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    • 3. 发明授权
    • Control system for variable speed hydraulic turbine generator apparatus
    • 变速水轮发电机控制系统
    • US4694189A
    • 1987-09-15
    • US911131
    • 1986-09-24
    • Eiji HaraguchiHiroto NakagawaAkira BandoTakao KuwaharaHaruo NoharaKenichi Ono
    • Eiji HaraguchiHiroto NakagawaAkira BandoTakao KuwaharaHaruo NoharaKenichi Ono
    • H02P9/00H02P9/42F01D15/10
    • H02P9/007H02P9/42
    • A control system for variable speed hydraulic turbine generator apparatus comprises an induction generator connected at its primary side to an AC power line system, a secondary excitation controller connected to the secondary side of the induction generator and being responsive to a generator output command signal supplied externally to supply to the induction generator an excitation current which causes the induction generator to generate AC power at the same frequency as that on the AC power line system, a hydraulic turbine for rotating the induction generator, a guide valve for regulating the amount of water supplied to the hydraulic turbine, a rotation speed detector for detecting a rotation speed of the induction generator, a rotation speed command calculator for receiving a hydraulic turbine running condition signal inclusive of the external generator output command signal and calculating an optimum rotation speed command, a rotation speed controller for comparing the optimum rotation speed command with a rotation speed signal from the rotation speed detector and producing a guide valve opening control signal in accordance with a difference between the optimum rotation speed command and the rotation speed signal, and a guide valve driver responsive to the guide valve opening control signal to deliver to the guide valve a signal which controls the opening of the guide valve in accordance with the guide valve opening control signal.
    • 一种用于变速水轮机发电机装置的控制系统包括:其初级侧连接到AC电力线系统的感应发电机,连接到感应发电机的次级侧的辅助励磁控制器,并响应于外部提供的发电机输出指令信号 向感应发电机提供励磁电流,其使感应发电机产生与AC电力线系统相同的频率的AC电力,用于旋转感应发电机的水轮机,用于调节供水量的导向阀 水轮机,用于检测感应发电机的转速的转速检测器,用于接收包括外部发电机输出指令信号的水轮机行驶状态信号并计算最佳转速指令的转速指令运算器,旋转 速度控制器,用于比较最佳腐烂 并且根据最佳转速指令和转速信号之间的差产生导向开阀控制信号,以及响应于导向阀打开控制的导向阀驱动器 信号,以向导阀传送根据导向阀打开控制信号控制导向阀打开的信号。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR DETERMINING DEVELOPER CONSUMPTION, AND IMAGE FORMING APPARATUS
    • 用于确定开发者消费的方法和装置,以及图像形成装置
    • US20070103717A1
    • 2007-05-10
    • US11558758
    • 2006-11-10
    • Kenichi Ono
    • Kenichi Ono
    • G06K15/00
    • G06K15/00G03G15/553G03G15/556
    • A developer consumption determining method for determining a developer consumption of an image forming apparatus includes the steps of dividing one of writing pixels into a plurality of sub-pixels in a main scanning direction, determining a weighting coefficient for each of surrounding sub-pixels of one of the sub-pixels located within a predetermined distance from the one of the sub-pixels on the basis of positional relationships, determining respective emission coefficients for the surrounding sub-pixels on the basis of one of durations and exposures of the light beams applied to the surrounding sub-pixels, summing products of the weighting coefficients of the surrounding sub-pixels and the respective emission coefficients to obtain total exposure for the one of the sub-pixels, repeating for all of the sub-pixels the steps of determining the weighting coefficient, determining respective emission coefficients, and summing products, and summing the total exposures for all the sub-pixels to determine the developer consumption.
    • 一种用于确定图像形成装置的显影剂消耗的显影剂消耗确定方法包括以下步骤:将主要扫描方向上的多个子像素中的一个写入像素分割成一个,以确定每个像素的一个的加权系数 基于位置关系位于与子像素之一预定距离内的子像素,基于施加到...的光束的持续时间和曝光中的一个确定周围子像素的各个发射系数 周围子像素,周围子像素的加权系数的乘积和相应的发射系数,以获得子像素之一的总曝光,对于所有子像素重复确定加权的步骤 系数,确定各自的发射系数,并对产物求和,并对所有子像素的总曝光进行求和 以确定开发商的消费。