摘要
随着我国全国性交直流混联电力系统的形成,电力系统的动态特性变得更加复杂。全过程动态仿真能够将电力系统电磁暂态、机电暂态和中长期动态统一起来进行计算,是研究和分析这种非线性超大规模电力系统动态特性机理、事故特征及其安全稳定措施的重要技术手段。分析了电力系统全过程动态仿真技术的研发与应用现状、存在的技术难点,并对技术发展进行了预测,主要包括电磁暂态-机电暂态-中长期动态统一仿真的数值计算方法和建模技术。该文指出新型数值积分算法、适于多时间尺度仿真的直流输电建模方法、具有智能化和开放式与交互式的并行仿真软件开发方法等关键技术,可为大规模交直流互联电网的安全稳定、经济运行及新技术和新设备的应用研究等提供强有力的仿真工具。
With the formation of large-scale nationw ide AC-DC interconnected pow er system in China,the dynamic characteristics of pow er system are increasingly complicated. Unified Dynamic Simulation is an important tool to analyze the dynamic characteristic,serious faults scenario and stability measures for this non-linear super large-scale pow er system,in w hich the electromagnetic transient,electro-mechanical transient,medium-term and long-term dynamic phenomena of pow er system are united for calculation. The present study and application status,current technical problems and prospects of Unified Dynamic Simulation technology w ere described,w hich mainly included the numerical integration method and modeling technologies involved in electromagnetic transient, electro-mechanical transient, medium and long-term simulation. It is pointed out that some key technologies,such as new numerical integration methods,DC transmission modeling method for multi-time scale simulation,parallel simulation softw are development w ith opening,interactive and intelligent methods,etc.,are pow erful simulation tools for the safe,stable and economical operation of large AC-DC pow er systems and the application researches of new technologies and new devices.
出处
《电力建设》
北大核心
2015年第12期22-28,共7页
Electric Power Construction
基金
国家电网公司大电网重大专项资助项目(SGCC-MPLG001-2012)
南方电网公司资助项目(CSG[2004]0301ZD110)
关键词
全过程动态
数值积分方法
建模技术
并行计算
unified dynamic
numerical integration method
modeling technologies
parallel computing
