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DSM in an area consisting of residential, commercial and industrial load in smart grid

Balasubramaniyan SARAVANAN

《能源前沿（英文）》 2015年 第9卷 第2期   页码 211-216 doi: 10.1007/s11708-015-0351-0

摘要： With the latest introduction of the demand side management (DSM) in smart grids, the power distribution units are able to modify the load schedules of the consumers. This involves a co-operative interaction of the utility and the consumers so as to achieve customer load modifications in which the customer, utility and society all are benefited. The interaction is performed with the help of the devices known as the smart meter. This paper shows the use of game theory and logical mathematical expressions in order to achieve the objectives. The objectives are to minimize the peak to average ratio (PAR) and the energy cost. The outcome of the game between supplier and customers helps to shape the load profile. The design proposed in this paper is very user-friendly and is based on simple logarithmic programming computations. In this paper, residential, commercial and industrial types of loads are taken into account. A basic 24 h load schedule along with the fluctuating prices at each hour of the day is forecasted by the supplier of the various shiftable and non-shiftable loads and then that schedule is conveyed to the user. The users are encouraged to shift their high load devices to off-peak hours which will not only reduce their electricity costs but also substantially reduce the PAR in the load demand.

关键词： demand side management (DSM)     smart grids     peak to average ratio (PAR)     smart meters and logarithmic price function    

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Smart residential energy management system for demand response in buildings with energy storage devices

S. L. ARUN, M. P. SELVAN

《能源前沿（英文）》 2019年 第13卷 第4期   页码 715-730 doi: 10.1007/s11708-018-0538-2

摘要： In the present scenario, the utilities are focusing on smart grid technologies to achieve reliable and profitable grid operation. Demand side management (DSM) is one of such smart grid technologies which motivate end users to actively participate in the electricity market by providing incentives. Consumers are expected to respond (demand response (DR)) in various ways to attain these benefits. Nowadays, residential consumers are interested in energy storage devices such as battery to reduce power consumption from the utility during peak intervals. In this paper, the use of a smart residential energy management system (SREMS) is demonstrated at the consumer premise to reduce the total electricity bill by optimally time scheduling the operation of household appliances. Further, the SREMS effectively utilizes the battery by scheduling the mode of operation of the battery (charging/floating/discharging) and the amount of power exchange from the battery while considering the variations in consumer demand and utility parameters such as electricity price and consumer consumption limit (CCL). The SREMS framework is implemented in Matlab and the case study results show significant yields for the end user.

关键词： smart grid     demand side management (DSM)     demand response (DR)     smart building     smart appliances     energy storage    

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Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

《工程管理前沿（英文）》   页码 452-461 doi: 10.1007/s42524-022-0209-1

摘要： This study combines multi-regional input–output (MRIO) model with linear programming (LP) model to explore economic structure adjustment strategies for the reduction of carbon dioxide (CO2) emissions. A particular feature of this study is the identification of the optimal regulation sequence of final products in various regions to reduce CO2 emissions with the minimum loss in gross domestic product (GDP). By using China’s MRIO tables 2017 with 28 regions and 42 economic sectors, results show that reduction in final demand leads to simultaneous reductions in GDP and CO2 emissions. Nevertheless, certain demand side regulation strategy can be adopted to lower CO2 emissions at the smallest loss of economic growth. Several key final products, such as metallurgy, nonmetal, metal, and chemical products, should first be regulated to reduce CO2 emissions at the minimum loss in GDP. Most of these key products concentrate in the coastal developed regions in China. The proposed MRIO–LP model considers the inter-relationship among various sectors and regions, and can aid policy makers in designing effective policy for industrial structure adjustment at the regional level to achieve the national environmental and economic targets.

