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32nd Youth Academic Annual Conference of Chinese Association of Automation, YAC 2017

作者： Zhenghou, Yang Guoqiang, Zhang Yuan, Wen Ying, Deng Beijing Huaneng Xinrui Control Technology Co. Ltd. Beijing102209 China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources School of Renewable Energy North China Electric Power University Beijing102206 China

ISBN: (纸本)9781538629017

Because the environment that the wind turbine runs in is severe, the generating efficiency is low and the vibration of tower is very obvious. The consequence not only causes economic loss but also lead to the reduction of the wind turbine's lifetime. Basing on the traditional PI controlling system, this passage mainly studies to decrease the vibration of the tower by adjusting the controlling PI parameters and adding the tower damper. Establishing the wind turbine's linear, constant, SISO model, selecting the controlling parameters by MATLAB simulation at different isolate wind speed to achieve stable and fast controlling. At different isolate wind speeds, adding the tower damper to decrease the acceleration of tower. At last making global simulation with Bladed to verify and compare the traditional PI strategy with the new strategy. The result of the simulation with Bladed shows the strategy decreases the vibration of the tower and protect the wind turbine. © 2017 IEEE.

关键词： Towers

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Erratum: “Research status of replacement gases for SF6 in power industry” [AIP Adv. 10, 050702 (2020)]

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AIP Advances 2020年第9期10卷

作者： Shuangshuang Tian Xiaoxing Zhang Yann Cressault Juntai Hu Bo Wang Song Xiao Yi Li Narjisse Kabbaj 1Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System Hubei University of Technology Wuhan 430068 China 2LAPLACE (Laboratoire Plasma et Conversion d’Energie) UPS INPT Université de Toulouse 118 route de Narbonne CO F-31062 Toulouse Cedex 9 France 3State Grid Pingdingshan Power Supply Company Pingdingshan 467001 China 4School of Electrical Engineering Wuhan University Wuhan 430072 China

The authors regret that there are two errors in Table II of their article:1

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Simultaneous enantiomeric analysis of non-steroidal antiinflammatory drugs in environmental samples by chiral LCMS/MS: A case study in Beijing, China

Simultaneous enantiomeric analysis of non-steroidal antiinfl...

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持久性有机污染物论坛2017暨第十二届持久性有机污染物学术研讨会

作者： Ruixue Ma Han Qu Bin Wang Gang Yu Yunjiang Yu State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment Center for Environmental Health ResearchSouth China Institute of Environmental SciencesMEP Beijing Key Laboratory of Emerging Organic Contaminants Control State Key Joint Laboratory of Environmental Simulation and Pollution ControlSchool of EnvironmentTsinghua University

*** This study aims to develop a novel and reliable direct analytical method for three frequently-used NSAIDs at enantiomeric level in surface water using a polysaccharide-based chiral column by UHPLC-MS/*** mobile phase composition,flow rates,column temperatures and MS parameters were optimized to obtain high sensitivity,selectivity and satisfactory *** performance of proposed

关键词： NSAIDs UHPLC Simultaneous enantiomeric analysis of non-steroidal antiinflammatory drugs in environmental samples by chiral LCMS/MS A case study in Beijing

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Pay special attention to the transformation products of PPCPs in environment

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Emerging Contaminants 2017年第2期3卷 69-75页

作者： Lina Yin Bin Wang Honglin Yuan Shubo Deng Jun Huang Yujue Wang Gang Yu School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an 710055 China Beijing Key Laboratory of Emerging Organic Contaminants Control State Key Joint Laboratory of Environmental Simulation and Pollution Control Collaborative Innovation Centre for Regional Environmental Quality School of Environment Tsinghua University Beijing 100084 China

Pharmaceuticals and personal care products (PPCPs) have received increasing attention. However, their transformation products (TPs) and metabolites, sometimes even with environmental concentration and/or toxicity higher than their parent compounds, received attention far from enough. This study gives useful insight on the occurrence, fate and toxicity of PPCP TPs or metabolites in WWTPs, surface water and even drinking water, highlighting the necessity of studying the PPCP TPs formation, occurrence, toxicity and environment risk, and further evaluating the environmental risk caused by PPCPs comprehensively.

