Keywords
control algorithm
electrical drives
voltage controller
stability
load current compensation DC-DC перетворювач
комбінований алгоритм керування
електропривод
регулятор напруги
стійкість
компенсація струму навантаження
How to Cite
Abstract
The paper presents design of cascaded DC-link voltage control systems for bidirectional buck-boost DC-DC converters which supply high dynamic loads such as IPMSM electrical drives. A new design methods applied for class of commutated DC-DC converters, which known as strongly nonlinear and non-minimum-phase plants, improved not only their dynamic performance but defined a new system features and therefore new opportunities for their further development and optimization. Control algorithm based on PI current and voltage controllers forms the composite system which consists of two linear stable subsystems in a nonlinear feedback loop suitable to apply the theory of cascaded systems with two time-scale separation of the control loops dynamics. As it follows from the analysis after linearization, the load current acts not only as external disturbance but defines closed loop systems parameters as well, and consequently their dynamics and stability. To overcome this problem the combination of two technologies has been proposed for controller design: a) “symmetrical” like optimum with worst-case system tuning in order to preserve system stability margin depending on maximum values of loads; b) disturbance rejection technique to improve accuracy of voltage regulation on the base of direct load current measurement or estimation. Two technologies do not contradict each other since later one is an intrinsically open loop. When DC-DC converter is used as power supply of vector controlled drives the required load information is computed from the power balance equation of complete electromechanical system ‘DC-DC converter – electrical drive’. The composite electromechanical system ensures high dynamic performance and extended power capability of the DC-DC converter, which is confirmed by the results of experimental tests and simulation study based on experimental transients of the electrical drive. References 13, Fig. 7, Table 1.
References
1. Kapat S., Krein P.T. A tutorial and review discussion of modulation, control and tuning of high-performance DC-DC converters based on small-signal and large-signal approaches. IEEE Open Journal of Power Electronics. 2020. Vol. 1. Pp. 339-371. DOI: https://doi.org/10.1109/OJPEL.2020.3018311.
2. Gorji S.A., Sahebi H.G., Ektesabi M., Rad A.B. Topologies and control schemes of bidirectional DC-DC power converters: An overview. IEEE Access. 2019. Vol. 7. Pp. 117997-118019. DOI: https://doi.org/10.1109/ACCESS.2019.2937239.
3. Forouzesh M., Siwakoti Y.P., Gorji S.A., Blaabjerg F., Lehman B. Step-up DC-DC converters: A comprehensive review of voltage-boosting techniques, topologies, and applications. IEEE Transactions on Power Electronics. 2017. Vol. 32. No 12. Pp. 9143-9178. DOI: https://doi.org/10.1109/TPEL.2017.2652318.
4. Vasca F., Iannelli L. Dynamics and Control of Switched Electronic Systems: Advanced Perspectives for Modeling, Simulation and Control of Power Converters. Springer London, 2012. 494 p. DOI: https://doi.org/10.1007/978-1-4471-2885-4.
5. Sira-Ramirez H.J., Ramón S.O. Control Design Techniques in Power Electronics Devices. Springer London, 2006. 423 p. DOI: https://doi.org/10.1007/1-84628-459-7.
6. Sanders S.R., Noworolski J.M., Liu X.Z., Verghese G.C. Generalized averaging method for power conversion cir-cuits. IEEE Transactions on Power Electronics. 1991. Vol. 6. No 2. Pp. 251-259. DOI: https://doi.org/10.1109/63.76811.
7. Vazquez S., Rodriguez J., Rivera M., Franquelo L.G., Norambuena M. Model predictive control for power convert-ers and drives: Advances and trends. IEEE Transactions on Industrial Electronics. 2017. Vol. 64. No 2. Pp. 935-947. DOI: https://doi.org/10.1109/TIE.2016.2625238.
8. Mukherjee N., Strickland D. Control of cascaded DC-DC converter-based hybrid battery energy storage systems - part II: Lyapunov approach. IEEE Transactions on Industrial Electronics. 2016. Vol. 63. No 5. Pp. 3050-3059. DOI: https://doi.org/10.1109/TIE.2015.2511159.
9. Song Z., Hou J., Hofmann H., Li J., Ouyang M. Sliding-mode and Lyapunov function-based control for bat-tery/supercapacitor hybrid energy storage system used in electric vehicles. Energy. 2017. Vol. 122. Pp. 601-612. DOI: https://doi.org/10.1016/j.energy.2017.01.098.
10. Peresada S., Kovbasa S., Pushnitsyn D., Zaichenko Y. Two nonlinear controllers for voltage source AC-DC con-verter. IEEE First Ukraine Conference on Electrical and Computer Engineering (UKRCON). Kyiv, Ukraine, 2017. Pp. 462-467. DOI: https://doi.org/10.1109/UKRCON.2017.8100532.
11. Peresada S.M., Nikonenko Y.O., Kovbasa S.M., Kuznetsov A., Lukianchikov A.L. Design of cascaded voltage control systems of bidirectional DC-DC buck-boost converters. Tekhnichna Elektrodynamika. 2024. No 1. Pp. 27-37. DOI: https://doi.org/10.15407/techned2024.01.027. (Ukr)
12. Lyubchyk L. Inverse model approach to disturbance rejection problem. In: Advanced Control Systems: Theory and Applications. River Publishers, 2021. Pp. 129-166. DOI: https://doi.org/10.1201/9781003337010-6.
13. Peresada S., Nikonenko Y., Reshetnyk V., Kiselychnyk O. Dynamics of the synchronous motor based traction elec-tromechanical systems with hybrid energy sources. IEEE Problems of Automated Electrodrive. Theory and Practice (PAEP). Kremenchuk, Ukraine, 2020. Pp. 1-6. DOI: https://doi.org/10.1109/PAEP49887.2020.9240798.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2026 Tekhnichna Elektrodynamika