Title :
A Novel Control Method for Active Power Filter Considering Harmonic Voltage in Power Source
Author :
Qing Fu ; Geng Yang
Author_Institution :
Inst. of Power Electron. & Control Technol., Sun Yat-sen Univ., Zhuhai
Abstract :
The harmonic voltage in power grid is enlarged with kinds of dynamic power source and a great deal of active equipments and non-linear loads connected to the power grid. In order to compensate the harmonic current caused by the harmonic voltage with active power filter, the paper analyses the shortcomings of the control based on the sinusoidal power source and proposes a novel close-loop control method for active power filter. A fore-feed control of source harmonic voltage is realized under the condition of high load harmonic impedance by detecting the voltage of the point of common coupling (PCC). The proposed method is very simple and can improve the performance of the traditional close-loop controller. The simulation confirms the better performance of the novel controller
Keywords :
active filters; closed loop systems; control system synthesis; power harmonic filters; power system harmonics; active power filter; close-loop control method; dynamic power source; fore-feed control; harmonic voltage; high load harmonic impedance; nonlinear loads; point of common coupling; power grid; sinusoidal power source; Active filters; Arithmetic; Delay; Harmonic distortion; Impedance; Power grids; Power harmonic filters; Power system dynamics; Power system harmonics; Voltage control; Active Power Filter; Fore-feed Control; Source harmonic voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1712000
