Title :
Power conditions and control of a regenerative brake
Author :
Blasko, Vladimir
Author_Institution :
Stand. Drives Dev., Rockwell Autom., Mequon, WI, USA
Abstract :
Braking capability is typically accomplished by adding a dynamic/resistive brake (DB) module to a standard drive. Regenerating energy is dissipated in the braking resistor creating heat and decreasing the overall efficiency of the drive. To overcome the shortcomings of the DB solution, a regenerative brake (RB) was developed. The RB is a stand-alone, add-on unit to the drive. It operates with single or multiple drives sharing common DC and AC buses. The power rating of the brake is usually smaller than power rating of the drive(s). A robust and simple solution of control of RB with analysis of power conditions is provided in the paper. The total harmonic distortion (THD) of the current during regeneration of the drive is comparable with the THD of current during motoring. The theoretical results of the analysis are experimentally verified.
Keywords :
control system analysis; harmonic distortion; induction motor drives; machine control; machine testing; machine theory; power conversion harmonics; regenerative braking; robust control; time-domain analysis; AC buses; DC buses; control simulation; current THD; induction motor drive; power rating; regenerative brake; robust control scheme; total harmonic distortion; Bridge circuits; Converters; Diodes; Drives; Insulated gate bipolar transistors; Power conversion; Resistors; Robust control; Standards development; Voltage;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.730341
