Long Jia

ORCID: 0000-0003-3358-3647
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About
Contact & Profiles
Research Areas
  • Electric Vehicles and Infrastructure
  • Advanced Battery Technologies Research
  • Distributed Control Multi-Agent Systems
  • Transportation and Mobility Innovations
  • Advanced Computational Techniques and Applications
  • Smart Grid Energy Management
  • Adaptive Control of Nonlinear Systems
  • Advanced Algorithms and Applications
  • Fault Detection and Control Systems
  • 3D Shape Modeling and Analysis
  • Computer Graphics and Visualization Techniques
  • Human Motion and Animation
  • Advanced Sensor and Control Systems
  • Military Defense Systems Analysis
  • Neurological disorders and treatments
  • UAV Applications and Optimization
  • Evolutionary Game Theory and Cooperation
  • Guidance and Control Systems
  • Mathematical and Theoretical Epidemiology and Ecology Models
  • Recycling and Waste Management Techniques
  • Nonlinear Dynamics and Pattern Formation
  • Advanced Optical Network Technologies
  • Power Systems and Technologies
  • Effects of Vibration on Health
  • Power Line Inspection Robots

Northwestern Polytechnical University
2021-2024

Beijing Electronic Science and Technology Institute
2018

Harbin Institute of Technology
2011-2018

Tsinghua University
2012-2015

Beijing Aerospace Flight Control Center
2014

Federation University
2010-2013

Xinjiang Medical University
2013

University of Utah
1998

The development of electric vehicles cannot be separated from charging infrastructures. At present, the construction vehicle stations faces problems on siting and sizing. This paper introduces optimization process sizing stations, defines variables to represent demand; abstracts structure road network model simulate with graph theory; solves problem Cplex. objective is minimize integrated cost consumers. calculation results, using data Stockholm, Sweden, show that method can effectively...

10.1109/ievc.2012.6183283 article EN IEEE International Electric Vehicle Conference 2012-03-01

In this article, the game-based backstepping control method is proposed for high-order nonlinear multi-agent system with unknown dynamic and input saturation. Reinforcement learning (RL) employed to get saddle point solution of tracking game between each agent reference signal achieving robust control. Specifically, approximate optimal established Hamilton–Jacobi–Isaacs (HJI) equation obtained by policy iteration subsystem, single network adaptive critic (SNAC) architecture used reduce...

10.1109/tnnls.2022.3177461 article EN IEEE Transactions on Neural Networks and Learning Systems 2022-06-03

In this article, an adaptive swarm control within saturated input based on the nonlinear coupling degree is proposed. Swarm a forward study in kinematics and dynamics of system. However, previous work can only manifest whether agents being connected or not, ignoring connection strength. As result, proposed, which more suitable for practical engineering than degree. Based degree, we put novel dynamics. Besides, effects saturation should be considered Therefore, introduce backstepping method...

10.1109/tsmc.2021.3102587 article EN IEEE Transactions on Systems Man and Cybernetics Systems 2021-08-25

This paper explores the potential financial return for using plug-in electric vehicles (PEVs) as a grid resource. There are two methods PEVs to provide ancillary services call interruptible load and vehicle The contract market is introduced first, then method calculate cost benefit of proposed. Additionally, expected profits providing when considering uncertainties driving behaviors both calculated compared. calculation results indicate that participating in frequency regulation higher than...

10.1109/ievc.2012.6183272 article EN IEEE International Electric Vehicle Conference 2012-03-01

The optimal planning of urban electric vehicle (EV) charging facilities gains many attentions as the rapid development EV industry. Slow or regular with piles and fast in stations will be two main patterns for recharging EVs. This paper predicts amount EVs at different penetration rates according to population a city forecasts overall demand based on average daily mileage energy consumption. Then is divided into three types, slow, urgent demands. demands are met by corresponding areas. Fast...

10.1109/powercon.2014.6993928 article EN 2014-10-01

Because of global warming and shortage fossil fuels, much attention has been paid to plug-in electric vehicles (PEVs) worldwide in recent years. With possibly millions PEVs on road the future, it is essential for power network operators, especially distribution implement coordinated PEV charging. In this paper, an optimal charging method proposed maximize profits companies. By introducing voltage constraints, optimization guarantees both security economics operation. To reduce computational...

10.1109/isgteurope.2012.6465844 article EN 2012-10-01

Artificial hearts are a commercially interesting technology which relies heavily on feedback control, particularly with centrifugal pump implementations using magnetic bearings. Several examples of control in these pumps were explored this paper, including parameter estimation for position sensing, observer based motor commutation, the rigid impeller subjected to highly uncertain fluid dynamic forces, and discharge rate regulation (physiological control) achieve objectives (due insufficient...

