Patent ID: 11919417
Assignee: DR. ING. H. C. F. PORSCHE AG
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A load management system for managing loads present in a power distribution grid, said load management system comprising:
a control unit;
at least three current transformers that are each connected to the control unit by a signal cable; and
a power-generating device connected to a supply line for the power distribution grid, wherein the power-generating device is a renewable power source for at least one charging station of the power distribution grid,
wherein:
a first current transformer of the at least three current transformers is arranged in the power distribution grid such that said first current transformer is configured for measuring a current level in a three-phase grid connecting line of the power distribution grid, said three-phase grid connecting line is-being connected to a power supply company,
a second current transformer of the at least three current transformers is arranged in the power distribution grid such that said second current transformer is configured for measuring a current level in a first power line of the power distribution grid, said first power line feeding the at least one charging station of the power distribution grid,
a third current transformer of the at least three current transformers is arranged in the power distribution grid and configured for measuring a current level in a second supply line for the power distribution grid, said second supply line being connected to the power-generating device via the third current transformer, and being configured to feed the at least one charging station of the power distribution grid as a primary power source,
wherein the control unit is configured to:
detect which individual phase of the three-phase grid connecting line supplies power to the at least one charging station of the power distribution grid by supplying a predetermined current level on a specific phase of the three-phase grid connecting line and measuring a reduced predetermined current level on the specific phase.