Patent ID: 7002260

Claim:
A power control device adapted to be coupled between a power output of an unstable power source such as a wind farm and a power transmission line, comprising: (a) an electrical energy storage coupled between the unstable power source and the power transmission line to store excess power output from the unstable power source as stored electrical energy when it is above an expected output level, and to release stored electrical energy to add power output to the power transmission line when the power output of the unstable power source is below its expected output level; (b) an electronic controller module coupled to the electrical energy storage which receives a power source data signal derived from monitoring the power output of the unstable power source and generates controller signals for controlling the electrical energy storage indicating when excess power output from the unstable power source above its expected output level is to be stored as electrical energy in the electrical energy storage, and when electrical energy stored in the electrical energy storage is to be released to add power to the power output to the power transmission line.