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    • 4. 发明授权
    • Interconnecting power generation system
    • 互连发电系统
    • US07233082B2
    • 2007-06-19
    • US10731879
    • 2003-12-09
    • Tai FuruyaTadashi KataokaTerence McKelveyEishi MaruiMotoyasu SatoTakahide OzawaShaojun ZhengSeiichi IshiharaNoboru Kinoshita
    • Tai FuruyaTadashi KataokaTerence McKelveyEishi MaruiMotoyasu SatoTakahide OzawaShaojun ZhengSeiichi IshiharaNoboru Kinoshita
    • H02J7/00H02J9/00
    • H02J3/38H02J2003/388Y10T307/615
    • To provide an interconnecting power generation system which can detect an abnormality in the utility power supply and can be isolated from a utility power system and can prevent damage to a turbogenerator.An interconnecting power generation system comprises: an interconnecting inverter 14; a voltage phase shift circuit 20 which synchronizes the output voltage phase of the interconnecting inverter 14 with the utility power voltage phase and monitors zero crossings of the utility power voltage, and which shifts the output voltage phase from the utility power voltage phase and shifts the shifted output voltage phase to the utility power voltage phase; a phase comparator 24 for comparing the voltage phase of the utility power system 10 and the output voltage phase of the interconnecting inverter; and an interconnection control unit 30 which detects a power outage caused by an interruption of power supply from the utility power system 10 based on a series of a predetermined number of matching signals outputted from the phase comparator 24 and sends a control signal to a circuit breaker 22 to shut off the output of the interconnecting inverter 14 from the utility power system 10.
    • 提供可以检测公用电源的异常并且可以与公用电力系统隔离并且可以防止对涡轮发电机的损坏的互连发电系统。 互连发电系统包括:互连逆变器14; 电压相移电路20,其将互连逆变器14的输出电压相位与公用电力电压相位同步,并且监视公用电力电压的零交叉,并且从公用电力电压相位偏移输出电压相位并使偏移 输出电压相位到公用电源电压相位; 相位比较器24,用于比较公用电力系统10的电压相位和互连逆变器的输出电压相位; 以及互连控制单元30,其基于从相位比较器24输出的一系列预定数量的匹配信号来检测由公用电力系统10的电力供应中断引起的停电,并将控制信号发送到断路器 22,从公用电力系统10切断互连逆变器14的输出。
    • 5. 发明申请
    • Gas turbine generating apparatus
    • 燃气轮机发电装置
    • US20050179420A1
    • 2005-08-18
    • US11079099
    • 2005-03-15
    • Motoyasu SatohSeiichi IshiharaNoboru KinoshitaTakahide OzawaShao-Jun ZhengTerence MckelveyTadashi Kataoka
    • Motoyasu SatohSeiichi IshiharaNoboru KinoshitaTakahide OzawaShao-Jun ZhengTerence MckelveyTadashi Kataoka
    • F01D15/10F02C7/26F02C7/268H02J3/38H02J3/40H02H7/06H02M1/00H02P9/00H02P11/00
    • F02C7/268F01D15/10F02C7/26F05D2270/06H02J3/38H02J3/40Y02E20/14
    • A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-current power generated by the generator into commercial alternating-current power, and a system-interconnection device (9) for interconnecting output of the inverter device to a commercial AC power supply system (10). The system-interconnection device controls the inverter device based on voltage of the commercial AC power supply system as a criterion such that output current of the inverter device is in phase with the voltage or out of phase with the voltage by a constant phase difference. A control device (18) is provided for operating the permanent-magnet-type generator (4) as a motor at a time of starting the gas turbine, and supplying alternating-current power from a direct-current power supply through the inverter device or another inverter device in addition to the inverter device to the generator for increasing a rotational speed smoothly from zero. The control device detects output current of the inverter device and controls the inverter device to keep the output current constant.
    • 根据本发明的燃气轮机发电装置包括能够高速运转的燃气轮机,由燃气轮机高速驱动的永久磁铁式发电机,用于对交流电进行变换的逆变器装置(5) 由发电机产生的商用交流电力的电力;以及用于将逆变器装置的输出与商用交流电源系统(10)互连的系统互连装置(9)。 系统互连装置基于商用交流电源系统的电压来控制逆变器装置作为标准,使得逆变器装置的输出电流与电压相位相同或与电压异相恒定相位差。 提供一种控制装置(18),用于在启动燃气轮机时将作为电动机的永磁式发电机(4)进行操作,并且通过逆变器装置从直流电源提供交流电力,或 除了逆变器装置之外还有另一个逆变器装置,用于从零开始平稳地增加转速。 控制装置检测逆变器装置的输出电流并控制逆变器装置保持输出电流恒定。
    • 6. 发明授权
    • Gas turbine generator
    • 燃气轮机发电机
    • US06888263B2
    • 2005-05-03
    • US10477750
    • 2002-05-23
    • Motoyasu SatohSeiichi IshiharaNoboru KinoshitaTakahide OzawaShao-jun ZhengTerence MckelveyTadashi Kataoka
    • Motoyasu SatohSeiichi IshiharaNoboru KinoshitaTakahide OzawaShao-jun ZhengTerence MckelveyTadashi Kataoka
    • F01D15/10F02C7/26F02C7/268H02J3/38H02J3/40H02P9/00
    • F02C7/268F01D15/10F02C7/26F05D2270/06H02J3/38H02J3/40Y02E20/14
    • A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-current power generated by the generator into commercial alternating-current power, and a system-interconnection device (9) for interconnecting output of the inverter device to a commercial AC power supply system (10). The system-interconnection device controls the inverter device based on voltage of the commercial AC power supply system as a criterion such that output current of the inverter device is in phase with the voltage or out of phase with the voltage by a constant phase difference. A control device (18) is provided for operating the permanent-magnet-type generator (4) as a motor at a time of starting the gas turbine, and supplying alternating-current power from a direct-current power supply through the inverter device or another inverter device in addition to the inverter device to the generator for increasing a rotational speed smoothly from zero. The control device detects output current of the inverter device and controls the inverter device to keep the output current constant.
