摘要
针对某设备所需的三相电源相位精度要求高的特点,在传统DDS技术的基础之上,设计了一款高度对称的三相电源。该设计采用数字闭环控制模型,利用相位误差自动检测值作为反馈,在DDS模块中增加相位自动修正,以达到高精度稳频和高精度三相对称的目的。
In order to solve the requirement of high precision equal phase in three-phase AC power supply,one AC power supply is designed based the traditional DDS technology.In the design,the digital close-loop technology is adopted and the measured result from the automatic measuring phase difference circuit is used as the feedback and the phase difference is corrected and compensated in the DDS.Thus the high stability of frequency and equal phase is achieved.
出处
《通信电源技术》
2010年第4期35-37,40,共4页
Telecom Power Technology
基金
重庆市高等教育教学改革研究项目(0836106)
高等学校电工电子实验教学模式及其运行机制创新探索与实践
关键词
DDS
三相电源
闭环控制
DDS
three-phase power supply
closed-loop control
