Energy storage apparatus

摘要

Improved energy storage apparatus that is compact and less expensive is disclosed. High-voltage lines are no longer required, and heat energy can be simply dissipated from each storage module in the apparatus. A switchable inductive balancing element is electrically connected in parallel with each storage cell in each storage module, through which energy or electrical charge can be shifted among the individual storage cells in each storage module using suitably designed magnetic circuits. A power resistor and a module switch are electrically connected in parallel with the series circuit formed by the storage cells in of each storage module and the switchable inductive cell balancing elements in each module are magnetically coupled to a single switchable inductive module balancing element in the module, or each is magnetically coupled to a switchable inductive balancing element of a respective transformer.

主权项

1. Energy circuit apparatus comprising:
at least two storage modules, said modules being electrically connected in a series circuit, said modules each having a multiplicity of storage cells that are electrically connected in series; a switched inductive storage cell element having an inductive storage cell element and a cell switch connected in series, each of said storage cells having an inductive storage cell element connected in parallel with it; at least one inductive storage module element electrically connected in parallel with the series circuit formed by the storage cells in each storage module; a coupling element magnetically coupling respective switched inductive storage elements to at least one inductive storage module element; and a switched power resistor element having a power resistor and a module switch electrically connected in parallel with the series circuit formed by the storage cells of each storage module.