scholarly journals Choosing a Power Source of Autonomous Energy-Power Supply of Technological Processes with System Testing for Stability

Helix ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 5133-5138
Author(s):  
Vladimir A. Glukharev ◽  
Dmitry A. Solovyev ◽  
Ivan N Popov ◽  
Andrei A. Verzilin ◽  
Dmitry V. Sivitsky
Keyword(s):  
Power Supply ◽  
Power Source ◽  
System Testing ◽  
Technological Processes

Development of a Gas Turbine Generator On-Board Electric Power Source for MAGLEV Trains

1992 ◽  
Author(s):  
Teruo Washizu ◽  
Teru Morishita ◽  
Shoji Matsuda ◽  
Nobuo Terauchi
Keyword(s):  
Electric Power ◽  
Gas Turbine ◽  
Power Supply ◽  
Mechanical Characteristics ◽  
Power Source ◽  
Test Model ◽  
Passenger Cars ◽  
Maglev Train ◽  
Turbine Generator ◽  
Superconducting Coils

We have been jointly developing an on-board electric power source for MAGLEV trains by applying a 30kW generator for gas turbine hybrid passenger cars. Operating the generator on a test model apparatus simulating the generator installed in a MAGLEV train, we investigated its electrical and mechanical characteristics with the location close to superconducting coils. The effects of magnetic field on the generator’s characteristics are investigated and described in this paper. MAGLEV trains require about a 50kW on-board power supply per car. At present, we are designing a 50kW gas turbine generator on the basis of the 30kW gas turbine generator.

The Necessity of Independent Configuration of the DC Power Supply System Used for Power Supply and Auxiliary Power Supply in Nuclear Power Plant

2018 ◽  
Author(s):  
Zhang Zhichao
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Power System ◽  
Power Supply ◽  
Nuclear Power ◽  
Power Supply System ◽  
Power Source ◽  
Dc Power ◽  
Auxiliary Power ◽  
Ac Power

At present, in the typical design of China’s nuclear power plant, main generation system is connected to the power grid by 500 kV system. 500 kV system as a priority power source, 220kV system as an auxiliary power source. Independent operation of 500kV and 220kV system, improved the reliability of power supply of nuclear power plant. However, the DC 220V power system used to control the 500kV and 220kV system in the switch station of partial nuclear power project is not independently configured, and the design form of one set of DC system is used in the transformer station. In recent years, there are many accidents that AC power enters into the DC power system, resulted in the loss of power source in the transformer station. The loss of external power source in the whole plant is very significant. In this paper, the influence of AC power entering into DC power system on relay protection device is analyzed, the measures to prevent the AC power into DC power system are discussed, the necessity of independent configuration of DC control power system for the 500kV priority power system and 220kV auxiliary power supply system is analyzed.

The Development of a SMPS Monitoring System Based on ZigBee

2013 ◽  
Vol 333-335 ◽  
pp. 1704-1707
Author(s):  
Jun Ho Ko ◽  
Ming Jin ◽  
Sung Ho Park ◽  
Yoon Sang Kim
Keyword(s):  
Power Quality ◽  
Monitoring System ◽  
Medical Devices ◽  
Power Supply ◽  
Power Source ◽  
Temperature Data ◽  
Quality Monitoring ◽  
Monitoring Systems ◽  
Power Quality Monitoring

The rapidly increasing usage of high-powered devices and the high specification in personal and industrial/medical devices has led to a greater demand for a SMPS for high-powered devices. A stable and reliable power source for such devices and research on power quality monitoring systems are needed. To these ends, this paper introduces a SMPS monitoring system based on ZigBee communication. The SMPS monitoring system uses ZigBee to collect the voltage, current, and temperature data from SPMS in real time. The collected data are visually synchronized and the current power supply status is displayed to the operator. In addition, to prevent any decline in the quality of the power, the system gives feedback via smartphone to the operator if errors are detected.

Rail Car Tracking Device Selection and Power Consumption

2008 ◽  
Author(s):  
Robert Gray ◽  
Richard Grisier
Keyword(s):  
Wireless Communications ◽  
Power Consumption ◽  
Lithium Battery ◽  
Power Source ◽  
System Testing ◽  
Gps Technology ◽  
Source Selection ◽  
Will Power ◽  
Tracking Device ◽  
Communications System

Since its introduction, consumer GPS has made the tracking of critical items in the transportation chain more popular. Shipment of items via rail car is one link in the chain that serves to benefit from GPS technology. This paper discusses a wireless communications system suitable for tracking rail cars. In particular, the power source selection and system testing are described. The system was limited to one device and one power source, a battery. Findings show that the lithium battery selected will power the device for one to three years, depending on transmission activity. Recommended areas of additional research include: battery recharging techniques, effects of connecting sensors to the device, and investigating other communications devices as they become available.

