Evaluating the Possibility to Implement Autonomous Power Supply from a Hydrogenerator as Applied to Dispatching Systems for Housing and Utility Services

Vestnik MEI ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 67-75
Author(s):  
Georgiy G. Ilyin ◽  
Keyword(s):  
Control System ◽  
Water Supply ◽  
Power Supply ◽  
Large Diameter ◽  
Supply Networks ◽  
Periodic Maintenance ◽  
Utility Services ◽  
Storage Batteries ◽  
The Cost ◽  
And Control

Currently, we are witnessing active development of urban building construction, which dictates new requirements for the infrastructure of water supply and sanitation. These requirements are aimed at improving the reliability and compliance with stringent environmental standards. Dispatch supervision and control of water supply networks are among the key tasks that have to be solved under such conditions. The problem of implementing such systems lies in difficulty of setting up power supply to the equipment used in these systems. The power supply of such systems is as a rule provided by using storage batteries, which entails the need for periodic maintenance of these systems and thereby increases the cost of their operation. The problem can be solved by using an autonomous source of electricity. The energy of the water flow in the pipeline is proposed to be used as such source. The possibility of setting up an autonomous dispatch control system for housing and utility services based on a hydrogenerator is estimated. The study is carried out by analyzing the hydraulic parameters of a bypass pipeline installed on a large-diameter pipeline. To determine the flow velocity and pressure in the bypass pipeline, the fluid flow is modeled in it. The modeling results and their subsequent analysis made it possible to calculate the range of power produced by the hydrogenerator and estimate the possibility of setting up an autonomous dispatch control system.

Design a PLC-Based Variable-Frequency Governing Pressure-Constant Water-Supply Control System

2014 ◽  
Vol 1044-1045 ◽  
pp. 755-758
Author(s):  
Xin Hui Yang
Keyword(s):  
Control System ◽  
Water Supply ◽  
Pressure Sensors ◽  
Variable Frequency ◽  
Pipe Network ◽  
Monitoring And Control ◽  
Control Software ◽  
Industrial Control ◽  
Time Basis ◽  
And Control

This paper provides a design for a PLC-based, variable-frequency governing, pressure-constant, automatic water-supply control system. This design is based on the current situations at the water supply plants found in small and medium cities in China. In this control system, the pressure signal across the pipe network is acquired by pressure sensors and then transmitted to PID modules in the PLC in order to control switching between pump motors. At the same time, the PLC is connected with a personal computer for industrial control purposes. On this computer, monitoring and control software has been installed in order to monitor and control the pressure-constant water-supply system on a real-time basis.

scholarly journals An Adaptive Differential Protection and Fast Auto-Closing System for 10 kV Distribution Networks Based on 4G LTE Wireless Communication

2019 ◽  
Vol 12 (1) ◽  
pp. 2 ◽  
Author(s):  
Wen An ◽  
Jun Jie Ma ◽  
Hong Yang Zhou ◽  
Hong Shan Chen ◽  
Xu Jun ◽  
...  
Keyword(s):  
Control System ◽  
Wireless Communication ◽  
Power System ◽  
Power Supply ◽  
Distribution Networks ◽  
Fault Isolation ◽  
Differential Protection ◽  
Current Differential Protection ◽  
Protection And Control ◽  
And Control

With the development of wireless communication technology and computer technology, more and more smart technologies have been applied in electricity distribution networks. This paper presents an adaptive current differential protection and fast auto-closing system for application in 10 kV distribution networks in China Southern Power Grid. The current differential protection can adaptively change its settings according to the topology change of the primary distribution networks, thus the system effectively reduces the operation and maintenance cost of the power distribution network. In order to restore the power supply for the healthy part of the 10 kV networks quickly after a power system fault is cleared, the protection and control system provides wide area control function for automatic fault isolation and automatic switching. The traditional overcurrent protection and control system have no fault location function, it may take several minutes or even hours to manually locate a fault and then restore the power supply. Compared with the protection and control system of the traditional 10 kV distribution networks, the system developed can locate and isolate faults within 900 ms (assuming that the operating time of the load switch is 700 ms), and can quickly restore power supply in less than one second after a power system fault is cleared.

PSO Applied to Reduce the Cost of Energy in Water Supply Networks

2013 ◽  
Vol 409-410 ◽  
pp. 703-706 ◽  
Author(s):  
Bruno Melo Brentan ◽  
Edevar Luvizotto Jr. ◽  
Lubienska Cristina L.J. Ribeiro
Keyword(s):  
Water Supply ◽  
Extended Period ◽  
Water Supply Systems ◽  
Operational Parameters ◽  
Supply Networks ◽  
Water Pumping ◽  
Cost Of Energy ◽  
Pumping Stations ◽  
The Cost ◽  
Supply Systems

The growth of urban population and subsequent expansion of the cities impose difficulties of gather a reliable water supply systems that attend the fluctuations of demand throughout the day, and their operation with appropriate hydraulic and operational parameters. The search of better routines for water pumping stations with both starting and stopping of pumps or use of variable speed devices has become increasingly common, and the motivation of this search is found in the need for energy saving. But the task is arduous and becomes fertile field for the application of modern techniques and robust optimization. Noteworthy are currently those that seek their inspiration in nature systems, such as Particle Swarm Optimization, which is based on intelligence of groups, such as schools of fish or swarms of bee. By this way, the present work aims to contribute to the topic, developing a hybrid algorithm (simulator-optimizer) for determination of optimized routines for pumping station i.e., routines that seek the best operational routine for an extended period of 24 hours.

