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公开(公告)号：US10029631B2
公开(公告)日：2018-07-24
申请号：US14418075
申请日：2013-07-29
摘要： A power stabilizing device in a system includes as a portion of a power converter section, a second PWM converter provided between a second primary AC bus and a second DC bus in an electric system and configured to perform mutual conversion between DC power and AC power. A power stabilizing control section in the power stabilizing device controls charging and discharging of a secondary battery based on a voltage and a frequency in the second primary AC bus, thereby stabilizing the electric system.
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公开(公告)号：US09425677B2
公开(公告)日：2016-08-23
申请号：US14771373
申请日：2013-10-18
IPC分类号： G05F3/06 , H02M7/757 , H02M5/42 , H02M7/68 , H02M3/24 , H02M7/44 , H02M1/00 , H02M7/5387 , H02M7/539 , H02J3/38
CPC分类号： H02M1/00 , H02J3/381 , H02J3/383 , H02J3/387 , H02J2003/388 , H02M7/53875 , H02M7/539 , H02M2001/0009 , H02P9/102 , H02P9/105 , H02P21/0017 , Y02E10/563
摘要： A power converter that includes: a power conversion unit; and a control unit configured to control the power conversion unit such that the power conversion unit operates as a virtual synchronous generator. The control unit includes: an AVR model unit; a governor and driving source model unit; a power generation torque arithmetic operation unit; a rotation angle arithmetic operation unit; a voltage d-q conversion unit; and a generator model unit configured to perform arithmetic operation.
摘要翻译： 一种电力转换器，包括：电力转换单元; 以及控制单元，被配置为控制所述功率转换单元，使得所述功率转换单元作为虚拟同步发电机工作。 控制单元包括：AVR模型单元; 一个州长和驱动源模型单位; 发电转矩算术运算部; 旋转角算术运算单元; 电压d-q转换单元; 以及被配置为执行算术运算的发电机模型单元。
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公开(公告)号：US10742041B2
公开(公告)日：2020-08-11
申请号：US16082350
申请日：2016-03-07
IPC分类号： H02J3/42 , H02P9/10 , B64D31/14 , F01D15/10 , F16H15/38 , F16H61/664 , H02P9/48 , H02P101/25 , H02P101/30
摘要： A power-on/off command is output to a breaker for switching when a frequency difference between a plurality of electric power supply sources is within a predetermined range and a phase difference between the plurality of electric power supply sources is within a predetermined range, in switching of electric power supply between the plurality of electric power supply sources. A generator drive rotation speed of a transmission device is feedback controlled so that the frequency difference is maintained at a value within the predetermined range and the phase difference is maintained at a value within the predetermined range when the detected frequency difference is within the predetermined range and the detected phase difference is within the predetermined range. A generator rotation speed command is calculated by adding to the rotation speed command of the transmission device an output value obtained by subjecting the detected phase difference to a proportional-integral-control.
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公开(公告)号：US09698603B2
公开(公告)日：2017-07-04
申请号：US14758333
申请日：2013-12-05
发明人： Kazushige Sugimoto , Masahide Kawamura , Kentaro Sakata , Mitsuchika Ogawa , Kentaro Tsuda , Takefumi Iizaka , Yuko Hirase
IPC分类号： B63J3/00 , H01M10/48 , H02M7/04 , H02J3/38 , H02M7/44 , H01M10/44 , H02J3/46 , H02M7/539 , H01M8/04858 , H01M16/00 , H01M8/04537
CPC分类号： H02J3/381 , B63J3/00 , H01M8/04544 , H01M8/04925 , H01M10/44 , H01M10/48 , H01M16/006 , H02J3/38 , H02J3/383 , H02J3/386 , H02J3/387 , H02J3/46 , H02J2003/388 , H02M7/04 , H02M7/44 , H02M7/539 , Y02A30/62 , Y02E10/563 , Y02E10/763 , Y02T90/38 , Y10T307/549
摘要： A first internal phase difference angle calculator for integrating a deviation between a first frequency command value and a frequency obtained by frequency obtaining device to calculate a first internal phase difference angle, a first internal electromotive voltage command value calculator for proportioning and calculating a deviation between a first reactive power command value and a reactive power obtained based on the value measured by first measuring device, and adding a reference voltage to the deviation so as to calculate a first internal electromotive voltage command value, and a first current command value calculator for calculating a command value of an output current from a first power converter based on the first internal phase difference angle, the first internal electromotive voltage command value, and a voltage measured by the voltage measuring device. The apparatus controls the first power converter based on an output from the first current command value calculator.
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公开(公告)号：US10778128B2
公开(公告)日：2020-09-15
申请号：US16473877
申请日：2016-12-27
IPC分类号： H02P9/42 , H02P9/10 , H02P101/25 , H02P101/30 , F16H15/16 , F16H61/664 , F16H63/04 , B64D41/00 , F16H59/40 , F16H61/00
摘要： A power generation system includes a continuously variable transmission, a power generator, a transmission driving device, an output-side speed detector, and electric power load device, and a controller. The electric power load calculation device detects current values and current values of respective phases of three-phase alternating current generated by the power generator, calculates electric power load of the power generator based on the detected values, and executes filtering by attenuating a higher harmonic of a set frequency when calculating the electric power load of the power generator. The controller executes feedback control of calculating and outputting a gear change command to the transmission driving device so an output-side rotational speed detected by the output-side speed detector becomes equal to an output-side target rotational speed corresponding to the set frequency. The controller also executes feedforward compensation of correcting the gear change command, based on the calculated electric power load.
