660MW Single Auxiliary Ultra-Supercritical Unit Main Stream’s Temperature Control Strategy Optimization Studies

2014 ◽  
Vol 909 ◽  
pp. 317-322
Author(s):  
Huan Pao Huang ◽  
Ji An Yu ◽  
Qian Su ◽  
Lei Wang
Keyword(s):  
Temperature Control ◽  
Control Strategy ◽  
Control Strategies ◽  
Dynamic Parameter ◽  
Pilot Project ◽  
Smith Predictor ◽  
Temperature Control System ◽  
Performance Requirements ◽  
And Performance ◽  
Adjustable Range

2 × 660MW ultra-supercritical units of O'Brien Power Plant are single configuration of auxiliary pilot project, due to the higher its parameters and performance requirements, it need better control strategies to ensure safe and economical operation. Against traditional cascade PID main steam’s temperature control system delaying large, this article proposed control strategy based on Smith estimated. Main steam’s temperature controlled object inert zone mathematical model can be showed by multi-volume model, and use the improved system for large inertia Smith Predictor to make dynamic parameter control systems improvements. Simulation results of the simulation machine show that: Optimization emperor steam temperature control is in an adjustable range and the policy in separate auxiliary units is feasible.

scholarly journals Smith predictor design by CDM for temperature control system

ICCAS 2010 ◽  
2010 ◽  
Author(s):  
Pruetti Puawade ◽  
Vichitpon Boonpranchoo ◽  
Vittaya Tipsuwannaporn ◽  
Arjin Numsomran
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Smith Predictor ◽  
Temperature Control System

scholarly journals Model-Based Control Strategy for Autonomous Vehicle Path Tracking Task

2020 ◽  
Vol 12 (1) ◽  
pp. 35-45
Author(s):  
Ahmad Reda ◽  
József Vásárhelyi
Keyword(s):  
Control Strategy ◽  
Control Strategies ◽  
Autonomous Vehicle ◽  
Steering System ◽  
Model Based Control ◽  
Model Based ◽  
Common Control ◽  
Vehicle Path ◽  
And Performance ◽  
Robust Systems

AbstractDespite the advanced technologies used in recent years, the lack of robust systems still exists. The automated steering system is a critical and complex task in the domain of the autonomous vehicle’s applications. This paper is a part of project that deals with model-based control strategy as one of the most common control strategies. The main objective is to present the implementations of Model Predictive Control (MPC) for an autonomous vehicle steering system in regards to trajectory tracking application. The obtained results are analysed and the efficiency of the use of MPC controller were discussed based on its behaviour and performance.

scholarly journals Analysis on Semiconductor Thermoelectric Cooler Temperature Control System Based on MCU

2015 ◽  
Vol 2 ◽  
pp. 1
Author(s):  
Juan Zhua ◽  
Jianping Huang
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Power Dissipation ◽  
Working Condition ◽  
Science And Technology ◽  
Temperature Control System ◽  
Thermoelectric Cooler ◽  
Performance Requirements ◽  
New Material ◽  
Overall Performance

<p>With the progress of science and technology, material application science has developed rapidly. As a kind of new material, the semiconductor refrigeration material has been well applied. Based on that, this essay studies semiconductor thermoelectric cooler temperature control system based on MCU and its application. The research indicates that by controlling power supply’s unit circuit with power dissipation, the system controls the working condition (refrigeration / heating switch, adjustable power) of semiconductor thermoelectric cooler to achieve the goal of measuring and controlling the temperature of some equipment, guaranteeing their proper functioning. The system is easy to operate, and it works safely and reliably, which could meet the overall performance requirements, and is of great application prospect and promotion value.</p>

Design and Application of Car Type Annealing Furnace Temperature Control System

2013 ◽  
Vol 391 ◽  
pp. 437-440
Author(s):  
Yan Wang ◽  
Wen Hai Lin
Keyword(s):  
Control System ◽  
System Design ◽  
Temperature Control ◽  
Temperature Control System ◽  
Control System Design ◽  
Annealing Furnace ◽  
Furnace Temperature ◽  
Pid Algorithm ◽  
And Performance ◽  
Design And Application

