华东交通大学学报Issue(6):93-99,7.
抑制两级式逆变器中间母线电压二次纹波的方法
A Technique for the Secondary Ripple Reduction of the Bus Voltage in Two-stage DC-AC Inverter
摘要
Abstract
A control method was proposed aiming at suppressing the second ripple voltage amplitude in interme-diate bus capacitor of two stage single-phase inverter. This paper analyzed the power flow, ripple power and the mechanism of ripple voltage in the intermediate bus capacitors in two stage single-phase power system. A dis-turbance which was the same frequency and phase as bus voltage was added in the voltage loop of the front dc converter. The bus capacitor voltage ripple suppression can be achieved by adjusting the size of the disturbance. This method can increase the voltage loop bandwidth, which can improve the response speed of the system and the dynamic performance when the load jump happened. An experimental platform based on DSP was built up with the proposed control strategy, and the experimental results proved its effectiveness and rationality.关键词
逆变器/二次纹波电压/直流变换器/控制方法Key words
inverter/second ripple voltage/DC converter/control method分类
信息技术与安全科学引用本文复制引用
袁义生,张育源,周盼,黄志敏..抑制两级式逆变器中间母线电压二次纹波的方法[J].华东交通大学学报,2015,(6):93-99,7.基金项目
国家自然科学基金项目(51467005);江西省自然科学基金项目 ()