探讨SPWM逆变器调速系统的一个综合方案  

A Unified Plan of the Discussing SPWM Inverter Variable Speed System

作　　者：陈耀中[1] 赵庆生[1] 

机构地区：[1]太原工业大学

出　　处：《电气传动》1995年第3期16-27,31,共13页Electric Drive

摘　　要：本文用同一形式的公共三角载频波,同时进行单、双极式同步调制及自然采样法。对于同步调制低频时出现的强谐波气隙磁势,提出用电机定子绕组期望数据进行削弱。该方案再配合变极升速,能显著简化系统软、硬件,提高控制精度,扩大调速范围。但该方案至今尚无具体实施先例,有待研讨及验证。This paper apply the same form's triangle carrier wave to do the single,double polar synchroniz- ing modulation and natural samplemethod.Facing the strong air-gap magnetic potential at low frequency of syn- chronizing modulation,we point out using motor winding's desired data to weaken it.This scheme,combined with variable poles raising speed way,can simplify the system software and hardware notably,and at the same time increase the control precision and expand the range of variable speed.But this plan need more discussion and verification.

关 键 词：变频调速 脉宽调制 逆变器 

分 类 号：TM464[电气工程—电器]