复杂多机系统次同步振荡的分析与抑制

对复杂多机系统与HVDC相互作用引起的次同步振荡进行分析与抑制研究。采用机组作用系数法对不同运行方式下可能发生次同步振荡的机组进行了筛选。依据UIF不变的原则将复杂多机系统简化为单机交直流系统,利用复转矩系数法分析了系统的阻尼特性。将根据单机系统设计的次同步振荡阻尼控制器用于抑制复杂多机系统的次同步振荡,时域仿真结果表明了所设计的次同步振荡阻尼控制器的有效性。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 39; no. 11; pp. 83 - 89
Main Author 徐衍会
Format Journal Article
LanguageChinese
Published 新能源电力系统国家重点实验室(华北电力大学)北京,102206 2011
Subjects
仿真
次同步振荡
阻尼特性
高压直流
仿真
高压直流
次同步振荡
阻尼特性
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ISSN1674-3415
DOI10.3969/j.issn.1674-3415.2011.11.015

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Summary:对复杂多机系统与HVDC相互作用引起的次同步振荡进行分析与抑制研究。采用机组作用系数法对不同运行方式下可能发生次同步振荡的机组进行了筛选。依据UIF不变的原则将复杂多机系统简化为单机交直流系统,利用复转矩系数法分析了系统的阻尼特性。将根据单机系统设计的次同步振荡阻尼控制器用于抑制复杂多机系统的次同步振荡,时域仿真结果表明了所设计的次同步振荡阻尼控制器的有效性。
Bibliography:HVDC; subsynchronous oscillation; damping characteristic; simulation
41-1401/TM
Subsynchronous oscillation resulting from the interaction between complex multi-machine system and HVDC is analyzed and damped.Firstly,the turbine generator units that have SSO problem are screened out using unit interaction factor method.Then,the complex multi-machine system is simplified into single-machine AC-DC hybrid system according to the principle of UIF invariability and the damping characteristic of AC-DC hybrid system is analyzed by complex torque coefficient method.Finally,the HVDC supplemented subsynchronous damping controller designed for single-machine system is used to damp the subsynchronous oscillation of the complex multi-machine system and the simulation results indicate that the SSDC designed in this paper is effective.
XU Yan-hui（State Key Laboratory for Alternate Electrical Power System with Renewable Energy Source（North China Electric Power University）,Beijing 102206,China）
ISSN:1674-3415
DOI:10.3969/j.issn.1674-3415.2011.11.015