摘要
该文提出了一种新型单相逆变电源。通过对其谐波产生原因进行深入细致分析,并研究电力系统处于三相平衡状态和三相不平衡状态对逆变电源工作特性的影响,提出了一种新的谐波消除脉冲宽度调制方法,从而简化了逆变电源主电路结构,可以大大减小甚至去掉了传统逆变电源的直流侧滤波电容。最后通过仿真验证了新型逆变电源及其脉冲宽度调制方法的良好特性——网侧电流畸变率低、输出电压谐波小及响应速度快。
A novel single-phase inverter source is proposed. The causes of the harmonic production and the impact of balanced and unbalanced systems on the characteristics of the inverter source are analyzed in detail. As a result, a novel method of harmonic elimination of the PWM is presented. The novel PWM technique simplifies the structure of the inverter mains and greatly decreases or even removes the DC filter capacitor used in the traditional PWM technique of inverters for eliminating the harmonics. The satisfactory characteristic (small aberrance of ac side抯 current, high quality output voltage of inverter and quick response) of the new inverter source and the new PWM technique are verified by the results of simulations.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2003年第7期62-66,共5页
Proceedings of the CSEE
关键词
单相逆变电源
调制方式
逆变电路
逆变器
谐波
Inverter source
PWM
Harmonic analysis
Harmonic elimination
Simulation
