变电站一二次设备场景优化建模及仿真研究

Modeling and Simulation of substation primary and secondary equipment scene optimization

以变电站一、二次设备场景优化建模及仿真方法为研究对象,提出了一种基于网格合并的三维场景模型优化和交互方法,实现变电站一、二次设备三维场景模型的优化;针对现有快速渲染技术存在的问题,提出基于视口射线检测的变电站三维场景的快速渲染方法,以提高变电站三维设备场景的渲染速度和降低计算机配置;针对现有的培训仿真系统无法实现变电站异常故障仿真的功能缺陷,基于变电站设备运行机理、组件化建模、基于时序的逻辑判断法的继电保护功能仿真算法,建立了满足三维仿真需求的变电站仿真模型,实现了变电站一、二次设备正常运行操作与故障异常仿真功能。以北京电网变电站三维可视化仿真系统建设为例,验证了构建的系统能够实现电网全“四遥”数据与仿真系统三维场景模型实时同步匹配,实现云上三维仿真建模与仿真系统联动。

The modeling and simulation method of substation primary and secondary equipment scene optimization is studied.A 3D scene model optimization and interaction method based on grid merging is proposed to optimize the 3D scene model of substation primary and secondary equipment;Aiming at the problems of existing fast rendering technology,a fast rendering method of substation 3D scene based on viewport ray detection is proposed to improve the rendering speed of substation 3D scene and reduce the computer configuration;Aiming at the problem that existing training simulation system cannot realize substation abnormal fault simulation,based on the operation mechanism of substation equipment,component-based modeling,relay protection function simulation algo-rithm based on logical judgment method of time sequence and other technologies,a substation simulation model meeting the three-di-mensional simulation requirements is established to realize the normal operation and abnormal fault simulation of primary and seconda-ry equipment in the substation.Taking the construction of the three-dimensional visual simulation system of Beijing Power Grid Sub-station as an example,it is verified that the system constructed in this paper can realize the real-time synchronous matching of the“four remote”data of the power grid and the three-dimensional scene model of the simulation system,improve the equipment cognicogni-tive ability of the trainers and improve the training quality.