Open AccessDroop control method in power converter system for balancing state‐of‐charge of energy storage units in EV
Author(s) -
Jangir Priyanka,
Sangwan Venu,
Kumar Rajesh,
Rathore Akshay Kumar
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.9271
Subject(s) - voltage droop , interfacing , state of charge , battery (electricity) , computer science , power (physics) , matlab , energy storage , microgrid , automotive engineering , electrical engineering , voltage , control theory (sociology) , control (management) , engineering , voltage source , computer hardware , operating system , physics , quantum mechanics , artificial intelligence
A proficient power management between proposed multiple battery units in an EV is entailed to achieve the prolonged lifespan of batteries and to impede these from overcharging and overburdening during operation. At first, system configuration with three batteries has been developed for BEV architecture. Based on availability of their state‐of‐charge (SoC), power‐sharing among these battery units is realised by applying a droop control method on power converter system (PCS), which acts as interfacing between battery units and powertrain of EV. To get optimal use of these supplies, balancing of SoCs among these parallel modules is performed by gradual equalisation of power using droop control. Droop control is implemented for both charging and discharging modes of operation using a bi‐directional converter. SoC‐based droop control method is performed on MATLAB/Simulink model included three energy storage units (ESUs) with PCS and simulation results at the constant speed of EV are shown to demonstrate and verify the approach.