Load compensation active conditioner for power quality

This paper presents the obtained experimental results with a single-phase experimental prototype of a load compensation active conditioner, sLCAC. The sLCAC is composed by a series-parallel combination of active power filters, to provide a global conditioning of the load against harmonic distortion: to isolate the load voltage v_L from the harmonics of the supply voltage v_S, as well as to regulate it to the rated value; and also to enhance the supply current i_S, compensating the harmonic and reactive components of the load current i_L. The control and components design of the LCAC allows to apply it to different types of load, with an efficient and robust behavior. Experimental prototype results are presented, applied to two types of non-linear loads with distorted supply voltage. The analysis of these results show the validity of the proposed design for the development of active conditioners with a wide load range in highly distorted environments