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本文描述一台Inte18086微机控制脉宽调制器(PWM),其数字化电压频率指令系独立地输入接收,而输出产生精确的三相PWM波,能用以拖动晶体管或晶闸管逆变器供电交流拖动系统。在低频区采用增强计算均匀采样[注]技术,而在高频区用基于字识别和模式检索法。组立了一个调制器实验面包板,在6—250HZ频率范围进行了调试,分辨频率为0.0077HZ,在整个范围以1％步长均匀调压至方波,调制器已用于晶体管逆变器和混合计算机仿真感应电动机拖动系统进行充分试验,显示出较目前已有技术在性能上有改进。
This article describes a Inte18086 microcomputer control pulse width modulator (PWM), the digital voltage and frequency commands are independently input and receive, and the output produces accurate three-phase PWM wave, can be used to drag the transistor or thyristor inverter AC power supply Moving system. In the low-frequency area, the enhanced calculation of uniform sampling [Note] technology, and in the high-frequency area with word-based recognition and pattern retrieval. Modular experimental breadboards were set up and tuned in the frequency range of 6-250 Hz with a resolution frequency of 0.0077 Hz and a uniform voltage regulation of 1% steps to a square wave over the entire range. The modulator was used in transistor inverters And hybrid computer simulation of the induction motor drag system to conduct a full test shows that the existing technology has improved over the current performance.