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公开(公告)号：US11814963B2
公开(公告)日：2023-11-14
申请号：US17844824
申请日：2022-06-21
申请人： Argyle Earth, Inc
发明人： Christopher McMillan
CPC分类号： F01C20/24 , F01C21/06 , F01C21/18 , F01K23/101
摘要： Systems and methods for a heat engine system are described. In one embodiment, a system comprises a heat engine compressor, a heat exchanger, and a heat engine expander. The system comprises a partial state condenser in fluid communication with the heat engine expander. The partial state condenser includes a sense reservoir to hold the working fluid, a reservoir sensor to sense an electrical property of the working fluid, and a reservoir valve. The reservoir valve is in fluid communication with the sense reservoir, the heat engine compressor, and a heat engine condenser. The system comprises a processor to execute instructions to determine a specific energy of working fluid based on the electrical property of the working fluid and control the reservoir valve based on the specific energy to maintain a two-phase saturated state point within the partial state condenser based on the electrical property.
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公开(公告)号：US11655736B2
公开(公告)日：2023-05-23
申请号：US17170266
申请日：2021-02-08
CPC分类号： F01K17/025 , F01K17/00 , F01K23/10 , F01K23/101 , Y02E20/14 , Y02E20/16
摘要： A CCPP includes a gas turbine, a HRSG, a steam turbine a flash tank and first and second supply lines. The gas turbine, the HRSG and the steam turbine are interconnected to generate power. The gas turbine may include an air preheating system to preheat the air supplied in the gas turbine to enable expedite combustion therein. The flash tank is fluidically connected at a cold end of the HRSG to extract waste hot water from the cold end. Further, the first supply line is configured to interconnect the flash tank and the steam turbine to supply of flash steam to the steam turbine. Furthermore, the second supply line is configured to interconnect the flash tank and the air preheating system to supply hot flash condensate thereto.
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公开(公告)号：US20180274391A1
公开(公告)日：2018-09-27
申请号：US15464955
申请日：2017-03-21
发明人： George Vargese Mathai , Jeremy Andrew Williams , Joseph Klosinski , Sanji Ekanayake , William Fisher , Alston Scipio
CPC分类号： F01K23/101 , F02C3/04 , F02C6/18 , F02C9/50 , F22G5/12 , H02K7/1823 , Y02E20/16
摘要： Embodiments of systems and methods described in this disclosure are directed to operating a combined cycle power plant. In certain embodiments, systems and methods can be provided for a combined cycle power plant incorporating a control system that uses a holistic approach to continuously and automatically adjust a heat rate of the combined cycle power plant and achieve a desired efficiency. In accordance with one embodiment of the disclosure, the control system can be used to dynamically control various operations of the combined cycle power plant, including addressing of certain conflicting requirements such as avoiding generation of superheated steam in an attemperator while concurrently maintaining exhaust emissions within allowable regulatory limits and maintaining exhaust gas temperatures within allowable material capability limits. The use of such a control system allows for an increased turndown capability of the combined cycle power plant along with an improvement in a combined cycle heat rate of the combined cycle power plant.
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公开(公告)号：US20180195405A1
公开(公告)日：2018-07-12
申请号：US15404903
申请日：2017-01-12
CPC分类号： F01D21/003 , F01K7/16 , F01K23/10 , F01K23/101 , F02C3/04 , F02C6/18 , G01L3/26 , G01M15/14 , Y02E20/16
摘要： A non-transitory computer readable medium stores instructions that are executed by a processor of a monitoring that when executed, the processor receives a state of at least one operational parameter of the turbomachinery. Then, the processor determines whether the state is within a region of accuracy of a stored record of a stored state stored in the memory. When the state is within the region of accuracy, the processor determines at least one operating condition from the stored record. Alternatively, when the state is not within the first region of accuracy, the processor stores the state as a new record in the memory.
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公开(公告)号：US10006315B2
公开(公告)日：2018-06-26
申请号：US14229625
申请日：2014-03-28
发明人： Brett Matthew Thompson , Michael Joseph Alexander , Matthew John Mosley , Steven Di Palma , Paul Jeffrey Mitchell , Justin Aaron Allen , Kihyung Kim
CPC分类号： F01K23/101 , F01K23/18 , F02C6/00 , F02C6/18 , F02C7/057 , F02C9/48 , F02C9/50 , F05D2220/32 , F05D2220/72 , F05D2270/303 , F05D2270/3032 , F05D2270/331 , F05D2270/44 , G05B15/02 , Y02E20/16
摘要： Systems, methods, and tangible non-transitory machine readable medium are provided. A system includes a gas turbine system configured to produce power by combusting a fuel. The system further includes a controller configured to control the gas turbine system via an operating 2-dimensional surface area and a setpoint, wherein the operating 2-dimensional surface area comprises a plurality of limits defining bounds for the operating 2-dimensional surface area, and wherein the setpoint is configured to be disposed inside the operating 2-dimentionsal surface area or on the limits.
