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Tracking the carbon footprint of global generative artificial intelligence

Innovation 2025年第5期6卷 100866页

作者： Ding, Zhaohao Wang, Jianxiao Song, Yiyang Zheng, Xiaokang He, Guannan Chen, Xiupeng Zhang, Tiance Lee, Wei-Jen Song, Jie State Key Lab of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing102206 China National Engineering Laboratory for Big Data Analysis and Applications Peking University Beijing100871 China Department of Electrical and Electronic Engineering University of Hong Kong Hong Kong999077 China Department of Industrial Engineering and Management College of Engineering Peking University Beijing100871 China Jan C. Willems Center for Systems and Control University of Groningen Groningen9700AB Netherlands Energy Systems Research Center University of Texas at Arlington ArlingtonTX76019 United States

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Crowd evacuation simulation in multi-agent based virtual environment

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2012 International Conference on Cybernetics and Informatics, ICCI 2012

作者： Cai, Linqin Zhang, Zhenhua Pan, Yuyou Wang, Na Research Center on Complex System Analysis and Control Chongqing University of Posts and Telecommunications Chongqing 400065 China

ISBN: (纸本)9781461438717

To explore crowd behaviors in coalmine emergency situations, a crowd evacuation simulation model was presented, which aims at the high-level decision-making skills and wayfinding algorithm to explore the leadership in underground emergency evacuation. In proposed evacuation model, leaders' and followers' behaviors were constructed according to their different roles and internal mental states. Leaders can explore coalmine environment for new paths using the proposed wayfinding algorithm to help others. The simulating results of underground fire evacuation case show the proposed approach is effective to create believable crowd behaviors in virtual coalmine. © 2013 Springer Science+Business Media.

关键词： Virtual reality

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Digit-Module Decoupling Platform Architecture for Safety Automation Equipment 8

Digit-Module Decoupling Platform Architecture for Safety Aut...

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8th Asia Conference on power and Electrical Engineering, ACPEE 2023

作者： Chen, Xinghua Chen, Jinchang Yu, Hao Ning, Yuanyuan Huang, Lixian Power Dispatching and Control Center of Guangdong Power Grid System Analysis Department Guangzhou China Jiangsu Huaruitai Technology Co. Ltd. Research and Development Department Nanjing China

ISBN: (纸本)9798350345520

The existing safety automation equipment are designed to perform in an integrated and centralized way, with the strategy of one device corresponding to one function, and with strong coupling inside the equipment, which brings the problems of repeatability and complexity in management, increases the management workload, and is difficult to standardize the management;Therefore, it is necessary to design the platform architecture for the safety automation equipment from top to bottom, adopt new rapid link technology and establish common standard communication transmission protocol to standardize the consistency of data transmission;to isolate the collection module and the digital part in terms of hardware part to achieve hardware decoupling;and to divide the basic strategy logic and advanced strategy logic of functional strategy in terms of digital part, to adopt independent hardware intelligent plug-in for special strategy software, form the minimum basic function Amass Unit, set up the data center of equipment, adopt virtual agent mechanism, so as to achieve software decoupling, and form the digit-module decoupling platform architecture of "high integration and loose coupling"for safety automation equipment, which will provide the key technical basis for the standardized management of safety automation equipment. © 2023 IEEE.

关键词： Automation

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research and Application of Communication Security in Security and Stability control system of power Grid 7

Research and Application of Communication Security in Securi...

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7th Asia Conference on power and Electrical Engineering, ACPEE 2022

作者： Chen, Xinghua Huang, Lixian Zheng, Dan Chen, Jinchang Li, Xinchao Power Dispatching and Control Center of Guangdong Power Grid System Analysis Department Guangzhou China Jiangsu Huaruitai Technology Co. Ltd. Research and Development Dep Artment Nanjing China

ISBN: (纸本)9781665418195

Plaintext transmission is the major way of communication in the existing security and stability control (SSC) system of power grid. Such type of communication is easy to be invaded, camouflaged and hijacked by a third party, leading to a serious threat to the safe and stable operation of power system. Focusing on the communication security in SSC system, the authors use asymmetric encryption algorithm to encrypt communication messages, to generate random numbers through random noise of electrical quantities, and then use them to generate key pairs needed for encryption, at the same time put forward a set of key management mechanism for engineering application. In addition, the field engineering test is performed to verify that the proposed encryption method and management mechanism can effectively improve the communication in SSC system while ensuring the high-speed and reliable communication. © 2022 IEEE.