    • 根据本发明的燃气轮机发电装置包括能够高速运转的燃气轮机,由燃气轮机高速驱动的永久磁铁式发电机,用于对交流电进行变换的逆变器装置(5) 由发电机产生的商用交流电力的电力;以及用于将逆变器装置的输出与商用交流电源系统(10)互连的系统互连装置(9)。 系统互连装置基于商用交流电源系统的电压来控制逆变器装置作为标准,使得逆变器装置的输出电流与电压相位相同或与电压异相恒定相位差。 提供一种控制装置(18),用于在启动燃气轮机时将作为电动机的永磁式发电机(4)进行操作,并且通过逆变器装置从直流电源提供交流电力,或 除了逆变器装置之外还有另一个逆变器装置,用于从零开始平稳地增加转速。 控制装置检测逆变器装置的输出电流并控制逆变器装置保持输出电流恒定。
    • 7. 发明授权
    • Gas turbine generating apparatus
    • 燃气轮机发电装置
    • US07061211B2
    • 2006-06-13
    • US11079099
    • 2005-03-15
    • Motoyasu SatohSeiichi IshiharaNoboru KinoshitaTakahide OzawaShao-jun ZhengTerence MckelveyTadashi Kataoka
    • Motoyasu SatohSeiichi IshiharaNoboru KinoshitaTakahide OzawaShao-jun ZhengTerence MckelveyTadashi Kataoka
    • H02P3/00
    • F02C7/268F01D15/10F02C7/26F05D2270/06H02J3/38H02J3/40Y02E20/14
    • A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-current power generated by the generator into commercial alternating-current power, and a system-interconnection device (9) for interconnecting output of the inverter device to a commercial AC power supply system (10). The system-interconnection device controls the inverter device based on voltage of the commercial AC power supply system as a criterion such that output current of the inverter device is in phase with the voltage or out of phase with the voltage by a constant phase difference. A control device (18) is provided for operating the permanent-magnet-type generator (4) as a motor at a time of starting the gas turbine, and supplying alternating-current power from a direct-current power supply through the inverter device or another inverter device in addition to the inverter device to the generator for increasing a rotational speed smoothly from zero. The control device detects output current of the inverter device and controls the inverter device to keep the output current constant.
    • 根据本发明的燃气轮机发电装置包括能够高速运转的燃气轮机,由燃气轮机高速驱动的永久磁铁式发电机,用于对交流电进行变换的逆变器装置(5) 由发电机产生的商用交流电力的电力;以及用于将逆变器装置的输出与商用交流电源系统(10)互连的系统互连装置(9)。 系统互连装置基于商用交流电源系统的电压来控制逆变器装置作为标准,使得逆变器装置的输出电流与电压相位相同或与电压异相恒定相位差。 提供一种控制装置(18),用于在启动燃气轮机时将作为电动机的永磁式发电机(4)进行操作,并且通过逆变器装置从直流电源提供交流电力,或 除了逆变器装置之外还有另一个逆变器装置,用于从零开始平稳地增加转速。 控制装置检测逆变器装置的输出电流并控制逆变器装置保持输出电流恒定。
    • 8. 发明申请
    • ELECTRIC POWER SUPPLY APPARATUS AND METHOD OF SYNCHRONOUSLY OPERATING POWER CONVERTER
    • 电力供应装置和同步运行电力转换器的方法
    • US20070273342A1
    • 2007-11-29
    • US11753283
    • 2007-05-24
    • Tadashi KataokaShigeru SakataTakahide OzawaIsao TsukagoshiZheng Dai
    • Tadashi KataokaShigeru SakataTakahide OzawaIsao TsukagoshiZheng Dai
    • G05F1/10H02J3/12
    • H02P9/006H02P2101/10
    • An electric power supply apparatus includes a distributed power generator such as a gas turbine generator and a power converter such as an inverter apparatus for converting electric power generated by the distributed power generator into AC electric power (alternating-current power) having a required frequency and a required voltage and supplying the AC electric power to a load. The electric power supply apparatus further includes a control unit having output voltage vs. output current characteristics for determining an output voltage corresponding to an output current of the power converter. The output voltage vs. output current characteristics has a first dropping characteristic for causing output electric power of the electric generator to be limited, between a first output current exceeding a power generation capability of the electric generator and a second output current exceeding a power converting capability of the power converter.
    • 电力供给装置包括燃气轮机发电机等分布式发电机和用于将由分散发电机产生的电力转换为具有所需频率的交流电力(交流电力)的逆变器装置的功率转换器,以及 所需的电压并将AC电力提供给负载。 电力供给装置还包括具有用于确定与功率转换器的输出电流对应的输出电压的输出电压与输出电流特性的控制单元。 输出电压与输出电流特性之间具有第一下降特性,用于在超过发电机的发电能力的第一输出电流与超过功率转换能力的第二输出电流之间限制发电机的输出功率 的功率转换器。