10.1109/37.736009 article EN IEEE Control Systems 1998-12-01

The term 'green IT' is defined as "Optimal use of Information and Communication Technology (ICT) for managing the environment sustainability enterprise operations throughout their life cycles". Its objective to create a positive impact on through net lowered emissions. heart green information technology (IT) concept 'Environmental Sustainability', its initiatives are multifaceted support enterprises 'business usual model', in low-carbon economy. Many IT have provided short-term financial...

10.1504/ijcnds.2014.057986 article EN International Journal of Communication Networks and Distributed Systems 2013-12-01

Three-phase unbalance may occur in distribution networks with large-scale charging loads of electric vehicles (EVs) plugged in, which significantly threatens the operation power networks. Most coordinated EVs strategies are based on assumption single-phase to neglect three-phase problems. A strategy for considering load balance is proposed. In outer layer proposed strategy, backward/forward sweep flow algorithm used iteratively update node voltages. inner a EV optimal model created and...

10.7500/aeps20150402012 article EN 2015-09-30

The test platform is built based on LabVIEW to Vehicle Control Unit (VCU) and Battery Management System (BMS), their control strategies are tested by the experiments. Using a series of NI hardware products, data acquisition, CAN communication, fault injection unit signal conditioning, in loop simulation system realized. In RT system, real-time vehicle model battery generated Simulink, with real load, environment established. Finally, not only for VCU BMS completed, but also joint debugging...

10.1088/1757-899x/382/5/052033 article EN IOP Conference Series Materials Science and Engineering 2018-07-01

This paper focuses on the On-Line Transaction Processing (OLTP) performance evaluation methods for high fault-tolerant (HPFT) computers. By analyzing transaction features of Bank intermediary business (BIB), we design BIBmodel, database model and transaction/frame bank business, develop BIB benchmark (BIBbench) as testing suite HPFT computers, build a architecture environment BIBmodel workload testing. Moreover, adopt HP LoadRunner test tool to carry out some comparison tests different SUTs...

10.1109/dsnw.2011.5958847 article EN 2011-06-01

10.1109/tsmc.2024.3489662 article EN IEEE Transactions on Systems Man and Cybernetics Systems 2024-01-01

We propose a method for procedural modeling and animation of cartoon water effects such as caustics, foamy wake, longshore currents. In our we emulate the visual abstraction these by use Voronoi diagrams motion designing relevant controlling mechanisms corresponding to each effect. Our system enables creation with minimal intervention from animator. Through high-level initial specification, are animated procedurally in style hand-drawn cartoons.

10.1631/jzus.c1000228 article EN Journal of Zhejiang University SCIENCE C 2011-07-01

In this article, we propose an efficient intelligent decision method for a bionic motion unmanned system to simulate the formation change during hunting process of wolves. Path planning is burning research focus realize change, and some traditional techniques are designed solve it. The based on evolutionary algorithms one famous path approaches. However, time consumption remains be problem in decisions system. To time-consuming problem, simplify multi-objective optimization as...

10.1177/09596518211065581 article EN Proceedings of the Institution of Mechanical Engineers Part I Journal of Systems and Control Engineering 2021-12-23

We propose a method for procedural modeling and animation of cartoon water effects such as caustics foamy water. In our we emulate the visual abstraction these by use Voronoi diagrams motion designing relevant controlling mechanisms corresponding to each effect. Our system enables creation with minimal intervention from animator. Through high-level initial specification, are animated procedurally in style hand-drawn cartoons.

10.1109/pacificgraphics.2010.8 article EN 2010-09-01

The Federal Kalman filter is a kind of high operational efficiency autoregressive filter, it can estimate the dynamic system status values from measurement data containing noise. This article does some research about how to implement with VHDL language on an FPGA platform. design successfully loaded into platform and operated normally.

10.4028/www.scientific.net/amr.945-949.1729 article EN Advanced materials research 2014-06-01

The paper centers on the character of fault modes recognition for control system and introduces intelligent diagnosis based signal computing that is called system. key point direction in recent research about given out. Later classifier its occupy an important part paper. At last application prospect pattern stated briefly.

10.4028/www.scientific.net/amr.945-949.2754 article EN Advanced materials research 2014-06-01

Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point.Vibration platform uses machine, control system and information technologies to optimize human performance. In order explore the effect of vibration based on machines systems performance, twenty participants were voluntarily involved in this trial. The findings study indicated that automation has significant difference It positive body. Therefore, can be used auto regulation.

10.4028/www.scientific.net/amm.443.281 article EN Applied Mechanics and Materials 2013-10-01
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