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A Multi-Individual distributed Modeling and Optimization method for Integrated Energy Systems With Complex Composition

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IEEE ACCESS 2020年 8卷 136198-136205页

作者： Lei, Yunkai Tang, Quan Li, Ting Wang, Yunling Xu, Weiting Zheng, Jiehui Wang, L. X. State Grid Sichuan Econ Res Inst Chengdu 610000 Peoples R China South China Univ Technol Sch Elect Power Engn Guangzhou 510640 Peoples R China

This paper proposes a multi-individual distributed (MID) method for operation optimization of heterogeneous integrated energy systems. The proposed method decouples high-dimensional centralized problem of complex systems into distributed subproblems corresponding with independent small individuals. Each subproblem can be solved by appropriate algorithm according to its physical properties. In the MID method, the individuals carry out their own optimal operation strategies to maximize self-interests while information privacy and independent operation of system participants are protected. Furthermore, optimal energy market clearing prices, which guarantee the maximization of social welfare, are obtained in this method. When market transaction prices deviate from the optimal prices, there will be a marked decline in the benefit of the whole system.

关键词： Cooling Thermal energy Couplings Optimization methods Power systems Natural gas Multi-individual distributed method modeling and optimization integrated energy systems

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A distributed Regularized Jacobi-Type ADMM-method for Generalized Nash Equilibrium Problems in Hilbert Spaces

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NUMERICAL FUNCTIONAL ANALYSIS AND OPTIMIZATION 2018年第12期39卷 1316-1349页

作者： Boergens, Eike Kanzow, Christian Univ Wurzburg Inst Math Campus Hubland Nord Wurzburg Germany

We consider the generalized Nash equilibrium problem in a Hilbert space setting. The joint constraints are eliminated by an augmented Lagrangian-type approach, and we present a fully distributed version by using ideas from alternating direction methods of multipliers (ADMM methods). Convergence follows, under a cocoercivity condition, from the fact that this method can be interpreted as a suitable splitting approach in our Hilbert space endowed with a modified scalar product. This observation also leads to a second algorithmic approach, which yields convergence under a Lipschitz assumption and monotonicity. Numerical results are presented for some examples arising in both finite- and infinite-dimensional Hilbert spaces.

关键词： ADMM method convergence distributed method generalized Nash equilibrium problem Hilbert space

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distributed Target Assignment method of Phased-Array Radar Network for Detecting Hypersonic-Glide Vehicle 5

Distributed Target Assignment Method of Phased-Array Radar N...

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5th International Conference on Robotics and Automation Sciences (ICRAS)

作者： Meng, Fan-qing Tian, Kang-sheng Wu, Chang-fei Early Warning Acad Dept Grad Wuhan Peoples R China Early Warning Acad Dept 4 Wuhan Peoples R China

ISBN: (纸本)9780738133119

The target assignment problem of phased-array radar network for detecting hypersonic-glide vehicles (HGVs) in near space was studied. A distributed target assignment method based on contract net protocol algorithm and auction algorithm was proposed. The target assignment model of phased-array radar network was constructed, the target and the radar were regarded as the bidding commodity and the agent participating in the bidding, respectively. The bidding of the agent was divided into three situations: non-overload first bidding, overload first bidding and continuous bidding, and the bidding functions of the three situations were designed. Each agent determined the bidding price according to its own state and battlefield situation, and the agents determined the bidding result by exchanging bidding information. The performance of our proposed method was verified by two simulation scenarios of multi-target attack and saturation attack The simulation results showed that compared with the independent resource management method, the method proposed in this paper had higher target assignment rate and target threat degree, and better continuity and sustainability for detecting HGVs.

关键词： Phased-array radar network Hypersonic-glide vehicle (HGV) Target assignment distributed method

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distributed Power Service Restoration method for Smart Distribution Grid

Distributed Power Service Restoration Method for Smart Distr...

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IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Xian GuoFu Cong Wei Kang QiBao Sheng YaRu Shandong Univ Jinan Peoples R China

ISBN: (纸本)9781509054183

In view of the problems existing in the traditional centralized power service restoration method a distributed power service restoration method for smart distribution grid is proposed. The method is based on the smart terminal unit (STU) arranged at each measuring point of the distribution grid, and through the information interaction and cooperation between the STU, the power service restoration task is completed. Combined with characteristics of distributed system and requirements of service restoration, distributed management of network topology information, network topology equivalence method, searching method of network topology and the simplified calculation method of the constraint conditions are analyzed and studied. The principle of reciprocating search is put forward, and the determination of the theoretical maximum restoration range and the determination of the scope of the actual restoration are completed. A simplified method for solving the constraint conditions of restoration is proposed based on Thevenin equivalent.

