Energy Regulation Based Close-Loop Variable-Speed Valve-Controlled-Motor System

2011 ◽  
Vol 328-330 ◽  
pp. 1904-1907
Author(s):  
Ming Xu ◽  
Bo Jin
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Motor System ◽  
Safety Valve ◽  
Energy Regulation ◽  
Variable Speed ◽  
Throttle Valve ◽  
New Energy ◽  
Valve Control ◽  
Loop Scheme

A new energy-saving method with an energy regulation device (ERD) is presented. The ERD is composed of an accumulator, a proportional throttle valve and a safety valve. Due to the addition of the proportional throttle valve, the ERD becomes a flow-controllable element. It can adjust energy according to the system demand. The principle of energy regulation based close-loop variable-speed valve-controlled-motor is discussed in detail. And it can be conclude that the proposed close-loop scheme can gain a good response as the valve control system while the power is less obviously.

Study on Key Techniques of Control System for Dry-Mixed Mortar Production Line

2011 ◽  
Vol 71-78 ◽  
pp. 4184-4187
Author(s):  
Huan Zhang
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Production Line ◽  
Raw Material ◽  
Level Of Automation ◽  
Technology Process ◽  
New Energy ◽  
Mixed Mortar ◽  
Key Techniques ◽  
And Control

As a new energy-saving and environmental protection building material, dry-mixed mortar has been promoting actively in China. The key techniques of control system for dry-mixed mortar production line were introduced in this paper, which was mainly based on PLC and smart weighing instrumentation. Firstly, the technology process and control demands were presented. Secondly, control system configuration, control strategy were proposed in detail. Finally, the key intelligent adjust algorithms were described as well. The practical operation verifies that the control system is highly reliable and stable, and it greatly enhances the level of automation and weighing accuracy of the raw material and meets the equipments requirements of energy-saving and green running.

Speed-Control Strategy of Energy Regulation Based Variable-Speed Electrohydraulic Drive

2013 ◽  
Vol 336-338 ◽  
pp. 912-915
Author(s):  
Ming Xu ◽  
Bo Jin
Keyword(s):  
Control Strategy ◽  
Multiple Input Multiple Output ◽  
Parameter Tuning ◽  
Energy Regulation ◽  
Variable Speed ◽  
Variable Speed Drive ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Electrohydraulic Drive ◽  
Valve Control

Dedicated to the disadvantage of variable-speed drive, the energy regulation based variable-speed electrohydraulic drive is proposed. It is a novel solution by adding an energy regulation device and a flow valve into the system. It combines the advantages of variable-speed drive, valve control and energy regulation. But it is a multiple-input multiple-output control system, coupled with strong nonlinear, volatility and uncertainty of some parameters, which make the control strategy complicated. The multiple-compound PID control strategy, as well as the parameter tuning rule, is proposed.

Design and Analysis of Office Air Conditioning System of Distributed Independent Air Supplying

2010 ◽  
Vol 42 ◽  
pp. 461-465
Author(s):  
Xu Yu ◽  
Biao Yuan
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Intelligent Control ◽  
Air Conditioning ◽  
Work Place ◽  
Air Conditioning System ◽  
Intelligent Control System ◽  
On Demand ◽  
High Efficient ◽  
New Energy

Aimed at the problem of huge energy consumption of traditional office air conditioning units, this paper has put forward a new energy-saving and high-efficient office air-conditioning system for centralized work place which is independent in air supplying and can supply cooling or heat on demand and has adopted intelligent control. The paper introduced the structure and working principles of the new air conditioning system, for example, the innovative distributed air supplying system, the frequency-converting air conditioning technology and intelligent control system. The paper also analyzed the advantages of performance, and the new air conditioning system is more energy-saving and comfortable compared with the traditional air conditioning system.

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