A SDN-enabled Integrated Space-Ground Information Network Simulation Platform

As the energy management system (EMS) participates in the closed-loop control of shipboard integrated power system (IPS), the information network of EMS is closely coupled with the power system and its characteristics affect power system performance significantly. To study the close-coupling relationship between the two systems, a cyber–physical co-simulation platform based on the high level architecture (HLA) framework is constructed in this paper. The proposed platform uses PSCAD and OPNET to simulate shipboard power system and information network respectively, and utilizes OPNET HLA nodes and PSCAD user-defined modules to implement co-simulation interfaces. In order to achieve a higher co-simulation precision without impairing efficiency, an optimized event-driven co-simulation synchronization method is also proposed. By pre-defining power system synchronization points and detecting information network synchronization points in the co-simulation process, both systems can be synchronized in time and the synchronization error is eliminated. Furthermore, the co-simulation efficiency is also improved by optimizing the data transmission in the synchronization process. A co-simulation model of shipboard power distribution network protection based on CAN bus communication is built and analyzed. Simulation results show that the proposed co-simulation platform and synchronization method are feasible and effective.

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Application and Improvement of the Network Simulation Platform

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.513-517.2514 ◽

2014 ◽

Vol 513-517 ◽

pp. 2514-2517 ◽

Cited By ~ 1

Author(s):

Yan Hong Yu

Keyword(s):

Resource Management ◽

Literature Review ◽

Human Resource Management ◽

Human Resource ◽

Network Simulation ◽

Simulation Platform ◽

Network Teaching ◽

Teaching Platform

Network teaching platform for the major of human resource management in colleges was studied with the method of literature review. Firstly, the definition and the composition of network teaching platform were described. Secondly, the advantages of network teaching platform were summarized, which included training the students of human resource management major comprehensively, reducing the barriers of human resource management automation, spreading the HRMIS, etc. Thirdly, some suggestions to the network teaching platform were made. These suggestions could be classified into two aspects: some suggestions are for system itself, the others are for the system users. The aim of this paper is expected to propel forward the application of network teaching platform in colleges.

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Research on Aircraft Communication and Satellite Link Handoff Simulation for Spatial Information Network

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.268-270.1688 ◽

2012 ◽

Vol 268-270 ◽

pp. 1688-1691

Author(s):

Xiao Guo Ye ◽

Ru Chuan Wang

Keyword(s):

Spatial Information ◽

Network Simulation ◽

Information Network ◽

Satellite Network ◽

Network Simulator ◽

Network Nodes ◽

Extension Method ◽

Satellite Link ◽

Kernel Module ◽

Simulation Results

Aircraft communication and satellite link handoff issues in spatial information network are very important and are focused in this paper. The simulation modules of satellite network nodes and links in network simulator version 2(NS-2) are analyzed in details in this paper. A method of extending NS-2 kernel module is proposed based on analysis of satellite network simulation principle and approach. As an example, the aircraft communication simulation module is designed and implemented. Simulation results show that flight of aircraft has effect on the link handoff characteristic, and show that the proposed extension method is feasible.

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