A Proposal for Improving Efficiency of Inverter Driven Electrical Motors

Date

2011-07-28

Author

Ertan, Hulusi Bülent

Metadata

Show full item record

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

Item Usage Stats

29
views

0
downloads

Conventional inverter output has PWM output. This pulsed output waveform reduces insulation life time, contributes to quick degradation of the bearings and also is often source of acoustic noise. Furthermore, losses of PWM inverter-driven motors increase. In this paper a novel topology is proposed which is capable of generating a sinusoidal waveform, with low harmonic distortion. If the proposed method is used for driving motors, motor efficiency increases due to reduced losses and lifetime of the motor may be extended. The paper describes the topology used for generating power-level sinus output and how it works. The proposed converter is implemented and tested with resistive and inductive loads. The converter is shown to have the desired properties and the efficiency is shown to be above 95%. The tests on the converter while switching the load on and off illustrate that the converter output voltage is not affected at all from load switching.

Subject Keywords

AC Machines, Energy efficiency, Inverters, Motor drives, Power conversion, Pulse width modulated converters

URI

https://hdl.handle.net/11511/53733

Collections

Graduate School of Natural and Applied Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Sinus Output 3-Phase Inverter Topology for Improved Drive Efficiency Ertan, Hulusi Bülent (2014-09-24) Traditionally electrical drives and uninterruptable power supplies generate pulse width modulated outputs. Harmonic content of such waveforms are known to cause problems. Therefore, it is worthwhile to investigate 3-phase sinus output topologies, which can compete with traditional inverter topologies, regarding performance and cost. In this paper, first some topologies for producing single-phase sinus output are reviewed. Then, the possibility of using these single-phase units for producing 3-phase output i...
Comparative Power Loss Analysis of DCM Flyback Transformer Based on FEA, Numeric Simulation, Calculation and Measurements Onay, Halil; Suel, Volkan; Ozgen, Tayfun; Hava, Ahmet Masum (2019-01-01) The flyback transformer is a crucial part of the flyback converter, which has the highest portion of total power losses for most applications. Accurately prediction of the power losses due to flyback transformer early in the design stage provides an advantage about revealing reliable prototypes. In this paper, several loss prediction methods are applied for a 40W universal input and single output DCM flyback transformer as; analytical calculations via well-known Steinmetz and Dowell's formulas, a simulation...
Modeling and Simulation of a Boost DC/AC Inverter fed Induction Motor Drive SÜRGEVİL, TOLGA (2011-09-10) Single-stage three-phase boost dc/ac inverters can provide sinusoidal ac output voltages which arc greater than input dc voltage without needing an intermediate dc voltage boost stage. Such a topology is cost-effective due to reduced switch count and it is suitable for compact design These unique features of this type of inverter makes it a suitable choice in many applications such as uninterruptible power supplies, variable speed ac drives, and some distributed power generation schemes. This paper aims to ...
Topology and PWM Method Dependency of High Frequency Leakage Current Characteristics of Voltage Source Inverter Driven AC Motor Drives Cetin, N. Onur; Hava, Ahmet Masum (2012-09-20) In PWM inverter based AC motor drives, high frequency common-mode voltage (CMV) causes high frequency common-mode current (CMC, motor leakage current). With its magnitude reaching ampere levels, the CMC can induce bearing failures, drive nuisance trips, EMC issues etc. The CMC is dependent on the inverter topology (two or three-level), PWM method (pulse pattern), and the filters if active/passive mitigation methods used. This paper investigates the CMV/CMC properties of the two and three-level VSIs [with an...
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...

Citation Formats

H. B. Ertan, “A Proposal for Improving Efficiency of Inverter Driven Electrical Motors,” 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53733.