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Capacity limitation of nuclear units in grid based on analysis of frequency regulation

Yiping DAI, Pan JIANG, Lin GAO, Weimin KAN, Xiaoqing XIAO, Ge JIN

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 148-154 doi: 10.1007/s11708-012-0174-1

Abstract: Based on the analysis of frequency regulation, mathematic models for nuclear units in the grid are establishedThe relationship between different styles of frequency regulation and the allowable capacity of the nuclear

Keywords： nuclear units capacity     overspeed     primary frequency control (PFC)     second frequency control (SFC)    

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Meta-analysis of the diagnostic efficiency of frequency-doubling technology for primary glaucoma

LIU Ting, HE Xiangge

Frontiers of Medicine 2007, Volume 1, Issue 1,   Pages 109-114 doi: 10.1007/s11684-007-0021-7

Abstract: The overall diagnostic capabilities and utility of frequency-doubling technology (FDT) in patients withprimary glaucoma, which was diagnosed by standard automated perimetry (SAP) and/or optic disc appearanceThe included articles are of good quality and FDT can be a highly efficient diagnostic test for primary

Keywords： inclusion     sensitivity analysis     correction     specificity     appropriate    

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Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 386-393 doi: 10.1007/s11708-014-0323-9

Abstract: Accurate modeling and parameters of high voltage (HV) grid are critical for stability research of system frequencyIn this paper, simulation modeling of the system frequency was conducted of an interconnected power system

Keywords： high voltage (HV) grid     frequency stability parameter identification     primary frequency regulation (PFR    

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Frequency domain a9ctive vibration control of a flexible plate based on neural networks

Jinxin LIU, Xuefeng CHEN, Zhengjia HE

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 109-117 doi: 10.1007/s11465-013-0252-z

Abstract:

A neural-network (NN)-based active control system was proposed to reduce the low frequency noise radiationMulti-frequency control in frequency domain was achieved by simulation through the NN-based control systemsA pre-testing experiment of the control system on a real simply supported plate was conducted.The NN-based control algorithm was shown to perform effectively.These works lay a solid foundation for the active vibration control of mechanical structures.

Keywords： active vibration control (AVC)     neural network (NN)     low frequency noise     frequency domain control     multi-frequencycontrol    

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A comprehensive review of wind power based power system frequency regulation

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 611-634 doi: 10.1007/s11708-023-0876-6

Abstract: However, its low inertia characteristic may threaten the system frequency stability of the power systemThus, the capability of WP participating in the system frequency regulation has become a research hotspotIn this paper, the impact of WP on power system frequency stability is initially presented.In addition, various existing control strategies of WP participating in frequency regulation are reviewedThe pros and cons of each control strategy are also discussed.

Keywords： frequency regulation strategies     wind turbine generators     grid-forming control     model predictive control    

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Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 245-254 doi: 10.1007/s11708-012-0218-6

Abstract: This paper presents the analysis of load frequency control (LFC) of a deregulated two-area hydro-thermaland arrests the initial fall in frequency after disturbance.The inertial control responds to frequency deviations, which takes out the kinetic energy of the windturbine for improving the frequency response of the system.To enhance the participation of the doubly fed induction generator (DFIG) in the frequency control, optimal

Keywords： frequency regulation     fuzzy controller     de-regulated power system     doubly fed induction generator (DFIG)    

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Characterization on jointed rock masses based on PFC2D

Peitao WANG, Tianhong YANG, Qinglei YU, Honglei LIU, Penghai ZHANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 32-38 doi: 10.1007/s11709-013-0187-9

Abstract: In this paper, the PFC2D is combined with joint network generation method to examine the mechanical behaviorsnetwork based on the Monte-Carlo method is proposed using the programming language (FISH) embedded within PFC2D

Keywords： jointed rock masses     shape metrix3D     monte-carlo stochastic simulation method     PFC2D    

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Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 184-192 doi: 10.1007/s11708-012-0185-y

Abstract: Thus, it is important that wind turbines also contribute to system frequency control.The frequency deviation is considered by the controller to provide the inertial control.The optimal speed control parameters have been used for the DFIG to increases its participation in frequencycontrol.control.

Keywords： doubly fed induction generator (DFIG)     load frequency control     inertial control     wind energy conversion    

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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: floor isolation from the ground motions are filtered by the structure, leaving the majority of the frequencycontent of the input motion lower than the predominant frequency of the structure.Semi-active control with an control was adopted for the floor isolation system and a new input shapingThe control algorithm proved to be more advantageous than passive control because of its capacity toadjust control strategies according to the different motion frequency characteristics.