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公开(公告)号：US20180171829A1
公开(公告)日：2018-06-21
申请号：US15383859
申请日：2016-12-19
CPC分类号： F01K23/101 , F02C6/18 , F05D2220/32 , F05D2220/72 , F22B1/1815 , F22B35/007 , F22D5/26 , F22D5/28 , F22D5/30 , Y02E20/16
摘要： A method includes determining, via a processor, a commanded fluid flow rate of a fluid entering or exiting the drum of an industrial system, wherein the commanded fluid flow rate comprises a rate of fluid entering the drum of the industrial system, exiting the drum of the industrial system, or a combination thereof. The method additionally includes determining, via the processor, a measured flow rate of the fluid. The method further includes determining, via the processor, a variable multiplier based at least in part on the commanded fluid flow rate and the measured flow rate; and deriving, via the processor, a multiplied flow rate command for the industrial system by applying the variable multiplier to the commanded fluid flow rate.
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公开(公告)号：US20180156073A1
公开(公告)日：2018-06-07
申请号：US15796373
申请日：2017-10-27
发明人： Seung Gyun CHEONG
CPC分类号： F01K23/101 , F01K7/165 , F01K13/02 , F02C6/18 , F02C7/268 , F05D2220/32 , F05D2220/72 , F05D2220/76 , F05D2260/81 , F05D2260/941 , Y02E20/16
摘要： Provided is a system for controlling start-up of a combined cycle power plant that includes a gas turbine that includes a rotor, an HRSG that generates steam, a steam turbine that includes a rotor, and generators that generate electric power using rotation forces, respectively, of the rotor of the gas turbine and the rotor of the steam turbine, the system including; a sensor that measures operating states of components of the combined cycle power plant; and a controller that controls the start-up, based on the operating states, which are acquired from the sensor, in which the controller verifies one or more restrictive conditions that restrict setting of an operational value of an operational parameter for the combined cycle power plant, based on the operating states, which are acquired from the sensor, and, based on a result of the verification, sets the operational value.
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公开(公告)号：US20180131199A1
公开(公告)日：2018-05-10
申请号：US15346288
申请日：2016-11-08
发明人： Geon Pyo LIM , Soo Yeol KIM , Chan Wook PARK , Yo Han CHOI , Seung Han KIM , Doo Yong PARK , Yong Beum YOON
IPC分类号： H02J7/00
CPC分类号： H02J7/0021 , F01K23/101 , H02J3/32 , H02J7/00 , H02J7/007 , H02J2007/005 , Y02E70/40
摘要： Disclosed is a method of controlling frequency of a power system by which a frequency of a power system is regulated using high-speed charging and discharging characteristics of a plurality of energy storage systems (ESSs) and a battery state of charge (SOC), the method including: an operation of comparing, by a control unit, first time information and second time information and performing an exit control mode when the first time information (Before_Exit_time) is equal to or less than the second time information (After_Exit_time); an operation of determining, the control unit, an output amount for each ESS for discharging batteries using a battery discharging amount determining function (Exit_control_output( ) function) when a first parameter value (D_time) preset in the exit control mode is a positive value greater than zero and the second time information (After_Exit_time) is equal to or less than a second parameter value (Clear_time); and an operation of discharging, by the control unit, batteries until the frequency is out of a normal range, when an allocated amount of output for each ESS is calculated.
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公开(公告)号：US09964035B2
公开(公告)日：2018-05-08
申请号：US14969067
申请日：2015-12-15
发明人： Joseph Philip Klosinski , Michael Anthony Cocca , Alston Ilford Scipio , Sanji Ekanayake , Jason Brian Shaffer
CPC分类号： F02C6/06 , F01D25/305 , F01K23/10 , F01K23/101 , F02C3/04 , F02C6/18 , H02K7/1823 , Y02E20/14 , Y02E20/16
摘要： A power plant includes a turbine having a plurality of turbine stages and an extraction port in fluid communication with one or more of the turbine stages. The extraction port provides a flow path for a stream of combustion gas to flow out of the turbine. An exhaust duct is disposed downstream from the turbine and receives exhaust gas from the turbine. The exhaust duct is fluid communication with the extraction port. A coolant injection system injects a coolant into the stream of combustion gas to provide cooled combustion gas to the exhaust duct. The cooled combustion gas flows into the exhaust duct at a temperature that is higher than a temperature of the exhaust gas, thereby increasing the temperature of the exhaust gas within the exhaust duct. The increase in thermal energy may be used to produce steam downstream from the exhaust duct.
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公开(公告)号：US09957845B2
公开(公告)日：2018-05-01
申请号：US14780614
申请日：2014-03-26
发明人： Tomonori Haraguchi , Hiroyuki Nagai
CPC分类号： F01K23/065 , F01K13/02 , F01K23/10 , F01K23/101 , F01K23/14 , F01K25/10 , F02G5/00 , F02G5/02 , Y02T10/166
摘要： To effectively reduce a situation in which an over-rotation of an expander occurs or the expander becomes a load on an engine at the time of a stop of a Rankine cycle in an exhaust heat recovery device provided with the Rankine cycle that recovers exhaust heat of an engine. A pressure difference ΔP between a high-pressure side and a low-pressure side of the Rankine cycle is obtained when the Rankine cycle is stopped (S1), a waiting time Ta is set (calculated) based on the obtained pressure difference ΔP (S2). Then, a bypass valve is opened to allow a refrigerant to circulate while bypassing the expander (S3), and then an electromagnetic clutch is disengaged when the waiting time Ta has elapsed to block transmission of power between the expander and the engine (S4, S5).
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