This paper gives a comprehensive look into the field oriented control (FOC) of surface-mounted permanent magnet synchronous motors (SPSMs) being driven by GaN inverters. Field-oriented control has received a lot of attention in recent years because of its ability to give accurate control of motor performance, making it ideal for a variety of industrial applications. Adding to this, the use of wide band gap devices such as GaN in the inverter feeding the motor provides advantages such as compact size, high power density, high switching operation, and thus improved efficiency. The study includes simulation results of the SPMSM drive employing the FOC technique with the use of a GaN inverter. The overall functionality of the model under steady state was simulated and verified using PLECS software.
Lithium-ion (Li-ion) batteries have indeed become the battery technology of choice for electric vehicle(EV) manufacturers for several compelling reasons such as high energy density, low weight, fast charging and many more. Accurate monitoring of battery states is crucial for optimizing the energy storage management system of electric vehicles. Battery state monitoring helps ensure efficient operation, prolonged battery life, and enhance safety. In this paper, we have proposed a simple method of combined state of charge (SOC) and state of energy (SOE) estimation. In this work, we begin with modeling of Li-ion cell using the 2RC model, then Adaptive Extended Kalman Filter (AEKF) for SOC estimation and Extended Kalman Filter (EKF) for SOE estimation which is implemented in MATLAB/Simulink. Lastly, the simulation results demonstrate the algorithm's precision and suitability.
Wide band-gap (WBG) semiconductors offer a great advantage by providing better switching and lower losses, making them ideal for higher power density and higher efficiency applications. Better switching levels are provided by some common wide bandgap materials such as Gallium Nitride (GaN) and Silicon Carbide (SiC) compared to other FETs. The GaN power device's output performance is characterized by its transfer characteristics, output characteristics, switching characteristics, and efficiency. In this study, we used a GaN MOSFET as a switch in a boost converter operating at a high switching frequency. The paper's goal is to examine the characteristics of GAN063-650WSA from Nexperia and its application as a switch in power converters.
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