A Simple and Novel Modulation Technique Used to Obtain Output Voltage Having a Frequency Multiple of Input Voltage Frequency

Date

2011-09-10

Author

Salimi, A.
Mansourpour, S.
Ziar, H.
Afjei, E.

Metadata

Show full item record

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

Item Usage Stats

152
views

0
downloads

This paper introduces a new modulation method that can be adopted to obtain various possible output voltages depending on the switching topology and the voltage inputs available. This method is used to obtain a sinusoidal voltage waveform with a frequency which is a multiple of the frequency of the sinusoidal input voltage. There are various applications that need a variable frequency input and a limitation is that three-phase supply is not always available. A good example to this would be single-phase induction motors. Using this method single-phase induction motors can be supplied with a variable frequency source which uses a single-phase fixed-frequency supply and so it can be used in variable speed applications. First the general idea behind this method is explained and its equations and constraint are derived. Next the technique is used to produce the desired voltage that was mentioned and the proper switching topology is explained. Then the method and its equations and constraints arc fully discussed over this particular case. Finally the simulation results are presented and analyzed.

Subject Keywords

AC-AC converter, Frequency converter, Switching, Modulation technique, Single-phase induction motor

URI

https://hdl.handle.net/11511/67779

Collections

Unclassified, Conference / Seminar

Suggestions

OpenMETU
Core

A Parabolic Band Hysteresis Current Controller for Doubly Fed Induction Generators Hamadi, Emad; Mortazavi, S. S. (2011-09-10) A parabolic band hysteresis current controller (PBHCC) for DFIG is proposed in this paper to control the switching frequency variations in rotor side converter (RSC). A generalized online technique is used to determine the set of unique parabolic boundary for any operation speed. The PIHICC then utilized to regulate the current in RSC. In contrast to PI controller, PBHCC shows a very good transient behaviour. Beside that, the steady state performance is improved by reducing the switching frequency considera...
A novel approach to detection of some parameters of induction motors Özlü Ertan, Hatice Gülçin; Colak, Baris (2007-05-05) This paper describes a novel approach for offline stator leakage inductance and online stator resistance estimation that can be used for self-tuning of induction motor drives. The paper briefly describes the theory behind the approach. The proposed methods are experimentally tested on an industrial induction motor and also tested on a washing machine motor designed for variable speed operation. Test results are given and the robustness of the approach is illustrated.
A Near-State PWM Method With Reduced Switching Losses and Reduced Common-Mode Voltage for Three-Phase Voltage Source Inverters Uen, Emre; Hava, Ahmet Masum (2009-03-01) The near-state pulsewidth modulation (NSPWM) method, which reduces the common-mode voltage/current, is proposed for three-phase pulsewidth modulation (PWM) inverter drives. The method is described, its optimal voltage vectors are found, and the sequence that these vectors are applied is determined. Its voltage linearity and de bus and ac output PWM current ripple characteristics are studied. Its output line-to-line voltage pattern is carefully studied with regard to switching transients that may cause overv...
A CMOS High Frequency Pulse Width Modulation Integrated Circuit Sahin, Osman Ulas; Kocer, Fatih (2016-08-05) In this work, a high frequency pulse width modulation (PWM) integrated circuit (IC) designed and implemented in a commercial 0.35 mu m CMOS process is presented. Based on natural sampling method, the proposed PWM IC can generate both a PWM signal and its inverse for arbitrary frequencies up to 5 MHz. The PWM frequency can he adjusted via an external clock and an off-chip capacitor. The duty cycle of the PWM signal can be linearly varied from 5% to 95% by changing the input signal. Thanks to its analog trian...
A High-Performance PWM Algorithm for Common-Mode Voltage Reduction in Three-Phase Voltage Source Inverters Hava, Ahmet Masum (2011-07-01) A high-performance pulsewidth modulation (PWM) algorithm with reduced common-mode voltage (CMV) and satisfactory overall performance is proposed for three-phase PWM inverter drives. The algorithm combines the near-state PWM (NSPWM) method that has superior overall performance characteristics at high modulation index, and MAZSPWM, a modified form of the active zero-state PWM method (AZSPWM1), which is suitable for low modulation index range of operation. Since AZSPWM1 has line-to-line voltage pulse reversals...

Citation Formats

A. Salimi, S. Mansourpour, H. Ziar, and E. Afjei, “A Simple and Novel Modulation Technique Used to Obtain Output Voltage Having a Frequency Multiple of Input Voltage Frequency,” 2011, p. 596, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67779.