关键词： Cryptography

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Crowd Evacuation Simulation in Multi-Agent Based Virtual Environment

Crowd Evacuation Simulation in Multi-Agent Based Virtual Env...

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2012年控制与信息国际会议

作者： Linqin Cai Zhenhua Zhang Yuyou Pan Na Wang Research Center on Complex System Analysis and Control Chongqing University of Posts and Telecommunications

To explore crowd behaviors in coalmine emergency situations, a crowd evacuation simulation model was presented, which aims at the high-level decisionmaking skills and wayfinding algorithm to explore the leadership in underground emergency evacuation. In proposed evacuation model, leaders' and followers' behaviors were constructed according to their different roles and internal mental states. Leaders can explore coalmine environment for new paths using the proposed wayfinding algorithm to help others. The simulating results of underground fire evacuation case show the proposed approach is effective to create believable crowd behaviors in virtual coalmine.

关键词： Crowd evacuation · Leadership · Virtual environment · Wayfinding

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The Secondary Circuit Insulation online Monitoring system based on Distributed Current Sampling 4

The Secondary Circuit Insulation online Monitoring System ba...

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4th International Conference on New Energy and power Engineering, ICNEPE 2024

作者： Shi, Hengchu Chen, Xiaofan Li, Yinyin You, Hao Xu, Shoudong Liang, Yong Yunnan Electric Power Dispatching and Control Center China Southern Power Grid Kunming China Scientific Research Institute of Yunnan Power Grid System Analysis Department Kunming China Beijing Jiaotong University School of Computer Science and Technology Beijing China

ISBN: (纸本)9798331516086

The secondary system is very important for the reliable power supply and safe production of the power system. It includes secondary equipment and secondary circuits. The connection status of the secondary circuits will directly affect the correct operation of protection and automation devices. To solve these devices misoperation and refuse to operate problems caused by the multipoint grounding of PT and CT secondary circuits in substations, this paper proposes an online monitoring system for the insulation status of secondary circuits based on distributed zero sequence current sampling method. This system could greatly reduce the workload of maintenance on the secondary circuits, improves operation efficiency, and ensures the reliable operation of the secondary circuit in substations. © 2024 IEEE.

关键词： CT Distributed sampling Insulation online monitoring PT Secondary circuit zero sequence current

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Emissions reduction potential and feasibility of vehicle-to-grid for Beijing’s future electric vehicles

Cell Reports Physical Science

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Cell Reports Physical Science 2025年

作者： Jiaxin Xu Jiahui Chen Hongyi Wei Yinan Zhao Bowen Tian Yifan Wen Haiyang Jiang Ning Zhang Shaojun Zhang Ye Wu School of Environment Tsinghua University Beijing 100084 China Center for Sustainable Systems School for Environment and Sustainability University of Michigan Ann Arbor MI 48109 USA School of Electrical and Power Engineering Power System Research Institute Tsinghua University Beijing 100084 China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084 China Beijing Laboratory of Environmental Frontier Technologies School of Environment Tsinghua University Beijing 100084 China State Key Laboratory of Regional Environment and Sustainability Tsinghua University Beijing 100084 China

Electric vehicles (EVs) offer significant potential to reduce greenhouse gas (GHG) emissions from road transport. However, nighttime charging increases peak demand and thermal power reliance. This study evaluates vehicle-to-grid (V2G) as a solution by integrating GPS-based EV travel data with hourly grid modeling for 2 million EVs in Beijing. Results show V2G boosts renewable energy use in charging to 66%, up from under 4% in uncoordinated charging. V2G cuts vehicle uncoordinated charging emissions by 20.6% and reduces the grid’s GHG footprint by replacing thermal power with discharging electricity. Commuter vehicles and the summer months offer the highest V2G emissions reduction potential. The study finds battery degradation manageable and highlights synergies between V2G, renewable capacity expansion, and economic incentives, while emphasizing the need for robust infrastructure and local grid networks to support large-scale EV adoption. This approach therefore offers a promising pathway to accelerate sustainable energy solutions amid increasing vehicle electrification and renewable integration.