关键词： Smart distribution grid power service restoration distributed method topology search power network equivalence

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A distributed Production Scheduling method for Highly-distributed Manufacturing Systems 1

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IFIP WG 5.7 International Conference on Advances in Production Management Systems (APSM)

作者： Morinaga, Eiji Sakaguchi, Yuki Wakamatsu, Hidefumi Arai, Eiji Osaka Univ Div Mat & Mfg Sci Suita Osaka 565 Japan

ISBN: (数字)9783662447390

ISBN: (纸本)9783662447383

Recent development of computer network technologies is realizing highly-distributed manufacturing systems from the hardware point of view, where each facility is computerized and manages itself autonomously by communicating with other facilities. For this new type of manufacturing systems, a new discrete event simulation paradigm has been discussed, in which sorting of events is performed by exchanging messages about their occurrence times among the facilities. To make this paradigm beneficial enough, it is desirable that re-scheduling process performed after the simulation is carried out in a similar paradigm. We have developed some production scheduling methods for flexible flow-shop production of only one kind of products with just one stage. This paper presents an improved method which can be applied to flexible flowshop of multiple kinds of products with multiple stages.

关键词： production scheduling distributed method agile manufacturing

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Research on distributed Autonomous Time Reference Maintain method of Navigation Constellation 8th

Research on Distributed Autonomous Time Reference Maintain M...

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8th China Satellite Navigation Conference (CSNC)

作者： Yang, Daoning Li, Gang Liu, Ying Yang, Jun Meng, Yinan Zhang, Xianyu Natl Univ Def Technol Coll Mechatron Engn & Automat Changsha 410073 Hunan Peoples R China Beijing Inst Tracking & Telecommun Technol Beijing 100094 Peoples R China Rocket Force Acad Beijing 100000 Peoples R China

ISBN: (纸本)9789811045943;9789811045936

Satellite navigation system to provide users with high-precision positioning, navigation, and timing services, requires a uniform high-precision time reference. When the navigation system is operating in the normal mode, this reference is maintained by the ground and measured through the satellite-ground link and modifies the onboard clock parameters to ensure the uniformity of the entire system time reference. In the autonomous navigation mode, the navigation constellation to leave the ground support, need to maintain the time reference autonomously. This paper analyzes the maintenance method of autonomous time reference based on inter-satellite observation and designs a distributed autonomous time reference maintenance algorithm. The satellite clock error is used as the basic observation to compose the system measurement equation. According to the system state equation, each satellite uses Kalman filter to estimate and update its own clock parameters to maintain the constellation time reference. Simulation results show that the proposed algorithm can maintain the uniform time reference of navigation constellations.

关键词： Inter-satellite link Time reference GNSS distributed method

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A distributed Task Rescheduling method for UAV Swarms Using Local Task Reordering and Deadlock-Free Task Exchange

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DRONES 2022年第11期6卷 322-322页

作者： Li, Jie Chen, Runfeng Peng, Ting Natl Univ Def Technol Coll Intelligence Sci & Technol Changsha 410073 Peoples R China

distributed task scheduling is an ongoing concern in the field of multi-vehicles, especially in recent years;UAV swarm performing complex tasks endows it with new characteristics, such as self-organization, scalability, reconfigurability, etc. This requires the swarm to have distributed rescheduling capability to dynamically include as many unassigned tasks or new tasks as possible, while satisfying tight time constraints. As one of the most advanced rescheduling methods, the Performance Impact (PI)-MaxAss algorithm provides an important reference for this paper. However, its task exchange-based strategy faces the deadlock problem, and the task rescheduling method should not be limited to this. To this end, a new distributed rescheduling method is proposed for UAV swarms, which combines the local task reordering strategy and the improved task exchange strategy. On the one hand, based on the analysis of the fact that the scheduler is unreasonable for individuals, this paper proposes a local task reordering strategy denoted as PI-Reorder, which simply adds the reordering strategy to the recursive inclusion phase of the PI-MinAvg algorithm, so that unassigned tasks or new tasks can be included without relying on the task exchange. On the other hand, from the phenomenon that two or more vehicles occasionally get caught in an infinite cycle of exchanging the same tasks, the deadlock problem of PI-MaxAss is analyzed, which is then solved by introducing a deadlock-free task exchange strategy, where some defined counters are used to detect and isolate the deadlocks. Then, a rescue scenario is used to demonstrate the performance of the proposed methods, PI-Hybrid compared with PI-MaxAss. Monte Carlo simulation results show that, compared with PI-MaxAss, this method can not only increase the number of allocations to varying degrees, but also reduce the average waiting time, while ensuring deadlock avoidance. The methods can be used not only for the secondary optimization of t

关键词： performance impact method multi-agent scheduling task rescheduling distributed method deadlock problem search and rescue UAV swarms

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Research on distributed autonomous time reference maintain method of navigation constellation

Research on distributed autonomous time reference maintain m...

