非对称级联H桥多电平逆变器输出电压控制的简化小信号模型

This paper proposes a simplified small-signal model for output voltage control of a single-phase asymmetrical cascaded H-bridge multilevel inverter (ACHMI). The ACHMI is an n-series connected H-bridge converter, each one with a unique value at the dc link and usually scaled at {1:2:6:…} or {1:3:9:…}. By assuming that the small-signal variation component is equal in all n converter terminal ports, ...