Development of a power supply for the pulse mig arc welding with the changes of output current polarity

2005 ◽  
Author(s):  
Tae-Jin Kim ◽  
Geun-Mie Rim ◽  
C.-U. Kim
Keyword(s):  
Power Supply ◽  
Arc Welding ◽  
Output Current ◽  
Current Polarity

How Dynamic Properties of Inverters Influence Electrode Metal Transfer to the Weld Pool, and Change Structural and Phase Composition of Welded Joints Produced via High Alloyed Electrodes

2018 ◽  
Vol 927 ◽  
pp. 93-98
Author(s):  
D.P. Il’yaschenko ◽  
Dmitry A. Chinakhov ◽  
R.A. Mamadaliev ◽  
V.I. Danilov ◽  
А.A. Saranchin
Keyword(s):  
Power Supply ◽  
Arc Welding ◽  
Dynamic Properties ◽  
Structural Systems ◽  
Metal Structures ◽  
Quality Literature ◽  
Welding Stability ◽  
Supply Equipment ◽  
The Impact ◽  
Electrode Metal

Covered-electrode arc welding has been currently widely-spread in assembly and maintenance technologies, as soon as it is a reliable tool, which helps get safe permanent joints in critical structural systems applied in Arctic. It is of burning importance to further enhance accuracy in methods which assess the impact of dynamic properties of power supply equipment with various forms of energy conversion on a consumable electrode welding stability and quality. Literature review [1–11] confirms that objectives, aimed at improving critical (in terms of extreme work and low temperatures) metal structures reliability, demand innovative approaches, i.e.:

scholarly journals Optimization of Energy Management Strategy for the EPS with Hybrid Power Supply Based on PSO Algorithm

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 428
Author(s):  
Bin Tang ◽  
Di Zhang ◽  
Haobin Jiang ◽  
Yinqiu Huang
Keyword(s):  
Energy Management ◽  
Power Supply ◽  
Power Distribution ◽  
Management Strategy ◽  
Pso Algorithm ◽  
Output Current ◽  
Energy Management Strategy ◽  
Power Requirement ◽  
Rule Based ◽  
Hybrid Power

The traditional vehicle power supply is unable to meet the power requirement of electric power steering system (EPS) in heavy-duty vehicles at low speeds. A novel EPS with hybrid power supply (HP-EPS) is constructed in this paper, and a new optimized rule-based energy management strategy of hybrid power supply system is designed. The strategy determines the power distribution of the vehicle power supply (VPS) and super capacitor (SC), as well as the charging or discharging of SC. Furthermore, to minimize the output current fluctuation of the VPS, the optimization model of parameters in the strategy is established and the particle swarm optimization algorithm (PSO) algorithm is applied to optimize the rules in the energy management strategy. The verification for the designed energy management strategy is carried out in MATLAB/Simulink and results show that the output current peak of VPS decreases by 33% and its fluctuation depresses significantly. In addition, the SC is charged timely and fast, which is beneficial to guarantee enough state of charge (SOC) of SC. In conclusion, the optimized rule-based energy management strategy used for the HP-EPS system can meet the current requirement of EPS and effectively reduce the peak and fluctuation of the VPS output current.

A Dual-Loop-Based Parallel Power Supply System

2013 ◽  
Vol 655-657 ◽  
pp. 1609-1613
Author(s):  
Yu Hao Zhang
Keyword(s):  
Power Supply ◽  
Output Voltage ◽  
Power Supply System ◽  
Control Method ◽  
Supply System ◽  
Digital Calibration ◽  
Numerical Control ◽  
Output Current ◽  
Loop Control ◽  
High Efficient

The dual-loop control method, in which inner-loop is the current and outer-loop is the voltage, is proposed to design a high-efficient precise numerical control parallel power supply system, it operates at input voltage of 24V, output voltage of 6-12V and output current of 0-4A. The current ratio of the parallel circuits can be set arbitrarily. Precise adjustment of output current and improvement of efficiency are realized by width modulation and synchronous buck-topology switching power supply, the output current error is smaller than 20mA and DC-DC conversion efficiency is up to 90%; to make output voltage error smaller than 30 mV and the current-sharing error smaller than 0.5%, digital calibration technology and PID control algorithm are used. In addition, this system is equipped with the function of overload protection, double-source redundant heat standby and turn-off, etc.

Research on Output Current Sharing and Synchronous Start-Up in Parallel Power Supply Modules

2014 ◽  
Vol 1028 ◽  
pp. 262-266
Author(s):  
Chao Huang ◽  
Jian Jun Liao ◽  
Hai Sheng Yu
Keyword(s):  
Power Supply ◽  
Power Supplies ◽  
Output Current ◽  
Advantages And Disadvantages ◽  
Current Sharing ◽  
Large Current ◽  
Start Up ◽  
Distributed Power System ◽  
And Performance ◽  
Switching Mode

With the development of the distributed power system, the paralleled switching mode power supplies are becoming more and more important for large current load. However, paralleled system usually requires load sharing to equalize stresses, and while a lot of techniques have been used, there are many compromises between complexity and performance. This paper introduces the superiority of the power supply modules in parallel, discusses both the advantages and disadvantages of the usual current sharing methods. Finally, some suggestions to enhance redundancy and reliability for current sharing modules have been proposed.

scholarly journals Improving Electrical Efficiency of Edm Power Supply

2014 ◽  
Vol 64 (1) ◽  
pp. 88-93
Author(s):  
Emanoil Toma ◽  
Carmen Mihaela Simion
Keyword(s):  
Current Pulse ◽  
Power Supply ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Resonant Converter ◽  
Output Current ◽  
Paper Briefly ◽  
Electrical Efficiency ◽  
Pulse Generators ◽  
Set Up

Abstract This paper briefly presents the principal types of Pulse Generators for Electrical Discharge Machining and ways to improve electrical efficiency. A resonant converter with series-parallel LCC circuit, for EDM applications, was analyzed by PSpice simulation. The performances of EDM Power Supply were improved by adding an energy recovering - voltage limiter circuit. The shape of current pulse was changed by adding a supplementary MOSFET Switch in parallel with the gap. Two or more converters can be parallelized, in this way output current can be changed. A bloc-schema was conceived for EDM experimental set up

scholarly journals A high-current, high-voltage power supply with special output current waveform for APS injector synchrotron dipole magnets

1992 ◽  
Vol 39 (4) ◽  
pp. 1175-1179
Author(s):  
M. Fathizadeh ◽  
O.D. Despe ◽  
D.G. McGhee ◽  
F.E. Mills ◽  
L.R. Turner
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
High Current ◽  
Current Waveform ◽  
Output Current ◽  
High Voltage Power Supply

Power Supply tor A-C Arc Welding

1945 ◽  
Vol 64 (3) ◽  
pp. 116-120 ◽  
Author(s):  
A. U. Welch ◽  
R. F. Wyer
Keyword(s):  
Power Supply ◽  
Arc Welding
Sign in / Sign up

Export Citation Format

Share Document