HVDC输电系统次同步振荡(SSO)分析的GUI实现

为提高研究效率并普及研究结果，开发了一个用于分析HVDC输电系统次同步振荡(SSO)特性的图形用户界面（GUI)软件，这个GUI软件由人机界面及相关的回调函数组成，其中人机界面是利用MATLAB的GUI工具设汁的，而编写回调函数则利用了MATLAB的数值计算和数据可视化功能。实践表明在MATLAB环境下可容易、高效地开发出令人满意的GUI软件，通过GUI软件可实现SSO参数稳定域可视化分析及特征值分析和时域仿真分析，具有直观、方便的优点，适合广大技术人员对HVDC输电系统发生SSO失稳定可能性的检验。

Graphical user interface of analyzing subsynchronous oscillations in power system with HVDC link

A Graphical user interface (GUI) software was developed to analyze subsynchronous oscillation (SSO) characteristics in the power system with the HVDC link, in order to improve the research efficiency and popularize the research results. The GUI software is made up of the man-machine interfaces and the related callback functions. MATLAB-based GUI tools are used to design the man-machine interfaces. And the callback functions are coded by taking the advantage of the numerical calculation and data visualization functions in MATLAB. The satisfied GUI software can be developed easily and efficiently due to MATLAB. The developed GUI software can implement the analysis of parametric stability region as well as eigenvalue analysis and time domain simulation of SSO, with the advantage of directness and convenience. It can facilitate numerous technicians to verify the possibility of SSO instability in the power system.