Energy-Saving Control System for AC Motors

2013 ◽  
Vol 765-767 ◽  
pp. 1988-1991
Author(s):  
Guo Zhuang Liang ◽  
Meng Zhang ◽  
Shan Shan Jiang
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Energy Saving ◽  
Frequency Converter ◽  
Input Power ◽  
Load Range ◽  
Light Load ◽  
Ac Motors ◽  
Ac Motor ◽  
Energy Saving Control

When AC motor is operated in the light load or no-load, the power factor of AC motor is relatively low, so frequency converter is adapted to motor for energy-saving control, and the system increase the tracking function of the load on the basis of all the features of the conventional inverter. And it is able to real-time monitor to load changes of the motor through the microcontroller, online adjust the input power of the motor, so that the motor output power to match load, ensure that the energy consumption of the motor is reduced to a minimum extent in the entire load range.

Simulation on the Energy Saving Control Model of Large-Scale Power Control

2014 ◽  
Vol 602-605 ◽  
pp. 1190-1193
Author(s):  
Rui Xiang Fan ◽  
Wei Xia ◽  
Bin Liu
Keyword(s):  
Genetic Algorithms ◽  
Control System ◽  
Energy Consumption ◽  
Power Control ◽  
Energy Saving ◽  
Large Scale ◽  
Design Method ◽  
Control Process ◽  
Control Model ◽  
Energy Saving Control

During the large transformers operation, the proportion of the non-essential energy consumption is higher. In order to reduce the energy consumption in power control process, a new design method of energy-saving control in large-scale power control process based on adaptive linear genetic algorithms. Loss model of power control is established firstly. Based on the relevant data of the model, energy-saving control in large-scale power control process can be achieved. Experimental results show that the improved algorithm can effectively reduce the energy consumption in large-scale power control system, and meet the actual demand of power control.

scholarly journals Algorithm of Energy-Saving Control Over Hammers of Active Excavator Buckets

2021 ◽  
Vol 346 ◽  
pp. 03033
Author(s):  
Yako Liberman ◽  
Konstantin Letnev ◽  
Lyubov Gorbunova
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Energy Saving ◽  
Frozen Soils ◽  
Operating Modes ◽  
Hammer Head ◽  
All Speeds ◽  
Energy Saving Control ◽  
Command Signal

The article considers the operation of excavators designed to mine hard or frozen soils. To reduce significant energy consumption, which characterizes the process, active buckets equipped with special hammers are used. Minimizing the energy consumption of such buckets can be achieved by optimally controlling their operating modes. Expressions for the energy consumed by a hammer, characteristics of its head, operating modes, soil are derived, with the minimum of the energy estimated. On the basis of those expressions, an algorithm of energy-saving control over hammers of active excavator buckets is formed and described. It determines the corresponding speed of impact of the hammer head on the soil which can be supplied to the hammer control system in the form of a command signal. The combination of all speeds when digging a track will provide the required performance of the excavator, with each speed set to the minimum, from the viewpoint of optimizing the energy consumption, necessary for the work of the hammer.

Development on Inverter Control System of Smart Pumping Unit Based on Self-Learning Feature

2012 ◽  
Vol 524-527 ◽  
pp. 1161-1165
Author(s):  
Ju Lian Ma ◽  
Hao Bin Zhou ◽  
Xiang Qian Xu
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Frequency Converter ◽  
Advanced Technology ◽  
Practical Operation ◽  
Pumping Unit ◽  
Saving Effect ◽  
Energy Saving Control ◽  
The Impact ◽  
Self Learning

For the enormous potential of beam pumping unit’s energy saving, the frequency energy-saving control system of smart pumping unit with the function of self-learning has been developed on the basis of advanced technology and methods both in the domestic and abroad. The application of frequency converter not only has solved the impact problem at startup, but also improved the power factor significantly. For the solution to the shortage of oil wells, the system is to sample the parameters of Motor unit continuously under the conditions of relatively original and the conditions of normal working. The working liquid level as object to be controlled, the system is to adjust the liquid withdrawal rate to be sure the ability to match with the fluid through VVVF, and then a better energy-saving effect be obtained. The application of practical operation shows that the system can run efficiently and realize energy saving of the pumping.