关键词： CO2 emissions     demand side regulation     multi-regional input–output model     linear programming model    

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Optimal dynamic emergency reserve activation using spinning, hydro and demand-side reserves

S. Surender REDDY,P. R. BIJWE,A. R. ABHYANKAR

《能源前沿（英文）》 2016年 第10卷 第4期   页码 409-423 doi: 10.1007/s11708-016-0431-9

摘要： This paper proposes an optimal dynamic reserve activation plan after the occurrence of an emergency situation (generator/transmission line outage, load increase or both). An optimal plan is developed to handle the emergency, using the coordinated action of fast and slow reserves, for secure operation with minimum overall cost. It considers the reserves supplied by the conventional thermal generators (spinning reserves), hydro power units and load demands (demand-side reserves). The optimal backing down of costly/fast reserves and bringing up of slow reserves in each sub-interval in an integrated manner is proposed. The proposed reserve activation approaches are solved using the genetic algorithm, and some of the simulation results are also compared using the Matlab optimization toolbox and the general algebraic modeling system (GAMS) software. The simulation studies are performed on the IEEE 30, 57 and 300 bus test systems. These results demonstrate the advantage of the proposed integrated/dynamic reserve activation plan over the conventional/sequential approach.

关键词： demand-side reserves     dynamic reserve activation approach     hydro power units     post contingency     sequential reserve activation approach     spinning reserves    

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An overview of selected topics in smart grids

S. Hari Charan CHERUKURI,Balasubramaniyan SARAVANAN

《能源前沿（英文）》 2016年 第10卷 第4期   页码 441-458 doi: 10.1007/s11708-016-0418-6

摘要： Smart technologies when used in the traditional grid infrastructure will provide a different environment and working conditions in the grid by bringing the required smartness into the grid, called the smart grid. The smart grid can play a major role in the upcoming days to come because there is a necessity to integrate coordinated renewable energy resources into the grid and to operate the grids at a higher efficiency considering many aspects including reliability of the supply. Apart from this, there is a necessity to manage the demand supply gap in the smart grid by optimally scheduling the generators or by effectively scheduling the demand side resources instead of going for the traditional methods like partial or full load shedding. This paper presents an overview on the present state-of-the-art of smart grid technologies and broadly classifies the papers referred into two major areas, papers based on improvement of operational efficiency in smart grids and papers based on smartness in maintaining the demand supply gap. Some of the papers projected in this work also give a brief overview of the necessity of the smart grid.

关键词： smart grid     demand side management     electric springs     operational efficiency    

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基于广域低功耗网络的能源物联网

宋永华,林今,唐明,董树锋

《工程（英文）》 2017年 第3卷 第4期   页码 460-466 doi: 10.1016/J.ENG.2017.04.011

摘要：

为了应对严峻的环境压力以及化石能源的枯竭危机，能源行业正在世界范围内共同推进能源互联网这一新型能源系统，目标以智能电网为骨架，综合电、气、热等多种能源形式，大幅提升能源系统对可再生能源的消纳能力。能源的需求侧是能源互联网的发展重点，也是新能源消纳灵活性的全新来源，具有巨大的技术发展潜力与市场空间。然而现有的能源信息技术并不能完全适应能源需求侧的运行特点，难以被高效经济地应用于能源互联网的需求侧管控之中，已成为当前能源需求侧技术发展的瓶颈。为了突破这一技术难点，本文提出利用通信领域近年来高速发展的广域低功耗网络（low power wide area network, LPWAN）技术，构造全新的能源物联网，从而为能源互联网需求侧的发展带来了全新的技术突破。LPWAN 是一类具有远距离、低功耗、海量接入、低运维成本的通信技术的总称，与Wi-Fi、蓝牙、紫蜂（ZigBee）等局域物联网技术相比真正实现了大区域的低成本覆盖。本文介绍以窄带物联网（narrow band internet of things, NB-IoT）和运程（longrange, LoRa）为代表的LPWAN 技术，提出基于该技术实现的能源物联网体系架构。最后，本文展望了能源物联网技术驱动下，能源互联网需求侧的典型应用场景。

