摘要:针对并联大功率变频器在使用过程中可能存在谐波的问题,从高频环流、调制误差和不均匀控制等方面进行多并联谐波分析。根据并联大功率变频器的谐波特性,提出一种适用于低次谐波的谐波抑制控制策略并通过试验验证该控制策略的可行性。 |
关键词: 大功率并联 谐波分析 谐波抑制 |
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Harmonic Analysis and Suppression Control Strategy of Multi Parallel Harmonics |
YANG Xuan,FENG Yulong,ZHAO Deji |
Shanghai Marine Diesel Engine Research Institute, Shanghai 201108,China |
Abstract:In response to the possible harmonic problems in the use of parallel high-power inverters,a multi-parallel harmonic analysis was conducted from the aspects of high-frequency circulation,modulation error,and uneven control.Based on harmonic characteristics of parallel high-power inverters,a harmonic suppression control strategy suitable for low order harmonics is proposed,and the feasibility of this control strategy is verified through experiments. |
Key words: high-power parallel connection harmonic analysis harmonic suppression |