Discussion on the Economic Benefits Brought by Energy Saving Optimization of Control System of Large Compressor Unit in Petrochemical Plant

2021 ◽  
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Economic Benefits ◽  
Petrochemical Plant ◽  
Compressor Unit

High-Voltage Converter Technology Applied in Coal Mining Ventilator

2013 ◽  
Vol 380-384 ◽  
pp. 144-147
Author(s):  
Huai Qun Wang ◽  
Ming Zhu Zhang
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Coal Mining ◽  
High Voltage ◽  
Ventilation System ◽  
Economic Benefits ◽  
Torque Control ◽  
Shanxi Province ◽  
Voltage Converter ◽  
Operation Conditions

High-voltage converter technology applied in coal mining ventilator could gain a great deal of operating effectiveness and economic benefits. This paper illustrates the reformation of main ventilation system in some coal mine of Shanxi province. The defective operation conditions of previous mining ventilator and the advantage of converter control system applied in the mining ventilator are also proposed by this paper. The mathematical model of direct torque control (DTC) method used in the system is analyzed by giving dynamic model of stator flux oriented. The transformed design of converter control system with the benefits of highly enhanced energy-saving and environmental protections is involved as well as its operating statistics on energy-saving effect.

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.

Economic Appraisal of Energy-Conservation Construction during the Build-and-Run Cycle

2011 ◽  
Vol 71-78 ◽  
pp. 451-455
Author(s):  
Yi Fang Zhao
Keyword(s):  
Economic Evaluation ◽  
Energy Conservation ◽  
Energy Saving ◽  
Evaluation Model ◽  
Building Energy ◽  
Economic Benefits ◽  
Economic Appraisal ◽  
Economic Evaluation Model ◽  
Building Energy Saving

Based on the build-and-run cycle of the energy-conservation building, this paper studied from the perspective of building energy-saving. It analyzed the amount of increased investment through the analysis of build-and-run cycle cost and economic benefits of the energy-conservation building throughout the life cycle.Finally it establishes an economic evaluation model for the energy-saving building.

Energy consumption optimization for AC drives position control

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Branislav Ftorek ◽  
Milan Saga ◽  
Pavol Orsansky ◽  
Jan Vittek ◽  
Peter Butko
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Energy Savings ◽  
Position Control ◽  
Control Strategies ◽  
Content Type ◽  
Ac Drives ◽  
Energy Demands ◽  
Wide Range ◽  
Energy Consumption Optimization

Purpose The main purpose of this paper is to evaluate the two energy saving position control strategies for AC drives valid for a wide range of boundary conditions including an analysis of their energy expenses. Design/methodology/approach For energy demands analysis, the optimal energy control based on mechanical and electrical losses minimization is compared with the near-optimal one based on symmetrical trapezoidal speed profile. Both control strategies respect prescribed maneuver time and define acceleration profile for preplanned rest-to-rest maneuver. Findings Presented simulations confirm lower total energy expenditures of energy optimal control if compared with near-optimal one, but the differences are only small due to the fact that two energy saving strategies are compared. Research limitations/implications Developed overall control system consisting of energy saving profile generator, pre-compensator and position control system respecting principles of field-oriented control is capable to track precomputed state variables precisely. Practical implications Energy demands of both control strategies are verified and compared to simulations and preliminary experiments. The possibilities of energy savings were confirmed for both control strategies. Originality/value Experimental verification of designed control structure is sufficiently promising and confirmed assumed energy savings.

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