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system frequency change with characteristics of unlimited composition harmonica refined, and control device for engine with variable frequency using this system c.
system frequency change with characteristics of unlimited composition harmonica refined, and control device for engine with variable frequency using this system c.
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机译:改进了具有无限成分口琴特性的系统频率变化,并使用该系统对变频发动机进行控制。
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摘要
In a static frequency changer controlled by adjusting the time of conduction of the bilateral switching units forming static converters, the time of conduction is split into n time intervals of respective subdurations adding up to be equivalent to the effective time of conduction of the controlled switching unit, and such subdurations are spread and distributed throughout the time period of control of the switching unit both within the original switching pattern of each converter and between the effective times of conduction of the respective converters, thereby to minimize harmonic distortion of the input supply current of the frequency changer.
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