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第八届中国卫星导航学术年会

作者： Daoning Yang Gang Li Ying Liu Jun Yang Yinan Meng Xianyu Zhang College of Mechatronics Engineering and Automation National University of Defense Technology Beijing Institute of Tracking and Telecommunications Technology

ISBN: (纸本)9789811045936

Satellite navigation system to provide users with high-precision positioning, navigation and timing services, requires a uniform high-precision time *** the navigation system is operating in the normal mode, this reference is maintained by the ground and measured through the satellite-ground link and modify the on-board clock parameters to ensure the uniformity of the entire system time *** the autonomous navigation mode, the navigation constellation to leave the ground support, need to maintain the time reference *** paper analyzes the maintenance method of autonomous time reference based on inter-satellite observation and designs a distributed autonomous time reference maintenance *** satellite clock error is used as the basic observation to compose the system measurement *** to the system state equation, each satellite uses Kalman filter to estimate and update its own clock parameters to maintain the constellation time *** results show that the proposed algorithm can maintain the uniform time reference of navigation constellations.

关键词： Inter-satellite link time reference GNSS distributed method

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distributed Minimum Error Entropy Algorithms

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JOURNAL OF MACHINE LEARNING RESEARCH 2020年第1期21卷 1-31页

作者： Guo, Xin Hu, Ting Wu, Qiang Hong Kong Polytech Univ Dept Appl Math Hong Kong Peoples R China Univ Queensland Sch Math & Phys Brisbane Qld 4072 Australia Wuhan Univ Sch Math & Stat Wuhan 430072 Peoples R China Middle Tennessee State Univ Dept Math Sci Murfreesboro TN 37132 USA

Minimum Error Entropy (MEE) principle is an important approach in Information Theoretical Learning (ITL). It is widely applied and studied in various fields for its robustness to noise. In this paper, we study a reproducing kernel-based distributed MEE algorithm, DMEE, which is designed to work with both fully supervised data and semi-supervised data. The divide-and-conquer approach is employed, so there is no inter-node communication overhead. Similar as other distributed algorithms, DMEE significantly reduces the computational complexity and memory requirement on single computing nodes. With fully supervised data, our proved learning rates equal the minimax optimal learning rates of the classical pointwise kernel-based regressions. Under the semi-supervised learning scenarios, we show that DMEE exploits unlabeled data effectively, in the sense that first, under the settings with weak regularity assumptions, additional unlabeled data significantly improves the learning rates of DMEE. Second, with sufficient unlabeled data, labeled data can be distributed to many more computing nodes, that each node takes only O(1) labels, without spoiling the learning rates in terms of the number of labels. This conclusion overcomes the saturation phenomenon in unlabeled data size. It parallels a recent results for regularized least squares (Lin and Zhou, 2018), and suggests that an inflation of unlabeled data is a solution to the MEE learning problems with decentralized data source for the concerns of privacy protection. Our work refers to pairwise learning and non-convex loss. The theoretical analysis is achieved by distributed U-statistics and error decomposition techniques in integral operators.

关键词： Information theoretic learning minimum error entropy distributed method semi-supervised data reproducing kernel Hilbert space

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distributed Control for an Urban Traffic Network

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IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS 2022年第12期23卷 22937-22953页

作者： Viet Hoang Pham Sakurama, Kazunori Mou, Shaoshuai Ahn, Hyo-Sung Gwangju Inst Sci & Technol GIST Sch Mech Engn Gwangju 61005 South Korea Kyoto Univ Grad Sch Informat Sakyo Ku Kyoto 6068501 Japan Purdue Univ Sch Aeronaut & Astronaut W Lafayette IN 47906 USA

In this paper, we develop a distributed control method for an urban traffic network in order to improve traffic conditions and guarantee a smooth operation for all roads and intersections. An optimal coordination among traffic flows is determined by a model predictive control idea. The control objective is formulated as a constrained optimization problem in which the cost function to be minimized is a combination of some traffic network-related performance indexes and the constraints are derived from capacities of roads and intersections. The green time assigned to each road link is computed from its optimal downstream traffic flow. In the proposed algorithms, every road link uses only its local information to determine its control decision which corresponds to a global optimal solution. The algorithms are developed by using a gradient projection-based method and properties of the minimal polynomial of a matrix pair. The effectiveness of the proposed algorithms is validated via numerical simulations with MATLAB and VISSIM.

关键词： Roads Mathematical models Sensors Predictive control Decentralized control Vehicle dynamics Urban areas Urban traffic control model predictive control distributed method

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