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公开(公告)号：US11754003B2
公开(公告)日：2023-09-12
申请号：US17232797
申请日：2021-04-16
申请人： PowerPHASE LLC
CPC分类号： F02C9/50 , F02C3/30 , F02C9/00 , F05D2260/99 , F05D2270/083 , F05D2270/30 , F05D2270/303
摘要： Systems and methods to control gas turbine firing temperatures during air injection. A method of achieving a desired firing temperature of a gas turbine engine during air injection comprises injecting compressed air into the gas turbine engine using an external source. The external source includes a compressor and a recuperator. The method comprises using a controller of the gas turbine engine to: (a) determine an air injection exhaust bias gain using an inlet temperature of the gas turbine engine; (b) calculate, based on the determined air injection exhaust bias gain and a flow rate of the injected compressed air, an air injection exhaust curve bias; and (c) change a fuel flow of the gas turbine engine by adding the air injection exhaust curve bias to an existing exhaust curve of the gas turbine engine to thereby achieve the desired firing temperature during air injection.
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22.发明授权公开(公告)号：US11686250B2
公开(公告)日：2023-06-27
申请号：US17307003
申请日：2021-05-04
申请人： PowerPHASE LLC
发明人： Robert J. Kraft
CPC分类号： F02C7/22 , F02C9/50 , F02C9/52 , F05D2270/06 , F05D2270/071 , F05D2270/082 , F05D2270/331 , Y02E20/16
摘要： A system and method for increasing power output of a gas turbine. A method of increasing a power output of a gas turbine comprises providing an auxiliary system configured to be coupled to the gas turbine. The auxiliary system includes a natural gas engine, a compressor, and a heat exchanger fluidly coupled to the compressor. The method includes fluidly coupling the auxiliary system to a combustor case of the gas turbine. The method comprises operating the natural gas engine to drive the compressor to compress air to form compressed air and directing exhaust of the natural gas engine to the heat exchanger. The method includes heating the compressed air in the heat exchanger using the exhaust of the natural gas engine to form heated compressed air and injecting the heated compressed air into the combustor case of the gas turbine.
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公开(公告)号：US11053851B2
公开(公告)日：2021-07-06
申请号：US15430138
申请日：2017-02-10
申请人： PowerPHASE LLC
发明人： Robert J. Kraft
摘要： The present invention discloses embodiments for a power augmentation system of a gas turbine engine resulting in performance improvements while also improving efficiency. The invention provides systems and methods for generating a heated air supply by way of mixing compressed air from an electrically-driven process with air drawn from the engine compressor discharge plenum.
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公开(公告)号：US11022040B2
公开(公告)日：2021-06-01
申请号：US15430121
申请日：2017-02-10
申请人： PowerPHASE LLC
发明人： Robert J. Kraft
摘要： The invention relates generally to gas turbine engines used for electrical power generation. More specifically, embodiments of the present invention provide systems and ways for improving gas turbine engine reliability through an electric motor backup system for cooling features of the turbine section.
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公开(公告)号：US10443501B2
公开(公告)日：2019-10-15
申请号：US15228815
申请日：2016-08-04
申请人： POWERPHASE LLC
发明人： Robert J. Kraft , Peter Perri
摘要： The present invention discloses a novel apparatus and methods for providing a flow of cooling air to one or more turbine nozzles or turbine blade outer air seals. The flow of cooling air is provided by an external source and regulated in order to improve turbine nozzle and air seal cooling efficiency and component life.
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公开(公告)号：US10107199B2
公开(公告)日：2018-10-23
申请号：US15200175
申请日：2016-07-01
申请人： POWERPHASE LLC
发明人： Robert J. Kraft
摘要： The invention relates generally to electrical power systems, including generating capacity of a gas turbine, and more specifically to pressurized air injection that is useful for providing additional electrical power during periods of peak electrical power demand from a gas turbine system power plant, as well as to inlet heating to allow increased engine turn down during periods of reduced electrical demand.
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公开(公告)号：US09765693B2
公开(公告)日：2017-09-19
申请号：US14329433
申请日：2014-07-11
申请人： PowerPHASE LLC
发明人： Robert J. Kraft , Scott Auerbach
IPC分类号： F02C7/08 , F02C7/10 , F02C6/14 , F01K23/10 , F01K23/02 , F02C6/16 , F02C9/28 , F02C7/143 , F02C9/16
CPC分类号： F02C7/08 , F01K23/02 , F01K23/10 , F02C6/16 , F02C7/10 , F02C7/143 , F02C9/16 , F02C9/28 , F05D2260/42 , Y02E20/16 , Y02E60/15
摘要： The present invention discloses a novel apparatus and methods for controlling an air injection system for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of a power plant. Improvements in control of the air injection system include ways directed towards preheating the air injection system, including using an gas turbine components, such as an inlet bleed heat system to aid in the preheating process.
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公开(公告)号：US11976588B2
公开(公告)日：2024-05-07
申请号：US16259123
申请日：2019-01-28
申请人： POWERPHASE LLC
发明人： Robert J. Kraft , Plazi Ricklin
CPC分类号： F02C3/305 , F02C6/16 , F02C1/00 , F02C7/08 , F05D2260/42 , F05D2260/85
摘要： Gas turbine power plants augmented with an air injection system for hot air injection to augment power and are used to drive sensitive cogeneration processes are fitted with compressed air storage capability to more smoothly ramp on air injection in the event of sudden and unexpected interruption of the air injection system. Utilizing stored hot air injection prior to starting an air injection system significantly reduces the start-up time of the air injection system.
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公开(公告)号：US20210317791A1
公开(公告)日：2021-10-14
申请号：US17232797
申请日：2021-04-16
申请人： PowerPHASE LLC
摘要： Systems and methods to control gas turbine firing temperatures during air injection. A method of achieving a desired firing temperature of a gas turbine engine during air injection comprises injecting compressed air into the gas turbine engine using an external source. The external source includes a compressor and a recuperator. The method comprises using a controller of the gas turbine engine to: (a) determine an air injection exhaust bias gain using an inlet temperature of the gas turbine engine; (b) calculate, based on the determined air injection exhaust bias gain and a flow rate of the injected compressed air, an air injection exhaust curve bias; and (c) change a fuel flow of the gas turbine engine by adding the air injection exhaust curve bias to an existing exhaust curve of the gas turbine engine to thereby achieve the desired firing temperature during air injection.
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公开(公告)号：US10982599B2
公开(公告)日：2021-04-20
申请号：US15367525
申请日：2016-12-02
申请人： POWERPHASE LLC
摘要： The present invention discloses a novel modular system and methods of operating an increased air supply to a gas turbine engine such that the upon supplying a source of external air to the system, a bias is added to the exhaust temperature such that a firing temperature with air injection is substantially equivalent to the firing temperature without air injection.
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