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    Power system having generator driven by engine
    2.
    发明授权
    Power system having generator driven by engine 有权
    发电机驱动发电机的电力系统

    公开(公告)号：US07235891B2

    公开(公告)日：2007-06-26

    申请号：US10641030

    申请日：2003-08-15

    申请人： Masayoshi Tokiwa ,  Shinji Hibi ,  Kotaro Nakamura ,  Masao Mabuchi ,  Nobuyuki Toyoura ,  Kenichi Inoue ,  Katsutaka Tanabe ,  Yasuyuki Okoba

    发明人： Masayoshi Tokiwa ,  Shinji Hibi ,  Kotaro Nakamura ,  Masao Mabuchi ,  Nobuyuki Toyoura ,  Kenichi Inoue ,  Katsutaka Tanabe ,  Yasuyuki Okoba

    IPC分类号： B60L11/02 ,  B61C9/38 ,  H02K23/52 ,  H02J7/14 ,  H02P9/14

    CPC分类号： H02M7/493 ,  H02J3/38 ,  H02M5/458 ,  H02P9/00

    摘要： An apparatus for controlling the operation of power conditioners (10) for supplying the generated power to an external power system such as a commercial power system, in which power conditioners (10) are interconnected to an external power system, the power conditioners (10) are interconnected through information exchange means, at least one of the power conditioners (10) monitors the reverse power flow, and the power conditioners (10) exchange the monitor information with information of the other power conditioners (10), thereby equalizing the outputs of all the power conditioners (10). A generator (42) has armature windings (60), and an inverter circuit (13) of the power conditioner (10) provided for each of the armature windings (60) is controlled by cable or radio.

    摘要翻译： 一种用于控制功率调节器（10）的操作的装置，用于向功率调节器（10）互连到外部电力系统的诸如商业电力系统的外部电力系统提供所产生的电力，所述功率调节器（10） 通过信息交换装置互连，所述功率调节器（10）中的至少一个监视所述反向功率流，并且所述功率调节器（10）利用所述其他功率调节器（10）的信息来交换所述监视信息，由此使所述功率调节器 所有功率调节器（10）。 发电机（42）具有电枢绕组（60），并且通过电缆或无线电对每个电枢绕组（60）设置的功率调节器（10）的逆变器电路（13）进行控制。

    Direct current detection circuit
    5.
    发明授权
    Direct current detection circuit 有权
    直流检测电路

    公开(公告)号：US07176673B2

    公开(公告)日：2007-02-13

    申请号：US10901249

    申请日：2004-07-27

    申请人： Yasuhiro Tsubota ,  Nobuyuki Toyoura ,  Masao Mabuchi

    发明人： Yasuhiro Tsubota ,  Nobuyuki Toyoura ,  Masao Mabuchi

    IPC分类号： G01R15/18

    CPC分类号： G01R19/20 ,  H02H3/33

    摘要： A direct current detection circuit has a zero-phase current transformer with source lines inserted therethrough for detecting current differences among them and generates a comparison voltage value based on a divided voltage value obtained between the zero-phase current transformer and a voltage divider resistor according to a change in the self-impedance of the zero-phase current transformer. An offset current is passed through the zero-phase current transformer to make it possible to detect on the basis of the comparison voltage value a direct current value in a range which is otherwise difficult to detect accurately on the basis of the comparison voltage value because of influence of hysteresis characteristic of the zero-phase current transformer. A control circuit detects a present direct current value based on the comparison voltage value and the value of the offset current.

    摘要翻译： 直流检测电路具有零相电流互感器，其源极线插入其中，用于检测它们之间的电流差异，并根据在零相电流互感器和分压电阻器之间获得的分压值产生比较电压值，根据 零相电流互感器的自阻变化。 偏移电流通过零相电流互感器，使得有可能在比较电压值的基础上检测在另外难以准确地基于比较电压值精确检测的范围内的直流电流值，这是由于 零相电流互感器滞后特性的影响。 控制电路基于比较电压值和偏移电流的值来检测当前的直流电流值。

    Direct current detection circuit
    6.
    发明申请
    Direct current detection circuit 有权
    直流检测电路

    公开(公告)号：US20050030005A1

    公开(公告)日：2005-02-10

    申请号：US10901249

    申请日：2004-07-27

    申请人： Yasuhiro Tsubota ,  Nobuyuki Toyoura ,  Masao Mabuchi

    发明人： Yasuhiro Tsubota ,  Nobuyuki Toyoura ,  Masao Mabuchi

    IPC分类号： G01R31/02 ,  G01R15/18 ,  G01R19/20 ,  H01H83/02 ,  H02H3/16 ,  H02H3/347 ,  H02H3/44 ,  G01R1/00

    CPC分类号： G01R19/20 ,  H02H3/33

    摘要： A direct current detection circuit has a zero-phase current transformer with source lines inserted therethrough for detecting current differences among them and generates a comparison voltage value based on a divided voltage value obtained between the zero-phase current transformer and a voltage divider resistor according to a change in the self-impedance of the zero-phase current transformer. An offset current is passed through the zero-phase current transformer to make it possible to detect on the basis of the comparison voltage value a direct current value in a range which is otherwise difficult to detect accurately on the basis of the comparison voltage value because of influence of hysteresis characteristic of the zero-phase current transformer. A control circuit detects a present direct current value based on the comparison voltage value and the value of the offset current.

