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21.发明申请
公开(公告)号：WO2019112729A1
公开(公告)日：2019-06-13
申请号：PCT/US2018/059163
申请日：2018-11-05
Applicant: GENERAL ELECTRIC COMPANY
Inventor： BURRA, Rajni, Kant , VOGES, Randal , SHUKLA, Saurabh , GANIREDDY, Govardhan , KADHUM, Baraa
Abstract: A method for isolating faults in an electrical power system connected to a power grid includes dividing the electrical power system into a plurality of power modules each including a plurality of electrical power subsystems and a substation. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid and having a partial power transformer. The method also includes coupling each of the power modules to the power grid via a primary electrical line. Further, the method includes monitoring the electrical power system for faults. In response to detecting a fault in one of the power modules, the method includes isolating the fault to the power module experiencing the fault. In contrast, if the fault is detected in the primary electrical line or the power grid, the method includes tripping the electrical power system.
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22.发明申请
公开(公告)号：WO2019040037A1
公开(公告)日：2019-02-28
申请号：PCT/US2017/047713
申请日：2017-08-21
Applicant: GENERAL ELECTRIC COMPANY
Abstract: A hybrid power generation system is presented. The hybrid power generation system includes a generator operable via a prime mover and configured to generate an alternating current (AC) power. The hybrid power generation system further includes a first power converter electrically coupled to the generator, where the first power converter includes a direct current (DC) link. Furthermore, the hybrid power generation system includes a DC power source configured to be coupled to the DC-link. Moreover, the hybrid power generation system also includes a second power converter. Additionally, the hybrid power generation system includes an integration control sub-system operatively coupled to the first power converter and the DC power source. The integration control sub-system includes at least one bypass switch disposed between the DC power source and the DC-link and configured to connect the DC power source to the DC-link via the second power converter or bypass the second power converter.
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公开(公告)号：WO2018208643A1
公开(公告)日：2018-11-15
申请号：PCT/US2018/031309
申请日：2018-05-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GANIREDDY, Govardhan , SHUKLA, Saurabh , BURRA, Rajni , WAGONER, Robert, Gregory , KLODOWSKI, Anthony, Michael , KOLHATKAR, Yashomani
Abstract: An electrical power system includes a cluster of electrical power subsystems, each of the electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The electrical power system further includes a subsystem breaker configured with each of the electrical power subsystems, and a cluster transformer for connecting each cluster of electrical power subsystems to the power grid. The electrical power system further includes a cluster power path extending between each subsystem breaker and the cluster transformer, and a distortion filter electrically coupled to the cluster transformer. The distortion filter reduces harmonics in current flowing from the electrical power subsystems to the cluster transformer.
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24.发明申请POWER GENERATION SYSTEM HAVING VARIABLE SPEED ENGINE AND METHOD FOR CRANKING THE VARIABLE SPEED ENGINE 审中-公开具有可变速发动机的发电系统和用于曲轴变速发动机的方法
公开(公告)号：WO2017164977A1
公开(公告)日：2017-09-28
申请号：PCT/US2017/015039
申请日：2017-01-26
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GANIREDDY, Govardhan , TIWARI, Arvind, Kumar , KOLHATKAR, Yashomani, Y. , RAMACHANDRAPANICKER, Somakumar , PILLAI, Rahul, Radhakrishna
Abstract: A power generation system (101) is disclosed. The power generation system (101) includes a variable speed engine (106) and a DFIG (108) coupled thereto. The DFIG (108) includes a generator (112), a rotor side converter (114), and a line side converter (116) electrically coupled to the generator (112). The rotor side converter (114) is configured to aid in operating the generator (112) as motor to crank the variable speed engine (106). The power generation system (101) further includes a PV power source (110) and/or an energy storage device (122) electrically coupled to a DC-link (118) between the rotor side converter (114) and the line side converter (116). A method of cranking the variable speed engine is also disclosed.
Abstract translation: 公开了一种发电系统（101）。 发电系统（101）包括变速发动机（106）和与其连接的DFIG（108）。 DFIG（108）包括电联接到发电机（112）的发电机（112），转子侧转换器（114）和线路侧转换器（116）。 转子侧转换器（114）构造成帮助操作作为马达的发电机（112）以启动变速发动机（106）。 发电系统（101）还包括电耦合到转子侧转换器（114）和线路侧转换器（114）之间的DC链路（118）的PV电源（110）和/或能量存储装置（122） 116）。 还公开了一种起动变速发动机的方法。
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公开(公告)号：WO2019212562A1
公开(公告)日：2019-11-07
申请号：PCT/US2018/031088
申请日：2018-05-04
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GANIREDDY, Govardhan , BOLLENBECKER, John Leo , BURRA, Rajni , WAGONER, Robert Gregory , KLODOWSKI, Anthony Michael
Abstract: The present disclosure is directed to a method for protecting an electrical power system connected to a power grid. The electrical power system includes at least one cluster of electrical power subsystems. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The electrical power system further includes a subsystem switch configured with each of the electrical power subsystems and a cluster transformer connecting each cluster of electrical power subsystems to the power grid. A cluster switch is configured with the cluster transformer. A controller is communicatively coupled to each of the plurality of electrical power subsystems. Thus, the controller monitors the electrical power system for faults, and if a fault is detected in the cluster, sends, via one of the subsystem switches or the power converters, a block signal to the cluster switch.