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公开(公告)号：US10770905B2
公开(公告)日：2020-09-08
申请号：US16474725
申请日：2017-12-27
发明人： Kazushige Sugimoto , Kenichi Sakimoto , Tomoyuki Hirai , Shogo Hamano , Shimpei Kobayashi , Yuko Hirase , Kensho Abe , Osamu Noro , Shogo Katsura , Eiji Yoshimura
摘要： While a power storage installation operates as a virtual generator to maintain an power storage amount, a power generating installation calculates a first generated power change rate command value from a deviation between a frequency of a power distribution system and a frequency command value, calculates a second generated power change rate command value from received power measured by a received power measurer, calculates a second active power command value by integrating a generated power change rate command value to which the first generated power change rate command value and the second generated power change rate command value are added, and controls an output of the power generating installation based on the second active power command value.
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公开(公告)号：US10766630B2
公开(公告)日：2020-09-08
申请号：US15736963
申请日：2016-06-15
IPC分类号： B64D41/00 , H02M3/00 , H02M7/12 , H02P9/04 , H02J1/14 , H02J3/32 , H02J7/34 , H02J1/10 , H02J1/00 , B60R16/03
摘要： A first DC power supply section of a DC stabilization power supply system includes at least a generator and a PWM converter. A second DC power supply section of the DC stabilization power supply system includes at least a battery and a boost converter. Each of these DC power supply sections performs a power supply stabilization operation for supplying DC power to an electric system and absorbing regenerative power generated from an actuator or the like. A PWM converter controls adjustment of the amount of the power supply stabilization operation to be performed by the DC power supply section and the amount of the power stabilization operation to be performed by the DC power supply section, by changing a target voltage value of a DC bus.
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公开(公告)号：US11777315B2
公开(公告)日：2023-10-03
申请号：US17356547
申请日：2021-06-24
CPC分类号： H02J3/32 , H02J3/16 , H02M7/003 , H02M7/797 , H02J2310/42
摘要： A power converter, a voltage detector that detects a system voltage at an AC wiring side of the power converter; and a controller that performs power conversion control between AC wiring and DC wiring by transmitting a drive signal to the power converter. The controller includes: a phase calculator that calculates a current phase from the system voltage detected by the voltage detector; a phase jump angle calculator that calculates a virtual phase that follows temporal changes in the current phase in a lagging manner, and calculates a phase difference between the current phase and the virtual phase as a phase jump angle; and a drive signal generator that generates the drive signal to the power converter, which is a signal for adjusting active power that is inputted to/outputted from the power converter so as to suppress the phase jump angle.
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公开(公告)号：US11128245B2
公开(公告)日：2021-09-21
申请号：US16757692
申请日：2018-10-16
发明人： Yusuke Umezu , Kazushige Sugimoto , Soichiro Bando , Naoki Yamaguchi , Kenichi Sakimoto , Kiyoshi Kimura , Suguru Takayama , Takato Uda
IPC分类号： H02P9/06 , H02J3/48 , H02J1/12 , H02P101/30 , B64D47/00
摘要： At least one of a plurality of generators is a first generator configured such that a relationship of a generator output voltage with respect to a generator active power output from the generator to a corresponding first AC wiring portion has a predetermined first drooping characteristic. The control device is configured to generate a drive signal for a power conversion device by deciding a target value of a first control element such that a relationship of an AC wiring portion voltage with respect to a power conversion device active power output from the power conversion device to a first AC wiring portion corresponding to a first generator has a predetermined second drooping characteristic and correcting the target value of the first control element according to a DC voltage at a DC wiring portion.
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公开(公告)号：US10985560B2
公开(公告)日：2021-04-20
申请号：US16468882
申请日：2017-12-26
发明人： Yusuke Umezu , Kazushige Sugimoto , Soichiro Bando , Naoki Yamaguchi , Kiyoshi Kimura , Suguru Takayama , Takato Uda
摘要： Each of the plurality of generators is configured so a relationship of frequency with respect to a generator active power output by each generator to the corresponding alternating-current wiring unit has a predetermined first drooping characteristic. The plurality of power conversion devices is configured to convert alternating-current power input through each alternating-current wiring unit into direct-current power, and to convert direct-current power input through the direct-current wiring unit into alternating-current power. The control device is configured to determine a target value of a control element such that a relationship of frequency with respect to a power conversion device active power output by each power conversion device to the corresponding alternating-current wiring unit has a predetermined second drooping characteristic, and is configured to generate a drive signal for each power conversion device by correcting a target value of the control element in response to direct-current voltage at the direct-current wiring unit.
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