Design and experimental implementation of DC-DC converter based self-tuning fuzzy PI controller

Öz

In this study, self-tuning fuzzy PI (SFPI) controller based DC-DC boost converter topology is presented. The closed loop transfer function of the converter was obtained and its design was performed by examining the small signal model for stability analysis. The input-output relationship has been verified by black box modeling. The behaviors of the system between 20 kHz and 100 kHz at different switching frequencies were examined. Conventional PI controller was applied to test the dynamic response of the system and it was observed that voltage regulation was insufficient in cases such as input voltage and load changes in the system. Therefore, SFPI controller is proposed to improve the output voltage regulation of the converter. With the proposed SFPI the PI controllers were compared with performance criteria such as rise time, settlement time and overshoot. According to the results of the analysis, it was observed that the system efficiency was improved by reducing the losses in power conversion by designing the proposed controller and snubber circuits. The nominal voltage of the prototype converter is 48 V, the power is 100 W, and the overall efficiency of the system is 92.9%. The analysis and simulation results of the system were confirmed by experimental results.

Anahtar Kelimeler

• Fuzzy controller,DC-DC power converters,pulse width modulation,duty cycle

Kendinden ayarlı bulanık PI denetleyici tabanlı DA-DA dönüştürücü tasarımı ve deneysel uygulaması

Öz

Bu çalışmada kendinden ayarlı bulanık PI (SFPI) kontrolör tabanlı DA-DA yükselten dönüştürücü topolojisi sunulmuştur. Dönüştürücünün kapalı çevrim transfer fonksiyonu elde edilmiş ve kararlılık analizi için küçük işaret modeli incelenerek tasarımı gerçekleştirilmiştir. Giriş-çıkış ilişkisi kara kutu modelleme ile doğrulanmıştır. Sistemin farklı anahtarlama frekanslarında 20 kHz ile 100 kHz aralığındaki davranışları incelenmiştir. Sistemin dinamik tepkisini test etmek için geleneksel PI kontrolör uygulanmış ve sistemde giriş gerilimi ve yük değişimleri gibi durumlarda gerilim regülasyonunun yetersiz olduğu gözlenmiştir. Bu nedenle dönüştürücünün çıkış gerilim regülasyonunu iyileştirmek için SFPI kontrolör önerilmiştir. Önerilen SFPI ile PI kontrolörler yükselme zamanı, yerleşme zamanı ve aşma gibi performans kriterleri ile karşılaştırılmıştır. Analiz sonuçlarına göre önerilen kontrolör ve sönümleme devrelerinin tasarlanması ile güç dönüşümündeki kayıpların azaltılarak sistem veriminin iyileştirildiği gözlenmiştir. Prototipi gerçekleştirilen dönüştürücünün nominal gerilimi 48 V, gücü 100 W olup sistemin genel verimi %92,9 olarak bulunmuştur. Sistemin analiz ve benzetim sonuçları deneysel sonuçlarla doğrulanmıştır.

Anahtar Kelimeler

• Bulanık kontrolör,DA-DA güç dönüştürücüsü,darbe genişlik modülasyonu,görev oranı

Kaynakça

1. Hema Rani P., Navasree S., Saly G., Ashok S., Fuzzy logic supervisory controller for multi-input non-isolated DC to DC converter connected to DC grid, International Journal of Electrical Power & Energy Systems, 112, 49-60, 2019.
2. Umadevi K., Nagarajan C., Design and implementation of novel soft switching method based DC-DC converter with non-isolated coupled inductor in solar system using FPGA, Microprocessors and Microsystems, 73, 2020.
3. Kolar J. W.et al., PWM Converter Power Density Barriers, 2007 Power Conversion Conference - Nagoya, 9-29.
4. Zhao C., Wu X., Meng P. and Qian Z., Optimum Design Consideration and Implementation of a Novel Synchronous Rectified Soft-Switched Phase-Shift Full-Bridge Converter for Low-Output-Voltage High-Output-Current Applications, in IEEE Transactions on Power Electronics, 24(2), 388-397, 2009.
5. Guo L., Hung J. Y. and Nelms R. M., Evaluation of DSP-Based PID and Fuzzy Controllers for DC–DC Converters, in IEEE Transactions on Industrial Electronics, 56(6), 2237-2248, 2009.
6. Veerachary M. and Devassy S., Robust stabilizing digital controller for soft-switching zero voltage turn-ON H-bridge boost converter, Joint International Conference on Power Electronics, Drives and Energy Systems & Power India, New Delhi, 1-5, 2010.
7. Vijayalakshmi S., Arthika E. and Priya G. S., Modeling and simulation of interleaved Buck-boost converter with PID controller, IEEE 9th International Conference on Intelligent Systems and Control (ISCO), Coimbatore, 1-6, 2015.
8. Ray P. K., Das S. R. and Mohanty A., Fuzzy Controller Designed PV Based Custom Power Device for Power Quality Enhancement, IEEE Transactions on Energy Conversion, 34(1), 405-414, 2019.

