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Electrocaloric cooling technologies for a sustainable world 实现可持续发展的电制冷技术
iEnergy Pub Date : 2023-06-01 DOI: 10.23919/IEN.2023.0012
Xin Chen;Wenyi Zhu;Q. M. Zhang
{"title":"Electrocaloric cooling technologies for a sustainable world","authors":"Xin Chen;Wenyi Zhu;Q. M. Zhang","doi":"10.23919/IEN.2023.0012","DOIUrl":"https://doi.org/10.23919/IEN.2023.0012","url":null,"abstract":"Our societies are highly dependent on reliable cooling for air conditioning (AC) and refrigeration. Currently, modern cooling is supported by a 19\u0000<sup>th</sup>\u0000 century technology: vapor compression cycle (VCC)-based cooling. Refrigerants used in the VCC cooling are strong greenhouse gases and thus are among the leading causes of global warming. The electrocaloric (EC) cooling is attractive as an alternative to the VCC cooling. EC cooling is environmentally benign, compressor-free, highly scalable, and has the potential of achieving higher efficiency than VCC cooling. The active EC materials research since the late 2000s has created several EC materials that exhibit giant electrocaloric effect (ECE) (by direct measurement). These EC materials have enabled the demonstration of EC cooling devices that exhibit temperature lifts of more than 8 K. These EC materials and device research reveals the promise of fer-roelectric materials in generating giant ECE at low electric fields and EC cooling devices achieving high performance. This review highlights these advances and offers perspectives of the EC cooling technologies.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 2","pages":"100-108"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10185633/10185663.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50319969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Revisit power system dispatch: Concepts, models, and solutions 重温电力系统调度：概念、模型和解决方案
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0010
Zhifang Yang;Pei Yong;Mingxu Xiang
{"title":"Revisit power system dispatch: Concepts, models, and solutions","authors":"Zhifang Yang;Pei Yong;Mingxu Xiang","doi":"10.23919/IEN.2023.0010","DOIUrl":"https://doi.org/10.23919/IEN.2023.0010","url":null,"abstract":"Power system dispatch is a general concept with a wide range of applications. It is a special category of optimization problems that determine the operation pattern of the power system, resulting in a huge influence on the power system security, efficiency, and economics. In this paper, the power system dispatch problem is revisited from the basis. This paper provides a categorization of the dispatch problem, especially with an emphasis on industrial applications. Then, this paper presents a detailed review of the dispatch models. The common formulations of the dispatch problem are provided. Finally, this paper discusses the solutions of the dispatch problem and lists the major challenges.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"43-62"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144287.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
New technologies for power and energy systems toward carbon neutrality 电力和能源系统实现碳中和的新技术
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0000
{"title":"New technologies for power and energy systems toward carbon neutrality","authors":"","doi":"10.23919/IEN.2023.0000","DOIUrl":"https://doi.org/10.23919/IEN.2023.0000","url":null,"abstract":"The fifth issue of iEnergy has arrived and contains nine published papers, including three news and views, one highlight, one letter, two review articles, and two original research articles.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144276.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
China's carbon neutrality faces the challenges of “three highs and one short”, and requires “five carbon implementations” to achieve dual carbon goals 中国碳中和面临“三高一短”挑战，实现双碳目标需“五碳落实”
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0003
Kebin He
{"title":"China's carbon neutrality faces the challenges of “three highs and one short”, and requires “five carbon implementations” to achieve dual carbon goals","authors":"Kebin He","doi":"10.23919/IEN.2023.0003","DOIUrl":"https://doi.org/10.23919/IEN.2023.0003","url":null,"abstract":"Dual carbon goals are closely related to high-quality green development. The government has required that dual carbon goals be included in ecological civilization construction's overall layout. Achieving carbon peak and carbon neutrality is a broad and profound systemic economic and social transformation. China is facing the “three highs and one short” challenges and requires the “five carbon implementations” to achieve dual carbon goals. The core of dual carbon goals is a new round of industrial competition, and the world is laying out dual carbon goals as the starting point and competing for a new round of technological high ground.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"2-3"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144273.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Eco-friendly gas insulating medium for next-generation SF6-free equipment 用于下一代无SF6设备的环保气体绝缘介质
