摘要
用8031单片机实现双重式电流型变频调速系统低频PWM运行的控制方案。介绍了系统的工作原理和系统构成,对输出电流波形进行了谐波分析,实验结果表明双重式电流型变频调速系统采用PWM方法可以大大减小谐波含量,有效地抑制了低频时的转矩脉动。
This paper presents the control scheme that realizes double current-type VF SR System LF PWM operation by using 8031 SCP. The operation principle and system make-up of, the system are introduced, besides, the harmonic-wave analysis of output current waveform is conducted. The experimental result shows that double curent-type VF SR system adopting PWM method can reduce harmonic-wave content greatly, as a result, the LF torgue impulse is restrained effectively.
出处
《电气自动化》
北大核心
1994年第4期10-13,共4页
Electrical Automation