    摘要翻译： 直流检测电路具有零相电流互感器，其源极线插入其中，用于检测它们之间的电流差异，并根据在零相电流互感器和分压电阻器之间获得的分压值产生比较电压值，根据 零相电流互感器的自阻变化。 偏移电流通过零相电流互感器，使得有可能在比较电压值的基础上检测在另外难以准确地基于比较电压值精确检测的范围内的直流电流值，这是由于 零相电流互感器滞后特性的影响。 控制电路基于比较电压值和偏移电流的值来检测当前的直流电流值。

    Control circuit, power conditioner including the control circuit, and photovoltaic system
    7.
    发明授权
    Control circuit, power conditioner including the control circuit, and photovoltaic system 有权
    控制电路，功率调节器，包括控制电路和光伏系统

    公开(公告)号：US08542504B2

    公开(公告)日：2013-09-24

    申请号：US13028681

    申请日：2011-02-16

    申请人： Masao Mabuchi ,  Mio Miyamoto ,  Naoki Maki ,  Kotaro Nakamura ,  Akiyuki Tsunaga

    发明人： Masao Mabuchi ,  Mio Miyamoto ,  Naoki Maki ,  Kotaro Nakamura ,  Akiyuki Tsunaga

    IPC分类号： H02M1/12

    CPC分类号： H02M7/49 ,  H02M7/797 ,  H02M2007/4835 ,  H03F3/45475 ,  H03F2203/45528 ,  H03F2203/45594 ,  H03F2203/45604 ,  Y02E10/56

    摘要： A power conditioner of a photovoltaic system is configured operate at higher accuracy. A chopper circuit, a capacitor connected in parallel to the chopper circuit, and a control circuit that controls an ON/OFF status of switch elements in the chopper circuit to control charging and discharging of the capacitor are provided. The control circuit includes a measurement control section that measures an inter-end voltage of the capacitor and a control circuit section that performs a predetermined control operation from a measurement output of the measurement circuit section. The measurement circuit section includes a differential amplifier circuit that differentially amplifies the inter-end voltage of the capacitor. The circuit control section calibrates an in-phase component in the output of the differential amplifier circuit as an in-phase error and performs the control from the calibrated output from the differential amplifier circuit.

    摘要翻译： 光伏系统的功率调节器被配置为以更高的精度操作。 提供了一种斩波电路，与斩波电路并联连接的电容器，以及控制电路，该控制电路控制斩波电路中的开关元件的导通/截止状态，以控制电容器的充电和放电。 控制电路包括测量电容器的端电压的测量控制部分和从测量电路部分的测量输出执行预定控制操作的控制电路部分。 测量电路部分包括差分放大电路，差分放大电容器的端间电压。 电路控制部将差分放大器电路的输出中的同相分量校准为同相误差，并从差分放大器电路的校准输出执行控制。

    METHOD FOR DETECTING CAPACITY LEAKAGE OF CAPACITOR IN POWER CONDITIONER, POWER CONDITIONER PERFORMING THE SAME, AND PHOTOVOLTAIC POWER SYSTEM PROVIDED WITH THE SAME
    8.
    发明申请
    METHOD FOR DETECTING CAPACITY LEAKAGE OF CAPACITOR IN POWER CONDITIONER, POWER CONDITIONER PERFORMING THE SAME, AND PHOTOVOLTAIC POWER SYSTEM PROVIDED WITH THE SAME 审中-公开
    用于检测功率调节器中电容器容量泄漏的方法，执行该功能的功率调节器及其相应的光伏电力系统

    公开(公告)号：US20110221281A1

    公开(公告)日：2011-09-15

    申请号：US13035464

    申请日：2011-02-25

    申请人： Mio Miyamoto ,  Masao Mabuchi ,  Kotaro Nakamura

    发明人： Mio Miyamoto ,  Masao Mabuchi ,  Kotaro Nakamura

    IPC分类号： H02J3/38 ,  G05F1/563

    CPC分类号： G01R31/028 ,  G01R31/42 ,  H02M1/32 ,  H02M3/158 ,  H02M2001/007 ,  H02M2001/325 ,  H02M2007/4835 ,  Y02E10/56

    摘要： A photovoltaic power system continues or stops running according to a degree of a detected capacity leakage of a capacitor in a power conditioner of the system. The capacitor in the power conditioner performs power conversion of an output of a photovoltaic cell to output an output power to the system. A method for detecting the capacity leakage of the capacitor includes: detecting the capacity leakage based on a voltage deviation of a charge voltage between both ends of the capacitor of a detection target of the capacity leakage; suppressing the output power when the detected capacity leakage is a capacity leakage in which the running can be continued by the output power suppression; and stopping the photovoltaic power system provided with the power conditioner when the capacity leakage is a capacity leakage in which the running of the system cannot be continued even if the output power is suppressed.