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0001
Yi Li;Shuangshuang Tian;Linlin Zhong;Geng Chen;Song Xiao;Yann Cressault;Yuwei Fu;Yu Zheng;Christophe Preve;Zhaolun Cui;Yin Zhang;Fanchao Ye;Daniel Piccoz;Gang Wang;Yalong Li;Youping Tu;Wenjun Zhou;Ju Tang;Xiaoxing Zhang
{"title":"Eco-friendly gas insulating medium for next-generation SF6-free equipment","authors":"Yi Li;Shuangshuang Tian;Linlin Zhong;Geng Chen;Song Xiao;Yann Cressault;Yuwei Fu;Yu Zheng;Christophe Preve;Zhaolun Cui;Yin Zhang;Fanchao Ye;Daniel Piccoz;Gang Wang;Yalong Li;Youping Tu;Wenjun Zhou;Ju Tang;Xiaoxing Zhang","doi":"10.23919/IEN.2023.0001","DOIUrl":"https://doi.org/10.23919/IEN.2023.0001","url":null,"abstract":"Gas-insulated equipment (GIE) that utilizes the most potent greenhouse gas sulfur hexafluoride (SF\u0000<inf>6</inf>\u0000) as insulation and arc-quenching medium has been widely used in the power industry. Seeking eco-friendly insulating gas with advanced performance for next-generation SF\u0000<inf>6</inf>\u0000-free GIE is significant for the “net-zero” goal and sustainable development. In this paper, the utilization, emission, and reduction policies of SF\u0000<inf>6</inf>\u0000 around the world were summarized first. Then, we systematically reviewed the latest progress in comprehensive performance evaluation of eco-friendly insulating gas in terms of molecular design, dielectric insulation, arc-quenching, stability and decomposition, materials compatibility, biosafety, etc. Further, the representative applications of eco-friendly insulating gas in medium-voltage, high-voltage GIE as well as relevant maintenance-related technologies were highlighted. Accordingly, the existing challenges and future perspectives were proposed, presenting a roadmap to hopefully steer the development of eco-friendly insulating gas and GIE.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"14-42"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144278.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction analysis and enhanced design of grid-forming control with hybrid synchronization and virtual admittance loops 具有混合同步和虚拟导纳环的网格形成控制的交互分析和增强设计
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0005
Hong Gong;Xiongfei Wang
{"title":"Interaction analysis and enhanced design of grid-forming control with hybrid synchronization and virtual admittance loops","authors":"Hong Gong;Xiongfei Wang","doi":"10.23919/IEN.2023.0005","DOIUrl":"https://doi.org/10.23919/IEN.2023.0005","url":null,"abstract":"The hybrid power- and voltage-based synchronization control method has shown potential for enhancing the stability of grid-forming (GFM) inverters. However, its effectiveness may be compromised if other control loops are not properly designed. To address the control-loop interactions, this paper presents a design-oriented analysis method for multiloop-controlled GFM inverters. The method begins by identifying the dominant oscillation modes through modal analysis. The sensitivities of damping ratios to control parameters are then determined for the dominant modes, which allows for characterization of control-loop interactions. A co-design method of GFM control is next developed based on the sensitivity analysis. Lastly, simulations and experimental results are presented to confirm the effectiveness of the method.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"71-84"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144270.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Energy Technology Innovation on the Path towards Carbon Neutrality 碳中和道路上的能源技术创新
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0004
Qi Wang;Chongqing Kang
{"title":"The Energy Technology Innovation on the Path towards Carbon Neutrality","authors":"Qi Wang;Chongqing Kang","doi":"10.23919/IEN.2023.0004","DOIUrl":"https://doi.org/10.23919/IEN.2023.0004","url":null,"abstract":"The Energy Technology Innovation on the Path towards Carbon Neutrality convenes a group of experts, including Nobel laureates, academicians, government officials, and young and middle-aged scholars, to deliberate on the key areas of energy technology innovation on the path towards carbon neutrality. From multiple perspectives and dimensions, the book addresses the challenges that arise in achieving carbon neutrality targets, while exploring the latest developments, ideas, and achievements in cutting-edge technology innovation areas such as zero-carbon transformation of the power system, clean and intelligent transportation, hydrogen energy development and application, and energy digitization. Moreover, it provides valuable insights into the path towards carbon neutrality.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"6-7"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144268.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Secondary control fusion in inverter intensive dynamic microgrids for distribution system resiliency enhancement 逆变器密集型动态微电网二次控制融合增强配电系统弹性
