Patent ID: 7966102
Filing Date: 2011-06-21
Classification: F01K,H02J,Y02E

Abstract:
1. A method of block loading at least one power plant, the method comprising: providing a block loading system on at least one power plant, wherein the at least one power plant comprises at least one gas turbine, at least one steam turbine, and at least one heat recovery steam generator; determining whether the at least one power plant is in a black start condition, wherein the at least one power plant is electrically disconnected from a grid; determining whether at least one block loading permissive of the block loading system is satisfied; exporting power to the grid to load a first block, wherein the power is generated by the at least one power plant; determining whether at least one stabilization permissive of the block loading system is satisfied; and automatically adjusting a gas turbine load control loop from a first gas turbine loading loop to a second gas turbine loading loop; and automatically adjusting a steam turbine load control loop from a first steam turbine loading loop to a second steam turbine loading loop; wherein the second gas turbine loading loop and the second steam turbine loading loop allow for the at least one steam turbine to provide primary speed control of the at least one power plant, when the at least one steam turbine is in use; and wherein the block loading system allows for the at least one steam turbine to primarily control the frequency while exporting power to the grid.