AC/DC Harmonic Interaction in HVDC Systems

ICHPS V International Conference on Harmonics in Power Systems. Pub Date : 1900-01-01 DOI:10.1109/ICHPS.1992.559036

K. Sadek, N. Christl, P. Lutzelberger

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引用次数: 2

Abstract

The harmonic interaction between AC- and DC-systems has been discussed in various publications with respect to both charactcristic and non-characteristic harmonic phenomenon injected into ac-power transmission systems by HVDC converters. However, in recent convener stations different magnitudes of harmonic currents than the theoretical predicted values have been measured. This paper describes a mathematical circuit analysis to determine the transfer of harmonics from the supplying ac-grid to the receiving ac-system and vice versa connected by HVDC links. In general there are mathematical rules, which type and magnitude of harmonics (dependent on the positive or negative sequence system components) will be transferred through the dc-circuit and injected into the receiving power grid. A mathematical model is represented to describe the transfer of harmonics (harmonic voltage distortion from the sending ac-system) through the HVDC link and its impact on the receiving ac-side. The contribution of these harmonic voltages has been analyzed and will be considered for modelling the harmonic current source for the inverter terminal. The model is valid for power flow in both directions.

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高压直流系统中的交直流谐波相互作用

交流和直流系统之间的谐波相互作用已经在各种出版物中讨论过，涉及高压直流变流器注入交流输电系统的特征和非特征谐波现象。然而，在最近的召集站测量到的谐波电流大小不同于理论预测值。本文描述了一个数学电路分析，以确定谐波从供电交流电网传输到接收交流系统，反之亦然，通过高压直流链路连接。一般来说，有数学规则，谐波的类型和大小(取决于正序或负序系统组件)将通过直流电路传输并注入接收电网。建立了一个数学模型来描述谐波(从发送交流系统产生的谐波电压畸变)通过高压直流输电链路的传输及其对接收交流侧的影响。对这些谐波电压的贡献进行了分析，并将用于对逆变器终端的谐波电流源进行建模。该模型对两个方向的潮流都是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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ICHPS V International Conference on Harmonics in Power Systems.

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