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Model and algorithm for satellite’s active temperature control loop design

Li Yunze,Yang Juan,Ning Xianwen,Wang Xiaoming,Shi Xiaobo

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 48-50

Abstract:

Electrical heater is an important type of active thermal control methodsA dynamical equation of its control object's transient temperature change is established throughThe heating power demand calculation models at different temperature control models have been developedAn active heating loop design example, which is included at the end of this paper, shows that the equationsdeveloped above can be used conveniently in satellite's active thermal control system designing

Keywords： satellite     active thermal control     active temperature control loop     model and algorithm    

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UPFC setting to avoid active power flow loop considering wind power uncertainty

Shenghu LI, Ting WANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 165-175 doi: 10.1007/s11708-020-0686-z

Abstract: The active power loop flow (APLF) may be caused by impropriate network configuration, impropriate parametercontrollers, e.g., the unified power flow controller (UPFC), may be the reason and the solution to the loopintegrated power flow, and solved with the affine Krawcyzk iteration to make sure that the range of active

Keywords： active power loop flow (APLF)     unified power flow controller (UPFC)     wind power uncertainty     interval power    

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A combined modulated feedback and temperature compensation approach to improve bias drift of a closed-loop

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 497-510 doi: 10.1631/FITEE.1400349

Abstract: In this paper, a combined approach on closed-loop architecture modification is proposed to minimize theThen a common mode signal is created and added into the closed loop on the basis of modulated feedbackarchitecture, to compensate for the temperature drift.The temperature coefficient is reduced from 4.68 to 0.1 m /°C.The combined approach could be useful for many other closed-loop accelerometers.

Keywords： Bias drift     Closed-loop MEMS accelerometer     Modulated feedback approach     Temperature compensation    

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Wide gap active brazing of ceramic-to-metal-joints for high temperature applications

K. Bobzin,L. Zhao,N. Kopp,S. Samadian Anavar

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 71-74 doi: 10.1007/s11465-014-0291-0

Abstract: Commonly used silver based active filler metals cannot fulfill these requirements, if application temperaturesAu and Pd based active fillers are too expensive for many fields of use.As one possible solution nickel based active fillers were developed.study, the microstructure of the brazed joints and the thermo-chemical reactions between filler metal, activeelements and WC particles were analyzed to understand the mechanism of the so called wide gap active

Keywords： wide gap     active brazing     nickel filler metals     high temperature application     WC     Al2O3   

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Semi-active vibration control using piezoelectric actuators in smart structures

Jinhao QIU, Hongli JI, Kongjun ZHU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 242-251 doi: 10.1007/s11465-009-0068-z

Abstract: smart structures, have many outstanding advantages for sensors and actuators, especially in vibration controlSemi-active vibration control based on state switching and pulse switching has been receiving much attentionIn this review article, the principles of the semi-active control methods based on switched shunt circuit, including state-switched method, synchronized switch damping techniques, and active control theory-basedMoreover, the future directions of research in semi-active control are also summarized.

Keywords： smart structure     semi-active method     vibration control     piezoelectric actuator    

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A Cu-modified active carbon fiber significantly promoted HS and PH simultaneous removal at a low reactiontemperature

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1425-3

Abstract:

• Cu0.15-ACF performs the best for H2S and PH3 simultaneous removal.

Keywords： ACF     H2S     PH3     Cu     Low temperature     Simultaneous removal    

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Semi-active fuzzy control of Lali Cable-Stayed Bridge using MR dampers under seismic excitation

Sajad JAVADINASAB HORMOZABAD, Amir K. GHORBANI-TANHA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 706-721 doi: 10.1007/s11709-020-0612-9

Abstract: Seismic control of cable-stayed bridges is of paramount importance due to their complex dynamic behaviorIn the present study, several semi-active Fuzzy Control Algorithms (FCAs) for vibration mitigation ofThe performance of fuzzy control systems is also compared with a sky-hook and a passive-on system.Moreover, the sensitivity of efficiency of control systems to the peak ground acceleration is evaluatedTherefore, the results can be regarded as a general guide to design semi-active fuzzy control systems

Keywords： semi-active control     Fuzzy Control Algorithm     cable-stayed bridge     MR damper     Lali Bridge    

