线路模型对仿真分析串补次同步振荡现象的影响分析  

Influence analysis of line models on the simulation analysis of a series complement sub-synchronous oscillation phenomenon

作　　者：郭劲东 李云阁 王敏 付周兴[1] GUO Jindong;LI Yunge;WANG Min;FU Zhouxing(School of Electrical and Control Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;Electric Power Research Institute,State Grid Shaanxi Electric Power Company,Xi'an 710100,China;Economic Research Institute,State Grid Shaanxi Electric Power Company,Xi'an 710075,China)

机构地区：[1]西安科技大学电气与控制工程学院,陕西西安710054 [2]国网陕西省电力公司电力科学研究院,陕西西安710100 [3]国网陕西省电力公司经济技术研究院,陕西西安710075

出　　处：《电力系统保护与控制》2021年第20期174-179,共6页Power System Protection and Control

基　　金：国家自然科学基金项目资助(U1766208)。

摘　　要：次同步振荡是一种严重威胁电力系统安全稳定运行的故障,围绕其产生机理与抑制措施,已经开展了一系列研究工作。但是,关于不同线路模型对仿真分析的影响,并未有相关文献介绍。为了探究在进行仿真分析时不同线路模型对分析结果的影响以及各自的分析适用范围,通过比较不同线路模型的阻尼水平,总结各线路模型对仿真分析串补次同步振荡现象的影响,并使用电磁暂态仿真软件ATP-EMTP进行仿真验证。验证结果表明,集中电感电阻模型、π模型、Bergeron模型的阻尼水平相当,JMarti模型所提供阻尼水平最大。在进行一般分析时,可使用集中电感电阻模型以快速得出结论;在涉及抑制装置设计的场合,应谨慎使用JMarti模型。Sub-synchronous oscillation is a fault that seriously threatens the safe and stable operation of a power system,and research has been carried out around the generation mechanism and suppression measures.However,there is no related literature on the influence of different line models on simulation analysis.In order to explore this influence of different line models and their respective analysis application scope during simulation analysis,by comparing the damping levels of different line models the influence of each line model on the simulation analysis of series-compensated sub-synchronous oscillation is summarized.The electromagnetic transient simulation software ATP-EMTP is used for simulation verification.The results show that the damping levels of the concentrated inductor resistance model,theπ-type model,and the Bergeron model are equivalent.The JMarti model as the most accurate model provides the largest damping level.When performing a simplified analysis,the concentrated inductor resistance model can be used to quickly draw conclusions;and in cases where refers to inhibit device design,the JMarti model can be used prudently.

关 键 词：次同步振荡 ATP-EMTP 线路模型 仿真分析 阻尼水平 

分 类 号：TM712[电气工程—电力系统及自动化]