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发明公开
CN107947219A 一种特高压直流输电系统直流偏磁引起的谐波分析方法 无效 - 撤回

一种特高压直流输电系统直流偏磁引起的谐波分析方法
摘要：
本发明公开了一种特高压直流输电系统直流偏磁引起的谐波分析方法，包括，设定特高压直流输电系统交、直流侧谐波畸变限值标准，在PSCAD/EMTDC中建立了±800kV直流输电系统电磁暂态模型，仿真分析直流输电系统在双极对称运行及单极运行情况下交、直流侧谐波情况，并与限值标准进行对比，提出并验证了直流偏磁抑制措施。本发明可为特高压直流输电系统直流偏磁抑制、谐波治理及滤波器设置提供参考。
摘要（英）：

The invention discloses an analysis method for harmonic waves caused by DC bias of an extra-high-voltage DC power transmission system. The method comprises that harmonic wave distortion limit value standards of AC and DC sides of the extra-high-voltage DC power transmission system are set, an electromagnetic transient model of the +/-800kV DC power transmission system is established in PSCAD/EMTDC, harmonic wave conditions of the AC and DC sides under bipolar symmetric operation and unipolar operation of the DC power transmission system are analyzed in a simulated way and compared with the limit value standards, and a DC bias inhibition measure is provided and verified. The method can be used to provide reference for DC bias inhibition, harmonic wave treatment and filter setting of the extra-high-voltage DC power transmission system.

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