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H∞ control in the frequency domain for a semi-active floor isolation system

Yundong SHI, Tracy C BECKER, Masahiro KURATA, Masayoshi NAKASHIMA

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 264-275 doi: 10.1007/s11709-013-0214-x

Abstract: Semi-active control with an control was adopted for the floor isolation system and a new input shapingA series of shake table tests for a semi-active floor isolation system using rolling pendulum isolatorsand a magnetic-rheological damper were performed to validate the control.Passive control using an oil damper was also tested for comparison.The control algorithm proved to be more advantageous than passive control because of its capacity to

Keywords： semi-active     floor isolation     H∞ control     MR damper     shaping filter     shaking table    

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High-bandwidth nanopositioning via active control of system resonance

Linlin LI, Sumeet S. APHALE, Limin ZHU

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 331-339 doi: 10.1007/s11465-020-0619-x

Abstract: To overcome this issue, a variety of open- and closed-loop control techniques that commonly combine dampingopen-loop resonant frequency of the respective positioning axis.The integral resonant control (IRC) has been reported earlier to demonstrate the significant performanceAnd both damping and tracking control parameters are analytically optimized to result in a ButterworthIt is shown that by employing the active resonance shifting, the closed-loop positioning bandwidth is

Keywords： nanopositioning stage     high-bandwidth     resonant mode control     tracking control     integral resonant control    

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Development of highly active coated monolith SCR catalyst with strong abrasion resistance for low-temperature

Lina GAN,Shan LEI,Jian YU,Hongtao MA,Yo YAMAMOTO,Yoshizo SUZUKI,Guangwen XU,Zhanguo ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 979-987 doi: 10.1007/s11783-015-0824-8

Abstract: Monolith SCR catalysts coated with V O -WO /TiO were prepared by varying binder and coating thickness. Comparing with a monolith extruded with 100% V O -WO /TiO powder, a coated monolith with a catalyst-coating layer of 260 μm in thickness exhibited the similar initial NO reduction activity at 250°C. After 4 h abrasion (attrition) in an air stream containing 300 g·m fine sands (50–100 μm) at a superficial gas velocity of 10 m·s , the catalyst still has the activity as a 100% molded monolith does in a 24-h activity test and it retains about 92% of its initial activity at 250°C. Estimation of the equivalent durable hours at a fly ash concentration of 1.0 g·m in flue gas and a gas velocity of 5 m·s demonstrated that this coated monolith catalyst is capable of resisting abrasion for 13 months without losing more than 8% of its initial activity. The result suggests the great potential of the coated monolith for application to de-NO of flue gases with low fly ash concentrations from, such as glass and ceramics manufacturing processes.

Keywords： coated monolith     low-temperature denitration     abrasion resistance     attrition    

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Advances in Active Suspension Systems for Road Vehicles

Min Yu,Simos Evangelou,Daniele Dini,

Engineering doi: 10.1016/j.eng.2023.06.014

Abstract: Existing review papers on ASSs mainly cover dynamics modeling and robust control; however, the gap betweencomprehensively reviews advances in ASSs for road vehicles, with a focus on hardware structures and controlbody control (ABC) and Audi predictive active suspension; novel concepts that could become alternativecandidates are also introduced, including series active variable geometry suspension, and the activeIn terms of control strategies, the development of future ASSs aims not only to stabilize the chassis

Keywords： Active suspension     Vehicle dynamics     Robust control     Ride comfort     Chassis attitude    

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Performance of PI controller for control of active and reactive power in DFIG operating in a grid-connected

Azzouz TAMAARAT,Abdelhamid BENAKCHA

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 371-378 doi: 10.1007/s11708-014-0318-6

Abstract: The objective of this work is to present the modeling and control strategy of a grid connected wind powerand simulation of a wind turbine driven DFIG in the second mode of operating (the wind turbine pitch controlIt will introduce the vector control, which makes it possible to control independently the active andreactive power exchanged between the stator of the generator and the grid, based on vector control conceptfor some optimization criteria (energy efficiency and the robustness of the control).

