Minimizing Ohmic Loss and Supply Voltage Variation Using a Novel Distributed Power Supply Network

2006 ◽  
Author(s):  
M. Budnik ◽  
K. Roy
Keyword(s):  
Power Supply ◽  
Supply Voltage ◽  
Ohmic Loss ◽  
Supply Network ◽  
Distributed Power ◽  
Voltage Variation

Influence of network parameters on the accuracy of control and diagnostics of resistance welding

2021 ◽  
pp. 46-52
Author(s):  
Keyword(s):  
Power Supply ◽  
Supply Voltage ◽  
Resistance Welding ◽  
Control Algorithms ◽  
Supply Network ◽  
Active Resistance ◽  
Network Parameters ◽  
Welding Automation ◽  
Parasitic Parameters ◽  
Automation Control

The influence of parasitic parameters of the power supply network (active resistance and inductance) on the accuracy of resistance welding diagnostics is estimated. Evaluation of the effectiveness of various control algorithms when operating under conditions of fluctuations in the supply voltage is performed. The methodic for determining the parasitic parameters of the network is presented. Keywords: resistance welding, automation, control and diagnostics. [email protected]

The Researching of a Power Supply Design Scheme for T/R Assemblies

2014 ◽  
Vol 556-562 ◽  
pp. 1802-1805
Author(s):  
Wei Chang Wang ◽  
Jin Cheng Zhao
Keyword(s):  
Energy Storage ◽  
Power Supply ◽  
Power Supply System ◽  
Supply Voltage ◽  
Load Sharing ◽  
Supply System ◽  
High Peak ◽  
Storage Capacitor ◽  
Distributed Power ◽  
Design Scheme

This paper presents a distributed power supply scheme for T/R assemblies which are the key pate of the active phased radar. Based on the analysis of the characteristics and design difficulties of T/R assemblies, the power supply uses the energy storage capacitor to provide the high peak current during the pulse, and uses the way of distributed power supply scheme to improve the reliability of power supply system. The power supply designed using this method can achieve load sharing for power supply Assemblies and effectively improve the accuracy of supply voltage.

scholarly journals Electrical Device Protection from Overvoltage in a DC Power Supply Network: Fast-acting Protection, Realized by an “Artificial” Short Circuit in the Input of the Protected Device

2020 ◽  
Vol 10 (1) ◽  
pp. 5314-5319
Author(s):  
S. K. Filipova-Petrakieva ◽  
Y. M. Shopov
Keyword(s):  
Power Supply ◽  
Supply Voltage ◽  
Classical Method ◽  
Short Circuit ◽  
Circuit Breaker ◽  
Supply Network ◽  
Power Supply Voltage ◽  
Dc Power ◽  
Dc Power Supply ◽  
Fast Acting

In the present paper a protective device based on the so-called “artificial” short circuit in the input of the network, is proposed. To ensure the necessary time for switching on the protection, the increased power supply voltage is delayed to reach in the input of the protected device by additional inductance L, which is connected in series to the power supply. As a result of this forced short circuit, the DC-power supply is switched off by a standard protective circuit-breaker. The short circuit is realized by a fast-acting semi-conductor device (e.g. diac + thyristor, etc.). The controlling signal is formed as a voltage across a capacitor that is a part of RC-circuits connected in parallel to the DC-power supply network. An analytical expression for this voltage, using a classical method for transient analysis, is obtained. The main aim is to determine the exact time of switching on the protection. The research is confirmed with simulations by OrCAD PSpice under the exact values of the elements in the RC-circuits considered. Two rapid increase cases in the power supply voltage are considered: positive jump and linear increase. The suggested solution is applicable for overvoltage protection of different electrical devices. The electrical scheme, based on the electronic components, ensures a fast-acting breaking, which guarantees secure protection. Based on the analytical expressions, the synthesis of the circuit for control and protection is made and the respective values of its elements are calculated.

scholarly journals A technical solution for increasing the reliability of the phase-splitters of AC electric locomotives

2021 ◽  
Vol 2061 (1) ◽  
pp. 012011
Author(s):  
N P Astashkov ◽  
V A Olentsevich ◽  
Yu I Karlina ◽  
B O Kuznetsov ◽  
N A Kuznetsova
Keyword(s):  
Power Supply ◽  
Political Development ◽  
Supply Voltage ◽  
Electrical Equipment ◽  
Operating Conditions ◽  
Transport Infrastructure ◽  
Asia Pacific ◽  
Rolling Stock ◽  
Technical Solution ◽  
Voltage Variation

Abstract Russian Railways OAO is developing a program of the expansion of the Eastern polygon until 2030, the modernization of the transport infrastructure of which is the most important task for the economic and political development of the country. In the near future it is planned to complete the drawing up of a detailed planning schedule of the main stages of construction and parameters of reconstruction of the infrastructure of the Baikal-Amur Mainline and the Trans-Siberian railway. This will not only help to expand access to the markets of the Asia-Pacific region, but will also provide an opportunity to draw more income through an international transit East – West route. The tasks of increasing the reliability of electric rolling stock are brought to the forefront. The implementation of these tasks will reduce the cost of operating and repairing technological equipment. The development of technical means compatible with power supply systems and taking into account the operating conditions of electrical equipment is an urgent task. Power supply of auxiliary machines on all domestic electric locomotives is carried out without the stabilization of the voltage value and balance. At the same time, in order to ensure the reliability of the electric drive motors themselves when operating in the entire range of supply voltage variation, their rated power is increased by 25-50%. Therefore, auxiliary machines on all domestic electric locomotives of alternating current have increased overall dimensions and weight, but the circuit design of the drive system is simple and is presented in the article.

Evaluation of SRAM-Core Susceptibility against Power Supply Voltage Variation

2012 ◽  
Vol E95-C (4) ◽  
pp. 586-593 ◽  
Author(s):  
Takuya SAWADA ◽  
Taku TOSHIKAWA ◽  
Kumpei YOSHIKAWA ◽  
Hidehiro TAKATA ◽  
Koji NII ◽  
...  
Keyword(s):  
Power Supply ◽  
Supply Voltage ◽  
Power Supply Voltage ◽  
Voltage Variation
Sign in / Sign up

Export Citation Format

Share Document