Power supply and control system for 40 T class hybrid magnet system

1996 ◽  
Vol 32 (4) ◽  
pp. 2490-2494 ◽  
Author(s):  
M. Tezuka ◽  
T. Kojo ◽  
M. Naito ◽  
E. Toyoda ◽  
S. Hanai ◽  
...  
Keyword(s):  
Control System ◽  
Power Supply ◽  
Hybrid Magnet ◽  
Magnet System ◽  
And Control

scholarly journals SELECTION OF THE LAYOUT OF THE MAIN SYSTEMS OF A HEAVY MULTICOPTER TAKING INTO ACCOUNT THE REQUIREMENTS OF AVIATION REGULATION

2021 ◽  
pp. 54-66
Author(s):  
Aleksey Trofimov ◽  
◽  
Sergej Postnikov ◽  
Keyword(s):  
Control System ◽  
Power Supply ◽  
Power Supply System ◽  
Urban Environments ◽  
Supply System ◽  
Large Cities ◽  
Thrust Generation ◽  
Transport Vehicle ◽  
And Control ◽  
Near Future

This article discusses the possibility of using a multicopter type aircraft as a transport vehicle in urban environments. This type of transport is the most promising in the near future, given the constantly growing number of traffic jams in large cities. The assessment of this aircraft is presented, taking into account the reliability requirements specified in the regulatory documents. The analysis of the aviation regulations requirements in terms of the aircraft systems reliability was carried out. Also the paper presents six options for the multicopter layout with a different number of propellers, taking into account the propeller control system, power supply system and control system. Other onboard systems are not considered, since their failures do not lead to an aircraft crash. An assessment of these options, taking into account the multicopter most critical onboard equipment layout according to reliability criterion by budgeting the requirements for one thrust generation channel, is given. Fault trees and failure situations that lead to a disastrous situation are also presented for each multicopter layout separately, as well as proposals for the number of independent channels for the power supply system and control system. Based on the set quantitative requirements for the occurrence of a catastrophic situation for the main on-board equipment and various layout options, taking into account the number of propellers and proposals for their architecture, power supply systems and control systems the most promising multicopter architecture options are determined. They meet the requirements for failure safety for a catastrophic situation.

The development of data acquisition and control system for extraction power supply of prototype RF ion source

2018 ◽  
Vol 20 (8) ◽  
pp. 085602 ◽  
Author(s):  
Meichu HUANG ◽  
Chundong HU ◽  
Yuanzhe ZHAO ◽  
Caichao JIANG ◽  
Yahong XIE ◽  
...  
Keyword(s):  
Control System ◽  
Data Acquisition ◽  
Power Supply ◽  
Ion Source ◽  
Rf Ion Source ◽  
And Control ◽  
Extraction Power

Digital Simulation for TRISTAN AR Magnet Power Supply and Control System

1983 ◽  
Vol 30 (4) ◽  
pp. 2929-2931 ◽  
Author(s):  
Tadashi Kubo ◽  
Hitoshi Fukuma ◽  
Atsushi Kabe ◽  
Kuninori Endo
Keyword(s):  
Control System ◽  
Power Supply ◽  
Digital Simulation ◽  
And Control

scholarly journals Five-Hundred-Meter Aperture Spherical Telescope Project

2001 ◽  
Vol 182 ◽  
pp. 219-224 ◽  
Author(s):  
B. Peng ◽  
R. Nan ◽  
Y. Su ◽  
Y. Qiu ◽  
L. Zhu ◽  
...  
Keyword(s):  
Control System ◽  
Southwest China ◽  
Karst Area ◽  
Spherical Reflector ◽  
Paraboloid Of Revolution ◽  
Square Kilometer Array ◽  
The Cost ◽  
And Control ◽  
Electronic Technologies ◽  
Feed Support System

AbstractA Five hundred meter Aperture Spherical Telescope (FAST) is proposed to be built in the unique karst area of southwest China, and will act, in a sense, as a prototype for the Square Kilometer Array (SKA). It will be over twice as large as the Arecibo telescope coupled with much wider sky coverage. Some results from site surveys for such a SKA concept are briefly reported. Technically, FAST is not simply a copy of the existing Arecibo telescope but has rather a number of innovations. Firstly, the proposed main spherical reflector, by conforming to a paraboloid of revolution in real time through actuated active control, enables the realization of both wide bandwidth and full polarization capability while using standard feed design. Secondly, a feed support system which integrates optical, mechanical and electronic technologies will effectively reduce the cost of the support structure and control system. Pre-research on FAST has become a key project in the CAS.

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