摘要
在介绍矢量180°全直流变频空调控制系统的基础上,对DC 180°正弦波驱动电路中需要考虑的电流保护问题,进行了系统的对比分析,提出了一种用于变频控制系统的独立三相电流保护电路技术;该方案技术可靠,精度高,响应速度快,由于充分利用了1个通用比较器IC的4个比较器,器件数量少,成本低。
In this paper,based on the introduction of DC180°variable-frequency control system for air Conditioning,through the analysis of the current protection problem in DC180°sine-wave driving circuits,a stand-alone three-phase current protection circuits technology is applied in variable-frequency control system is proposed.the programme has the following features： reliable technology,high precision,fast response time,with full use of four Comparators in a general Comparator IC,it is proved that it has less devices and low cost.
出处
《装备制造技术》
2012年第1期175-178,共4页
Equipment Manufacturing Technology
关键词
直流变频控制系统
正弦波驱动电路
三相电流
保护电路
DC variable-frequency control system
sine-wave driving circuits
three-phase current
protection circuits
