scholarly journals Simulation of Pneumatic Systems Using Automation StudioTM Software Platform

2020 ◽  
Vol 19 (4) ◽  
pp. 655-666
Author(s):  
M. Ghinea ◽  
M. Agud ◽  
M. Bodog
Keyword(s):  
Mechanical System ◽  
Industrial Applications ◽  
Mechanical Work ◽  
Compressed Air ◽  
Linear Motion ◽  
Software Platform ◽  
Efficient Operation ◽  
And Control ◽  
Mixed Systems ◽  
Pneumatic Cylinders

Nowadays, more and more industrial applications use pneumatic systems instead of hydraulic, electrical or mixed systems. This article presents the applicability of pneumatic engines for compressed air vehicles (CAV) from the perspective of their simulation on the Automation Studio software platform. It is desired to use the mechanical work produced by only pneumatic cylinders taken over by a mechanical system that transforms the linear motion into a rotational one, this helping to propel the CAV. A feature of this engine is the limited quantity of compressed air at disposal (a reservoir). Also, the most efficient operation of the pneumatic cylinders is studied to achieve the operation with low consumption of compressed air, thus leading to increased performances. The current simulation was run without the use of specific electric/electronic equipment (PLC /PACs). Therefore, the pneumatic devices had assured the command and control of the system.

Application of LabVIEW in Flame Cutter NC System

2008 ◽  
Vol 392-394 ◽  
pp. 121-124 ◽  
Author(s):  
Hong Yun Wang ◽  
G.F. Guo ◽  
Y.X. Li ◽  
Xi Lin Zhu
Keyword(s):  
Data Processing ◽  
Control Structure ◽  
Software Platform ◽  
Nc System ◽  
The Usa ◽  
Nc Machine ◽  
And Control

In this paper, a system was introduced, which bases on Flame Cutter NC System and software platform of LabVIEW which the USA NI company developed. Composing of NC machine, partition of modules and assignments, functions confirming, data processing of machining and control, structure of software by the numbers and realization method of two CPUs. The system makes use of multitasking of LabVIEW to make the programmer realize easily the task, which is difficulty to acquire in in tradition programme. It is a kind of comparatively convenient and swift thinking to realize system interface and multitasking by the platform of LabVIEW.

Commissioning and Control of the AMB Supported 3.5 kW Laboratory Gas Blower Prototype

2013 ◽  
Vol 198 ◽  
pp. 451-456 ◽  
Author(s):  
Rafał P. Jastrzębski ◽  
Alexander Smirnov ◽  
Katja Hynynen ◽  
Janne Nerg ◽  
Jussi Sopanen ◽  
...  
Keyword(s):  
Control System ◽  
Permanent Magnet ◽  
Induction Motor ◽  
Industrial Applications ◽  
Magnetic Bearing ◽  
Active Magnetic Bearing ◽  
Sensor Calibration ◽  
Full Potential ◽  
Disturbance Analysis ◽  
And Control

This paper presents the practical results of the design analysis, commissioning, identification, sensor calibration, and tuning of an active magnetic bearing (AMB) control system for a laboratory gas blower. The presented step-by-step procedures, including modeling and disturbance analysis for different design choices, are necessary to reach the full potential of the prototype in research and industrial applications. The key results include estimation of radial and axial disturbance forces caused by the permanent magnet (PM) rotor and a discussion on differences between the unbalance forces resulting from the PM motor and the induction motor in the AMB rotor system.

Optimisation of a Pump-Controlled Hydraulic System using Digital Displacement Pumps

2021 ◽  
Author(s):  
L. Viktor Larsson ◽  
Robert Lejonberg ◽  
Liselott Ericson
Keyword(s):  
Electric Motor ◽  
Energy Savings ◽  
High Energy ◽  
Motor Speed ◽  
Efficient Operation ◽  
Pump Speed ◽  
Hardware Configuration ◽  
Control Optimisation ◽  
And Control ◽  
Parasitic Components

When electrifying working machines, energy-efficient operation is key to maximise the use of the limited capacity of on-board batteries. Previous research indicate high energy savings by means of component and system design. In contrast, this paper focuses on how to maximise energy efficiency by means of both design and control optimisation. Simulation-based optimisation and dynamic programming are used to find the optimal electric motor speed trajectory and component sizes for a scooptram machine equipped with pump control, enabled by digital displacement pumps with dynamic flow sharing. The results show that a hardware configuration and control strategy that enable low pump speed minimise drag losses from parasitic components, partly facilitated by the relatively high and operation point-independent efficiencies of the pumps and electric motor. 5–10% cycle energy reductions are indicated, where the higher figure was obtained for simultaneous design and control optimisation. For other, more hydraulic-intense applications, such as excavators, greater reductions could be expected.

scholarly journals Nanotechnology: A Journey towards Finding Solutions

2015 ◽  
Vol 5 (1) ◽  
pp. 61
Author(s):  
Satya Pal Singh
Keyword(s):  
Health And Safety ◽  
Functional Materials ◽  
Simulation Method ◽  
Industrial Applications ◽  
Policy Makers ◽  
Advance Research ◽  
American Physical ◽  
Richard Feynman ◽  
And Control ◽  
Thin Film Magnetism

