Sensorless Speed Control of BLDC Motor for EV Applications

Adhavan, B (2022) Sensorless Speed Control of BLDC Motor for EV Applications. In: Sustainable Communication Networks and Application. Lecture Notes on Data Engineering and Communications Technologies (93). Springer, Singapore, pp. 359-370. ISBN 9789811666049

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Abstract

The limitation of the commonly used back-emf sensorless detection technique is that it is not possible to control the speed of the BLDC motor over a wide speed range as required in electric vehicles. In particular, it is not possible to control at low speeds due to the presence of noise signals near pulse width modulated (PWM) back-emf zero-crossing points at low speeds. Therefore, the duty-cycle of direct sensorless back-emf technique is limited to less than 100% since a minimum turn-off time is required to get the sample of back-emf and apply control action. In this paper, a microcontroller-based enhanced PWM back-emf zero-crossing detection method is proposed to control the speed of the BLDC motor over a wide speed range. The experimental results are presented in this paper for validation.

Item Type: Book Section
Uncontrolled Keywords: AC motors; Brushless DC motors; Controllers; Electric vehicles; Microcontrollers; Sensorless control; Speed; Traction motors; Back-emf; BLDC motors; Low speed; Microcontroller; Pulse-width-modulated; Sensorless; Sensorless detection; Sensorless speed control; Wide speed range; Zero-crossings
Subjects: D Electrical and Electronics Engineering > Electric and Hybrid Vehicles
Divisions: Electrical and Electronics Engineering
Depositing User: Users 5 not found.
Date Deposited: 28 Jun 2024 09:23
Last Modified: 28 Jun 2024 09:23
URI: https://ir.psgitech.ac.in/id/eprint/663

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