Abstract: A method, system and computer program product enhance the commercial value of electrical power produced from a wind turbine production facility. Features include the use of a premier power conversion device that provides an alternative source of power for supplementing an output power of the wind turbine generation facility when lull periods for wind speed appear. The invention includes a communications infrastructure and coordination mechanism for establishing a relationship with another power production facility such that when excess electrical power is produced by the wind turbine facility, the excess may be provided to the power grid while the other energy production facility cuts back on its output production by a corresponding amount. A tracking mechanism keeps track of the amount of potential energy that was not expended at the other facility and places this amount in a virtual energy storage account, for the benefit of the wind turbine facility.

Abstract: A distributed power generation system (100) has at least two distributed power sources (104) connected to a point of connection (150) to a power utility network by interconnections, and is provided with a system protection scheme. The system protection scheme comprises at least three system protection terminals (18). One system protection terminal (18A) is located in the vicinity of the point of connection (150), while two others (18B-E) are located in the vicinity of one power source (104) each. The system protection terminals (18) are interconnected by a communication system (22), using a substantially dedicated communication resource. The system protection terminals (18) are equipped to measure characteristics of the power system at that particular location, preferably complex ac quantities and stability indicators. The measurements are spread to other system protection terminals (18).

Abstract: The present invention discloses a system protection scheme comprising of at least two system protection terminals (18), introduced at suitable locations in an electric power system (1). The system protection terminals (18) are interconnected by a communication system (22), preferably using a substantially dedicated communication resource. At least-two of the system protection terminals (18) are equipped to collect measurement signals (72) associated with time stamped voltage or current values of the power system at that particular location or quantities derivable therefrom. The measurements are evaluated and related data is spread to other system protection terminals (18). At least one of the system protection terminals (18) is equipped to evaluate the existence of poorly damped power oscillations in the power network and if necessary provide control signals (74) to power system actuating units. The evaluation is preferably based on changes in the node angle differences between the measurement locations.