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发明公开
CN105762824A 一种混合直流输电系统控制方法及装置 有权

一种混合直流输电系统控制方法及装置
摘要：
本发明公开一种混合直流输电系统控制方法及装置，所述混合直流输电系统依据另一端整流站的直流电压来实时调整模块化多电平换流器投入子模块的总个数及投入子模块输出电平的极性；或者依据直流电流或直流功率的大小来实时调整模块化多电平换流器投入子模块的总个数及投入子模块输出电平的极性；或者同时依据直流电流的大小和另一端整流站的直流电压来实时调整模块化多电平换流器投入子模块的总个数及投入子模块输出电平的极性。本发明提供的方法能够有效的控制系统的直流电压和直流电流，避免混合直流输电系统功率输送的中断。
摘要（英）：

The invention discloses a hybrid direct current power transmission system control method and device. The hybrid direct current power transmission system adjusts in real time the total number of used submodules of a modular multilevel converter, and the output level polarity of the used submodules according to the direct current voltage of a rectifier station at the other end; or adjusting in real time the total number of used submodules of a modular multilevel converter, and the output level polarity of the used submodules according to direct current or direct current power; or adjusting in real time the total number of used submodules of a modular multilevel converter, and the output level polarity of the used submodules meanwhile according to the direct current and the direct current voltage of a rectifier station at the other end. The method can effectively control system direct current voltage and direct current, and avoid power transfer interruption of a hybrid direct current power transmission system.

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