Keywords： wind power     doubly fed induction generator (DFIG)     vector control     active power     reactive power     maximum power    

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Development of a dual temperature control system for isoprene biosynthesis in

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1079-1089 doi: 10.1007/s11705-021-2088-0

Abstract: conflict in yeast strains harboring the isoprene synthetic pathway in the mitochondria, the dynamic controlA dual temperature regulation system was developed through engineering and expression regulation of theCompared to the control strain with constitutively expressed wild-type Gal4p, the dual temperature regulationthe creation of the first cold-sensitive variants of Gal4p by directed evolution and provides a dual temperaturecontrol system for yeast engineering that may also be conducive to the biosynthesis of other high-value

Keywords： transcriptional activator     directed evolution     dynamic control     heat-shock     isoprene    

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A simple digital control algorithm for three phase shunt active filter: simulation and experimentation

Subbaraman SRINATH, Chandan KUMAR, M. P. SELVAN

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 119-128 doi: 10.1007/s11708-013-0288-0

Abstract: A novel and simple control algorithm using digital signal processor (DSP) has been proposed and realizedfor a three phase shunt active filter (SAF).This reduces the computational complexity and makes the control flexible and faster.MATLAB/SIMULINK while DSP TMS320LF2407 is employed in the digital implementation of hysteresis current control

Keywords： shunt active filter (SAF)     power quality     voltage source inverter (VSI)     digital signal processor (DSP)    

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A low power consumption control scheme: application to a piezostack-based active mount

T. LOUKIL, O. BAREILLE, M. N. ICHCHOU, M. HADDAR

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 383-389 doi: 10.1007/s11465-013-0274-6

Abstract:

Piezostack-based active mounts have shown great efficiency for vibration control in a wide frequencyIn this paper, we investigate the performances of the global semi-active control strategy presented byIchchou et al. [ ] for a control system consisting of an active mount and a supported mass.Consequently, energy needs are reduced versus good control performances comparable to those of the activecontrol based on the negative velocity feedback.

Keywords： hybrid mount     energy     control     piezoelectric     harvesting    

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Title Author Date Type Operation

Model and algorithm for satellite’s active temperature control loop design

Li Yunze,Yang Juan,Ning Xianwen,Wang Xiaoming,Shi Xiaobo

Journal Article

UPFC setting to avoid active power flow loop considering wind power uncertainty

Shenghu LI, Ting WANG

Journal Article

A combined modulated feedback and temperature compensation approach to improve bias drift of a closed-loop

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Journal Article

Wide gap active brazing of ceramic-to-metal-joints for high temperature applications

K. Bobzin,L. Zhao,N. Kopp,S. Samadian Anavar

Journal Article

Semi-active vibration control using piezoelectric actuators in smart structures

Jinhao QIU, Hongli JI, Kongjun ZHU

Journal Article

A Cu-modified active carbon fiber significantly promoted HS and PH simultaneous removal at a low reactiontemperature

Journal Article

Semi-active fuzzy control of Lali Cable-Stayed Bridge using MR dampers under seismic excitation

Sajad JAVADINASAB HORMOZABAD, Amir K. GHORBANI-TANHA

Journal Article

H∞ control in the frequency domain for a semi-active floor isolation system

Yundong SHI, Tracy C BECKER, Masahiro KURATA, Masayoshi NAKASHIMA

Journal Article

High-bandwidth nanopositioning via active control of system resonance

Linlin LI, Sumeet S. APHALE, Limin ZHU

Journal Article

Development of highly active coated monolith SCR catalyst with strong abrasion resistance for low-temperature

Lina GAN,Shan LEI,Jian YU,Hongtao MA,Yo YAMAMOTO,Yoshizo SUZUKI,Guangwen XU,Zhanguo ZHANG

Journal Article

Advances in Active Suspension Systems for Road Vehicles

Min Yu,Simos Evangelou,Daniele Dini,

Journal Article

Performance of PI controller for control of active and reactive power in DFIG operating in a grid-connected

Azzouz TAMAARAT,Abdelhamid BENAKCHA

Journal Article

Development of a dual temperature control system for isoprene biosynthesis in

Journal Article

A simple digital control algorithm for three phase shunt active filter: simulation and experimentation

Subbaraman SRINATH, Chandan KUMAR, M. P. SELVAN

Journal Article

A low power consumption control scheme: application to a piezostack-based active mount

T. LOUKIL, O. BAREILLE, M. N. ICHCHOU, M. HADDAR

Journal Article