Title :
A novel control strategy for shunt active power filter
Author :
Jian, Wu ; Na, He ; Dianguo, Xu
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., China
Abstract :
The shunt active power filter has been proved to be a useful approach to eliminate current harmonics caused by nonlinear loads. This paper proposes a novel control scheme compensating current harmonics selectively. PI current controllers using stationary-frame generalized integrators are adopted, which can realize zero steady-state error of current tracking. Moreover, a new method to calculate the grid reference current is presented. The phase of the reference is obtained by updating Fourier analysis of the grid voltage, while its magnitude is determined from the viewpoint of energy-balance. Experimental results from a prototype verify the feasibility of the proposed scheme.
Keywords :
Fourier analysis; PI control; active filters; electric current control; power harmonic filters; Fourier analysis; PI current controllers; current harmonics; current tracking; grid reference current; grid voltage; shunt active power filter; stationary-frame generalized integrators; zero steady-state error; Active filters; Electric variables control; Error correction; Frequency; Hysteresis; Power harmonic filters; Power system harmonics; Reactive power; Steady-state; Voltage;
Conference_Titel :
Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005
Print_ISBN :
0-7803-9208-6
DOI :
10.1109/IAS.2005.1518516