关键词： 能源物联网     广域低功耗网络     NB-IoT     LoRa     需求侧    

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Demand response based congestion management in a mix of pool and bilateral electricity market model

Ashwani KUMAR, Charan SEKHAR

《能源前沿（英文）》 2012年 第6卷 第2期   页码 164-178 doi: 10.1007/s11708-012-0187-9

摘要： The independent system operator (ISO) is a key element in the deregulated structure with one of the responsibilities of transmission congestion management (CM). The ISO opts market based solutions to manage congestion receiving bids from generation companies (GENCOs) as well as distribution companies (DISCOMs) to reschedule their generation and relocate demand. The nodal prices increases during the congestion hours and the demand response to nodal prices will be an effective tool for the control of congestion. In this paper, demand response-based CM has been proposed for a mix of pool and bilateral electricity market model. The linear bid curves have been considered for demand bids to respond to the congestion in the network. The bilateral demand has been obtained with minimum deviations in their preferred schedule. The impact of flexible alternating current transmission system (FACTS) devices viz static var compensator (SVC) and thyristor controlled series compensator (TCSC) has also been considered for demand management during congestion. Multi-line congestion cases have been considered to study the impact on demand response without and with FACTS devices. The proposed approach has been tested on the IEEE 24 bus test system.

关键词： bid function     congestion management (CM)     demand response     pool+bilateral electricity market     static var compensator (SVC)     thyristor controlled series compensator (TCSC)    

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设计结构矩阵在复杂产品协同设计过程的应用

徐路宁,张和明,张永康

《中国工程科学》 2005年 第7卷 第6期   页码 41-44

摘要：

将矩阵方法应用到复杂产品的开发过程中，用DSM（设计结构矩阵）量化表达复杂产品的设计流程，并通过DSM的分析与重构进行复杂产品的协同设计规划，以缩短产品设计周期，降低开发成本。

关键词： DSM（设计结构矩阵）     分析     重构     规划    

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协同设计中基于DSM过程重构的研究

徐路宁,张和明,张永康

《中国工程科学》 2006年 第8卷 第5期   页码 52-57

摘要：

将设计结构矩阵方法应用到复杂产品的协同设计开发过程中，通过分析设计行为之间的信息交互获得DSM的量化表达，利用图论中的强连通分支问题算法识别耦合活动集，并在此基础上根据DSM重构原则对DSM进行模块化的过程重构

关键词： DSM（设计结构矩阵）     过程重构     耦合     撕裂    

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具有智能外围的智能电网——能源互联网架构 Artical

Felix F. Wu,Pravin P. Varaiya,Ron S. Y. Hui

《工程（英文）》 2015年 第1卷 第4期   页码 436-446 doi: 10.15302/J-ENG-2015111

摘要：

未来的智能电网应能够实现能源互联网的愿景：数百万用户利用可再生能源，在家庭、办公室和工厂生产所需的能源，并实现共享；广泛使用电动车辆和本地储能系统；利用互联网技术将当前电网升级为实现能源共享的互联网络。为实现这个愿景，本文提出了具有智能外围的智能电网的架构和概念，或称为智能GRIP。GRIP架构的构建模块被称为集群，配置能量管理系统(EMS) 的输电网是一个在电网核心的集群，外围的配电网，微电网和智能楼宇及住宅均为(外围的) 集群。这些集群全部采用分层结构。GRIP的分层架构可让电网实现从当前电网功能到未来即插即用型电网的无缝过渡。所有的集群都包括三个基本功能，即调度、消除波动和故障缓解。为实现上述功能，本文提出了风险约束的调度方法；开发了一种名为“电力弹簧”的新型装置，用于消除外围集群的电力波动；另外还讨论了故障的缓解措施。

关键词： 智能电网     未来电网     能源互联网     能量管理系统     可再生能源接入     电力系统运行     电力系统控制     配电自动化系统     需求侧管理    