关键词： Pharmaceuticals and personal care products Transformation product Advanced oxidation process Wastewater Surface water

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A Real-time Hand Postures Estimation Method

A Real-time Hand Postures Estimation Method

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IEEE International Conference on Cyber Technology in Automation, control, and Intelligent systems

作者： Sunjie Chen Hongbin Ma Cong Han School of Automation Beijing Institute of Technology State Key Laboratory of Complex System Intelligent Control and Decision Beijing 100081 China

ISBN: (纸本)9781538604915

Hand postures can be used to achieve friendly human-machine interaction (HMI) for the advantages of simple expressions, informative instructions and unconstrained operations. However, most previous postures estimation methods have problems such as poor real time performance, low estimation accuracy, being sensitive to the varying illumination and relying on marks on hands or special assistant devices. In this paper, we will introduce an efficient real-time method to estimate hand postures with an ordinary monocular camera. This method contains two stages, which are hand segmentation and postures recognition. Rather segment objects from the whole image, we locate the hand within a local area first and then adapt motion, color and contour informations to segment the hand region accurately. After that, template matching algorithm is used to recognize hand postures with fingertips and shape features. The experimental results demonstrated that the introduced method realizes high estimation accuracy and fast processing speed. Furthermore, the method is robust to varying illumination conditions.

关键词： Microsoft Windows Image segmentation Image color analysis Estimation Motion segmentation Support vector machines Lighting Motion segmentation image colour analysis Microsoft Windows(software) Lighting Hand body position Support Vector Network image segmentation Subdivision of hand

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Framework and applications of WAMS light communication system

Framework and applications of WAMS light communication syste...

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2017 IEEE Conference on Energy Internet and Energy system Integration, EI2 2017

作者： Cao, Benqing Ochani, Manesh Kumar Zhang, Hengxu Xie, Wei Liu, Jinsong Bao, Hailong Key Laboratory of Power System Intelligent Dispatch and Control of the Ministry of Education Shandong University Jinan250061 China State Grid Shanghai Municipal Electric Power Company Shanghai200437 China Electric Power Research Institute State Grid Shanghai Municipal Electric Power Company Shanghai200437 China

ISBN: (纸本)9781538614273

The dynamic response of distribution network is becoming more and more complicated, as the rapid development of renewable energy. Wide Area Measurement system light (WAMS Light) can monitor the distribution network synchronously. The communication of real-time and high-speed data has been put on the research agenda. Firstly, analyzes the existing communication network of distribution network, and proposes to use Long Term Evolution (LTE, 4G) for WAMS Light. Secondly, discusses the IEC 60870-5-101 and the IEEE C37.118.2 protocol, and puts forward suggestions for the WAMS Light protocol. Thirdly, studies the communication security, and suggests using DES and RSA algorithm based on key Distribution Center (KDC) in WAMS Light. Finally, the main station has received the PMU Light data smoothly through a platform containing PMUs Light and simulated PMUs Light. This means 4G, WAMS Light communication protocol, DES and RSA based KDC can be used in the communication of WAMS Light. © 2017 IEEE.

关键词： Phasor measurement units

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Fast signal recovery from saturated measurements by linear loss and nonconvex penalties

arXiv

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arXiv 2018年

作者： He, Fan Huang, Xiaolin Liu, Yipeng Yan, Ming Institute of Image Processing and Pattern Recognition Shanghai Jiao Tong University The MOE Key Laboratory of System Control and Information Processing Shanghai200240 China School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu611731 China The Department of Computational Mathematics Science and Engineering Michigan State University MI United States

Sign information is the key to overcoming the inevitable saturation error in compressive sensing systems, which causes information loss and results in bias. For sparse signal recovery from saturation, we propose to use a linear loss to improve the effectiveness from existing methods that utilize hard constraints/hinge loss for sign consistency. Due to the use of linear loss, an analytical solution in the update progress is obtained, and some nonconvex penalties are applicable, e.g., the minimax concave penalty, the 0 norm, and the sorted 1 norm. Theoretical analysis reveals that the estimation error can still be bounded. Generally, with linear loss and nonconvex penalties, the recovery performance is significantly improved, and the computational time is largely saved, which is verified by the numerical experiments. Copyright © 2018, The Authors. All rights reserved.

