摘要
在基于异步电动机稳态模型的基础上,应用电压空间矢量PWM技术,并以FPGA作为核心控制元件实现变频调速。在分析电压空间矢量与磁链矢量关系的基础上,以在电动机空间形成圆形旋转磁场为依据,得出矢量合成公式,通过编写运算模块生成输出波形。采用FPGA进行设计可简化系统的硬件结构,降低成本,并显著提高系统的处理能力。
Based on steady-state model of induction-motor, SVPWM and FPGA was used as the core control elements to achieve variable frequency control. Based on the analysis of the relationship of voltage space vector and flux vector,and according to form a circular rotating magnetic field in motor space,obtained the formula of vector synthesis, and generated the output waveforms by writing operation module. Using FPGA to design can simplify the system hardware architecture, reduce cost and significantly improve the system's processing capabilities.
出处
《电气传动》
北大核心
2011年第2期15-18,27,共5页
Electric Drive
关键词
异步电动机
空间电压矢量脉宽调制
变频调速
可编程逻辑门阵列
induction-motor
space voltage vector PWM
frequency control system
field programmable gatearray (FPGA)