Patent attributes
A regeneration energy shunt system utilizes a module to monitor the power bus voltage and can divert excess regeneration energy to a resistor array to dissipate the excess regeneration energy. The module can monitor the state of charge of an energy storage device to ascertain when excess regeneration energy condition exists. The resistor array can include a plurality of resistors. The module can ascertain the number of resistors needed dissipate the excess regeneration energy and selectively direct the excess regeneration energy to the required number of resistors. The module can dynamically switch which resistors are used to dissipate the excess regeneration energy and can thereby even out the loading across the resistors. The module can ascertain a state of health of the individual resistors and remove unhealthy resistors from service, report the state of health of the resistors, and initiate changes in operation based thereon.