关键词： Compressed sensing

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Development of a Compact Mobile Fuel laboratory in China 35

Development of a Compact Mobile Fuel Laboratory in China

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第35届中国控制会议

作者： ZHANG Mi HU Jingnan BAO Xiaofeng ZHU Rencheng XIE Shuxia ZU Lei SUN Chuanyong LV Jiuzhi State Environmental Protection Key Laboratory of Vehicle Emission Control and Simulation Chinese Research Academy of Environmental Sciences

ISBN: (纸本)9781509009107

This study discusses development of a mobile fuel laboratory in China,which integrates sulfur content detection device,vapor pressure testing device and fast simulation equipment for detergency *** compact mobile fuel lab can test detergency and sulfur content of both gasoline and diesel,and volatilization characteristic of *** research shows that taking many efficient measures to control influence factors can ensure portable devices providing reliable testing *** main influence factors such as vehicle vibration,essential resource supply,operating conditions and data quality control have been studied in this *** a three dimension dynamic model,consisted of vehicle,absorber and devices,can confirm the influence of ***,the solution of the model is used for guiding the design and selection of vibration damping *** power supply approaches,including commercial,generator and uninterruptible power supply,can provide sufficient *** split-phase circuit,voltage regulator and filter device are set up for decrease electrical signal *** and air circulation are two important elements which should be strictly controlled;thus,automotive air-conditioning system and an additionally onboard roof type air condition work alternatively to keep ambient temperature stable,and gas concentration alarm unit interlocked together with ventilation system ensures the car in a safe gas concentration *** prove that optimized equipment has good repeatability of ***,pre-treatment and pre-assessment are effective processes for blind sample analysis.

关键词： mobile fuel laboratory fuel quality sulfur content detergency Reid vapor pressure(RVP)

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A Method for system Reliability Evaluation Based on Inexact Interval Probability

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Journal of Physics: Conference Series 2019年第2期1213卷

作者： Chen Li Li Wang Qiao Yu Meng Li Bolun Wang Yingjian Zhou Zhewen Zhang State Grid Qingdao Power Supply Company Qingdao 266000 Shandong Province China State Grid Jiangsu Electric Power Co. Ltd. Research Institute Nanjing 210000 Jiangsu Province China Key Laboratory of Power System Intelligent Dispatch and control of Ministry of Education (Shandong university) Jinan 250061 Shandong Province China

With a large number of new components and new technologies widely used in power system, the method of power equipment outage probability based on law of large number will no longer be applicable due to the lack of statistical data. This paper considers the high order uncertainty of component failure probability under the condition of small sample size and uses interval values to represent the reliability parameters of the component when carrying out the risk assessment of power system, and propose Belief Universal Generating Function by combining Universal Generating Function with Belief Function Theory. This method can effectively avoid over estimation in interval arithmetic and get a more accurate interval value of power system risk assessment index.

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UV light tolerance and reactivation potential of tetracycline-resistant bacteria from secondary effluents of a wastewater treatment plant

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Journal of Environmental Sciences 2016年第3期28卷 146-153页

作者： Jing-Jing Huang Jinying Xi Hong-Ying Hu Yi Li Sun-Qin Lu Fang Tang Yu-Chen Pang State Key Joint Laboratory of Environmental Simulation and Pollution Control State Environmental Protection Key Laboratory of Microorganism Application and Risk ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China College of Environmental Science and Engineering Hohai UniversityNanjing 210098China China Power Engineering Consulting Group Co. LTD.Beijing 100120China

Tetracycline-resistant bacteria（TRB） are of concern as emerging microbial contaminants in reclaimed *** understand the effects of UV disinfection on TRB,both inactivation and reactivation profiles of TRB,as well as 16 tetracycline-resistant isolates from secondary effluent,were characterized in this *** inactivation ratio of TRB was significantly lower（3.0-log） than that of heterotrophic bacteria（〉4.0-log） in the secondary ***,the proportion of TRB significantly increased from 1.65%to 15.51%under20 mJ/cm^2 ultraviolet（UV） *** inactivation rates of tetracycline-resistant isolates ranged from 0.57/s to 1.04/s,of which tetracycline-resistant Enterobacter-1 was the most tolerant to UV *** reactivation of TRB,tetracycline-resistant isolated strains,as well as heterotrophic bacteria commonly occurred in the secondary effluent even after20 mJ/cm^2 UV *** colony forming ability of TRB and heterotrophic bacteria reached 3.2-log and 3.0-log under 20 mJ/cm^2 UV exposure after 22 hr *** final inactivation ratio of tetracycline-resistant Enterobacter-1 was 1.18-log under 20 mJ/cm^2 UV exposure after 22 hr incubation,which is similar to those of TRB（1.18-log） and heterotrophic bacteria（1.19-log）.The increased proportion of TRB and the reactivation of tetracycline-resistant enterobacteria in reclaimed water could induce a microbial health risk during wastewater reuse.

关键词： UV disinfection Tetracycline-resistant bacteria Inactivation Dark repair Reclaimed water

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