Comparison of the Effects of Nonlinearities for Si MOSFET and GaN E-HEMT Based VSIs

Date

2021-07-01

Author

Yuruk, Huseyin
Keysan, Ozan
Ulutas, Baris

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

303
views

0
downloads

Nonlinearities in voltage source inverters (VSIs) such as; dead time, switching time, delay time, voltage drops on the power switches, parasitic capacitance, etc., are considered to be the main sources of the output voltage distortions. These distortions result in low-order harmonics in the output current, which in turn increase core losses and create torque ripples. In particular, for low-speed applications with low-inductance motors, the control performance and the stability of the system degrades substantially, especially when the system operates in the low-torque region. In this work, the effects of these nonlinearities on the phase current and on the current control of the silicon (Si) metal oxide semiconductor field effect transistor (MOSFET) based VSI are investigated with an air cored low inductance permanent magnet synchronous motor. Furthermore, Gallium nitride (GaN) enhancement mode high electron mobility transistor (E-HEMT) based VSI is proposed to overcome this problem. Next, improvements in the current control process are demonstrated by comparing the experimental results obtained by using GaN E-HEMT and Si MOSFET based VSIs. Results show that GaN E-HEMT based VSI is a better choice for applications, which require a high bandwidth control.

Subject Keywords

Current control, Dead time, Gallium nitride (GaN) enhancement mode high electron mobility transistor (E-HEMT) based VSIs, Nonlinearity, Si metal oxide semiconductor field effect transistor (MOSFET) based voltage source inverters (VSIs)

URI

https://hdl.handle.net/11511/90140

Journal

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS

DOI

https://doi.org/10.1109/tie.2020.2996132

Collections

Department of Electrical and Electronics Engineering, Article

Suggestions

OpenMETU
Core

Investigation of parallel-connected GaN E-HEMT VSI-based servo drives Yürük, Hüseyin; Keysan, Ozan; Department of Electrical and Electronics Engineering (2022-1-19) Nonlinearities in voltage source inverters (VSIs) are thought to be the primary cause of output voltage distortions which cause low-order harmonics in the output current. These nonlinearities also considerably degrades control performance and system stability for low-speed applications with low-inductance motors, particularly when the system operates in the low-torque area. The impact of the nonlinearities on the phase current and current control of a silicon (Si) metal-oxide-semiconductor field-effect tran...
Analysis and Characterization of DC Bus Ripple Current of Two-Level Inverters Using The Equivalent Centered Harmonic Approach Ayhan, Ufuk; Hava, Ahmet Masum (2011-09-22) The dc bus PWM ripple current of three-phase two-level voltage source inverters is a function of the PWM method, the load current magnitude, power factor angle, and the modulation index. Thus, the ripple current characteristics are highly involved and difficult to understand. Using the double Fourier integral approach, this paper investigates the ripple current characteristics thoroughly for a wide range of operating conditions and PWM methods. Then, the equivalent harmonic approach is used to lump the ripp...
Performance characteristics of the reduced common mode voltage Near State PWM method Un, Emre; Hava, Ahmet Masum (2007-09-05) The Near State PWM (NSPWM) method, which has low common mode voltage/current is proposed for three-phase voltage source inverter drives. The method is described and its voltage linearity, output current ripple, DC bus current ripple, common mode voltage and output line-to-line pulse patterns are thoroughly studied and compared with classical PWM methods. The theory, simulation, and laboratory experiments illustrate that NSPWM has low common mode voltage, results in less common mode current, has low switchin...
Investigation on Series Active Filter Compensated High Power Grid-Connected Voltage Source Inverters with LCL Filter Usluer, S. Nadir; Hava, Ahmet Masum (2014-09-18) This paper deals with Series Active Filter (SAF) based damping methods for the LCL filters of three-phase, grid connected, low voltage, high power Voltage Source Inverters (VSIs). The inherent resonance problem of LCL filters is damped via passive or active damping methods. Passive damping methods employing damping resistors create significant power losses reducing the overall system's efficiency for high power inverters. Active damping methods, on the other hand, are not applicable due to inverter's limite...
Comparison of Matrix Converter Induction Motor Drive Control Methods Lettl, Jiri; Kuzmanovic, Dragan; Fligl, Stanislav (2011-09-10) In this paper, the implementation of the Field Oriented Control and the Direct Torque Control in matrix converter supplied induction motor drives is analysed, and compared with the implementation in drives supplied by the Voltage Source Inverter. The analysis is accompanied by the results of numerical simulations and experimental implementations of these two control methods.

Citation Formats

H. Yuruk, O. Keysan, and B. Ulutas, “Comparison of the Effects of Nonlinearities for Si MOSFET and GaN E-HEMT Based VSIs,” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, pp. 5606–5615, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/90140.