scholarly journals Energy-efficient control of a multi-section supercapacitor power supply of an electric drive

2018 ◽  
Vol 161 ◽  
pp. 02002 ◽  
Author(s):  
Vladimir Mozzhechkov
Keyword(s):  
High Voltage ◽  
Electric Drive ◽  
Power Supply ◽  
Energy Efficient ◽  
Mathematical Formulation ◽  
Power Source ◽  
Power Line ◽  
Control Law ◽  
Control Laws ◽  
Efficient Control

A method for synthesizing the control laws of a multi-section supercapacitor power supply of an electric drive is developed. The synthesized control law for an electric drive realizes the prescribed motion and minimizes the required capacitance of the power source. It is achieved through optimal disconnection and connection to the power line of the drive at designated times of one of the power supply sections. Reduction of the required capacitance of the power supply is achieved through a fuller discharge of some of its sections in motion conditions requiring a low level of electrical voltage and saving high voltage in other sections for the respective motion conditions. A mathematical formulation of the problem and a method of its solution is proposed. An example of the implementation of the proposed method is considered.

scholarly journals Research on battery capacity reliability of intelligent power supply equipment

2021 ◽  
Vol 252 ◽  
pp. 02012
Author(s):  
Zikuo Dai ◽  
Yan Xu ◽  
Kejian Shi ◽  
Yang You ◽  
Bingxin Li
Keyword(s):  
Power Supply ◽  
Power Source ◽  
Normal Operation ◽  
Battery Capacity ◽  
Emergency Power ◽  
Supply Equipment ◽  
Train Dispatching ◽  
Reliable Power Supply

Battery is not only the power source or emergency power supply for many ships, but also the essential emergency power supply for train command and dispatching, post and telecommunication, bank operation, etc. The capacity of battery will be directly related to the normal operation of ship train dispatching, post and telecommunication and bank operation. At the same time, the battery is also the last guarantee for the safe and reliable power supply of intelligent power supply equipment, so it is necessary to study the reliability of battery capacity

scholarly journals Simulation of the pump-battery power supply control system based on the unloading machine

2020 ◽  
Vol 164 ◽  
pp. 01004 ◽  
Author(s):  
Alexander Rybak ◽  
I Tsibriy
Keyword(s):  
Control System ◽  
Numerical Experiment ◽  
Power Supply ◽  
Operation Mode ◽  
Power Source ◽  
Design Parameters ◽  
Hydraulic Systems ◽  
Original Design ◽  
Battery Power ◽  
Functional Features

The aim of this article is to create a control system for a constant hydraulic power source pressure, a pump -battery power source equipped with an original design of the hydraulic pump discharge machine that provides relay switching of its operation mode. This aim is achieved by using a simulation method based on the application of volumetric stiffness theory of hydraulic systems and their elements. As a result of a numerical experiment conducted by solving the equations that make up the mathematical model of power supply, its main technical characteristics and the influence of its main design parameters on its functional features and operational properties are obtained. The obtained results showed that by changing the various design parameters of unloading machine, it is possible not only to change the upper (maximum) and lower (minimum) values of the battery charging pressure, but also to adjust their difference depending on the requirements for the power source. The main result of this study is that as a result of a numerical experiment, it is proved that the unloading machine provides a clear relay switching of the pump operation mode from unloading to operating mode and Vice versa. The identified properties make a very promising use of a pump -battery power source in the hydraulic systems of mobile machines and process equipment.

The Design of High Voltage DC Power Supply of 4.6GHZ/500MW LHCD

2011 ◽  
Vol 135-136 ◽  
pp. 1027-1036 ◽  
Author(s):  
Xu Hao ◽  
Yi Yun Huang
Keyword(s):  
Steady State ◽  
Power Supply ◽  
Power Supply System ◽  
Heating System ◽  
Power Source ◽  
Supply System ◽  
Current Drive ◽  
Lower Hybrid ◽  
Dc Power ◽  
Lower Hybrid Current Drive

The steady-state and transient performances of the power supply system of LHCD (Lower Hybrid Current Drive) heating system are highly demanded which makes it difficult to design the power source. In this thesis, the method of designing the 4.6GHZ/6MW power source of LHCD of EAST is discussed. And the results of the experiment are provided and some special characteristics are analysed to prove the accuracy of the method.

Sign in / Sign up

Export Citation Format

Share Document