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0011
Yuxi Men;Lizhi Ding;Junhui Zhang;Xiaonan Lu
{"title":"Secondary control fusion in inverter intensive dynamic microgrids for distribution system resiliency enhancement","authors":"Yuxi Men;Lizhi Ding;Junhui Zhang;Xiaonan Lu","doi":"10.23919/IEN.2023.0011","DOIUrl":"https://doi.org/10.23919/IEN.2023.0011","url":null,"abstract":"Microgrids (MGs) dominated by power electronics interface inverters can augment distribution system resiliency. The interactions among neighboring MGs and the requirements for flexible system network reconfiguration motivate the development of dynamic MGs. To improve the distribution system resiliency in the context of dynamic MGs, this paper proposes the concept of functional fusion of secondary control levels across neighboring dynamic MGs with the integration of multiple compensation terms into the secondary controller in each distributed generator (DG). Moreover, two kinds of consensus-based algorithms with the consideration of communication delays are encompassed to calculate the average values of static and dynamic variables and thereby build an effective communications network among DGs in dynamic MGs. Finally, the effectiveness of the proposed secondary controller is validated using a 9-bus test distribution feeder.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"9-13"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144274.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constraints and solutions to power electronics penetrations in power systems 电力系统中电力电子贯穿件的制约因素和解决方案
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0002
Xiaoming Yuan;Wei He
{"title":"Constraints and solutions to power electronics penetrations in power systems","authors":"Xiaoming Yuan;Wei He","doi":"10.23919/IEN.2023.0002","DOIUrl":"https://doi.org/10.23919/IEN.2023.0002","url":null,"abstract":"Power system has recently been undergoing fundamental revolutions especially in the displacement of conventional thermal generations with renewable resources. While balancing of supplies and loads becomes immediate challenge due to uncertainty and fluctuation of the primary resources, power electronics replacing synchronous machines as technology for energy conversions brings essentially more sophisticated impacts to stability and security of power system operations. Potential threatening goes far more beyond the widely recognized problems including shortage of inertia in its conventional frequency response connotation, but relevant to scenario transformation of the overall characteristics of systems dynamics. The situation is getting worsening in China especially to meet the long distance transmission needs deploying conventional high-voltage direct current (HVDC) technologies in increasingly large scale, as well as new HVDC technology for offshore wind transmissions.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"4-5"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144275.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
World's first practical power flow algorithm operating on today's noisy quantum computers 世界上第一个在当今嘈杂的量子计算机上运行的实用功率流算法
iEnergy Pub Date : 2023-03-01 DOI: 10.23919/IEN.2023.0009
Jinliang He
{"title":"World's first practical power flow algorithm operating on today's noisy quantum computers","authors":"Jinliang He","doi":"10.23919/IEN.2023.0009","DOIUrl":"https://doi.org/10.23919/IEN.2023.0009","url":null,"abstract":"Power flow is an indispensable foundation for power system analytics. Under the deep penetration of renewables, modern power system analytics often becomes intractable because it needs to run an enormous amount of power flow analyses to quantify the impact of uncertainties. Unlike classical power flow methods that scale polynomially with the system size, quantum computing enables using logarithmically-scaled number of qubits to solve linear equations in power flow analysis. Thus, quantum power flow (QPF) provides a promising direction to make today's intractable power system analytics tractable. However, a major obstacle to the development of a practical quantum power flow algorithm lies in the fact that today's mainstream quantum computers are still noisy-intermediate-scale quantum (NISQ) devices whose capability is restricted by the limited number of qubits and considerable noises. To bridge this gap, Stony Brook University establishes a variational quantum power flow that allows for practical and noise-resilient power flow analysis on today's NISQ devices.","PeriodicalId":100648,"journal":{"name":"iEnergy","volume":"2 1","pages":"8-8"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9732629/10144267/10144271.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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