期刊论文

Design of a frequency adjustable and single-phase output boost type inverter

中文

电子设计工程

1674-6236

2017

25

19

110-113

10.3969/j.issn.1674-6236.2017.19.028

衡阳市科学技术发展计划项目（2015KG50）； 2016年南华大学校级教研课题资助项目（2016XJG-ZZ01）；

本校为第一机构

采用同步boost升压和全桥逆变技术设计了单相正弦波逆变电源电路,将24 V直流转换为36 V交流电压,以TM4C123GH6PM微控制器为主控芯片,加上输入电压前馈控制、输出电压-电流双闭环PID控制、FFT处理,具有高效（效率为95%）、低THD（0.5%左右）、低瞬态响应时间（在100 ms以内）、输出频率20-100 Hz可调、频率准确的特点;在输入欠过压、输出过流等情况下,能进行自我保护,故障排除后自恢复输出功能;可显示输出功率、功率因数、THD、频率和电路运行状态.系统电路结构简单、成本低、稳定可靠.

A single-phase sine-wave inverter power supply is designed. It can convert the 24V DC to 36V AC. It adopts synchronous boost converter and full bridge inverter technology, and TM4C123GH6PM micro-controller as the control chip. The input voltage feed-forward control, the output-voltage-current double closed-loop PID control methods and FFT process are applied. The experimental results show that its convert efficiency high to 95%, THD low to 0.5%, and transient response time within 100ms.The output frequency can adjust from 20 Hz to 100 Hz and wi...