About 33 results
https://drivepatents.com/patents/1000842 · 4 Jul 2012
The present invention discloses a method for controlling a back-to-back converter when disturbances are produced in the grid which limit the capacity of the converter (105) on the side of the grid to control the voltage of the DC stage (106). In that event...
https://drivepatents.com/patents/1004041 · 28 Mar 2012
An object of the invention is to enable a control on active power according to a request of a utility grid. In a case where a request for changing a maximum value of active power and a newly defined maximum value of active power are received from the utili...
https://drivepatents.com/patents/1006914 · 21 Dec 2011
It is described an electric power control system comprising: a first node (205) to which plural power production entities (204) are connectable for combining their power output signals as a first power signal; a transformer (219) adapted to transform the f...
https://drivepatents.com/patents/1007327 · 7 Dec 2011
The object of the present invention is a process for controlling the active power injected into the grid by a generating plant for contributing to the stability of the power grid in the event of frequency variations wherein in response to a deviation in gr...
https://drivepatents.com/patents/1011715 · 22 Jun 2011
A grid-dependent power limiter system (152) for reducing pole-slipping is described. The system includes a power limiter (180) configured to receive at least one of a phase locked loop (PLL) error signal (190) and a terminal grid voltage feedback signal (1...
https://drivepatents.com/patents/1014104 · 6 Apr 2011
A power generation system 40 having a wind turbine blade assembly 42, a generator 43 mechanically coupled to the blade assembly, and a power converter 44 coupled to the generator is provided. An energy storage device 54 and a bidirectional converter 56 cou...
https://drivepatents.com/patents/1015409 · 2 Mar 2011
The wind turbine, under normal operating conditions, delivers generated electricity to the grid which is proportional to the wind speed. In the event of a fault in the grid, the wind turbine remains connected and delivers electricity at a lower power level...
https://drivepatents.com/patents/1015645 · 23 Feb 2011
The method involves regulating the power delivered to a network (6) from an electrical generator driven by a rotor (4) depending on the electrical voltage applied to the network. The generator output power delivered to the network is regulated depending on...
https://drivepatents.com/patents/1015828 · 16 Feb 2011
Operating method for at least a wind turbine with a rotor and an electricity generator coupled to the rotor for output of electrical power to an energy distribution network. Power output is controlled with a control arrangement that ensures the turbine ope...
https://drivepatents.com/patents/1015898 · 9 Feb 2011
The present invention relates to a method of operating of a wind power plant comprising a circuit breaker and at least one wind turbine generator electrically connectable to an electrical grid through said circuit breaker, the method comprising the steps o...