Novel power quality regulator on background of micro-grid

The invention provides a novel power quality regulator on the background of a micro-grid aiming at a power quality management problem in the micro-grid. According to the novel power quality regulator on the background of the micro-grid, a distributed power source and energy storage elements are added on the basis of an original parallel connection mixed type active electricity filter, an improved type id-iq compound directive current detection and combining implement method are adopted, and demand that one machine is provided with a plurality of functions is met. According to the novel power quality regulator on the background of the micro-grid, harmonic wave and reactive current compensation of the micro-grid are effectively solved, at the same time, grid-connection generating functions of distributed power source are well achieved, and governance cost of the power quality of the micro-grid is saved to the greatest extent. Simulation and experiment operating data show that the design scheme is effective and reliable.