Power management system for wind turbine(s) being connected to a power supply with a limited capacity
AssigneeVestas Wind Systems A/S
InventorNiels Erik Danielsen
Life of this patent
Estimating the term…
Abstract
The invention relates to a power management system for one or more wind turbines where the one or more wind turbines are connected to a power supply with a limited capacity for providing power to a number of power consuming units, such as to an emergency power supply arranged for providing power in a grid loss situation. The power management system comprises a dispatcher connected to the power supply to access an available capacity of the power supply, and a requester connected to at least one power consuming unit, the requester being arranged to control the power consumption of the power consuming unit by either allows or deny the power consuming unit to consume power.
Claims20
A power management system for one or more wind turbines connected to a power supply with a limited capacity, the one or more wind turbines comprising one or more power consuming units, wherein the power management system comprises:
- a dispatcher connected to the power supply and configured to:
- access an available capacity of the power supply;
- determine a base load for the power supply that is applied to requests for power consumption from the one or more power consuming units, wherein the base load is less than the available capacity;
- and
- based on the available capacity, determine whether to allow or deny the requests for power consumption to be fulfilled by the power supply;
- and
- a requester connected to the one or more power consuming units, the requester configured to:
- receive a first request for power consumption from a first power consuming unit of the one or more power consuming units;
- receive information from the dispatcher about the base load;
- compare the first request with the base load;
- allow, without forwarding the first request to the dispatcher, the first request to be fulfilled by the power supply when the first request does not exceed the base load;
- and
- forward the first request to the dispatcher when the first request exceeds the base load.
A method of power management of one or more wind turbines connected to a power supply with a limited capacity, the one or more wind turbines comprising one or more power consuming units, the method comprising:
- receiving an instruction to operate a first power consuming unit of the one or more power consuming units;
- determining an amount of power for operating the first power consuming unit;
- determining, using information received from a dispatcher connected to the power supply, a base load for the power supply up to which the first power consuming unit is allowed to consume power from the power supply without forwarding a request to the dispatcher, wherein the base load is less than an available capacity of the power supply;
- comparing the amount of power with the base load;
- and
- responsive to determining the amount of power does not exceed the base load, allowing the first power consuming unit to consume the amount of power.
A wind turbine system comprising:
- one or more wind turbines connected to a power supply with a limited capacity, wherein the one or more wind turbines comprise one or more power consuming units;
- and
- a power management system comprising:
- a dispatcher connected to the power supply and configured to:
- access an available capacity of the power supply;
- determine a base load for the power supply that is applied to requests for power consumption from the one or more power consuming units, wherein the base load is less than the available capacity;
- and
- based on the available capacity, determine whether to allow or deny the requests for power consumption to be fulfilled by the power supply;
- and
- a requester connected to the one or more power consuming units, the requester configured to:
- receive a first request for power consumption from a first power consuming unit of the one or more power consuming units;
- receive information from the dispatcher about the base load;
- compare the first request with the base load;
- allow, without forwarding the first request to the dispatcher, the first request to be fulfilled by the power supply when the first request does not exceed the base load;
- and
- forward the first request to the dispatcher when the first request exceeds the base load.
Dependencies are inferred from the claim text.