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发明授权
CN105594117B 功率转换装置 有权

功率转换装置
摘要：
使电源电流中的起因于电机旋转的高次谐波减少。功率转换装置具有补偿电流生成部(52)和补偿控制部(60、260)。该补偿电流生成部(52)对在它和交流电源(12)之间流动的补偿电流(Icr、Ics、Ict)进行控制。该补偿控制部(60、260)求出输出电压指令值(Vid、Viq)，以便由所述补偿电流(Icr、Ics、Ict)抵消从所述交流电源(12)流入所述整流电路(22)的负荷电流(Ir、Is、It)中包括的、起因于所述电机(16)旋转的高次谐波成分和起因于所述交流电源(12)的电压周期(Ts)的高次谐波成分。
摘要（英）：

Disclosed herein is a technique for reducing harmonics resulting from the rotation of a motor and generated in a power supply current. This power converter device includes a compensation current generator (52) configured to control compensation currents (Icr, Ics, Ict) flowing between itself (52) and an AC power supply (12), and a compensation controller (60; 260) configured to obtain output voltage instruction values (Vid, Viq) such that the compensation currents (Icr, Ics, Ict) cancel a harmonic component in load currents (Ir, Is, It) flowing from the AC power supply (12) into a rectifier (22) and resulting from the rotation of the motor (16) and a harmonic component in the load currents (Ir, Is, It) and dependent on a period (Ts) of a voltage of the AC power supply (12).

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