Harun ÖZBAY, Akif KARAFİL, Selim ÖNCÜ

Sliding mode PLL-PDM controller for induction heating system

In this study, a sliding mode controlled phase locked loop (SMC-PLL) was developed for induction heating (IH) applications with a resonant inverter. PLL applications are widely used in induction heating applications to achieve zero voltage switching and zero current switching. In many PLL applications, the frequency tracking is too slow and unreliable. Therefore, a sliding mode controller was developed to provide robust and fast PLL. Furthermore, a pulse density modulation (PDM) control strategy was developed to work at the resonant frequency for all power levels. The PDM power control is a good solution for the design of high-frequency inverters because of a great reduction of switching losses and electromagnetic noise. The PDM pattern for the desired output power is determined according to the set temperature value of the work piece. The proposed system was simulated in PSIM and a 250-W laboratory prototype was implemented with operating frequency of 35–42 kHz

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1] Espi-Huerta JM, Santamaria EJDG, Gil RG. Castello-Moreno, J. Design of the L-LC resonant inverter for induction heating based on its equivalent SRI. IEEE Transactions on Industrial Electronics 2007; 54 (6): 3178-3187. doi: 10.1109/TIE.2007.905928
[2] Özbay H. PDM-MPPT based solar powered induction heating system. Engineering Science and Technology, an International Journal 2020. doi: 10.1016/j.jestch.2020.06.005
[3] Lucía O, Maussion P, Dede EJ, Burdío JM. Induction heating technology and its applications: past developments, current technology, and future challenges. IEEE Transactions on Industrial Electronics 2013; 61 (5): 2509-2520. doi: 10.1109/TIE.2013.2281162
[4] Rudnev V, Loveless D, Cook RL. Handbook of Induction Heating. Boca Raton, USA: CRC press, 2017.
[5] Llorente S, Monterde F, Burdio JM, Acero J. A comparative study of resonant inverter topologies used in induction cookers. In: 17th Annual IEEE Int. Conf. Applied Power Electronics, Dallas, USA; 2002. pp. 1168-1174.
[6] Suryawanshi HM, Pachpor S, Ajmal T, Talapur GG, Sathyan S et al. Hybrid control of high-eﬀicient resonant converter for renewable energy system. IEEE Transactions on Industrial Informatics 2017; 14 (5): 1835-1845. doi: 10.1109/TII.2017.2756703
[7] Shu L, Chen W, Ma D, Ning G. Analysis of strategy for achieving zero-current switching in full-bridge converters. IEEE Transactions on Industrial Electronics 2017; 65 (7): 5509-5517. doi: 10.1109/TIE.2017.2779443
8] Esteve V, Jordán J, Sanchis-Kilders E, Dede EJ, Maset E et al. Enhanced pulse-density-modulated power control for high-frequency induction heating inverters. IEEE Transactions on Industrial Electronics 2015; 62 (11): 6905-6914. doi : 10.1109/TIE.2015.2436352
[9] Chen MP, Chen JK, Murata K, Nakahara M, Harada K. Surge analysis of induction heating power supply with PLL. IEEE Transactions on Power Electronics 2001; 16 (5): 702-709. doi: 10.1109/63.949503
[10] Bal G, Oncu S, Ozbas E. Self-oscillated induction heater for absorption cooler. Elektronika ir Elektrotechnika 2013; 19 (10): 45-48. doi: 10.5755/j01.eee.19.10.5894
[11] Geng H, Sun J, Xiao S, Yang G. Modeling and implementation of an all digital phase-locked-loop for grid-voltage phase detection. IEEE Transactions on Industrial Informatics 2012; 9 (2): 772-780. doi: 10.1109/TII.2012.2209666
[12] Lin JM, Yang CY. A fast-locking all-digital phase-locked loop with dynamic loop bandwidth adjustment. IEEE Transactions on Circuits and Systems I: Regular Papers 2015; 62 (10): 2411-2422.
[13] Han B, Bae B. Novel phase-locked loop using adaptive linear combiner. IEEE Transactions on Power Delivery 2005; 21 (1): 513-514. doi: 10.1109/TPWRD.2005.860436
[14] Namadmalan A. Universal tuning system for series-resonant induction heating applications. IEEE Transactions on Industrial Electronics 2016; 64 (4): 2801-2808. doi: 10.1109/TIE.2016.2638399
[15] Zeng SQ. The application design and study of phase-locked loop CD4046. Electronics Quality 2012; (1): 25-72.
[16] Zhang K, Pu j. Low power consumption phase-locked loop 4046 applied research and simulation. Poplar Science and Technology 2014; (6): 124-126.
[17] Li S, Deng X. The design of phase-locked-loop circuit for precision capacitance micrometer. In: MATEC Web of Conferences 2016; (68): 12006-12009.
[18] Perruquetti W, Barbot JP. Sliding Mode Control in Engineering. Boca Raton, USA: CRC press, 2002.
[19] Yaylacı E K, Yazıcı İ. Sensorless double integral sliding mode MPPT control for the WECS. Journal of Renewable and Sustainable Energy 2018; 10 (2): 023301. doi: 10.1063/1.5001549
[20] Komurcugil H, Bayhan S, Abu-Rub H. Lyapunov-function based control approach with cascaded PR controllers for single-phase grid-tied LCL-filtered quasi-Z-source inverters. In: 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering 2017; 510-515.
[21] Park NJ, Lee DY, Hyun DS. A power-control scheme with constant switching frequency in class-D inverter for induction-heating jar application. IEEE Transactions on Industrial Electronics 2007; 54 (3): 1252-1260. doi: 10.1109/TIE.2007.892741
[22] Lo YK, Lin CY, Hsieh MT, Lin CY. Phase-shifted full-bridge series-resonant DC-DC converters for wide load variations. IEEE Transactions on Industrial Electronics 2010; 58 (6): 2572-2575. doi: 10.1109/TIE.2010.2058076
[23] Karafil A, Ozbay H, Oncu S. Power control of resonant converter MPPT by pulse density modulation. In: 10th IEEE International Conference on Electrical and Electronics Engineering, Bursa 2017; 360-364.
[24] Nagarajan B, Sathi RR. Phase locked loop based pulse density modulation scheme for the power control of induction heating applications. Journal of Power Electronics 2015; 15 (1): 65-77. doi: 10.6113/JPE.2015.15.1.65
[25] Karafil A, Ozbay H, Oncu S. Design and Analysis of Single Phase Grid Tied Inverter with PDM MPPT Controlled Converter. IEEE Transactions on Power Electronics 2020; 35 (5): 4756-4766. doi: 10.1109/TPEL.2019.2944617
[26] Özbay H, Öncü S, Kesler M. SMC-DPC based active and reactive power control of grid-tied three phase inverter for PV systems. International Journal of Hydrogen Energy 2017; 42 (28): 17713-17722. doi: 10.1016/j.ijhydene.2017.04.020