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发明公开
CN110429638A 用于抑制并网电流谐波的储能变流器控制方法及装置 无效 - 驳回

用于抑制并网电流谐波的储能变流器控制方法及装置
摘要：
本发明提供了一种用于抑制并网电流谐波的储能变流器控制方法，包括：确定实时并网电流谐波及实时电流谐波跟踪误差；在并网电流谐波跟踪误差的变化趋势满足第一条件时，利用滞环控制器生成控制指令，以得与所述储能变流器连接的并网节点处的电流谐波得到抑制；在并网电流谐波跟踪误差的变化趋势满足第二条件时，利用多频控制器生成控制指令，以使得与所述储能变流器连接的并网节点处的电流谐波得到抑制。该用于抑制并网电流谐波的储能变流器控制方法，无缝切换多频控制方法和滞环控制方法，有效地抑制了新能源发电在并网运行状态下的谐波影响，提高了电能质量。
摘要（英）：

The invention provides an energy storage converter control method for suppressing grid-connected current harmonics, comprising: determining real-time grid-connected current harmonics and a real-time current harmonic tracking error; when the change trend of the grid-connected current harmonic tracking error satisfies a first condition, generating a control command by a hysteresis controller so thatthe current harmonics at a grid-connected node connected to the energy storage converter are suppressed; when the change trend of the grid-connected current harmonic tracking error satisfies a secondcondition, generating a control command by a multi-frequency controller so that the current harmonics at a grid-connected node connected to the energy storage converter are suppressed. The energy storage converter control method for suppressing grid-connected current harmonics, the seamless switching multi-frequency control method and the hysteresis control method effectively suppress the harmonic influences of new energy power generation in a grid-connected operation state, and improve the quality of power.

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