Patent application number | Description | Published |
20100058730 | GAS TURBINE POWER GENERATION SYSTEM AND METHOD OF DETECTING CALORIFIC ABNORMALITY OF THE SAME - A variation in calorific value is detected using existing measurement values, without using a measurement device such as a calorimeter. An allowable variation range of a gas turbine power generation output with respect to a charged fuel amount or an allowable variation range of a charged fuel amount with respect to a gas turbine power generation output is set from a relation between the fuel amount charged to the combustor of the gas turbine and the gas turbine power generation output when the fuel gas calorific value is constant, and a calorific abnormality is detected when an actually charged fuel amount or an actual gas turbine power generation output falls outside the allowable variation range. | 03-11-2010 |
20100192572 | CLOSED-CYCLE PLANT - The objects are to provide easy maintenance/inspection and to rapidly achieve stable start-up of a plant. Provided is a closed-cycle plant including a high-temperature gas-cooled reactor having a nuclear reactor; a gas turbine that is driven by working fluid heated in the high-temperature gas-cooled reactor; a low-pressure compressor and high-pressure compressor that are linked coaxially with the gas turbine; a power generator connected to the gas turbine through an output shaft; and a power supply unit that is connected to the power generator in a disconnectable manner and supplies electric power, wherein, at startup, the power supply unit is connected to the power generator and electric power is supplied so as to make the speed-up ratio of the power generator constant. | 08-05-2010 |
20100198419 | GAS TURBINE OPERATION CONTROL DEVICE AND OPERATION CONTROL METHOD - Provided is a gas turbine operation control device and operation control method that are capable of suppressing turbine inlet temperature and of satisfying the demand response for shaft output. An IGV emergency fully-open flag is activated when the output of a generator is in a high load band at or above a predetermined value, and the like. When the IGV emergency fully-open flag is activated, the degree of opening of an inlet guide vane is set to a predetermined degree of opening, a temperature adjustment setting is set by switching in accordance with the degree of opening of the inlet guide vane, and an exhaust gas temperature setting value or a blade path temperature setting value of a turbine, for controlling the fuel supply amount for a combustor, is generated based on the temperature adjustment setting. | 08-05-2010 |
20100269515 | GAS TURBINE CONTROL METHOD AND GAS TURBINE POWER GENERATING APPARATUS - An object is to reduce a fluctuation in the gas-turbine output in a nozzle switching period. In the nozzle switching period during which a first nozzle group that has been used is switched to a second nozzle group that is going to be used, the amounts of fuel supplied through the first nozzle group and the second nozzle group are adjusted by using at least one adjustment parameter registered in advance, the adjustment parameter registered in advance is updated according to the operating condition of the gas turbine, and the updated adjustment parameter is registered as an adjustment parameter to be used next. | 10-28-2010 |
20110027066 | METHOD OF CONTROLLING TURBINE EQUIPMENT AND TURBINE EQUIPMENT - To provide a method of controlling a turbine equipment and a turbine equipment capable of carrying out a starting operation of controlling a load applied to a speed reducing portion while complying with a restriction imposed on an apparatus provided at a turbine equipment. The invention is characterized in including a temperature elevating step (S | 02-03-2011 |
20110044794 | METHOD OF CONTROLLING TURBINE EQUIPMENT AND TURBINE EQUIPMENT - To provide a method of controlling a turbine equipment and a turbine equipment capable of carrying out a starting operation of controlling a load applied to a speed reducing portion while complying with a restriction imposed on an apparatus provided at a turbine equipment. The invention is characterized in including a speed accelerating step (S | 02-24-2011 |
Patent application number | Description | Published |
20120177481 | GAS TURBINE - This gas turbine includes a turbine cooling structure of cooling a turbine by using cooling air and a filter that reduces dust in the cooling air on an upstream side of the turbine. Furthermore, the gas turbine includes a supply pipe for supplying the cooling air to the filter, a branch pipe that is branched from the supply pipe on an upstream of the filter, and a unit that calculates or estimates a circulation amount of dust in the cooling air. In this gas turbine, at a time of start-up of a turbine, the supply pipe is closed and the branch pipe is opened, and when the circulation amount of dust in the cooling air becomes equal to or less than a predetermined threshold, the supply pipe is opened and the branch pipe is closed. | 07-12-2012 |
20130147208 | GAS TURBINE CONTROL DEVICE AND GENERATING SYSTEM - Provided is a gas turbine control device that is used in a generating facility including a gas turbine and a generator for generating power when at least rotational power of the gas turbine is transmitted, the gas turbine control device including a first control section for obtaining a first fuel control command for causing generator output to follow a generator output set value decided based on a demand load, where the first control section has a feedback control section ( | 06-13-2013 |
20140230449 | VALVE CONTROL DEVICE, GAS TURBINE, AND VALVE CONTROL METHOD - A valve control device is provided in a gas turbine having a combustor for generating combustion gas, a turbine driven by the combustion gas generated by the combustor, a flow rate regulating valve for regulating the flow rate of the fuel to be supplied to the combustor, and a pressure regulating valve disposed upstream of the flow rate regulating valve, for regulating the fuel pressure. The valve control device controls the opening degree of the valve. The valve control device includes a load decrease detection part which detects a load decrease of the gas turbine, and a pressure control part which controls the opening degree of the valve in accordance with the output of the gas turbine. The valve control device suppresses instability of the gas turbine output even when the load rapidly decreases. | 08-21-2014 |
20140244358 | NEED DETERMINATION DEVICE, NEED DETERMINATION METHOD, AND NEED DETERMINATION PROGRAM - In an aspect of the present invention, a need determination device includes a storage unit configured to store survey data in which an assessment value of a quantitatively or qualitatively assessable survey item is set at each textbook that is the same type as an object of which needs are to be determined, and need assessment data in which an assessment value of a need is set at each of the textbooks; a determination logic generation unit configured to generate a determination logic for determining a need based on the survey data and the need assessment data; and a determination unit configured to determine a need of the object by applying, to the determination logic, input data in which the assessment value of the survey item of the object of which needs are to be determined is set. | 08-28-2014 |
20140360188 | SOLAR THERMAL POWER GENERATION FACILITY AND METHOD OF STARTING UP SAME - A solar thermal power generation facility is provided with turbine bypass piping ( | 12-11-2014 |