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Decoupling optimization of integrated energy system based on energy quality character

Shixi MA, Shengnan SUN, Hang WU, Dengji ZHOU, Huisheng ZHANG, Shilie WENG

《能源前沿（英文）》 2018年 第12卷 第4期   页码 540-549 doi: 10.1007/s11708-018-0597-4

摘要：

Connections among multi-energy systems become increasingly closer with the extensive application of various energy equipment such as gas-fired power plants and electricity-driven gas compressor. Therefore, the integrated energy system has attracted much attention. This paper establishes a gas-electricity joint operation model, proposes a system evaluation index based on the energy quality character after considering the grade difference of the energy loss of the subsystem, and finds an optimal scheduling method for integrated energy systems. Besides, according to the typical load characteristics of commercial and residential users, the optimal scheduling analysis is applied to the integrated energy system composed of an IEEE 39 nodes power system and a 10 nodes natural gas system. The results prove the feasibility and effectiveness of the proposed method.

关键词： integrated energy system     energy quality character     optimization     electric power system     natural gas system    

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Impact of energy structure adjustment on air quality: a case study in Beijing, China

Bin ZHAO, Jiayu XU, Jiming HAO

《环境科学与工程前沿（英文）》 2011年 第5卷 第3期   页码 378-390 doi: 10.1007/s11783-011-0357-8

摘要： Energy consumption is a major cause of air pollution in Beijing, and the adjustment of the energy structure is of strategic importance to the reduction of carbon intensity and the improvement of air quality. In this paper, we explored the future trend of energy structure adjustment in Beijing till 2020, designed five energy scenarios focusing on the fuel substitution in power plants and heating sectors, established emission inventories, and utilized the Mesoscale Modeling System Generation 5 (MM5) and the Models-3/Community Multiscale Air Quality Model (CMAQ) to evaluate the impact of these measures on air quality. By implementing this systematic energy structure adjustment, the emissions of PM , PM , SO , NO , and non-methane volatile organic compounds (NMVOCs) will decrease distinctly by 34.0%, 53.2%, 78.3%, 47.0%, and 30.6% respectively in the most coal-intensive scenario of 2020 compared with 2005. Correspondingly, MM5-Models-3/CMAQ simulations indicate significant reduction in the concentrations of major pollutants, implying that energy structure adjustment can play an important role in improving Beijing’s air quality. By fuel substitution for power plants and heating boilers, PM , PM , SO , NO , and NMVOCs will be reduced further, but slightly by 1.7%, 4.5%, 11.4%, 13.5%, and 8.8% respectively in the least coal-intensive scenario. The air quality impacts of different scenarios in 2020 resemble each other, indicating that the potential of air quality improvement due to structure adjustment in power plants and heating sectors is limited. However, the CO emission is 10.0% lower in the least coal-intensive scenario than in the most coal-intensive one, contributing to Beijing’s ambition to build a low carbon city. Except for energy structure adjustment, it is necessary to take further measures to ensure the attainment of air quality standards.

关键词： Beijing     energy structure adjustment     air quality     Community Multiscale Air Quality Model (CMAQ)     scenario    

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Inhibition character of crotonaldehyde manufacture wastewater on biological acidification

《环境科学与工程前沿（英文）》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1403-9

摘要：

• The inhibition of the main organic pollutions in CMW was demonstrated.

关键词： Crotonaldehyde manufacture wastewater     Biological acidification     Volatile fatty acids     Inhibition     Toxic units    

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Analysis and prediction of the influence of energy utilization on air quality in Beijing

LI Lin, HAO Jiming, HU Jingnan

《环境科学与工程前沿（英文）》 2007年 第1卷 第3期   页码 339-344 doi: 10.1007/s11783-007-0058-5

摘要： This work evaluates the influence of energy consumption on the future air quality in Beijing, using 2000 as the base year and 2008 as the target year. It establishes the emission inventory of primary PM, SO and NO related to energy utilization in eight areas of Beijing. The air quality model was adopted to simulate the temporal and spatial distribution of each pollutant concentration in the eight urban areas. Their emission, concentration distribution, and sectoral share responsibility rate were analyzed, and air quality in 2008 was predicted. The industrial sector contributed above 40% of primary PM and SO resulting from energy consumption, while vehicles accounted for about 65% of NO. According to the current policy and development trend, air quality in the eight urban areas could become better in 2008 when the average concentrations of primary PM, SO and NO related to energy utilization at each monitored site are predicted to be about 25, 50 and 51 μg/m, respectively.
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Reverse driving character of 2-DOF closed chain haptic device

