| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a controller for a combined cycle power plant capable of stably and safely controlling respective generators even when isolated operation occurs in the plant and assuring a power source in the plant. SOLUTION: The combined cycle power plant has a plurality of generator shafts for outputting power generated by the generators run by turbine outputs and outputs the power of the shafts to a system bus through a system circuit breaker. The plant comprises a plant load deciding unit 12 for judging a plant load necessary for the isolated operation according to the use state of the plant and deciding the number of the shafts for the plant load, a plant isolated operation deciding unit 13 for judging a transfer from the state of the system circuit breaker to the isolation operation, and an operation/parallel-off deciding unit 14 for deciding the operation continuation and a parallel-off shaft in response to the number of the shafts decided by the load deciding unit. Thus, the turbine output of the shaft corresponding to the decided result of the unit 14 is controlled by the transfer judgement of the unit 13 to the isolated operation.</p> |
