More and more devices connected to low voltage networks inject currents in the frequency range above 2 kHz up to 150 kHz, so called supraharmonics. Supraharmonics can appear as synchronized or nonsynchronized to the power system frequency. A device exposed to a fixed supraharmonic frequency are here shown to generate interharmonics when the power system frequency deviates from the ideal 50/60 Hz. Resulting interharmonic frequency and magnitude are determined by three factors, the frequency at which a supraharmonic component exist, the voltage magnitude of that component, and the deviation from 50/60 Hz of the power system frequency. Formation of interharmonics is confirmed in a functional model and validated through the measurements and numerical simulations.

中文翻译：

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暴露于高于2 kHz的非同步高频电压的AC-DC转换器中的间谐波发射

连接到低压网络的设备越来越多，注入的电流在2 kHz以上，最高150 kHz的频率范围内，即所谓的超谐波。超谐波可以显示为与电源系统频率同步或不同步。当电源系统频率偏离理想的50/60 Hz时，暴露在固定的超谐波频率下的设备会产生间谐波。产生的间谐波频率和幅度由三个因素确定：超谐波分量存在的频率，该分量的电压幅度以及与电力系统频率的50/60 Hz的偏差。间谐波的形成在功能模型中得到确认，并通过测量和数值模拟得到验证。