A Theoretical Approach in the Design of Single Frame 28 V DC and 270 V DC Dual  Voltage Generator

Jaishankar C.; Thilagar Hosimin Srinivasan; Sreenandan J

doi:10.14429/dsj.74.18328

Jaishankar C. ELECTRICAL DIVSION, CVRDE, CHENNAI- 600 054 https://orcid.org/0000-0001-6279-5919
Thilagar Hosimin Srinivasan Professor, Anna University, Chennai https://orcid.org/0000-0003-4363-9149
Sreenandan J https://orcid.org/0000-0002-8966-0579

DOI: https://doi.org/10.14429/dsj.74.18328

Keywords: AFV, BLDC generator, Dual voltage generator, Simcenter motorsolve

Abstract

Armored Fighting Vehicles (AFVs) generally operate with a 28 V DC electrical system. However, the demand for electrical power in AFVs has exceeded the capabilities of the existing 28V system. The additional load growth
necessitates larger wire sizes, which adds extra weight and cost to the vehicle. Introducing a dual-bus architecture (28 V DC and 270 V DC) can lead to the efficient operation of the electrical system while meeting future demand. This paper presents the design of a Brushless Direct Current (BLDC) Dual Voltage Generator (DVG), which simultaneously outputs two voltages (28 V DC & 270 V DC) from a single frame across a wide operational speed range. The design process includes a detailed description of the individual stages, accompanied by analytical parameters and software-generated results. The modeling and analysis of the generator were carried out using Motorsolve design software. The obtained results are presented and thoroughly discussed in this paper.