초록 ▼

The object of the invention is to provide an electric power plant and a control apparatus therefor which can obtain an emergency power supply reliably through use of the turbine starter. Another generator different from the main generator coupled to the rotor shaft of the turbine is provided to the

The object of the invention is to provide an electric power plant and a control apparatus therefor which can obtain an emergency power supply reliably through use of the turbine starter. Another generator different from the main generator coupled to the rotor shaft of the turbine is provided to the input side of the starter via a motor, and a control apparatus is provided for electrically connecting the starter and the generators responsive to a bus voltage from the in-house power supply unit which supplies electricity to a plurality of auxiliary equipment operating in the electric power plant. Thereby, an emergency power supply can be obtained reliably by the simple configuration of the invention without installing emergency power generation facilities such as a diesel engine, gas turbine or the like. In addition, an LCI device which has been utilized only at the time of turbine start up can be utilized advantageously also at the time of emergency when the in-house power supply is lost.

대표청구항 ▼

[ We claim:] [1.] In a power generation plant having a turbine, a first generator coupled to a rotor shaft of said turbine, a starter device connected to said first generator via a disconnecting switch for outputting a power by converting the frequency of an input electric power, auxiliary equipment

[ We claim:] [1.] In a power generation plant having a turbine, a first generator coupled to a rotor shaft of said turbine, a starter device connected to said first generator via a disconnecting switch for outputting a power by converting the frequency of an input electric power, auxiliary equipment for assisting operation of said turbine, and an in-station power supply unit for supplying power to said auxiliary equipment utilizing power produced by said first generator, the power generation plant further comprising:a motor electrically connected to said starter device;an emergency generator connected to said motor; anda control unit which executes switching control of said disconnecting switch in response to an output voltage of said in-station power supply unit, wherebypower is obtained from said first generator utilizing inertial rotational energy of said turbine, said power obtained from said first generator is supplied to said motor via said starter device for driving said motor, and said emergency generator is started.