Title :
A high-power controllable reactor based on transformer magnetic flux compensation
Author :
Zhang, Yu ; Chen, Qiaofu ; Cheng, Lu
Author_Institution :
Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
In this paper, a novel high-power controllable reactor based on magnetic flux compensation (CRMFC) is described. A structure of multiple-winding transformer is adopted to realize high-power application in power utilities. Meanwhile, a series of middle-level PWM-inverter units are employed to generate compensating current. The principle of the multiple-windings compensation is revealed and a practical control strategy is proposed. A rated 6 kV, 800 kVA prototype is fabricated and the experimental results verify the feasibility of the whole scheme, as well as the excellent characteristics of the proposed controllable reactor.
Keywords :
PWM invertors; compensation; magnetic flux; power transformers; transformer windings; apparent power 800 kVA; high-power controllable reactor; magnetic flux compensation; middle-level PWM-inverter; multiple-winding transformer; power utilities; voltage 6 kV; Circuit faults; Control systems; Inductors; Magnetic flux; Magnetic variables control; Power system stability; Power system transients; Pulse width modulation; Pulse width modulation inverters; Thyristors; PWM voltage source inverter; controllable reactor; high power; magnetic flux compensation; multi-winding transformer;
Conference_Titel :
Electrical Machines and Systems, 2007. ICEMS. International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-89-86510-07-2
Electronic_ISBN :
978-89-86510-07-2