9. Rai N., Rai B., Control of fuzzy logic based PV-battery hybrid system for stand-alone DC applications, Journal of Electrical Systems and Information Technology, 5(2), 135-143, 2018.
10. Cheng L. et al., Model Predictive Control for DC–DC Boost Converters With Reduced-Prediction Horizon and Constant Switching Frequency, IEEE Transactions on Power Electronics, 33(10), 9064-9075, 2018.
11. Cunha R.B.A., Inomoto R.S., Altuna J.A.T., Costa F.F., Di Santo S.G., Sguarezi Filho A.J., Constant switching frequency finite control set model predictive control applied to the boost converter of a photovoltaic system, Solar Energy, 189, 57-66 2019.
12. Hossain M.Z., Rahim N.A., Selvaraj J., Recent progress and development on power DC-DC converter topology, control, design and applications: A review, Renewable and Sustainable Energy Reviews, 81(1), 205-230, 2018.
13. Sree B. L. and Umamaheswari M. G., Modeling and control of solar power fed single ended primary inductor converter using cascade control scheme, Trends in Industrial Measurement and Automation (TIMA), Chennai, 1-7,2017.
14. Raj R. N., Purushothaman K. V. and Singh N. A., Adaptive TSK-type neural fuzzy controller for boost DC-DC converter, IEEE International Conference on Circuits and Systems (ICCS), Thiruvananthapuram, 441-446, 2017.
15. Nouri A., Salhi I., Elwarraki E., Beid S., Essounbouli N., DSP-based implementation of a self-tuning fuzzy controller for three-level boost converter, Electric Power Systems Research, 146, 286-297, 2017.
16. Almasi O. N., Fereshtehpoor V., Khooban M. H., Blaabjerg F., Analysis, control and design of a non-inverting buck-boost converter: A bump-less two-level T–S fuzzy PI control, ISA Transactions, 67, 515-527, 2017.
17. Cheng C.H., Cheng P.J., Wu M.T., Fuzzy logic design of self-tuning switching power supply, Expert Systems with Applications, 37(4), 2929-2936, 2010.
18. Ozdemir S., Altin N, Sefa I., Fuzzy logic based MPPT controller for high conversion ratio quadratic boost converter, International Journal of Hydrogen Energy, 42(28), 17748-17759, 2017.
19. Ushakumari S. and Mithila A. K., Design of robust sliding mode and fuzzy logic controllers for boost and buck-boost converters, International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT), Kannur, 463-468, 2017.
20. Rex S. R. And Praba D.M.M.S.R., Design of PWM with four transistor comparator for DC–DC boost converters, Microprocessors and Microsystems, 72, 2020.
21. Thrimawithana D. J., Madawala U. K. and Lunenburg P., A Novel Buck-Boost Control Technique for Push-Pull Parallel-Resonant Converters, 32nd Annual Conference on IEEE Industrial Electronics, Paris, 2805-2811, 2006.
22. Daniel W. Hart, Power Electronics, Published by McGraw-Hill, NewYork, 2011.
23. Erickson R. W., Dragan Maksimovic, Fundamentals of Power Electronics, Kluwer Academıc Publishers, NewYork, 2001.
24. Demirtaş M., Sefa, İ., Irmak E., Çolak, İ., Mikrocontroller based DC-DC boost converter for solar energy systems, Journal of the Faculty of Engineering and Architecture of Gazi University 23(3), 719-728, 2008.
25. Marian K. Kazimierczuk, Pulse-width Modulated DC–DC Power Converters, John Wiley & Sons, Dayton, Ohio, USA, 2008.
26. Masri S. and Chan P. W., Design and development of a DC-DC boost converter with constant output voltage, International Conference on Intelligent and Advanced Systems, Manila, 1-4 2010.