GUO Wei-dong, GUO Xin, ZHANG Yu-ru

《机械工程前沿（英文）》 2006年 第1卷 第3期   页码 356-359 doi: 10.1007/s11465-006-0029-8

摘要： Reverse driving character plays an important role in evaluating the performance of a haptic device, and it is the primary rule in the mechanical design. This article mainly investigates the problem of 2-DOF haptic device design f
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一适用于超多类手写汉字识别的新改型Adaboost算法

丁晓青,付强

《中国工程科学》 2009年 第11卷 第10期   页码 19-24

摘要：

提出一种适用于超多类手写汉字识别的新改型Adaboost算法，采用基于描述性模型的多类分类器（modified quadratic discriminant function，MQDF）作为Adaboost基元分类器，可直接进行多类分类，无需将多类问题转化为多个两类问题处理，其训练复杂度大大低于已有的多类Adaboost算法。算法提出根据广义置信度更新样本权重，实验证明这种算法适用于大规模多类分类问题。为了降低算法的识别复杂度，提出从所有训练后得到的Adaboost基元分类器组中选择一个最优的基元分类器作为最终分类器的方法进行删减。在HCL2000及THOCR-HCD数据集上进行实验证明，所提改型Adaboost算法提高了识别率的有效性，该算法的相对错误率比现有最优算法分别下降了14.3 %，8.1 %和19.5 %。

关键词： 多类Adaboost算法     手写汉字识别     广义置信度     改进的二次鉴别函数    

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Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary

Guanghai GAO, Roger A. FALCONER, Binliang LIN

《环境科学与工程前沿（英文）》 2013年 第7卷 第2期   页码 211-218 doi: 10.1007/s11783-012-0464-1

摘要： In this study, emphasis has focused on assessing the potential hydro-environmental impacts of a barrage across the Severn Estuary, with a numerical model being developed and applied to the estuary to assess the impacts of proposed Severn Barrage on the hydrodynamic, sediment transport and faecal indicator organism distribution within the estuary. The results show that the Severn Barrage has the potential to reduce the tidal currents in a highly dynamic estuary. This leads to the reduction of suspended sediment concentrations, which in turn affects the bacterial transport processes which is highly related to the sediment transport processes.

关键词： water quality indicator     Severn Estuary     numerical model     tidal energy    

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Quality and efficiency improvement technology for five megawatt offshore wind turbines and its application

Huali HAN

《工程管理前沿（英文）》 2020年 第7卷 第4期   页码 618-621 doi: 10.1007/s42524-020-0142-0

关键词： renewable energy     megawatt offshore wind turbine     technology-driven     quality improvement    

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Effect of harmonic distortion on electric energy meters of different metrological principles

Illia DIAHOVCHENKO, Vitalii VOLOKHIN, Victoria KUROCHKINA, Michal ŠPES, Michal KOSTEREC

《能源前沿（英文）》 2019年 第13卷 第2期   页码 377-385 doi: 10.1007/s11708-018-0571-1

摘要： This paper deals with the errors of electric energy metering devices as a result of distortions in the shape of the curves of voltage and current load. It is shown and proved that the errors in energy measurements depend on the design and the algorithms used in electricity meters. There are three main types of metering devises having different principles: inductive (electro-mechanical), electronic static, and digital electronic (microprocessor). Each of these types has its measuring features. Some devices take into account all the harmonic distortions and the constant component which occur in the network while others measure the power and energy values of the fundamental harmonic only. Such traits lead to the discrepancies in the readings of commercial electric energy meters of different types. Hence, the violations in the measurement system unity occur, and a significant error can be observed in the balance of transmitted/consumed electric energy.

