Title :
A new control method for single-phase active power line conditioners
Author :
Lo, Yu-Kang ; Kuo, Lian-Chen
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
A new control method for single-phase shunt active power line conditioners (APLCs) operated under zero average power consumption is proposed in this paper. The amplitude of the sinusoidal source current which is in-phase with the source voltage can be determined from the average value of the instantaneous load power. Then the command current for the shunt APLC is obtained by subtracting the source current from the load current. Neither bulky filter nor time-consuming computation is required. The shunt power compensator supplies all the harmonics of the load current and the source only supplies the fundamental component. Experimental results on a prototype verify the feasibility of the presented scheme
Keywords :
PWM invertors; compensation; electric current control; power consumption; power control; power conversion harmonics; power factor correction; PWM voltage source inverters; command current; control method; instantaneous load power; load current harmonics; shunt power compensator; single-phase active power line conditioners; sinusoidal source current amplitude; source current; source voltage; unity input power factor; zero average power consumption; Active filters; Circuits; Energy consumption; Power harmonic filters; Power supplies; Power system harmonics; Prototypes; Reactive power; Shunt (electrical); Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-5160-6
DOI :
10.1109/APEC.1999.750513