This paper introduces the often used machinery industry car type annealing furnace temperature control system design and application. Analyzes the composition of gas car type annealing furnace temperature control system, working principle and performance, puts forward the solutions to improve safety of the combustion system. Using PID algorithm module of Siemens STEP7 environment optimize the temperature control system design. Actual operation results show that the system has stable performance and high precision of temperature control, low hardware cost, meet the technological requirements.

scholarly journals Evaporative snout cooling system on the performance of lactating sows and their litters in a subtropical region

2015 ◽  
Vol 46 (2) ◽  
pp. 342-347 ◽  
Author(s):  
Jonas Perin ◽  
Thais Schwarz Gaggini ◽  
Samuel Manica ◽  
Diogo Magnabosco ◽  
Mari Lourdes Bernardi ◽  
...  
Keyword(s):  
Weight Loss ◽  
Control System ◽  
Control Systems ◽  
Temperature Control ◽  
Cooling System ◽  
Temperature Control System ◽  
Subtropical Region ◽  
Voluntary Feed Intake ◽  
Lactating Sows ◽  
And Performance

The aim of the study was to evaluate the influence of different temperature control systems on the voluntary feed intake (VFI), percentage of weight loss (PWL) and performance of lactating sows as well as on the weight of their piglets. Two systems were used: traditional temperature control system (TTCS) with curtain management and an evaporative snout cooling system (ESCS). The study was performed during the summer of 2011. After farrowing and at the weaning, 241 sows were weighed to evaluate the PWL during lactation. TTCS sows lost more weight (5.3±0.9%; P<0.05) than ESCS sows (2.2±0.9%). VFI was measured at intervals of four days in 32 primiparous and 39 multiparous sows. ESCS sows had higher VFI (5.8±0.2kg day-1; P<0.05) than TTCS sows (4.8±0.2kg day-1). Primiparous sows (4.4±0.2kg day-1) had a lower VFI than multiparous sows (6.3±0.2kg day-1, P<0.05) regardless of the temperature control system. Primiparous sows in the TTCS (10.9±1.3 days) had a longer weaning-to-oestrus interval than primiparous sows in the ESCS (7.0±1.2 days, P<0.05). Subsequent litter size tended to be higher (P=0.095) in ESCS than in TTCS (12.0±0.5 and 10.9±0.6 piglets born, respectively). Litters housed in ESCS were heavier (65.3±1.4kg; P<0.05) at weaning than litters in TTCS (60.7±1.4kg). The results suggest that in general sows and piglets housed in the ESCS have better performance than sows and piglets housed in TTCS.

The Temperature Control System for the Fermentation Tank Based on Smith Predictor

2011 ◽  
Vol 411 ◽  
pp. 236-240 ◽  
Author(s):  
Ya Xiao Wang ◽  
E Zhao ◽  
Xiao Li Wang
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Software Design ◽  
Pid Control ◽  
Fermentation Process ◽  
Smith Predictor ◽  
Temperature Control System ◽  
Fermentation Tank ◽  
The Stability

Abstract. For the complexity of the fermentation process, the paper adopts SPCE061A MCU to control the temperature of fermentation tank, and gives the hardware and software design methods for the system. Smith predictor is used in the design as compensation to the traditional PID control, which can overcome the effect of large lag and inertia on the stability of temperature control system and offer better robustness. So the quality of the system is greatly improved.

Software Design and Control Strategy for Polymerase Chain Reaction System

2011 ◽  
Vol 204-210 ◽  
pp. 1463-1466
Author(s):  
Jin He Wang ◽  
Hong Zhang ◽  
Nan Zhang
Keyword(s):  
Temperature Control ◽  
Software Design ◽  
Control Strategy ◽  
Dynamic Performance ◽  
Control Process ◽  
Reaction System ◽  
Temperature Control System ◽  
Polymerase Chain ◽  
Combined Feed ◽  
And Control

This paper describes a method for software design and proposes a control strategy for data processing in temperature control system. According to the proposed method, a combined feed-forward plus PID control is proposed, with additional temperature sensors, the major load disturbance attached to the system is measured. The experimental results demonstrate that the temperature control strategy significantly improves the dynamic performance on the control process.

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