Small-signal analysis of boost converter fed permanent magnet dc (PMDC) motorfor Electric vehicle applications is performed and hardware implementation is realized in this paper. Extensive analysis is performed to identify the relevant steady-state and dynamic features of the proposed system with small-signal linearization and relevant transfer functions are formulated. The non-linear equations of the system are derived and then linearized around a stable operating point to construct a small-signal model. Transfer functions relating the control of the converter to the motor speed and control to input current are derived symbolically using computerized symbolic algebra in MathCAD. The control-to-output transfer functions obtained by introducing perturbation in state variables, equating ac and dc quantities and proceed with ac quantities. The principle of operation, operation modes, small-signal analysis, experimental verification and the effectiveness of the speed control are discussed and presented. The experimental prototype is implemented using dSPACE DS1103-based digital signal processor. The speed control dynamics and transient response are investigated under sudden load changes. The overall system performance is assessed and verified experimentally based on a speed feedback control scheme for validation purposes.
Small-Signal Analysis and Hardware Implementation of Boost Converter Fed PMDC Motor for Electric Vehicle Applications
2021-09-02
doi:10.36909/jer.v9i3B.10213
Journal of Engineering Research; Vol 9 No 3B (2021): Journal of Engineering Research ; 2307-1885 ; 2307-1877 ; 10.36909/jer.v9i3B
Article (Journal)
Electronic Resource
English
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