Classroom Lighting Energy-Saving Control System Based on Machine Vision Technology

2018 ◽  
pp. 143-149 ◽  
Author(s):  
Ruijie CHENG
Keyword(s):  
Control System ◽  
Machine Vision ◽  
Energy Saving ◽  
Back Propagation ◽  
Back Propagation Neural Network ◽  
Lighting Control ◽  
Lighting Energy ◽  
Neural Network Algorithm ◽  
Energy Saving Control ◽  
Model Algorithm

In order to further improve the energy efficiency of classroom lighting, a classroom lighting energy saving control system based on machine vision technology is proposed. Firstly, according to the characteristics of machine vision design technology, a quantum image storage model algorithm is proposed, and the Back Propagation neural network algorithm is used to analyze the technology, and a multi­feedback model for energy­saving control of classroom lighting is constructed. Finally, the algorithm and lighting model are simulated. The test results show that the design of this paper can achieve the optimization of the classroom lighting control system, different number of signals can comprehensively control the light and dark degree of the classroom lights, reduce the waste of resources of classroom lighting, and achieve the purpose of energy saving and emission reduction. Technology is worth further popularizing in practice.

scholarly journals Energy saving control system development for external lighting

2020 ◽  
Vol 17 (3) ◽  
pp. 1601
Author(s):  
A.A. Ashryatov ◽  
V.G. Kulikov ◽  
A.V. Panteleyev
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Control Systems ◽  
Reactive Power ◽  
System Development ◽  
Economic Effect ◽  
Power Reduction ◽  
Street Lighting ◽  
Lighting Control ◽  
Energy Saving Control

<p>Currently, energy saving requires the development of simple and efficient street lighting control systems. In order to create such a control system, it is necessary to develop an original principle of its operation. They considered the advantages of electronic starting devices in street lighting control systems. They performed the analysis of the existing state of street lighting means, their shortcomings and solutions have been determined, and they developed the method of lighting device automatic control. They performed the assessment of the economic effect from loss reduction associated with reactive power and due to power reduction during deep night. They presented the example of economic effect achievement from the use of an electronic starting device with automatic power reduction.</p>

scholarly journals Investigation of the possibility of regulation and automatic optimization of the control system of a chamber grain dryer

2021 ◽  
Vol 4 (46) ◽  
pp. 6-6
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Energy Saving ◽  
Automatic Control System ◽  
Frequency Converter ◽  
Heat Energy ◽  
Convective Drying ◽  
Control Temperature ◽  
Temperature Controller ◽  
Automatic Optimization

The regulation of the coolant speed during convective drying in a stationary grain layer allows the maximum use of the amount of heat energy for drying the material. The paper presents the results of a study of the regulation of the coolant speed on an experimental drying plant for use in the automatic control system of a chamber grain dryer. The article also discusses the issues of energy saving efficiency in drying chambers. The possibility of automatic control of the main parameters control system using a microcontroller is analyzed. Keywords: DRYING MODES, DRYING ZONE, AUTOMATIC CONTROL, TEMPERATURE CONTROLLER, FAN, OPTIMIZATION, MICROCONTROLLER, FREQUENCY CONVERTER

A “vehicle in, light brightens; vehicle out, light darkens” energy-saving control system of highway tunnel lighting

2017 ◽  
Vol 66 ◽  
pp. 147-156 ◽  
Author(s):  
Li Qin ◽  
Lili Dong ◽  
Wenhai Xu ◽  
Lidong Zhang ◽  
Qiubo Yan ◽  
...  
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Highway Tunnel ◽  
Energy Saving Control
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