In one embodiment, a plant control apparatus controls a power plant, which includes a gas turbine, a generator driven by the gas turbine, an exhaust heat recovering boiler to generate first steam using heat of exhaust gas from the gas turbine, a steam turbine driven by the first steam, and a clutch to connect a first shaft connected to the gas turbine and generator with a second shaft connected to the steam turbine. The apparatus includes a starting module to start the gas turbine and generator while holding the steam turbine in a stop state, when the clutch is in a released state. The apparatus further includes a warming module to warm the steam turbine by supplying second steam from equipment different from the boiler to the steam turbine in parallel with the starting of the gas turbine and generator, when the clutch is in a released state.

In one embodiment, a plant control apparatus controls a power plant, which includes a gas turbine, a generator driven by the gas turbine, an exhaust heat recovering boiler to generate first steam using heat of exhaust gas from the gas turbine, a steam turbine driven by the first steam, and a clutch to connect a first shaft connected to the gas turbine and generator with a second shaft connected to the steam turbine. The apparatus includes a starting module to start the gas turbine and generator while holding the steam turbine in a stop state, when the clutch is in a released state. The apparatus further includes a warming module to warm the steam turbine by supplying second steam from equipment different from the boiler to the steam turbine in parallel with the starting of the gas turbine and generator, when the clutch is in a released state.

A single shaft combined cycle power plant includes a shaft on which is sequentially located, a gas turbine, a medium pressure steam turbine, a low pressure steam turbine, a generator, and a high pressure steam turbine, wherein the gas turbine and the high pressure steam turbine are at opposite ends of the shaft.

A single shaft combined cycle power plant includes a shaft on which is sequentially located, a gas turbine, a medium pressure steam turbine, a low pressure steam turbine, a generator, and a high pressure steam turbine, wherein the gas turbine and the high pressure steam turbine are at opposite ends of the shaft.

A condenser system for steam turbine systems having different loads is disclosed. The condenser system includes a selectively sized outer casing having a variably sized heat exchanger end and an input end for coupling to a steam turbine (ST) system. A condensate vessel sidewall of the casing is positionally uniform relative to the ends regardless of the size of the heat exchanger, and a cooling water sidewall has a position dependent on heat exchanger size.

By using an accumulator which is charged by a generator upon starting up a steam turbo set, the steam turbo set can be started up more quickly. Energy generation plant, which has at least: a steam turbine and a generator, wherein the generator can be driven at least by the steam turbine, and optionally a gas turbine, which also the generator can drive, the generator electricity for electrical and can generate networks, with an electrical storage device, in particular an accumulator, which can optionally be connected to the generator in order to be charged, in particular when the generator is not connected to the electrical network.

By using an accumulator which is charged by a generator upon starting up a steam turbo set, the steam turbo set can be started up more quickly. Energy generation plant, which has at least: a steam turbine and a generator, wherein the generator can be driven at least by the steam turbine, and optionally a gas turbine, which also the generator can drive, the generator electricity for electrical and can generate networks, with an electrical storage device, in particular an accumulator, which can optionally be connected to the generator in order to be charged, in particular when the generator is not connected to the electrical network.

A system for power generation, comprises piping for carrying a high density pressurized gas, the piping forming a closed loop and having an inlet for receiving the pressurized gas, one or more velocity and pressure enhancers connected along the piping and a turbomachinery assembly connected along the piping. The piping is adapted to receive the pressurized gas via the inlet and recirculate the pressurized gas inside the closed loop. The one or more velocity and pressure enhancers are configured to be operated with one or more of electrical power, hydraulic power and pneumatic power, to maintain flow and velocity of the pressurized gas, inside the closed loop. Also, the turbomachinery assembly is configured to generate mechanical power from kinetic energy and mass flow of the pressurized gas.

In a combined cycle plant, a device for controlling a combined cycle plant, and a method for starting up a combined cycle plant, the time for starting up the combined cycle plant can be shortened by providing: a gas turbine having a compressor, a combustor, and a turbine; a heat recovery steam generator for generating steam by means of the exhaust heat of exhaust gas from the gas turbine. A steam turbine is driven by the steam generated by the heat recovery steam generator; and a control device is configured to set a standby load for the gas turbine during a start-up continuously to change in accordance with a change in metal temperature of the steam turbine.

In a combined cycle plant, a device for controlling a combined cycle plant, and a method for starting up a combined cycle plant, the time for starting up the combined cycle plant can be shortened by providing: a gas turbine having a compressor, a combustor, and a turbine; a heat recovery steam generator for generating steam by means of the exhaust heat of exhaust gas from the gas turbine. A steam turbine is driven by the steam generated by the heat recovery steam generator; and a control device is configured to set a standby load for the gas turbine during a start-up continuously to change in accordance with a change in metal temperature of the steam turbine.