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    • 83. 发明申请
    • Solar Power System and Control System
    • 太阳能发电系统及控制系统
    • US20130041511A1
    • 2013-02-14
    • US13521672
    • 2011-02-21
    • Tohru KohnoMotoo FutamiHiromu Kakuya
    • Tohru KohnoMotoo FutamiHiromu Kakuya
    • G06F1/26
    • G05F1/67H01L31/02021Y02E10/50
    • In a case in which a local solution to current-voltage characteristics is generated by way of a partial shade, it has been difficult to perform control for causing a solar cell to operate at a maximum power point efficiently in terms of power and at a low cost. During steady state operation, an MPPT control unit 1 for performing the normal hill climbing method is selected, and if the change amount of the output current of the solar cell is greater than or equal to a predetermined threshold, an MPPT control unit 2 for increasing the variation width of the output voltage of the solar cell to greater than the hill climbing method is selected. By way of such control, it is possible to achieve both efficient operation in a steady state and avoidance of a local solution to a partial shade at a low cost.
    • 在通过部分阴影产生电流 - 电压特性的局部解决方案的情况下,难以执行使太阳能电池在功率方面有效地在最大功率点工作的控制 成本。 在稳态运行中,选择用于执行正常登山方法的MPPT控制单元1,如果太阳能电池的输出电流的变化量大于或等于预定阈值,则MPPT控制单元2用于增加 选择太阳能电池的输出电压的变化幅度大于爬坡方式。 通过这样的控制,可以在稳定状态下实现有效的操作,并且可以以低成本避免局部溶液局部遮蔽。
    • 88. 发明授权
    • Power generation system using synchronous generator
    • 发电系统采用同步发电机
    • US06720753B2
    • 2004-04-13
    • US10191282
    • 2002-07-10
    • Akira KikuchiMotoo FutamiYasuyuki SugiuraNaoshi SugawaraKouichi Miyazaki
    • Akira KikuchiMotoo FutamiYasuyuki SugiuraNaoshi SugawaraKouichi Miyazaki
    • H02M545
    • H02P9/305H02P21/18H02P21/26H02P2201/03
    • An apparatus for controlling a synchronous generator having a converter. A voltage detector detects a terminal voltage of a stator of the synchronous generator. A current detector detects a current flowing through the stator. A rotor position estimating part estimates a rotor position of the synchronous generator from the detected voltage and current. An active power detector detects a active power of the synchronous generator. A reactive power detector detects a reactive power of the synchronous generator or a terminal voltage detector detects an effective value of a terminal voltage of the stator. An active power controller adjusts a q-axis current command to control the active power, and a reactive power controller or terminal voltage controller adjusts a d-axis current command to control the reactive power or terminal voltage.
    • 一种用于控制具有转换器的同步发电机的装置。 电压检测器检测同步发电机的定子的端子电压。 电流检测器检测流过定子的电流。 转子位置估计部件根据检测到的电压和电流来估计同步发电机的转子位置。 有功功率检测器检测同步发电机的有功功率。 无功功率检测器检测同步发电机的无功功率,或端子电压检测器检测定子的端电压的有效值。 有功功率控制器调节q轴电流指令以控制有功功率,无功功率控制器或端子电压控制器调节d轴电流指令以控制无功功率或端子电压。