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Analytical investigation of factors influencing controllability of MMC-VSC-HVDC on inter-area and local oscillations in interconnected power systems

机译:影响MMC-VSC-HVDC控制性的因素的分析调查在互联电力系统中的区域间和局部振荡中的控制

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This paper investigates various factors influencing the capability of MMC-VSC-HVDC systems to enhance damping of system oscillations. The investigation is done in the frequency-domain using a detail model of a MMC-VSC-HVDC system. Simulation results demonstrating the controllability of MMC-VSC-HVDC systems on inter-area and local oscillations in interconnected power systems are described. It is revealed that voltage-dependency characteristics of system loads, inertia and impedance of interconnected AC systems are significant factors influencing the damping support ability of a MMC-VSC-HVDC system. The influencing tendencies of the factors are different to different oscillation types (inter-area and local) and on different modulation channels (active & reactive powers).
机译:本文研究了影响MMC-VSC-HVDC系统能力,增强系统振荡的各种因素。使用MMC-VSC-HVDC系统的细节模型在频域中进行调查。描述了仿真结果,说明了在互连电力系统中对MMC-VSC-HVDC系统的可控性和互联电力系统中的局域振动的可控性。据透露,系统负荷,惯性和互连AC系统的阻抗的电压依赖性特性是影响MMC-VSC-HVDC系统的阻尼支持能力的重要因素。因素的影响趋势与不同的振荡类型(面积间和局部)和不同调制通道(有源和反应力)不同。

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