Title :
Adaptive DC voltage control of an active power line conditioner
Author :
Lo, Yu-Kang ; Ou, Sheng-Yuan ; Yen, Shang-Chin
Author_Institution :
Dept. of Electron. Eng., NTUST, Taipei, Taiwan
Abstract :
A new strategy for adaptive DC voltage control of an active power line conditioner (APLC) is proposed in this paper. The APLC is composed of a full-bridge inverter of which the DC voltage is supplied by a capacitor rather than a DC power supply. The relationships of the current slopes are discussed to determine the level of the DC voltage of the capacitor. By measuring the peak slope of the command for the compensating current, an optimal value for the reference DC voltage can be set based to produce an undistorted input current with a minimum switching loss. Experiments show satisfactory results for the APLC to operate under the proposed control method.
Keywords :
adaptive control; bridge circuits; capacitors; invertors; losses; power supply quality; power system control; switching convertors; voltage control; DC voltage; active power line conditioner; adaptive DC voltage control; capacitor; compensating current command; current slopes; full-bridge inverter; minimum switching loss; peak slope measurement; reference DC voltage; undistorted input current; Adaptive control; Capacitors; Control systems; Inverters; Power supplies; Programmable control; Reactive power; Steady-state; Switching loss; Voltage control;
Conference_Titel :
IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]
Print_ISBN :
0-7803-7474-6
DOI :
10.1109/IECON.2002.1187606
