Evaluation of the Output Voltage Harmonics of Typical PWM Methods in a Dual-inverter Fed Open-End Winding Induction Motor with a Floating-capacitor

This paper examines how a Reversing voltage multilevel inverter (RVMLI) strategy is enforced to develop multilevel inverter fulfilment. This approach has been used SPWM-PD technique to regulate the electrical inverter. It desires numerous less range of carrier signals to deliver gate pulses of switches. Increasing within the levels during this strategy aid in reduction of output voltage harmonics expeditiously and improves power quality at output of the electrical inverter. It wants a lowered quantity of total switches, which is in a position to decreases of switching losses in this process. The Three-phase reversing voltage multilevel inverter of 7- level and 9- level is accomplished for R-load and R-L load and Three Phase Induction Motor. A reversing voltage multilevel inverter of 7- level and 9- level simulation is intended and developed. Mat lab/Simulink outcome is awarded to validate the proposed scheme.

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Research on the Filters for Dual-Inverter Fed Open-End Winding Transformer Topology in Photovoltaic Grid-tied Applications

Energies ◽

10.3390/en12122338 ◽

2019 ◽

Vol 12 (12) ◽

pp. 2338 ◽

Cited By ~ 1

Author(s):

Wang ◽

Zhang ◽

Song ◽

Cao

Keyword(s):

Output Voltage ◽

Design Method ◽

Parameter Design ◽

Equivalent Circuits ◽

Harmonic Suppression ◽

Medium Voltage ◽

Filter Performance ◽

Voltage Harmonics ◽

Inverter Topology ◽

Open End Winding

Owing to the necessity of the transformer for the multi-parallel inverters connected to the medium-voltage (MV) grid, the conventional multi-parallel inverter topology can be reconfigured to the dual-inverter fed open-end winding transformer (DI-OEWT) topology to obtain lower output voltage harmonics, which can reduce the requirement of the filter inductance. However, due to the special structure of the DI-OEWT topology, the arrangement scheme of the filter can be more than one kind, and different schemes may affect the filter performance. In this paper, research on the existing two kinds of filters, as well as a proposed one, for the DI-OEWT topology used in photovoltaic grid-tied applications is presented. The equivalent circuits of these filters are derived, and based on this, the harmonic suppression capability of these filters is analyzed and compared. Furthermore, a brief parameter design method of these filters is also introduced, and based on the design examples, the inductance and capacitance requirements of these filters are compared. In addition, these filters are also evaluated in terms of the applicability for fault tolerance. At last, the analysis is verified through an experiment on a 30 kW dual-three-level inverter prototype.

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Common mode voltage reduction PWM techniques for four-level open end winding induction motor drive with superior quality of output voltage

2016 Biennial International Conference on Power and Energy Systems: Towards Sustainable Energy (PESTSE) ◽

10.1109/pestse.2016.7516496 ◽

2016 ◽

Cited By ~ 1

Author(s):

M. Harsha Vardhan Reddy ◽

T. Bramhananda Reddy ◽

B. Ravindranath Reddy ◽

M. Suryakalavathi

Keyword(s):

Induction Motor ◽

Output Voltage ◽

Motor Drive ◽

Induction Motor Drive ◽

Common Mode ◽

Common Mode Voltage ◽

Open End Winding

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A dual inverter combine boost converter qSBI for open-end winding induction motor

Journal of Science and Technology Issue on Information and Communications Technology ◽

10.31130/jst-ud2021-436 ◽

2021 ◽

pp. 1-5

Author(s):

To Thanh Loi To

Keyword(s):

Fuel Cell ◽

Induction Motor ◽

Output Voltage ◽

Input Voltage ◽

Boost Converter ◽

Turn On ◽

Time Simulation ◽

Low Energies ◽

Power Switches ◽

Open End Winding

A Dual boost inverter for open-end winding induction motor has been used to improve the power of the induction motor and reduce the number of power switches. However, this configuration still has many disadvantages: the ac output voltage is less than dc input voltage and switches on the same leg turn on at the same time must be avoided. To solve this problem, this paper presents a dual inverter combine boost converter qSBI for open-end winding induction motor configuration that is used for low energies such as solar energy, fuel cell, and battery. With the proposed configuration, the ac output is higher than the dc input without a DC-DC converter and the switches on the same leg can turn on at the same time. Simulation and experimental results will be presented to demonstrate the new features.

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Decoupled centric and non-centric PWM techniques for open-end winding induction motor drive

Serbian Journal of Electrical Engineering ◽

10.2298/sjee1803285r ◽

2018 ◽

Vol 15 (3) ◽

pp. 285-300

Author(s):

Mahamkali Ranjit ◽

Bramhananda Reddy ◽

Munagala Suryakalavathi

Keyword(s):

Induction Motor ◽

Output Voltage ◽

Simulation Analysis ◽

Asynchronous Motor ◽

Motor Drive ◽

Switching Frequency ◽

Stator Winding ◽

Induction Motor Drive ◽

Space Vector ◽

Open End Winding

This article proposes the space vector based decoupled centric and non-centric PWM techniques for open-end winding induction motor drive. To make the proposed configuration, 2-coventional inverters are fed on either side of open-circuited stator winding of induction motor. Therefore three level output is achieved. To obtain the control pulses for inverters in the proposed configuration reference sinusoids are used. All the proposed PWM techniques use the equal switching frequency. To obtain the validation for the proposed work various theoretical and simulation analysis is carried out using v/f control and the corresponding output voltage is verified experimentally using 1HP asynchronous motor.

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