【摘要】 基于矢量控制理论设计了一套全数字变频调速系统．本系统用IGBT作为功率元件组成交－直－交电压型逆变主回路，以80C196KB双CPU为控制核心，保护功能齐全，并介绍了其检测及保护电路．实验结果表明，该系统精度高，动态响应快，谐波电流小．更多还原

【Abstract】 Based on vector control theory, a fully digital variable speed system is designed, in which IGBT is used as power element in the main circuit of AC-DC-AC voltage type inverter, and two 80C196KB processors are used as the control kernel. The block diagram of the hardware with perfect protection circuits and the construction of software are shown. Experimental results show that it is of high precision, quick dynamic response and low current harmonic.更多还原