关键词： current     distortion     electric energy meter     harmonics     power quality    

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能源革命推动中部地区崛起的理论分析与实施路径

何继善,傅春,龙妍

《中国工程科学》 2021年 第23卷 第1期   页码 60-67 doi: 10.15302/J-SSCAE-2021.01.013

摘要：

中部地区崛起是我国区域发展的重大战略，近年来中部地区取得了明显的后发优势，随着我国进入高质量发展阶段，中部地区需要紧跟步伐、趁势而上，提升综合实力和竞争力。能源是经济和社会发展的基础，高质量发展需要以能源革命为支撑并建立高质量的能源体系。中部地区 5 个省份资源禀赋优良，但存在新能源发展潜力不足、能源生产量不足、供需不平衡等问题。本文阐述了能源革命推动中部地区崛起的内在机理，从经济、社会、生态 3 个维度着手分析，认为推动中部地区崛起的能源需求要有“量”“质”的提升，进而探讨中部地区能源革命中长期发展的总体目标。研究建议重点推进三方面工作：节能减排提升能效，促进绿色发展；发展多能互补技术，促进清洁能源消纳；加强能源省际合作，确保能源外部供应安全。结合中部地区的实际发展情况，提出了绿色低碳发展、供给侧改革、创新驱动战略、优化能源配置、多能融合等实施路径，以期精准助推中部地区崛起。

关键词： 能源革命     中部地区崛起     资源禀赋     高质量发展    

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Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques

Salim CHENNAI,M-T BENCHOUIA

《能源前沿（英文）》 2014年 第8卷 第2期   页码 221-239 doi: 10.1007/s11708-014-0317-7

摘要： This paper presents a novel and efficient control scheme for unified power quality conditioner (UPQC) based on three-level neutral point clamped (NPC) inverter using fuzzy logic techniques. The proposed UPQC is capable of mitigating source current harmonics and compensate all voltage disturbances such as voltage sags, swells, unbalances and harmonics. It is designed by the integration of series and shunt active filters (AFs) sharing a common DC bus capacitor. The DC voltage is maintained constant using proportional integral voltage controller. The synchronous reference frame (SRF) theory is used to get the reference signals for shunt active power filters (APFs) and the power reactive theory (p-q theory) for series APFs. The shunt and series APF reference signals derived from the control algorithm and sensed signals are injected in two controllers to generate switching signals. To improve the UPQC capability, fuzzy logic techniques are introduced to control the series APF. The performances of the proposed UPQC system are evaluated in terms of power factor correction, mitigation of voltage or current harmonics and all other voltage disturbances compensation using Matlab-Simulink software and SimPowerSystem toolbox. The simulation results illustrate the performance of the proposed UPQC at the common connection point of the nonlinear load to improve the power energy quality.

关键词： three-level neutral point clamped (NPC) inverter     unified power quality conditioner (UPQC)     current harmonics mitigation     fuzzy logic controller     voltage disturbance compensation     shunt active filter     series active filter     power quality energy improvement    

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From total quality management to Quality 4.0: A systematic literature review and future research agenda

《工程管理前沿（英文）》 2023年 第10卷 第2期   页码 191-205 doi: 10.1007/s42524-022-0243-z

摘要： Quality 4.0 is an emerging concept that has been increasingly appreciated because of the intensification of competition, continually changing customer requirements and technological evolution. It deals with aligning quality management practices with the emergent capabilities of Industry 4.0 to improve cost, time, and efficiency and increase product quality. This article aims to comprehensively review extant studies related to Quality 4.0 to uncover current research trends, distil key research topics, and identify areas for future research. Thus, 46 journal articles extracted from the Scopus database from 2017 to 2022 were collected and reviewed. A descriptive analysis was first performed according to the year-wise publication, sources of publication, and research methods. Then, the selected articles were analyzed and classified according to four research themes: Quality 4.0 concept, Quality 4.0 implementation, quality management in Quality 4.0, and Quality 4.0 model and application. By extracting the literature review findings, we identify the Quality 4.0 definitions and features, develop the quality curve theory, and highlight future research opportunities. This study supports practitioners, managers, and academicians in effectively recognizing and applying Quality 4.0 to enhance customer satisfaction, achieve innovation enterprise efficiency, and increase organizational competitiveness in the era of Industry 4.0.

关键词： quality management     Quality 4.0     Industry 4.0     literature review     predictive quality    

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Research and establishment of enterprise quality metadata standard

SONG Han, LI Jie, ZHANG Genbao

《机械工程前沿（英文）》 2008年 第3卷 第1期   页码 106-110 doi: 10.1007/s11465-008-0019-0

摘要： Enabling quality managers to utilize and manage quality data efficiently under modern quality management circumstances is a primary issue for improving enterprise quality management. A concept of quality metadata is proposed in this paper, which can help quality managers gain a deeper understanding of various features of quality data and establish a more stable foundation for further use and management of such data. The procedure of establishing quality metadata standards is emphasized in the paper, and the content structure and description scheme are given. Finally, a summary is made and future work is prospected.

