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NOVEL AIRCRAFT ELECTRICAL POWER DISTRIBUTION SYSTEM BASED ON DISTRIBUTED COMPUTER 被引量:3
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作者 杨善水 付大丰 严仰光 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2001年第2期224-228,共5页
As a matured technique used in many fields,the distributed computer system is still a new management method for the aeronautical electrical power distribution system in our country. In this paper, a novel aircraft ele... As a matured technique used in many fields,the distributed computer system is still a new management method for the aeronautical electrical power distribution system in our country. In this paper, a novel aircraft electrical power distribution system based on the distributed computer system is proposed. The principles, features and structure of the aircraft electrical power distribution system and the distributed computer system named electrical load management system (ELMS) are studied. The ELMS composed of four electrical load management centers (ELMCs) and two power source processors (PSPs) operates in the 1553B buses. Principles of the ELMCs and the PSPs are introduced. With the application of the distributed computer system, the aircraft electrical power distribution system is simple, adaptable and flexible. 展开更多
关键词 aircraft electrical power supply system aircraft electrical power distribution system distributed computer system 1553B buses electrical load management system
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Intelligent Vehicle Electrical Power Supply System with Central Coordinated Protection 被引量:2
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作者 YANG Diange KONG Weiwei +1 位作者 LI Bing LIAN Xiaomin 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2016年第4期781-791,共11页
The current research of vehicle electrical power supply system mainly focuses on electric vehicles(EV) and hybrid electric vehicles(HEV).The vehicle electrical power supply system used in traditional fuel vehicles... The current research of vehicle electrical power supply system mainly focuses on electric vehicles(EV) and hybrid electric vehicles(HEV).The vehicle electrical power supply system used in traditional fuel vehicles is rather simple and imperfect;electrical/electronic devices(EEDs) applied in vehicles are usually directly connected with the vehicle's battery.With increasing numbers of EEDs being applied in traditional fuel vehicles,vehicle electrical power supply systems should be optimized and improved so that they can work more safely and more effectively.In this paper,a new vehicle electrical power supply system for traditional fuel vehicles,which accounts for all electrical/electronic devices and complex work conditions,is proposed based on a smart electrical/electronic device(SEED) system.Working as an independent intelligent electrical power supply network,the proposed system is isolated from the electrical control module and communication network,and access to the vehicle system is made through a bus interface.This results in a clean controller power supply with no electromagnetic interference.A new practical battery state of charge(So C) estimation method is also proposed to achieve more accurate So C estimation for lead-acid batteries in traditional fuel vehicles so that the intelligent power system can monitor the status of the battery for an over-current state in each power channel.Optimized protection methods are also used to ensure power supply safety.Experiments and tests on a traditional fuel vehicle are performed,and the results reveal that the battery So C is calculated quickly and sufficiently accurately for battery over-discharge protection.Over-current protection is achieved,and the entire vehicle's power utilization is optimized.For traditional fuel vehicles,the proposed vehicle electrical power supply system is comprehensive and has a unified system architecture,enhancing system reliability and security. 展开更多
关键词 vehicle electrical power supply battery management vehicle electrical system traditional fuel vehicle
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DEVELOPMENT OF THE ENERGY MANAGEMENT STRATEGY FOR PARALLEL HYBRID ELECTRIC URBAN BUSES 被引量:7
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作者 HUANG Yuanjun YIN Chengliang ZHANG Jianwu 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2008年第4期44-50,共7页
A novel parallel hybrid electrical urban bus (PHEUB) configuration consisting of an extra one-way clutch and an automatic mechanical transmission (AMT) is taken as the study subject. An energy management strategy ... A novel parallel hybrid electrical urban bus (PHEUB) configuration consisting of an extra one-way clutch and an automatic mechanical transmission (AMT) is taken as the study subject. An energy management strategy combining a logic threshold approach and an instantaneous optimization algorithm is proposed for the investigated PHEUB. The objective of the energy management strategy is to achieve acceptable vehicle performance and drivability requirements while simultaneously maximizing the engine fuel consumption and maintaining the battery state of charge in its operation range at all times. Under the environment of Matlab/Simulink, a computer simulation model for the PHEUB is constructed by using the model building method combining theoretical analysis and bench test data. Simulation and experiment results for China Typical Bus Driving Schedule at Urban District (CTBDS_UD) are obtained, and the results indicate that the proposed control strategy not only controls the hybrid system efficiently but also improves the fuel economy significantly. 展开更多