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Using balance of seasonal herbage supply and demand to inform sustainable grassland management on the

Xinquan ZHAO, Liang ZHAO, Qi LI, Huai CHEN, Huakun ZHOU, Shixiao XU, Quanmin DONG, Gaolin WU, Yixin HE

《农业科学与工程前沿（英文）》 2018年 第5卷 第1期   页码 1-8 doi: 10.15302/J-FASE-2018203

摘要： To mitigate the impacts of grassland degradation on the Qinghai–Tibetan Plateau (QTP), in recent decades China has been implementing large-scale conservation programs and has invested about 42 billion CNY (7 billion USD). However, these programs are faced with major challenges involving trade-offs between ecological function, livestock production and income of pastoralists. Scientific assessments, as well as technical and policy issues, have not fully captured the complex ecological, social and economic dynamics of the challenges facing grassland management on the QTP. Pastoral livestock production on the QTP is characterized by imbalance in both quality and quantity between livestock seasonal nutrient requirements and herbage production, which forces pastoralists to keep larger numbers of livestock for longer periods, leading to overgrazing. To solve these problems, an integrated crop-livestock system is promoted to improve the efficiency of livestock production and conserve natural grassland as well for a sustainable system for the QTP.

关键词： ecosystem function     grassland degradation     grassland management     integrated rangeland-cropland-livestock production system     Qinghai–Tibetan Plateau    

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需求侧智慧能源系统关键技术分析

王成山, 王丹, 李立浧, 贾宏杰, 王伟亮

《中国工程科学》 2018年 第20卷 第3期   页码 132-140 doi: 10.15302/J-SSCAE-2018.03.019

摘要：

需求侧智慧能源系统作为能源互联网的重要组成部分，是未来能源系统的重要组织形式，对实现可再生能源分布式就地消纳，提升终端能源利用效率等具有重要意义。本文探讨了需求侧智慧能源系统的构成特点，列举了与需求侧智慧能源系统能源生产、传输、分配、转换、存储、消费等环节相关的关键设备与技术，分析了需求侧智慧能源系统的产业发展模式。最后，进一步针对需求侧智慧能源系统的发展前景，分实验示范阶段、应用推广阶段以及普遍应用、完全市场化阶段进行了阐述。

关键词： 智慧能源系统     关键技术     发展模式     发展前景    

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Performance analysis of series/parallel and dual side LCC compensation topologies of inductive power

P. Srinivasa Rao NAYAK, Dharavath KISHAN

《能源前沿（英文）》 2020年 第14卷 第1期   页码 166-179 doi: 10.1007/s11708-018-0549-z

摘要： In an inductive battery charging system, for better power transfer capability and attaining required power level, compensation is necessary. This paper analyzes series/parallel (S/P) and dual side inductor-capacitor-capacitor (LCC) compensation topologies for inductive power transfer of electric vehicle (EV) battery charging system. The design and modeling steps of inductive power transfer for electric vehicle battery charging system are presented. Besides, the equivalent electrical circuits are used to describe the circuit compensation topologies. The results convey that the efficiency of dual side LCC compensation is higher than that of S/P compensation at variable mutual inductance (misalignment).

关键词： series/parallel compensation     electric vehicle (EV)     dual side LCC compensation     inductive power transfer    

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Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam) side

SHI Huangying, CHEN Wenjuan, ZHANG Liming

《化学科学与工程前沿（英文）》 2007年 第1卷 第1期   页码 72-75 doi: 10.1007/s11705-007-0015-7

摘要： New graft copolymers were synthesized by grafting N-vinylcaprolactam onto dextran. Their composition and structure were investigated by elemental analyses, infrared spectra and thermogravimetric analyses. By optical transmittance measurements, it was found that the aqueous solutions of these graft copolymers showed a temperature-dependent transmittance change due to the introduction of thermosensitive poly (-vinylcaprolactam) graft chains. Moreover, the lower critical solution temperature (LCST) of the graft copolymer in aqueous solution was dependent on its grafting extent and concentration. The LCST value was found to increase with the increase of the grafting extent and decrease with the increase of the copolymer concentration. With these stimuli-response properties, such polysaccharide derivative may hold potential applications in biomedicine and biotechnology.

