一种具有快速动态控制的无变压器统一电能质量调节器

A single-phase transformer-less unified power quality conditioner (TL-UPQC) is presented. Apart from having no isolation transformer, the proposed structure utilizes four switching devices only, forming two half-bridge voltage-source inverters-one connected in parallel with the load and another one connected in series with the ac mains. The two inverters share the same dc link. The parallel invert...