Title :
Control methods of a cascade power regulation system for smart grid
Author :
Wan, C.K. ; Yang, G. ; Geng, H. ; Zhang, T.S.
Author_Institution :
Corp. of DongFang Hitachi (CD) Electr. Control Equip. Co. Ltd., Chengdu, China
Abstract :
Power regulation system (PRS) is necessary to mitigate the power fluctuation and stabilize the voltage for smart grid. This paper proposes a method to balance the DC link voltage of H-bridge cascade PRS. The unbalance of the PRS is mainly due to the different input/output currents in each battery bank units. The balancing control is based on the negative sequence voltage injection concept. The control algorithm is analyzed and the experimental results verify the effectiveness of the method.
Keywords :
cascade control; power system stability; reactive power control; smart power grids; DC link voltage; H-bridge cascade PRS; balancing control; battery bank units; cascade power regulation system control methods; input-output currents; negative sequence voltage injection concept; power fluctuation; smart grid; voltage stabilization; Automatic voltage control; Bridge circuits; Control systems; Educational institutions; Energy storage; Reactive power; DC link voltage balancing; H-bridge cascade converter; negative sequence voltage injection; power regulation system;
Conference_Titel :
Innovative Smart Grid Technologies Asia (ISGT), 2011 IEEE PES
Conference_Location :
Perth, WA
Print_ISBN :
978-1-4577-0873-2
Electronic_ISBN :
978-1-4577-0874-9
DOI :
10.1109/ISGT-Asia.2011.6167139
