Inverse Unified Power Quality Conditioner: Investigations towards its Performance and Capabilities

The cost of switching devices increases exponentially by increasing their rating. Hence, attractiveness of using unified power quality conditioners (UPQC) is reduced when compensation to be carried out for high power sensitive loads. In this paper, a new configuration for UPQC is presented. Using the fundamental power flow analysis, it is shown that byinterchanging the position of series and parallel part of UPQC, the total rating of compensator decreases. To acquire more rating reduction, a new simple control algorithm is presented for voltage compensation by injecting the reactive power. Using numerical simulations, the performance of proposed and conventional configurations is compared to show their operational effectiveness and limitations in different loads and network conditions.

کلیدواژه ها:

Unified power quality conditioner ، UPQC ، inverse unified power quality conditioner ، I-UPQC ، active power filter ، power quality