电力系统保护与控制Issue(4)：21-25,5.
高压直流输电动态相量模型的改进
Improved dynamic phasor model of HVDC
摘要
Abstract
Dynamic phasors have been introduced to the HVDC model to analyze its dynamic behavior. Dynamic phasor method shows high accuracy by representing the switch state of the valve with switching function. In the need of HVDC sub-synchronization oscillation analysis, we consider the influence of thyristor dead time and trigger control on the HVDC dynamic phasor model, and accordingly establish an improved HVDC dynamic phasor model based on the electromagnetic transient simulation platform. Based on the baseline system of HVDC, we make a simulation comparison between PSCAD custom model and the electro transient model, comparing the time response curve of state variables between AC and DC system with disturbance of different frequency. Consequently, we authenticate the applicability of the improved HVDC dynamic phasor model in different frequency ranges.关键词
电力系统/动态相量/高压直流输电/次同步振荡Key words
power system/dynamic phasors/HVDC/SSO分类
信息技术与安全科学引用本文复制引用
孙慧平,王西田,李秀君..高压直流输电动态相量模型的改进[J].电力系统保护与控制,2013,(4):21-25,5.基金项目
国家自然科学基金资助项目(50807036) （50807036）