关键词： enterprise quality     foundation     description     quality management     primary    

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我国工程管理学科现状及发展

汪应洛,王能民

《中国工程科学》 2006年 第8卷 第3期   页码 11-17

摘要：

提升工程项目的管理效率需要大量工程管理专业人才，现有的工程管理培养体系与我国经济与社会发展需要仍存在一定距离。基于国内各院校的调研分析了我国工程管理学科的现状，探讨了工程管理学科特征；基于调研与分析结果研究了我国工程管理学科教育的发展问题，指出可以从以下五方面来提升工程管理教育：充分发挥各院校优势，准确合理定位、各自办出特色；调整与优化工程管理学科的知识体系；加强与企业的联系、提升工程管理专业人才的实践能力；完善工程管理学科的办学层次，明确各层次的培养目标；改革工程管理教学方法和手段。

关键词： 工程管理     学科特征     发展    

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The Environmental Impact of the Three Gorges Project and the Countermeasures

You-mei Lu,Cun-liang Shang

《工程管理前沿（英文）》 2014年 第1卷 第2期   页码 120-128 doi: 10.15302/J-FEM-2014019

摘要： The Three Gorges Project (TGP) is a landmark Chinese hydroelectric project with the goal of harnessing the Yangtze River and developing its water resources. Because of its enormous size and far-reaching influence, the project’s impact on the Yangtze River’s original ecological environment has been a concern to many people. This article examines the environmental effects of TGP with regard to reservoir-induced seismicity and bank stability, climate changes, sedimentation and bank erosion, the protection of aquatic species and water quality, and resettlement. Based on the operation monitoring data of TGP in 10 years (2003—2012), this article analyzes the tendency of reservoir-induced seismicity and bank stability, developing trend of sedimentation and bank erosion, the interplay between climate change and TGP, the distribution and cause of water contamination, the situation of aquatic species’ protection and living situation of resettled residents. At the same time, this article lists the comprehensive benefits of TGP in flood control, power generation, shipping, water supply, energy conservation and emission reduction. In the end, the authors deem that there is a dynamic and harmonious relationship between humankind and nature. The cognition about TGP will be progressed in practice, and harmonious relationship between the environment and TGP will be achieved through more practice.

关键词： the Three Gorges Project     ecosystem     aquatic species     water quality     flood control     disaster alleviation     energy saving     emission reduction    

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标题 作者 时间 类型 操作

Decoupling optimization of integrated energy system based on energy quality character

Shixi MA, Shengnan SUN, Hang WU, Dengji ZHOU, Huisheng ZHANG, Shilie WENG

期刊论文

Impact of energy structure adjustment on air quality: a case study in Beijing, China

Bin ZHAO, Jiayu XU, Jiming HAO

期刊论文

Inhibition character of crotonaldehyde manufacture wastewater on biological acidification

期刊论文

Analysis and prediction of the influence of energy utilization on air quality in Beijing

LI Lin, HAO Jiming, HU Jingnan

期刊论文

Reverse driving character of 2-DOF closed chain haptic device

GUO Wei-dong, GUO Xin, ZHANG Yu-ru

期刊论文

一适用于超多类手写汉字识别的新改型Adaboost算法

丁晓青,付强

期刊论文

Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary

Guanghai GAO, Roger A. FALCONER, Binliang LIN

期刊论文

Quality and efficiency improvement technology for five megawatt offshore wind turbines and its application

Huali HAN

期刊论文

Effect of harmonic distortion on electric energy meters of different metrological principles

Illia DIAHOVCHENKO, Vitalii VOLOKHIN, Victoria KUROCHKINA, Michal ŠPES, Michal KOSTEREC

期刊论文

能源革命推动中部地区崛起的理论分析与实施路径

何继善,傅春,龙妍

期刊论文

Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques

Salim CHENNAI,M-T BENCHOUIA

期刊论文

From total quality management to Quality 4.0: A systematic literature review and future research agenda

期刊论文

Research and establishment of enterprise quality metadata standard

SONG Han, LI Jie, ZHANG Genbao

期刊论文

我国工程管理学科现状及发展

汪应洛,王能民

期刊论文

The Environmental Impact of the Three Gorges Project and the Countermeasures

You-mei Lu,Cun-liang Shang

期刊论文