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公开(公告)号：US11211889B2
公开(公告)日：2021-12-28
申请号：US16360463
申请日：2019-03-21
发明人： Kiyotaka Matsubara , Makoto Nakamura , Daigo Nobe , Ryuji Omata
摘要： A control unit distributes a motor voltage vector corresponding to an output request for a motor to a first and a second inverter voltage vectors associated with outputs from a first inverter and a second inverter, and determines whether a switching condition for three-phase-on mode is satisfied. Determining that the switching condition is satisfied, the control unit switches to three-phase-on mode in which every high-side switching element or every low-side switching element of one inverter is turned on and one end of a coil in each phase of the motor is brought into common connection, and the control unit drives the motor with an output from the other inverter. Herein, the switching condition for three-phase-on mode includes failure of one inverter and an inverter voltage vector of an output from one inverter being approximate to 0 when neither of the inverters fails.
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公开(公告)号：US10404198B2
公开(公告)日：2019-09-03
申请号：US14920960
申请日：2015-10-23
发明人： Heng Deng
摘要： A method, an arrangement and a computer program for controlling an energy flow to a grid, from an electrical alternating current machine with unbalanced impedance, in particular an electrical alternating current generator of a wind turbine, the method comprising: obtaining a first power signal representing a first power command.
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公开(公告)号：US09628008B1
公开(公告)日：2017-04-18
申请号：US15007541
申请日：2016-01-27
CPC分类号： H02P9/02 , H02K7/1823 , H02K11/0094 , H02K19/38
摘要： A method and apparatus for operating a generator control unit having power bridge, further including having an input and at least one output, wherein the input is operably coupled with a generator power output, and a controller communicatively coupled with the power bridge and configured to operate the power bridge.
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公开(公告)号：US09590545B2
公开(公告)日：2017-03-07
申请号：US14675001
申请日：2015-03-31
申请人： Kohler Co.
CPC分类号： H02P9/00 , H02K7/1815 , H02P9/009 , H02P9/04 , H02P9/14 , H02P9/302 , H02P9/48 , H02P2101/45
摘要： In one embodiment, a generator includes a rotor configured to rotate in cooperation with a stator to generate electrical power. A sensor, which is supported by the rotor, is configured to generate a trigger signal indicative of a position of the rotor. A communication interface is configured to receive the trigger signal from the sensor of the rotor and receive data indicative of an output of the generator. A controller supported by the rotor or configured to perform a phase analysis of the trigger signal and the output of the generator and calculate a power angle for the generator based on the phase analysis.
摘要翻译： 在一个实施例中，发电机包括配置成与定子协作旋转以产生电力的转子。 由转子支撑的传感器被配置为产生指示转子位置的触发信号。 通信接口被配置为从转子的传感器接收触发信号并接收指示发生器的输出的数据。 由转子支持的或被配置为执行触发信号和发生器的输出的相位分析并基于相位分析计算发电机的功率角的控制器。
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公开(公告)号：US09537438B2
公开(公告)日：2017-01-03
申请号：US14594555
申请日：2015-01-12
发明人： Brian B. Brady
摘要： A genset includes a generator configured to generate a power signal having a first voltage. A controller is configured to monitor and control at least one operational parameter of the generator. A buss potential isolation module is configured to receive the power signal having the first voltage from the generator, reduce the first voltage to output a second voltage, and communicate the power signal having the second voltage to the controller. The second voltage is suitable for communicating to the controller which can include electronic circuitry configured to meet an NEC Class 2 circuit requirement. The first voltage can be at least 120 volts, and the second voltage can be less than 24 volts.
摘要翻译： 发电机组包括被配置为产生具有第一电压的功率信号的发电机。 控制器被配置为监视和控制发电机的至少一个操作参数。 总线电势隔离模块被配置为从发生器接收具有第一电压的功率信号，减小第一电压以输出第二电压，并将具有第二电压的功率信号传送到控制器。 第二电压适于与控制器通信，该控制器可以包括被配置为满足NEC 2类电路要求的电子电路。 第一电压可以是至少120伏，第二电压可以小于24伏特。
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公开(公告)号：US09490737B2
公开(公告)日：2016-11-08
申请号：US14276859
申请日：2014-05-13
申请人： Gary William Box
发明人： Gary William Box
摘要： A brushless field exciter for wound synchronous machines that uses the resonance of the leakage inductance and a capacitor in a resonant field exciter to transfer energy to the rotating field winding. By resonating at frequencies greater than 50 kHz, this exciter reduces the overall size and weight of synchronous wound field motors at all power levels and extends the practical and economic power limits of synchronous wound field machines down to low integral and fractional HP applications, eliminating the permanent magnets now used in high efficiency motors and generators in that power range.
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7.发明授权Power generation control unit determining maximum excitation current of power generator mounted on vehicle 有权确定发电机安装在车辆上的最大励磁电流的发电控制单元公开(公告)号：US09397601B2
公开(公告)日：2016-07-19
申请号：US14164323
申请日：2014-01-27
申请人： DENSO CORPORATION
发明人： Kengo Terada , Kenji Sugiura
摘要： An on-vehicle power generation control unit includes current detecting unit; communication unit; holding unit; maximum current determining unit; and current control unit. The current detecting unit detects the excitation current at the field winding. The communication unit communicates with an external equipment to receive a first upper limit. The holding unit holds a second upper limit. The maximum current determining unit determines a maximum current to be the second upper limit when the first upper limit has not received by the communication unit or when the received first upper limit is more than or equal to the second upper limit. Further, the maximum current determining unit determines the maximum current value to be the first upper limit when the received first upper limit is less than the second upper limit. The current control unit controls the detected excitation current to be within the maximum current value.