关键词 Parallel hybrid electric urban bus (PHEUB) Energy management strategy (EMS) Instantaneous optimization
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A Vehicle Routing Problem Based on Intelligent Batteries Transfer Management for the EV Network 被引量:2
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作者 XIA Yamei CHENG Bo 《China Communications》 SCIE CSCD 2014年第5期160-169,共10页
Batteries transfer management is one important aspect in electric vehicle(EV)network's intelligent operation management system.Batteries transfer is a special and much more complex VRP(Vehicle Routing Problem) whi... Batteries transfer management is one important aspect in electric vehicle(EV)network's intelligent operation management system.Batteries transfer is a special and much more complex VRP(Vehicle Routing Problem) which takes the multiple constraints such as dynamic multi-depots,time windows,simultaneous pickups and deliveries,distance minimization,etc.into account.We call it VRPEVB(VRP with EV Batteries).This paper,based on the intelligent management model of EV's battery power,puts forward a battery transfer algorithm for the EV network which considers the traffic congestion that changes dynamically and uses improved Ant Colony Optimization.By setting a reasonable tabv range,special update rules of the pheromone and path list memory functions,the algorithm can have a better convergence,and its feasibility is proved by the experiment in an EV's demonstration operation system. 展开更多
关键词 VRP battery power management ant colony algorithm electric vehicle network
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Combinatorial Optimization for Electric Vehicles Management 被引量:2
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作者 Nora Touati-Motmgla Vincent Jost 《Journal of Energy and Power Engineering》 2012年第5期738-743,共6页
Growing concerns about environmental quality of cities are calling for sustainable road transportation technologies. EV (electric vehicles), for public and private transport, can contribute significantly to the lowe... Growing concerns about environmental quality of cities are calling for sustainable road transportation technologies. EV (electric vehicles), for public and private transport, can contribute significantly to the lowering of the current pollution levels. However, the EV use is currently facing several weaknesses among which are: limited driving range, high cost and overall limited efficiency. Electric vehicles management is a relatively recent problem; its purpose is to expedite the establishment of a costumer convenient, cost-effective, EV infrastructure. Inspire the relevance of the problem, a few small research communities in this field work on some of its aspects. In this work, some important issues of this problem are discussed and the contribution of combinatorial optimization tools for solving some challenging subproblems is studied. 展开更多
关键词 Electric vehicles management routing problem facility location vehicles redistribution.
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Crowd Energy Management: New Paradigm for Electricity Market
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作者 Mario Gstrein Stephanie Teufel 《Journal of Electronic Science and Technology》 CAS CSCD 2015年第3期195-205,共11页
The traditionally centralized approach of electricity networks is progressively undergoing a shift towards a decentralized, distributed structure. The local and crowd-based principle is transforming the existing suppl... The traditionally centralized approach of electricity networks is progressively undergoing a shift towards a decentralized, distributed structure. The local and crowd-based principle is transforming the existing supply chain and related activities into a value network (VN). Previous researches on crowd value network concepts focus on the activities of infrastructure and load management and neglect activities that generate collaboration. Collaboration with and within crowds particularly demands a different mindset and management of sharing values, information, benefit, and risks. Furthermore, these concepts must integrate technical, processual, and social aspects. Thus, this article proposes a holistic framework of electricity VN management for crowd energy. It redefines VN activities for infrastructure and load management while appending VN activities for social electricity handling. Additionally, the framework illustrates the interactions among these three elements and concludes with an adaption cycle for the crowd value network. 展开更多
关键词 Crowd distribution systems value electricity management. energy decentralized network collaboration
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Reliability Management of Electric Power Industry in China
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作者 Huang Youru(China Electric Reliability Management Center) 《Electricity》 1999年第2期4-7,共4页
