包括,正文,大图,摘要,目录,外文翻译,正文字数:21019,页数:56 范文编号:JD380 摘要 变频调速是交流调速中的发展方向。但在我国,自行开发、生产变频设备的能力弱,对国外公司的依赖还很严重,因此我们很必要对交流变频调速进行研究。变频调速有多种方法,本文对正弦波脉宽调制技术做了一定的研究,并对其控制策略做了理论上的分析和推导。控制算法采用恒压频比控制。 ABSTRACT VVVF is the direction of AC Speeding development. However, China's domestic development and Frequency inverter perform weakly, which is seriously relied on the foreign companies. therefore ,We think it necessary to make VVVF study ,and have made a certain research on the field of sinusoidal pulse width modulation technology .theoretical analysis and derivation have been made for its control strategy .control algorithms currently uses the constant voltage frequency control which is intensively adopted. 目录 0引言………………………………………………………………………………1
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