Power line system with ripple generator for electric vehicles
AssigneeABB Schweiz AG
InventorsAdam Ruszczyk, Rafal Jackowicz, Nicolae Stefan Preda
Life of this patent
Estimating the term…
Abstract
A power line system is provided for efficiently using excess electrical energy produced by electric vehicles in a generation mode. A power line detector on the vehicle senses the power line to determine if voltage ripples are present before supplying excess electrical energy from the vehicle to the power line. First voltage ripples are generated on the line by a substation providing power to the power line. Second voltage ripples are also generated on the power line by a ripple generator to allow excess energy from the vehicle to be supplied to the power line in order to charge an energy storage system.
Claims20
A power line system for one or more electric vehicles, comprising:
- a power line extending along a travel length;
- the electric vehicles being connected to the power line such that the electric vehicles are adapted to draw power from the power line while traveling along the travel length, the electric vehicles being alternatively operable in an energy recuperation mode to supply power to power line;
- a substation connected to the power line and supplying power to the power line, the power supplied to the power line by the substation being characterized by first ripples;
- an energy storage system connected to the power line and receiving power from the power line;
- a ripple generator connected to the power line and generating second ripples on the power line;
- and
- each of the electric vehicles comprising a power line detector sensing the first and second ripples, wherein the electric vehicles do not operate in the energy recuperation mode if the power line detector does not sense either the first ripples or the second ripples, the electric vehicles being operable in the energy recuperation mode if the power line detector senses the first and/or second ripples.
Dependencies are inferred from the claim text.