关键词 In Reliability management of Electric Power Industry in China
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Application of Reliability Management in Electric Power Industry
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作者 Huang Youru(China Electric Reliability Management Center) 《Electricity》 1999年第2期8-15,共8页
关键词 Application of Reliability management in Electric Power Industry
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Distributed Model Predictive Load Frequency Control of Multi-area Power System with DFIGs 被引量:17
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作者 Yi Zhang Xiangjie Liu Bin Qu 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2017年第1期125-135,共11页
Reliable load frequency control LFC is crucial to the operation and design of modern electric power systems. Considering the LFC problem of a four-Area interconnected power system with wind turbines, this paper presen... Reliable load frequency control LFC is crucial to the operation and design of modern electric power systems. Considering the LFC problem of a four-Area interconnected power system with wind turbines, this paper presents a distributed model predictive control DMPC based on coordination scheme. The proposed algorithm solves a series of local optimization problems to minimize a performance objective for each control area. The generation rate constraints GRCs, load disturbance changes, and the wind speed constraints are considered. Furthermore, the DMPC algorithm may reduce the impact of the randomness and intermittence of wind turbine effectively. A performance comparison between the proposed controller with and without the participation of the wind turbines is carried out. Analysis and simulation results show possible improvements on closed-loop performance, and computational burden with the physical constraints. © 2014 Chinese Association of Automation. 展开更多
关键词 Asynchronous generators Electric control equipment Electric fault currents Electric frequency control Electric load management Electric power systems Model predictive control Optimization Press load control WIND Wind turbines
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Costs and Benefits of Smart Grids on Liberalized Markets 被引量:3
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作者 Marek Adamec Pavel Pavlatka Oldrich Stary 《Journal of Electronic Science and Technology》 CAS 2012年第1期22-28,共7页
The discussion about smart grid (SG) implementation is mostly focused on pilot projects. These projects are necessary for mapping of particular technical devices of advanced metering management (AMM) which is need... The discussion about smart grid (SG) implementation is mostly focused on pilot projects. These projects are necessary for mapping of particular technical devices of advanced metering management (AMM) which is needed for successful SG and whole functional SG system operation. According to our opinion, for the next step of SG implementation, the participation of effective market design would be quite necessary. In other words, pilot project which is operated regardless to the market conditions and special SG tariff is incomplete and could be irrelevant for further evaluation of feasibility. With regard to above mentioned facts, the detailed cost-benefit-analysis (CBA) is needed to establish the correct methodology for evaluation of SG implementation effectiveness. Related aspects are mentioned and discussed in this paper, in which the particular cost and benefits as well as feedback that occurs as the reaction on implementation are summarized and quantified. 展开更多
关键词 Advanced metering management electricity market REGULATION smart grid system approach.
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Equalization Charging and Protection System for Electric Vehicle
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作者 李红林 孙逢春 +1 位作者 张承宁 邵桂辛 《Journal of Beijing Institute of Technology》 EI CAS 2004年第S1期73-77,共5页
A system is developed to improve the series battery packs uniformities and charging protection and the implementation of battery equalization charging and protection system is also introduced. The functions of equaliz... A system is developed to improve the series battery packs uniformities and charging protection and the implementation of battery equalization charging and protection system is also introduced. The functions of equalization charging and overcharging protection are analyzed and the control model of series battery packs equalization charging is setup. The diverting-current and feedback bus voltage are measured during the series Li-ion battery packs equalization charging experiment. The field operation on Electric luxury transit bus BFC6100EV shows that the system betters the battery series charging uniformities and overcharging protection, improves the battery performance and extends the battery life. 展开更多
关键词 equalization charging: Li-ion batten series: battery series management: electric vehicle
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Revised Fault Free Analysis Method for Reliability Evaluation of Smart Grids
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作者 宋国鹏 雷洪涛 郭波 《Journal of Donghua University(English Edition)》 EI CAS 2014年第6期870-874,共5页
