Topic
Modeling and simulation
About: Modeling and simulation is a research topic. Over the lifetime, 10273 publications have been published within this topic receiving 111550 citations.
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01 Jan 2001
32 citations
TL;DR: Three kinds of mathematical models for typical data flow within substations according to IEC 61850 are proposed which are cyclic data, stochastic data, and burst data, which are beneficial for the acquisition of more convincing results to assess network performance.
Abstract: IEC 61850, the standard for communication in substations, has resolved the interoperability between intelligent electronic devices (IEDs) from different vendors. Thus, the IEDs' uniform communication standard contributes to the realization of more sophisticated functionality in substation automation systems. However, there are still several issues unsolved for the simulation, planning, and extension of substation communication network (SCN). This paper proposes three kinds of mathematical models for typical data flow within substations according to IEC 61850, which are cyclic data, stochastic data, and burst data. Thereby, a quantitative analysis of data flow is carried out for a typical substation based on the proposed data models. The advantage of virtual local area network (VLAN) and impacts of system faults, as well as network topologies, on a VLAN-based network are evaluated and simulated by OPNET Modeler. The data flow models are beneficial for the acquisition of more convincing results to assess network performance. Thus, the simulation results for a sample substation can be used to support power utility personnel with the planning and construction process of SCN.
32 citations
TL;DR: This manuscript illustrates that the number of experiments required to reduce the forecasting errors to desired levels can be determined by focusing on the proposed forecasting metric.
32 citations
15 May 2005
TL;DR: In this article, the direct torque control (DTC) system of a permanent magnet synchronous motor based on Matlab/Simulink is modeled and analyzed using a building simulation system.
Abstract: This paper introduces the modeling of the direct torque control (DTC) system of permanent magnet synchronous motor based on Matlab/Simulink. The process of the building simulation system is discussed in detail. Simulation results are presented to help understand the system performance and the influence of PI controller parameters on it. The relationship between torque hysteresis loop's width and torque ripple amplitude is analyzed and the result shows that the torque ripple can be reduced by narrowing the torque hysteresis loop's width. The simulation also demonstrates the PI controller parameters Kp and Ki should be properly matched to achieve high system performance. The simulation results and user-friendly graphic user interface proved that Matlab /Simulink is an effective tool to simulate and analyse a motor drive system
32 citations
01 Jan 1979
TL;DR: This paper treats the theoretical aspects of modeling and simulation of dynamical systems, especially those arising in economics, as well as the practical applications of these techniques.
Abstract: This paper treats the theoretical aspects of modeling and simulation of dynamical systems, especially those arising in economics.
32 citations