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Small signal analysis of HVDC-HVAC interactions

机译:HVDC-HVAC相互作用的小信号分析

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This paper presents a small signal analysis of interactions between HVAC and HVDC systems. The eigenvalue analysis, along with analysis of participation factors, is firstly described. The eigenvalue sensitivity analysis shows how the changes of AC system parameters influence the stability of the considered HVDC-HVAC system. The influence of short circuit ratio (SCR) changes on both the rectifier and the inverter AC system, is studied by examining the relative movement of the system eigenvalues. The most important conclusions about AC-DC interactions are obtained by investigating the nature of inherent feedback loops between the systems. By examining the changes of all interaction variables, it is determined which of the interaction variables should be controlled and which are better left uncontrolled.
机译:本文介绍了HVAC和HVDC系统之间相互作用的小信号分析。首先描述特征值分析以及参与因子分析。特征值灵敏度分析显示了交流系统参数的变化如何影响所考虑的HVDC-HVAC系统的稳定性。通过检查系统特征值的相对运动,研究了短路比(SCR)变化对整流器和逆变器交流系统的影响。通过研究系统之间固有反馈回路的性质,可以得出有关交直流相互作用的最重要结论。通过检查所有交互变量的变化,可以确定哪些交互变量应受到控制,哪些更好不受控制。

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