Smart grid was proposed as a practical form of future power distribution system. Evaluating the reliability of smart grids was of great importance and significance. A revised fault tree model was proposed to distingui... Smart grid was proposed as a practical form of future power distribution system. Evaluating the reliability of smart grids was of great importance and significance. A revised fault tree model was proposed to distinguish and separate grid-connected operation mode and islanded operation mode of smart grids,focusing on the perspective of the consumers. A hierarchical Monte Carlo simulation method for reliability evaluation was also proposed based on the proposed fault tree model. A case of reliability evaluation for the future renewable electric energy delivery and management( FREEDM) system was carried out and analyzed. The proposed methods can be applicable to other forms of smart grids. 展开更多
关键词 smart grid fault tree analysis(FTA) Monte Carlo simulation future renewable electric energy delivery and management(FREEDM) system
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An approach to Iocational marginal price based zonal congestion management in deregulated electricity market 被引量:2
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作者 Md SARWAR Anwar Shahzad SIDDIQUI 《Frontiers in Energy》 SCIE CSCD 2016年第2期240-248,共9页
Congestion of transmission line is a vital issue and its management pose a technical challenge in power system deregulation. Congestion occurs in deregulated electricity market when transmission capacity is not suffic... Congestion of transmission line is a vital issue and its management pose a technical challenge in power system deregulation. Congestion occurs in deregulated electricity market when transmission capacity is not sufficient to simultaneously accommodate all constraints of power transmission through a line. Therefore, to manage congestion, a locational marginal price (LMP) based zonal congestion management approach in a deregulated elec- tricity market has been proposed in this paper. As LMP is an economic indicator and its difference between two buses across a transmission line provides the measure of the degree of congestion, therefore, it is efficiently and reliably used in deregulated electricity market for conges- tion management. This paper utilizes the difference of LMP across a transmission line to categorize various congestion zones in the system. After the identification of congestion zones, distributed generation is optimally placed in most congestion sensitive zones using LMP difference in order to manage congestion. The performance of the proposed methodology has been tested on the IEEE 14-bus system and IEEE 57-bus system. 展开更多
关键词 locational marginal price (LMP) distributed generation pool market deregulated electricity market congestion management
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Fuzzy energy management strategy for parallel HEV based on pigeon-inspired optimization algorithm 被引量:14
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作者 PEI JiaZheng SU YiXin ZHANG DanHong 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2017年第3期425-433,共9页
Improvements in fuel consumption and emissions of hybrid electric vehicle(HEV)heavily depend upon an efficient energy management strategy(EMS).This paper presents an optimizing fuzzy control strategy of parallel hybri... Improvements in fuel consumption and emissions of hybrid electric vehicle(HEV)heavily depend upon an efficient energy management strategy(EMS).This paper presents an optimizing fuzzy control strategy of parallel hybrid electric vehicle em- 展开更多
关键词 parallel hybrid electric vehicles(parallel HEV) energy management strategy(EMS) fuzzy controller pigeon-inspired optimization(PIO) algorithm quantum evolution chaotic search
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Energy Management Strategy for Hybrid Electric Vehicle Based on System Efficiency and Battery Life Optimization
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作者 YANG Yang SU Ling +2 位作者 QIN Datong GONG Hui ZENG Jianfeng 《Wuhan University Journal of Natural Sciences》 CAS 2014年第3期269-276,共8页
A novel method to calculate fuel-electric conversion factor for full hybrid electric vehicle(HEV)equipped with continuously variable transmission(CVT)is proposed.Based on consideration of the efficiency of pivotal... A novel method to calculate fuel-electric conversion factor for full hybrid electric vehicle(HEV)equipped with continuously variable transmission(CVT)is proposed.Based on consideration of the efficiency of pivotal components,electric motor,system efficiency optimization models are developed.According to the target of instantaneous optimization of system efficiency,operating ranges of each mode of power-train are determined,and the corresponding energy management strategies are established.The simulation results demonstrate that the energy management strategy proposed can substantially improve the vehicle fuel economy,and keep battery state of charge(SOC)change in a reasonable variation range. 展开更多
关键词 hybrid electric vehicle energy management strategy efficiency optimization battery state of charge fuel-electric conversion factor