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

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System construction of a four-side primary permanent-magnet linear motor drive mechanical press

Jintao LIANG, Zhengfeng MING, Peida LI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 600-609 doi: 10.1007/s11465-020-0597-z

Abstract: A primary permanent-magnet linear motor (PPMLM) has a robust secondary structure and high force densityThe entire press control system is constructed to realize various flexible forming processes.The control system scheme is determined in accordance with the mathematical model of PPMLM, and activedisturbance rejection control is implemented in the servo controller.Then, a press prototype with 6 kN nominal force is fabricated, and the hardware platform of the control

Keywords： mechanical press     direct drive     primary permanent-magnet linear motor (PPMLM)     servo system     active disturbancerejection control (ADRC)     prototype experiment    

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Corpus-based research on English word recognition rates in primary school and word selection strategy Article

Wen-yan XIAO,Ming-wen WANG,Zhen WENG,Li-lin ZHANG,Jia-li ZUO

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 3,   Pages 362-372 doi: 10.1631/FITEE.1601118

Abstract: In this paper, we develop an English webpage corpus (EWC) and create a word frequency list using webBy comparing EWC word lists with the British National Corpus (BNC), we find that the BNC word frequencyWe also explore primary school students’ English word recognition rates by comparing the word frequencyThe results show that the word recognition rates for primary school children are relatively low in bothresults, we finally propose some word-selection strategies for compiling English textbooks for Chinese primary

Keywords： Corpus     Primary English     Recognition rate     Word frequency     Coverage rate    

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Frequency-domain-based Robustness Analysis for PID Generalized Predictive Control

Wang Fanzhen,Chen Zengqiang,Yao Xiangfeng,Yuan Zhuzhi

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 66-70

Abstract:

The closed-loop feedback structure of PID generalized predictive control (PID - GPC) is proposed,Further more, the influence of PID - GPC parameter tuning on its robustness is analyzed in frequency

Keywords： predictive control     robustness     frequency domain     small-gain criterion     PID control    

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Evaluation of power regeneration in primary suspension for a railway vehicle

Ruichen WANG, Zhiwei WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 265-278 doi: 10.1007/s11465-019-0571-9

Abstract: rail vehicles, this study presents the feasibility of using power regenerating dampers (PRDs) in the primaryPRDs are configured as hydraulic electromagnetic-based railway primary vertical dampers and evaluatedof the generator, and the electromagnetic configuration provides a controllable damping force to the primaryIn several case studies, generic railway vehicle primary suspension systems that are configured to includeResults indicate that PRDs can simultaneously replace conventional primary vertical dampers, regenerate

Keywords： railway vehicle     primary damper     power regeneration     ride comfort     running safety    

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Dynein axonemal heavy chain 10 deficiency causes primary ciliary dyskinesia in humans and mice

Frontiers of Medicine   Pages 957-971 doi: 10.1007/s11684-023-0988-8

Abstract: Primary ciliary dyskinesia (PCD) is a congenital, motile ciliopathy with pleiotropic symptoms.

Keywords： DNAH10     mice     motile cilia     mutation     primary ciliary dyskinesia    

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Approach for natural gas to be a primary energy source in China

Weihe HUANG, Jindian CHEN, Chuan FU, Yan HUANG

Frontiers of Engineering Management 2019, Volume 6, Issue 4,   Pages 467-476 doi: 10.1007/s42524-019-0068-6

Abstract: In the long-term adjustment of energy structure, natural gas has gradually become the primary energyFor natural gas to be the primary energy, the exploitation of gas resources must be expanded, resource

Keywords： natural gas     energy revolution     primary energy     utilization areas     approaching means    

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Title Author Date Type Operation

Capacity limitation of nuclear units in grid based on analysis of frequency regulation

Yiping DAI, Pan JIANG, Lin GAO, Weimin KAN, Xiaoqing XIAO, Ge JIN

Journal Article

Meta-analysis of the diagnostic efficiency of frequency-doubling technology for primary glaucoma

LIU Ting, HE Xiangge

Journal Article

Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Journal Article

Frequency domain a9ctive vibration control of a flexible plate based on neural networks

Jinxin LIU, Xuefeng CHEN, Zhengjia HE

Journal Article

A comprehensive review of wind power based power system frequency regulation

Journal Article

Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Characterization on jointed rock masses based on PFC2D

Peitao WANG, Tianhong YANG, Qinglei YU, Honglei LIU, Penghai ZHANG

Journal Article

Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

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

System construction of a four-side primary permanent-magnet linear motor drive mechanical press

Jintao LIANG, Zhengfeng MING, Peida LI

Journal Article

Corpus-based research on English word recognition rates in primary school and word selection strategy

Wen-yan XIAO,Ming-wen WANG,Zhen WENG,Li-lin ZHANG,Jia-li ZUO

Journal Article

Frequency-domain-based Robustness Analysis for PID Generalized Predictive Control

Wang Fanzhen,Chen Zengqiang,Yao Xiangfeng,Yuan Zhuzhi

Journal Article

Evaluation of power regeneration in primary suspension for a railway vehicle

Ruichen WANG, Zhiwei WANG

Journal Article

Dynein axonemal heavy chain 10 deficiency causes primary ciliary dyskinesia in humans and mice

Journal Article

Approach for natural gas to be a primary energy source in China

Weihe HUANG, Jindian CHEN, Chuan FU, Yan HUANG

Journal Article