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Patent Agency Ranking
公开(公告)号：WO2019195503A1
公开(公告)日：2019-10-10
申请号：PCT/US2019/025711
申请日：2019-04-04
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GANIREDDY, Govardhan , SCHNETZKA, Harold Robert , WAGONER, Robert Gregory , RIDENOUR, Amy Marlene , JHA, Kapil , KOLHATKAR, Yashomani Y. , TIWARI, Arvind Kumar
Abstract: Systems and methods for operating a power system having a doubly fed induction generator are provided. In example implementations, an electrical power system (100) connected to a power grid (190) can include a generator (120) comprising a stator and a rotor, the stator connected to the power grid via a stator power path, and a power converter (130). The power converter (130) can include a line-side converter (134) coupled to the power grid (190) via a converter power path and a rotor-side converter (132) coupled to a rotor bus (124) of the rotor and the line-side converter (134) via a DC link, the rotor-side converter (132) configured to convert a DC power on the DC link to an AC signal for the rotor bus (124). The power system (100) can also include an active filter (250) comprising one or more active controlled components, the active filter (250) being coupled in parallel with the rotor-side converter (132) to reduce harmonics of the electrical power system (100).
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公开(公告)号：WO2019023023A1
公开(公告)日：2019-01-31
申请号：PCT/US2018/042716
申请日：2018-07-18
Applicant: GENERAL ELECTRIC COMPANY
Inventor： KOLHATKAR, Yashomani, Y , TIWARI, Arvind, Kumar , BOLLENBECKER, John, Leo , RAJU, Ravisekhar, Nadimpalli , BURRA, Rajini, Kant , GANIREDDY, Govardhan
Abstract: A hybrid power generation system is presented. The system includes a first power generation subsystem including a prime mover driving a generator including a rotor and a stator, one or more first conversion units coupled to at least one of the rotor and the stator, a first direct current (DC) link, and one or more second conversion units coupled to a corresponding one or more first conversion units via the first DC link. The system includes one or more second power generation subsystems coupled to the first power generation subsystem and one or more power conversion subunits including one or more first bridge circuits coupled to a corresponding one or more second bridge circuits via one or more transformers, where at least one of the one or more second power generation subsystems and the first power generation subsystem includes the one or more power conversion subunits.
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公开(公告)号：WO2018231548A1
公开(公告)日：2018-12-20
申请号：PCT/US2018/035550
申请日：2018-06-01
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GANIREDDY, Govardhan , SHUKLA, Saurabh , KLODOWSKI, Anthony, Michael
Abstract: A method for controlling an electrical power subsystem includes determining an auxiliary voltage error value based on a measured voltage of the low voltage distribution panel. The method further includes receiving an active current command. The method further includes calculating a switching pattern for a line-side converter of the power converter based on the auxiliary voltage error value and the active current command. A current level produced by the line-side converter controls a voltage to the low voltage distribution panel.
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公开(公告)号：WO2018208641A1
公开(公告)日：2018-11-15
申请号：PCT/US2018/031307
申请日：2018-05-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GANIREDDY, Govardhan , SHUKLA, Saurabh , THAKUR, Sumeet , WAGONER, Robert Gregory , KLODOWSKI, Anthony Michael , KOLHATKAR, Yashomani
Abstract: An electrical power subsystem includes a generator comprising a generator stator and a generator rotor, and a power converter electrically coupled to the generator. The power converter includes a plurality of rotor-side converters electrically coupled in parallel, a line-side converter, and a regulated DC link electrically coupling the plurality of rotor-side converters and the line-side converter. The electrical power subsystem further includes a stator power path for providing power from the generator stator to the power grid, and a converter power path for providing power from the generator rotor through the power converter to the power grid.
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公开(公告)号：WO2018128858A1
公开(公告)日：2018-07-12
申请号：PCT/US2017/068198
申请日：2017-12-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： WAGONER, Robert, Gregory , GANIREDDY, Govardhan , SHUKLA, Saurabh , RAJU, Ravisekhar, Nadimpalli , SCHNETZKA, Harold, Robert
Abstract: Systems and methods for grounding power generation systems with silicon carbide MOSFET power converters are provided. A power generation system can include a power generator comprising a multiphase rotor configured to generate multiphase alternating current power at a first voltage and a power converter comprising one or more silicon carbide MOSFETs and an isolation transformer. The power converter can be configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power generation system can be electrically grounded to shunt a leakage current associated with the isolation transformer of the power converter to a ground.
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