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An updated review and conceptual model for optimizing WEEE management in China from a life cycle perspective
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作者 Xiaolong Song Jingwei Wang +1 位作者 Jianxin Yang Bin Lu 《Frontiers of Environmental Science & Engineering》 SCIE EI CAS CSCD 2017年第5期21-32,共12页
Waste electrical and electronic equipment (WEEE) is a rapidly growing category of solid waste. China is now facing WEEE problems from both growing domestic generation and illegal imports. Currently, the amount of WE... Waste electrical and electronic equipment (WEEE) is a rapidly growing category of solid waste. China is now facing WEEE problems from both growing domestic generation and illegal imports. Currently, the amount of WEEE formally treated has increased steadily in China. The layout of the formal sector has been basically completed. Meanwhile, by controlling illegal disassembly activities, the informal sector has been gradually transformed to formal one. Beginning with the overview of the WEEE recycling industry in China, this paper first lists the latest progress in WEEE management from such aspects as the new edition of China RollS Directive (Restriction of Hazardous Substances Directive), the updated WEEE Treatment List, the updated WEEE fund standard, the revised National Hazardous Waste List, and a brand-new plan on extended producer responsibility. In so doing, we elucidate the current challenges on WEEE management in detail: the imbalance between fund levies and subsidies, the gap in the supervision scope, the homogenization of recycling industry and the lack of life cycle approaches. Finally, a conceptual framework for integrated management of WEEE is proposed from a life cycle perspective. Overall, the life cycle management of WEEE includes three aspects: developing life cycle information for decision-making, implementing life cycle engineering with life cycle tools, and improving WEEE legislation based on life cycle thinking. By providing specific operating strategies, this life cycle framework should help to optimize WEEE management in developing countries where legislation is imperfect and the recycling system is relatively immature. 展开更多
关键词 Waste electrical and electronic equipment E-wasteLife cycle management China
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Energy cost minimization through optimization of EV, home and workplace battery storage 被引量:3
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作者 ZHONG QianWen BUCKLEY Stephen +1 位作者 VASSALLO Anthony SUN YiZe 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2018年第5期761-773,共13页
Besides grid-to-vehicle(G2 V) and vehicle-to-grid(V2 G) functions, the battery of an electric vehicle(EV) also has the specific feature of mobility. This means that EVs not only have the potential to utilize the stora... Besides grid-to-vehicle(G2 V) and vehicle-to-grid(V2 G) functions, the battery of an electric vehicle(EV) also has the specific feature of mobility. This means that EVs not only have the potential to utilize the storage of cheap electricity for use in high energy price periods, but can also transfer energy from one place to another place. Based on these special features of an EV battery, a new EV energy scheduling method has been developed and is described in this article. The approach is aimed at optimizing the utilization EV energy for EVs that are regularly used in multiple places. The objective is to minimize electricity costs from multiple meter points. This work applies real data in order to analyze the effectiveness of the method. The results show that by applying the control strategy presented in this paper at locations where the EVs are parked, the electricity cost can be reduced without shifting the demand and lowering customer's satisfaction. The effects of PV size and number of EVs on our model are also analyzed in this paper. This model has the potential to be used by energy system designers as a new perspective to determine optimal sizes of generators or storage devices in energy systems. 展开更多
关键词 electric vehicle electric vehicle(EV) optimization energy management storage battery vehicle to grid(V2G)
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Guest editorial:special section on managing electricity demand
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作者 Clark W.GELLINGS Fangxing LI 《Journal of Modern Power Systems and Clean Energy》 SCIE EI 2017年第1期3-4,共2页
The interest in managing electricity demand surfaced in earnest during the 1970s as economic,political,social,technological,and resource supply factors combined to change the electricity sectors’operating environment... The interest in managing electricity demand surfaced in earnest during the 1970s as economic,political,social,technological,and resource supply factors combined to change the electricity sectors’operating environment and its outlook for the future.Ever since then,a successive series of concepts have evolved as an effective way of mitigating these risks including:demand-side management(DSM),demand response(DR),and transactive energy. 展开更多
关键词 Guest editorial:special section on managing electricity demand Clark USA
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