<p class="1Body">Nanotechnology is the understanding and control of matter at the diemnsions ranging between 1-100 nm. One nanometer is one billionth of a meter. Nanotechnology involves manipulation of atoms, imaging, measuring and modelling at nano scale. Its potentials were first highlighted by Richard Feynman in the American Physical Scociety meeting in 1959. Though, he did not coin the world nanotechnology himself but he explored the possiblities of functional materials at the bottom of the scale. In last two decades this technology has been commercialized to great extent and gaining importance day by day influencing the economies of different countries and henceforth enforcing the policy makers to address the issues like environment, health and safety. Governments are regularisaing and monitoring its research, uses, applications and technology transfer which includes intelluctaul property rights. This paper addresses the dimensions and trends of nanotechnology covering economic aspects. The paper is focussed on the changes in the functional properties of nanomaterials as physical, chemical, optical, electronic, electrical, magnetic etc. in comparision to those of the bulk of material. It has been discussed how the basic and advance research in nanoscience could be explotiedfor making technologies for its commercial and industrial applications for the benefit and safety of the soceity. Thin film magnetism is demonstrated using Monte Carlo simulation method. Experimental synthesisof some of thenanorods and qunatum dots are also discussed.</p>

scholarly journals Assessment of Building Automation and Control Systems in Danish Healthcare Facilities in the COVID-19 Era

2022 ◽  
Vol 12 (1) ◽  
pp. 427
Author(s):  
Jeanette Maria Pedersen ◽  
Farah Jebaei ◽  
Muhyiddine Jradi
Keyword(s):  
Air Quality ◽  
Ventilation System ◽  
Hot Water ◽  
Building Automation ◽  
Efficient Operation ◽  
Healthcare Facilities ◽  
Automation And Control ◽  
And Control ◽  
Indoor Conditions ◽  
The Impact

A well-designed and properly operated building automation and control system (BACS) is key to attaining energy-efficient operation and optimal indoor conditions. In this study, three healthcare facilities of a different type, age, and use are considered as case studies to investigate the functionalities of BACS in providing optimal air quality and thermal comfort. IBACSA, the first-of-its-kind instrument for BACS assessment and smartness evaluation, is used to evaluate the current systems and their control functionalities. The BACS assessment is reported and analyzed. Then, three packages of improvements were implemented in the three cases, focusing on (1) technical systems enhancement, (2) indoor air quality and comfort, and (3) energy efficiency. It was found that the ventilation system domain is the best performer in the three considered cases with an overall score of 52%, 89% and 91% in Case A, B, and C,, respectively. On the other hand, domestic hot water domain scores are relatively low, indicating that this is an area where Danish healthcare facilities need to provide more concentration on. A key finding indicated by the assessment performed is that the three buildings score relatively very low when it comes to the impact criteria of energy flexibility and storage.

scholarly journals The Development of Radio and 3G Based Telemetry System for the Remote Gas Accounting and Control Nodes

2019 ◽  
Vol 8 (9S3) ◽  
pp. 1417-1421
Keyword(s):  
Dynamic Range ◽  
High Dynamic Range ◽  
Industrial Applications ◽  
Telemetry System ◽  
Computing Device ◽  
Gas Leakage ◽  
Remote Environment ◽  
High Dynamic ◽  
And Control ◽  
Direct Management

In this article we have described the use of vortex and recently developed ultrasonic flowmeters with high dynamic range of 1 to 1500 for industrial applications. Its software and the software of corresponding computing device is able to avoid gas leakage, to minimize energy consumption and to save human resources while maintaining metrological data. Described is the low power consumption that makes it possible to use this ultrasonic flowmeter in hard remote environment without direct management for a period of several months. Shown is the new telemetry system that was developed to unite flowmeters in the severe conditions of the desert with power supply problems and low GPRS signal quality. Experiments held in Turkmenistan have shown that device indications didn’t drift and remained stable during the year, that is a great advantage in comparison to rotary and turbine flowmeters. Also described is the mobile ultrasonic calibration stand that uses the same physical principles and similar software. Outlined is the usage of modern wireless technologies to collect and transmit metrological data.

scholarly journals Grid-connected inverters per-unit Dynamic Phasor modelling, simulation and control

2020 ◽  
Author(s):  
Álvaro A. Volpato ◽  
Luís F. C. Alberto
Keyword(s):  
Synchronous Machines ◽  
Mathematical Foundation ◽  
Simulation And Control ◽  
The Stability ◽  
Dynamic Phasor ◽  
And Control ◽  
Inverter Topology ◽  
Mixed Systems ◽  
Modelling Simulation

Given the increasing penetration of photovoltaic and battery-powered systems in macro and microgrids, efficient and reliable modelling of the inverters for studying the stability of such systems is paramount. In the current academia standard, generic inverter models, which do not coherently represent inverter behavior nor consider inverter topology and filter, are used - undermining the presented results. This paper presents a thorough and comprehensive per-unit modelling of inverter systems based on a strong mathematical foundation. This modelling is compatible with Equivalent Phasor techniques, generally used for synchronous machines, which allow simulation and study of stability of mixed systems where both technologies are present.

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