Effect of pulse width of middle-coil current on deformation behavior in electromagnetic tube forming under two-stage coils system

2020 ◽  
Vol 110 (5-6) ◽  
pp. 1139-1152 ◽  
Author(s):  
Xiao Zhang ◽  
Shaowei Ouyang ◽  
Xiaoxiang Li ◽  
Liang Li ◽  
Fangxiong Deng
Keyword(s):  
Deformation Behavior ◽  
Pulse Width ◽  
Two Stage ◽  
Coil Current ◽  
Tube Forming

scholarly journals Enhanced Performance of Induction Motor with Direct Field Oriented Control Drive using Space Vector Pulse Width Modulation

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1052-1057
Keyword(s):  
Pulse Width ◽  
Management Strategy ◽  
Pulse Width Modulation ◽  
Transient Condition ◽  
Field Oriented Control ◽  
Coil Current ◽  
Management Framework ◽  
Dynamic Execution ◽  
Relationship Of ◽  
Fast Field

This paper exhibits 3 level Neutral purpose Clamped electrical converter continuing choice motor with Direct Field organized management drive victimization house vector beat breadth amendment framework. the final examination of various degrees of surprised electrical converter for minimisation of torsion swell in AN acknowledgment motor. In AN enrollment motor reach extraordinary execution in the meantime transient condition, a prompt field organized management framework is completed. within the prompt field organized management strategy, decoupling of the torsion and alter conveyance of title parts of stator coil current, and perfection of dynamic execution within acknowledgment motor. The essential house vector beat breadth amendment system is related to truthful purpose cut inverter(NPC) in inference of location torsion. The planned procedure offer AN improved introduction in alteration of torsion swell strategy. the fast field masterminded management of two level svpwm arrange is differentiated and planned 3-level svpwm plot. torsion swell of the acknowledgment motor is compelled in victimization svpwm mostly direct field organized management methodology. The propagation results square measure shown to demonstrate relationship of 2L and three level FOC management victimization svpwm framework

scholarly journals Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

2020 ◽  
Vol 10 (1) ◽  
pp. 660
Author(s):  
Basem E. Elnaghi ◽  
Mohamed E. Dessouki ◽  
M. N. Abd-Alwahab ◽  
Elwy E. Elkholy
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Sine Wave ◽  
Boost Converter ◽  
Innovative Technology ◽  
Two Stage ◽  
Phase Inverter ◽  
Pv Systems ◽  
Single Phase Inverter

This paper offers a two-stage boost converter for a single-phase inverter without transformer for PV systems. Each stage of the converter is separately controlled by a pulse width modulated signal. A Simulink model of the converter using efficient voltage control topology is developed. The proposed circuit performance characteristics are explained and the obtained simulation results are confirmed through the applied experiments. Moreover, this paper has examined the control circuit of a single-phase inverter that delivers a pure sine wave with an output voltage that has the identical value and frequency as a grid voltage. A microcontroller supported an innovative technology is utilized to come up with a sine wave with fewer harmonics, much less price and an easier outline. A sinusoidal pulse width modulation (SPWM) technique is used by a microcontroller. The developed inverter integrated with the two-stage boost converter has improved the output waveform quality and controlled the dead time as it decreased to 63 µs compared to 180 µs in conventional methods. The system design is reproduced in Proteus and PSIM Software to analyze its operation principle that is confirmed practically.

scholarly journals Comparison between two-stage and three-stage Peltier thermoelectric coolers driven by pulse width modulation

2020 ◽  
Vol 1528 ◽  
pp. 012020
Author(s):  
Daniel D. Kamasi ◽  
Muhammad Zainulloh ◽  
Ahmad Nadhir ◽  
Setyawan P. Sakti
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Two Stage ◽  
Thermoelectric Coolers

Two-stage converter with remote state pulse width modulation for transformerless photovoltaic systems

2014 ◽  
Vol 108 ◽  
pp. 260-268 ◽  
Author(s):  
M.C. Cavalcanti ◽  
F. Bradaschia ◽  
P.E.P. Ferraz ◽  
L.R. Limongi
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Photovoltaic Systems ◽  
Two Stage

Research on Limit-Trajectory Over-Modulation Strategy of Two Stage Matrix Converter

2014 ◽  
Vol 599-601 ◽  
pp. 1648-1651
Author(s):  
Jing Lu ◽  
Ming Shen
Keyword(s):  
Pulse Width ◽  
Control Algorithm ◽  
Pulse Width Modulation ◽  
Poor Quality ◽  
Matrix Converter ◽  
Two Stage ◽  
Memory Space ◽  
Look Up Table ◽  
Linear Modulation

Aim at solving the problem is poor quality of waveforms and that of complicated modulation strategy in two stage matrix converter. The method is that Limit-Trajectory over-modulation strategy is adopted in inverter to ensure linear modulation in all over-modulation regions and space vector pulse width modulation is adopted in rectifier. This simpler control algorithm reduces memory space and linear calculation is instead of look-up table. Simulation show that the voltage transfer ratio can be improved from 0.866 to 0.95 and the quality of output waveforms is greatly enhanced.

Sign in / Sign up

Export Citation Format

Share Document