关键词： transmittance     copolymer concentration     LCST     temperature     elemental    

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Understanding the demand predictability of bike share systems: A station-level analysis

《工程管理前沿（英文）》   页码 551-565 doi: 10.1007/s42524-023-0279-8

摘要： Predicting demand for bike share systems (BSSs) is critical for both the management of an existing BSS and the planning for a new BSS. While researchers have mainly focused on improving prediction accuracy and analysing demand-influencing factors, there are few studies examining the inherent randomness of stations’ observed demands and to what degree the demands at individual stations are predictable. Using Divvy bike-share one-year data from Chicago, USA, we measured demand entropy and quantified the station-level predictability. Additionally, to verify that these predictability measures could represent the performance of prediction models, we implemented two commonly used demand prediction models to compare the empirical prediction accuracy with the calculated entropy and predictability. Furthermore, we explored how city- and system-specific temporally-constant features would impact entropy and predictability to inform estimating these measures when historical demand data are unavailable. Our results show that entropy of demands across stations is polarized as some stations exhibit high uncertainty (a low entropy of 0.65) and others have almost no check-out demand uncertainty (a high entropy of around 1.0). We also validated that the entropy and predictability are a priori model-free indicators for prediction error, given a sequence of bike usage demands. Lastly, we identified that key factors contributing to station-level entropy and predictability include per capita income, spatial eccentricity, and the number of parking lots near the station. Findings from this study provide more fundamental understanding of BSS demand prediction, which can help decision makers and system operators anticipate diverse station-level prediction errors from their prediction models both for existing stations and for new ones.

关键词： bike share systems     demand prediction     prediction errors     machine learning     entropy    

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标题 作者 时间 类型 操作

DSM in an area consisting of residential, commercial and industrial load in smart grid

Balasubramaniyan SARAVANAN

期刊论文

Smart residential energy management system for demand response in buildings with energy storage devices

S. L. ARUN, M. P. SELVAN

期刊论文

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

期刊论文

Optimal dynamic emergency reserve activation using spinning, hydro and demand-side reserves

S. Surender REDDY,P. R. BIJWE,A. R. ABHYANKAR

期刊论文

An overview of selected topics in smart grids

S. Hari Charan CHERUKURI,Balasubramaniyan SARAVANAN

期刊论文

基于广域低功耗网络的能源物联网

宋永华,林今,唐明,董树锋

期刊论文

Demand response based congestion management in a mix of pool and bilateral electricity market model

Ashwani KUMAR, Charan SEKHAR

期刊论文

设计结构矩阵在复杂产品协同设计过程的应用

徐路宁,张和明,张永康

期刊论文

协同设计中基于DSM过程重构的研究

徐路宁,张和明,张永康

期刊论文

具有智能外围的智能电网——能源互联网架构

Felix F. Wu,Pravin P. Varaiya,Ron S. Y. Hui

期刊论文

Using balance of seasonal herbage supply and demand to inform sustainable grassland management on the

Xinquan ZHAO, Liang ZHAO, Qi LI, Huai CHEN, Huakun ZHOU, Shixiao XU, Quanmin DONG, Gaolin WU, Yixin HE

期刊论文

需求侧智慧能源系统关键技术分析

王成山, 王丹, 李立浧, 贾宏杰, 王伟亮

期刊论文

Performance analysis of series/parallel and dual side LCC compensation topologies of inductive power

P. Srinivasa Rao NAYAK, Dharavath KISHAN

期刊论文

Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam) side

SHI Huangying, CHEN Wenjuan, ZHANG Liming

期刊论文

Understanding the demand predictability of bike share systems: A station-level analysis

期刊论文