摘要翻译： 车载发电控制单元包括电流检测单元; 通讯单元 持有单位 最大电流确定单元; 和电流控制单元。 电流检测单元检测励磁绕组上的励磁电流。 通信单元与外部设备通信以接收第一上限。 保持单元保持第二上限。 最大电流确定单元当通信单元没有接收到第一上限时或者当所接收的第一上限大于或等于第二上限时，确定最大电流为第二上限。 此外，当接收到的第一上限小于第二上限时，最大电流确定单元确定最大电流值为第一上限。 电流控制单元将检测到的激励电流控制在最大电流值内。
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公开(公告)号：US09316160B2
公开(公告)日：2016-04-19
申请号：US14024781
申请日：2013-09-12
发明人： Kevin Chan , Hongtao Li , Joerg Oesterheld
CPC分类号： F02C9/16 , F02C9/00 , F02C9/28 , F05D2270/053 , F05D2270/061 , F05D2270/091 , H02J3/24
摘要： The invention relates to a method for operating a thermal power plant, which includes a gas turbine and a generator driven directly by the gas turbine by means of a shaft and being connected to an electrical grid having a grid frequency (FG) via an electronic decoupling apparatus and a step-up transformer. A synthetic inertia response is achieved by said method includes the steps of: sensing said grid frequency (FG); detecting if in case of an excursion of said grid frequency (FG) additional inertial power is required or not; if inertial power is required, calculating the magnitude and duration of the additional inertial power; and releasing additional inertial power to said electrical grid in accordance with said calculations via said electronic decoupling apparatus.
摘要翻译： 本发明涉及一种用于操作火力发电厂的方法，其包括燃气轮机和通过轴直接由燃气涡轮驱动的发电机，并通过电子去耦连接到具有电网频率（FG）的电网 装置和升压变压器。 通过所述方法实现合成惯性响应，包括以下步骤：感测所述电网频率（FG）; 检测在所述电网频率（FG）的偏移的情况下是否需要额外的惯性功率; 如果需要惯性功率，则计算附加惯性功率的大小和持续时间; 并且根据经由所述电子去耦装置的所述计算，向所述电网释放额外的惯性功率。
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公开(公告)号：US09276511B2
公开(公告)日：2016-03-01
申请号：US14172046
申请日：2014-02-04
申请人： Kohler Co.
发明人： Isaac S. Frampton
摘要： An output of a generator may vary according to the speed of the engine, physical characteristics of the engine, or other factors. A profile for a generator that describes a periodic fluctuation in an operating characteristic for the generator is identified. A field current of an alternator associated with the generator is modified based on the profile for the generator in order to counter variations in the output of the generator.
摘要翻译： 发电机的输出可以根据发动机的速度，发动机的物理特性或其他因素而变化。 识别用于描述发电机的工作特性的周期性波动的发电机的轮廓。 基于发电机的轮廓来修改与发电机相关联的交流发电机的励磁电流，以便对抗发电机输出的变化。
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公开(公告)号：US09240743B2
公开(公告)日：2016-01-19
申请号：US14373668
申请日：2012-04-11
IPC分类号： H02P11/00 , H02H7/06 , H02P9/00 , H02P9/48 , B60W10/08 , B60W20/00 , B60K6/485 , H02P9/14 , B60L11/02 , H02P7/00
CPC分类号： H02P9/48 , B60K6/485 , B60L11/02 , B60W10/08 , B60W20/00 , B60W2510/084 , B60W2710/083 , H02P9/14 , Y02T10/6226 , Y02T10/70 , Y02T10/7077
摘要： Provided is a power-generation control device capable of appropriately using a drive belt looped around a power generator and an internal-combustion engine mounted on a vehicle. The device monitors a difference between an actual generated current of a rotating electrical machine and an estimated generated current estimated from estimated power-generation torque for controlling power generation of the rotating electrical machine, which corresponds to a power-generation torque command, or the like. When a difference equal to or more than a predetermined value occurs between the actual and the estimated generated currents, the power-generation control device limits the estimated power-generation torque so as to be reduced, and further limits the estimated power-generation torque with use of learning limiting power-generation torque calculated based on the estimated power-generation torque at a time when the difference has occurred between the actual generated current and the estimated generated current.
摘要翻译： 提供一种发电控制装置，其能够适当地使用环绕发电机的驱动带和安装在车辆上的内燃机。 该装置监视与发电转矩指令对应的旋转电机的实际发电电流与用于控制旋转电机的发电量的推定发电转矩估算出的推定发电电流之差 。 当在实际和估计的发电电流之间发生等于或大于预定值的差异时，发电控制装置将所估计的发电转矩限制为减小，并进一步限制估计的发电转矩与 使用在实际发电电流与估计发电电流之间发生差异时基于估计发电转矩计算的学习限制发电转矩。
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