基于OPNET的电网自动化系统建模与性能评价

摘要

A method of power-grid automation system modeling and system performance evaluation is proposed to provide analysis means and optimization ideas in the aspects of modeling simulation and quantitative analysis for the design,operation and planning of power-grid automation system.The contents and structure of OPNET-based power-grid automation system modeling are analyzed and elaborated respectively in three aspects:equipment model,protocol model and information dispatch model of power-grid automation system.The operational conditions of power-grid automation system and the limitations of present system performance evaluation methods are analyzed,and a system performance evaluation method based on the comprehensive indexes is proposed.Simulation and calculation are carried out for a regional power-grid automation system and results show that,the OPNET-based power-grid automation system model can simulate different operational scenarios precisely and the proposed system performance evaluation method can identify the operating conditions effectively.%从建模仿真和定量分析这2个角度出发,提出电网自动化系统建模和性能评价方法,为电网自动化系统设计、运行以及规划提供分析手段与优化思路.首先分析了基于OPNET的电网自动化系统建模内容及结构,并分别从电网自动化系统设备模型、协议模型和信息调度模型三方面对其进行详细阐述.进一步,在分析电网自动化系统运行状态和当前系统性能评价方法局限性的基础上,提出电网自动化系统性能综合指标评价方法,并基于某地区电网自动化系统进行仿真与算例分析.结果表明,基于OPNET的电网自动化系统模型能够有效模拟系统各类运行场景,提出的电网自动化系统性能评价方法能够有效辨识系统运行状态.