摘要
本设计由前级DC/DC升压电路和后级DC/AC单相逆变电路组成。DC/DC升压电路采用Boost拓扑结构,而DC/AC逆变以dsPIC33FJ16GS502单片机为主控制器,实现对逆变器的数字化控制。逆变器的控制算法采用交流电压平均值闭环控制。样机指标满足设计要求,不仅具有性能优良的变频、输出稳压功能,而且有低的输出电压THD、高的效率和可靠性,以及完善过载保护和自动恢复功能,装置还加设了按键、显示器等友好的人机界面。
This design is constituted by the former stage DC/DC boost circuit and the second stage DC/AC single-phase inverter circuit. To be more specific, the DC/DC boost circuit section uses the Boost topology, while the DC/AC inverter section is based on dsPIC33FJI6GS502 controller which in order to implement digital control of inverter, lnverter control algorithm uses the average AC voltage closed-loop control. The prototype meet the design requirements, which not only has excellent performance in frequency variation, voltage stabilization, low output voltage THD, high efficiency and reliability, as well as the perfect overload protection and automatic recovery function. Besides, the prototype also has buttons, display and other user-friendly interface.
出处
《电子测试》
2013年第2期30-33,15,共5页
Electronic Test
基金
国家大学生创新性实验计划项目(111038601)
关键词
单相逆变
变频
数字控制
single-phase inverter, frequency variation, digital control