关键词： electric vehicles vehicle to grid V2G GHG emissions travel pattern grid optimization

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Fuzzy emotion modeling for human behavior simulation in stressful situation

International Journal of Digital Content Technology and its ...

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International Journal of Digital Content Technology and its Applications 2012年第7期6卷 312-320页

作者： Cai, Linqin Zhang, Zhenhua Pan, Yuyou Xiong X., Juan Key Laboratory of Network control and Intelligent Instrument Chongqing University of Posts and Telecommunications Ministry of Education Chongqing 400065 China Research Center on Complex System Analysis and Control Chongqing University of Posts and Telecommunications Chongqing 400065 China

Emotion modeling is a vital part of human behavior simulation in stressful situation. Based on OCC appraisal theories, a fuzzy emotion model was proposed to simulate mine worker's emotional behavior response to underground hazardous events. Using fuzzy inference process, the proposed emotion model evaluates perceived event's impact on goal attainment and goal importance to generate emotion states for virtual miners. Moreover, mine worker's personality straits were taken into account in the intensity threshold of emotions, emotion's decay, and motivation update process according to OCEAN personality scales. And then, virtual miner's behaviors were implemented based on current motivation needs and emotion states. Finally, a hazards spotting case was reconstructed to validate the proposed model. Simulated results show virtual miner's fuzzy emotion model can assist in constructing more believable virtual coalmine environment, which helps train miner's decision-making ability when faced with occasional or emergency situations in underground coalmine.

关键词： Motivation

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Multi-agent based simulation for underground safety accidents

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Journal of Convergence Information Technology 2011年第11期6卷 309-316页

作者： Cai, Linqin Pan, Yuyou Cen, Ming Yu, Jimin Key Laboratory of Network control and Intelligent Instrument Chongqing University of Posts and Telecommunications Ministry of Education Chongqing 400065 China Research Center on Complex System Analysis and Control Chongqing University of Posts and Telecommunications Chongqing 400065 China

Traditional experiments with human subjects for underground safety accidents are almost impossible because of safety and ethical issues. Based on Multi-agent technology, virtual mine architecture was presented to simulate underground safety accidents. In proposed multi-agent framework, multiple agents cooperate with each other through synchronization and message passing mechanisms to reveal the complex interactive characteristics of human-machine-environment related factors resulting in underground safety accidents. Furthermore, the design and implementation of virtual miner agent model was emphasized. Combined with internal attributes, virtual miner's behavior is constructed by a set of parameterized basic actions and controlled by personalized action selection mechanism. The simulating results on typical accidents of propdrawing operation in stope face show the proposed approaches are effective to reconstruct accident process in virtual mine for assisting underground safety accident analysis and prevention.

关键词： Virtual reality

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Digit-Module Decoupling Platform Architecture for Safety Automation Equipment

Digit-Module Decoupling Platform Architecture for Safety Aut...

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power and Electrical Engineering (ACPEE), 5th Asia Conference on

作者： Xinghua Chen Jinchang Chen Hao Yu Yuanyuan Ning Lixian Huang System Analysis Department Power Dispatching and Control Center of Guangdong Power Grid Guangzhou Research and Development Department Jiangsu Huaruitai Technology Co. Ltd. Nanjing

The existing safety automation equipment are designed to perform in an integrated and centralized way, with the strategy of one device corresponding to one function, and with strong coupling inside the equipment, which brings the problems of repeatability and complexity in management, increases the management workload, and is difficult to standardize the management; Therefore, it is necessary to design the platform architecture for the safety automation equipment from top to bottom, adopt new rapid link technology and establish common standard communication transmission protocol to standardize the consistency of data transmission; to isolate the collection module and the digital part in terms of hardware part to achieve hardware decoupling; and to divide the basic strategy logic and advanced strategy logic of functional strategy in terms of digital part, to adopt independent hardware intelligent plug-in for special strategy software, form the minimum basic function Amass Unit, set up the data center of equipment, adopt virtual agent mechanism, so as to achieve software decoupling, and form the digit-module decoupling platform architecture of "high integration and loose coupling" for safety automation equipment, which will provide the key technical basis for the standardized management of safety automation equipment.

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