Method and systems for operating a wind turbine
First Claim
1. A method for controlling operation of a wind turbine included within a power generation and delivery system, the wind turbine comprising a rotor comprising a plurality of rotor blades, an electrical generator, a power converter, and a controller, said method comprising:
- measuring at least one operating condition of the power generation and delivery system, the operating condition including a phase locked loop (PLL) error that is dependent upon an occurrence of a grid contingency event;
transmitting, to a power limiter system, an operating condition feedback signal that corresponds to the operating condition;
analyzing, using the power limiter system, the operating condition feedback signal to identify an occurrence of a grid contingency event responsive to the PLL error being above a predefined level;
generating, using the power limiter system, a power command signal corresponding to an occurrence of a grid contingency event;
transmitting the power command signal to the controller;
controlling operation of the power converter based at least partially on the power command signal; and
,storing, in a memory, at least one variable corresponding to said at least one operating condition upon the occurrence of a grid contingency event to facilitate determining whether power generation and delivery system is operating properly.
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Accused Products
Abstract
A method for controlling operation of a wind turbine included within a power generation and delivery system is described. The method includes measuring at least one operating condition of the power generation and delivery system. The method also includes transmitting, to a power limiter system, an operating condition feedback signal that corresponds to the operating condition. The method also includes analyzing the operating condition feedback signal to identify an occurrence of a grid contingency event and generating a real current command signal corresponding to an occurrence of a grid contingency event. The method also includes transmitting the real current command signal to a controller and applying the real current command signal to power converter performance to facilitate reducing pole-slipping. The method also includes storing, in a memory, at least one variable corresponding to the operating condition upon the occurrence of a grid contingency event.
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Citations
13 Claims
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1. A method for controlling operation of a wind turbine included within a power generation and delivery system, the wind turbine comprising a rotor comprising a plurality of rotor blades, an electrical generator, a power converter, and a controller, said method comprising:
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measuring at least one operating condition of the power generation and delivery system, the operating condition including a phase locked loop (PLL) error that is dependent upon an occurrence of a grid contingency event; transmitting, to a power limiter system, an operating condition feedback signal that corresponds to the operating condition; analyzing, using the power limiter system, the operating condition feedback signal to identify an occurrence of a grid contingency event responsive to the PLL error being above a predefined level; generating, using the power limiter system, a power command signal corresponding to an occurrence of a grid contingency event; transmitting the power command signal to the controller; controlling operation of the power converter based at least partially on the power command signal; and
,storing, in a memory, at least one variable corresponding to said at least one operating condition upon the occurrence of a grid contingency event to facilitate determining whether power generation and delivery system is operating properly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power generation and distribution system comprising:
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an electric generator; a power conversion assembly coupled to said electric generator and a utility grid, said power conversion assembly configured to receive power generated by said electric generator and convert the power received to a power suitable for transmission over the utility grid; and
,a power limiter system communicatively coupled to said power conversion assembly and configured to provide a power control signal based at least partially on at least one measured indicator of a grid contingency event to said power conversion assembly, said power limiter system receiving a phase locked loop (PLL) error signal and identifying an occurrence of a grid contingency event based at least partially on the PLL error signal, said power limiter system comprising a memory configured to store at least one variable that corresponds to the PLL error signal responsive to an occurrence of the grid contingency event. - View Dependent Claims (11, 12, 13)
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Specification