grid-connected PV inverters using adaptive PR controller. In: 2016 7th International Renewable Energy Congress (IREC), Hammamet, Tunisia, 2016