Title :
A novel control strategy for BLDCM applied in flywheel energy storage system based on unipolar and bipolar control
Author :
Yi Feng ; Heyun Lin ; Jianhu Yan ; Yujing Guo ; Xiaoquan Lu ; Hui Yang
Author_Institution :
Eng. Res. Center for Motion Control, Southeast Univ., Nanjing, China
Abstract :
Brushless DC machine (BLDCM) is very appropriate for driving flywheel energy storage system (FESS) for wind energy applications due to its high torque, high efficiency and wide speed range. To store and release more energy, a novel control strategy combining bipolar and unipolar controls based on a converter with neutral point controlling bridge arm is proposed. The freewheeling current in the nonenergized phase is eliminated by series-opposing transistors in each half bridge. The mathematical model of the FESS containing a BLDCM and an improved converter is established and the proposed control strategy is then simulated by Matlab/Simulink. The simulation results verify the correctness and the effectiveness of the designed converter as well as the proposed control strategy.
Keywords :
DC machines; brushless machines; flywheels; machine control; mathematical analysis; power convertors; power generation control; wind power plants; BLDCM; FESS; Matlab-Simulink simulation; bipolar control strategy; brushless DC machine; converter; flywheel energy storage system; mathematical model; neutral point controlling bridge arm; series-opposing transistor; unipolar control strategy; wind energy application; Bipolar; brushless DC machine; control strategy; flywheel energy storage; unipolar;
Conference_Titel :
Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on
Conference_Location :
Manchester
Electronic_ISBN :
978-1-84919-815-8
DOI :
10.1049/cp.2014.0379
