Patent
Gas turbine apparatus and method of operating same on gaseous fuel
TLDR
In this paper, when an abrupt load variation occurs in a centrifugal compressor which increases pressures of a fuel such as city gas or liquefied natural gas to feed the fuel, a gas turbine control device effects a control so that a discharge pressure can be kept to within a predetermined pressure range.Abstract:
In a gas turbine apparatus including a turbine stage and a compressor stage, when an abrupt load variation occurs in a centrifugal compressor which increases pressures of a fuel such as city gas or liquefied natural gas to feed the fuel, a gas turbine control device effects a control so that a discharge pressure of the centrifugal compressor can be kept to within a predetermined pressure range. When a fuel flow demand for the centrifugal compressor is inputted to the gas turbine control device, a signal corresponding to this fuel control signal is inputted to a bypass valve of the centrifugal compressor simultaneously when it is inputted to gas turbine fuel control valves provided in the gas turbine apparatus. When the load is abruptly varied, the degree of opening of the bypass valve of the centrifugal compressor is changed to a value determined by a prestored relation between the fuel control signal and the degree of opening of the bypass valve.read more
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Patent
Control system for gas-turbine engine
TL;DR: In this paper, a system for controlling a gas-turbine engine having a combustor which generates a combustion such that resulting combustion gas rotates a turbine that is connected to the compressor, and a load such as a generator to drive the compressor and the generator.
Patent
Modular fuel conditioning system
TL;DR: In this paper, a programmable logic controller collects data from all of the stations and systems as well as the turbine and then uses self-correcting algorithms to control the stations.
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TL;DR: In this paper, a microturbine power generating system is described, which includes a combustor for combusting a gaseous fuel to provide a supply of heat energy.
Patent
Gas-turbine power generating installation and method of operating the same
TL;DR: In this paper, a gas-turbine power generating installation capable of effectively utilizing gases produced in overage gas fields, etc. and a method of operating the installation are provided, where air compressed by a compressor is introduced to a combustor for combustion after being mixed with fuel, and a power generator is driven by motive power obtained from a rotary shaft of the gas turbine.
Patent
System for controlling acceleration of a load coupled to a gas turbine engine
TL;DR: In this paper, a system and method of controlling the acceleration of a load driven by a gas turbine engine detects the existence of an overload condition and reduces an acceleration setpoint when such condition arises.
References
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Patent
Pressure control unit for compressor
TL;DR: In this paper, a bypass valve is installed in a bypass line to control the valve opening in proportion to the consumption of compressed air at the loaded side of a compressor, which is capable of non-surge control, however, it is also capable of controlling the airflow in a low flowing range.
Patent
Control valve operation method for turboocompressor
Hasegawa Kazumi,Mogi Kiyoyuki +1 more
TL;DR: In this article, the authors proposed an operation wherein when opening of a suction control valve is out of the range (i.e., the range without the menace of ocurring surging), the valve is operated at faster speed, and when opening is within the above mentioned range, the valve was operated at slower speed, at the switching operation from negative load to no load condition.
Patent
Automatic load control device of centrifugal compressor
TL;DR: In this article, a blow-off control valve is used to prevent surging by returning a part of compressed air to an outlet line of a centrifugal compressor or by blowing-off it.
Patent
Capacity controller for turbocompressor
TL;DR: In this paper, a capacity controller for controlling each flow rate of compressors 1A, 1B and 1C according to the demand of loads 1, 2 and C is constituted of a master control system 4 and minor control systems 5A, 5B and 5C.