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Volume 13 | Issue 9 | Year 2026 | Article Id. IJEEE-V13I9P109 | DOI : https://doi.org/10.14445/23488379/IJEEE-V13I9P109

A Non-Isolated Multi-Input Multi-Output DC-DC Converter with DTC-SVM Drive Integration for Electric Vehicle Traction Systems

Aishwarya Ranjan Gangajaliwale, Rupesh C. Jaiswal, Sunil K. Moon, Anil S. Shirsat

Received Revised Accepted Published
05 Aug 2026 09 Sep 2026 15 Sep 2026 26 Sep 2026

Citation :

Aishwarya Ranjan Gangajaliwale, Rupesh C. Jaiswal, Sunil K. Moon, Anil S. Shirsat, "A Non-Isolated Multi-Input Multi-Output DC-DC Converter with DTC-SVM Drive Integration for Electric Vehicle Traction Systems," International Journal of Electrical and Electronics Engineering, vol. 13, no. 9, pp. 103-122, 2026. Crossref, https://doi.org/10.14445/23488379/IJEEE-V13I9P109

Abstract

This paper presents an analytical study of a non-isolated Multi-Input Multi-Output (MIMO) DC-DC converter integrated with a Direct-Torque-Controlled, Space-Vector-Modulated (DTC-SVM) traction drive for Electric Vehicles (EVs). Three sources-a 40-V auxiliary battery, a 600-V traction battery, and an 80-V shared battery-simultaneously supply an 800-V traction bus and 24-V/12-V auxiliary buses through four switching modes (d1 = 0.10, d2 = 0.10, d3 = 0.30, d4 = 0.50) under exact volt-second balance. A topology-specific state-space, averaged, and power-flow model is derived from Kirchhoff’s laws; the boost inductor is sized for Continuous Conduction Mode (CCM) operation, and an explicit loss decomposition yields a 97.9% efficiency estimate. Lyapunov, eigenvalue, and boundedness analyses establish stability of the cascaded converter-machine system, and a PLECS framework with complete parameter tables evaluates the 250-kW Interior Permanent Magnet Synchronous Machine (IPMSM) drive, which is benchmarked against recent multiport converters in voltage gain, device count, THD, and efficiency.

Keywords

Multi-Input Multi-Output converter, Direct Torque Control, Space vector modulation, Electric vehicle, Interior Permanent Magnet Synchronous Machine, Continuous Conduction Mode, Non-isolated DC-DC converter, Traction drive.

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