    摘要翻译： 光伏电力系统根据系统的功率调节器中的电容器的检测到的容量泄漏的程度继续或停止运行。 功率调节器中的电容器对光伏电池的输出进行功率转换，以向系统输出输出功率。 用于检测电容器的容量泄漏的方法包括：基于容量泄漏的检​​测对象的电容器的两端之间的充电电压的电压偏差来检测容量泄漏; 当检测到的容量泄漏是能够通过输出功率抑制继续运行的容量泄漏时，抑制输出功率; 并且当容量泄漏是即使输出功率被抑制时系统的运行也不能继续运行的容量泄漏时，停止设置有功率调节器的光伏电力系统。

    Maximum power follow-up control apparatus
    9.
    发明授权
    Maximum power follow-up control apparatus 有权
    最大功率跟踪控制装置

    公开(公告)号：US07045991B2

    公开(公告)日：2006-05-16

    申请号：US10796290

    申请日：2004-03-10

    申请人： Kotaro Nakamura ,  Masao Mabuchi ,  Shinichi Hosomi ,  Hironobu Hisashi

    发明人： Kotaro Nakamura ,  Masao Mabuchi ,  Shinichi Hosomi ,  Hironobu Hisashi

    IPC分类号： H02P9/00 ,  H02P9/02 ,  F02N11/08 ,  H02K29/00 ,  F03D7/00

    CPC分类号： G05F1/67

    摘要： A power conditioner 10 is provided with a maximum power follow-up control portion 12 for setting a DC operating voltage of a power converter 11, which converts output power of a power generator 2 into AC power, for making a power point corresponding to the output level of the power generator follow up with a maximum power point, and comprises an approximate function memory 25 for storing approximate functions related to the maximum power point, a follow-up control portion 34 for making the present power point reach proximate of the maximum power point on the basis of the approximate function, and a hill-climbing method follow-up control portion 35 for making the present power point reach the maximum power point by using a hill-climbing method when the present power point has reached proximate of the maximum power point.

    摘要翻译： 功率调节器10设置有最大功率跟随控制部分12，用于将功率转换器11的直流工作电压设置成将功率发生器2的输出功率转换为交流电力，以便产生与输出相对应的功率点 发电机的电平跟随最大功率点，并且包括用于存储与最大功率点相关的近似功能的近似功能存储器25，用于使当前功率点达到接近最大功率的跟随控制部分34 基于近似功能的点，以及当当前功率点达到最大值接近时使用爬山方法使当前功率点达到最大功率点的爬山方法跟随控制部分35 幻灯片。

    Power conversion apparatus, power conditioner, and power generation system
    10.
    发明授权
    Power conversion apparatus, power conditioner, and power generation system 有权
    电力转换装置，功率调节器和发电系统

    公开(公告)号：US08184462B2

    公开(公告)日：2012-05-22

    申请号：US12710979

    申请日：2010-02-23

    申请人： Masao Mabuchi ,  Yasuhiro Tsubota ,  Takao Mizokami ,  Hideaki Fujita

    发明人： Masao Mabuchi ,  Yasuhiro Tsubota ,  Takao Mizokami ,  Hideaki Fujita

    IPC分类号： H02M7/00 ,  H02M7/02

    CPC分类号： H02M7/49 ,  H02J3/383 ,  Y02E10/563

    摘要： A first chopper circuit generates a first sequence of square wave voltages having a voltage level that changes to a positive side by chopping a direct current voltage at a system frequency. A second chopper circuit generates a second sequence of square wave voltages having a voltage level that changes to a negative side by chopping a direct current voltage at a frequency twice as high as the system frequency. The second chopper circuit further generates a third sequence of square wave voltages having a voltage level that changes to the positive and negative side in turns in the manner of sinusoidal wave by summing the first sequence of square wave voltages and the second sequence of square wave voltages. A third chopper circuit chops the third sequence of square wave voltages at a frequency determined by a timing that depends on if a voltage difference thereof to a sinusoidal wave voltage results in a positive value or a negative value and outputting the chopped third sequence of square wave voltages as a charge/discharge output. The third chopper circuit PWM-controls the charge/discharge output at a PWM frequency so that the difference is corrected to thereby generate a sinusoidal wave voltage that continuously changes to the positive and negative sides.

    摘要翻译： 第一斩波电路通过在系统频率处切断直流电压来产生具有变化到正侧的电压电平的方波电压的第一序列。 第二斩波电路通过以系统频率的两倍的频率斩波直流电压来产生具有变化到负侧的电压电平的第二方波电压序列。 第二斩波电路进一步产生第三顺序的方波电压，其具有通过将第一顺序方波电压和第二次方波电压序列相加而以正弦波的方式依次变化到正侧和负侧的电压电平 。 第三斩波电路以由取决于其与正弦波电压的电压差是否为正值或正负值的定时确定的频率斩波第三次方波电压序列，并输出斩波的第三个方波序列 电压作为充​​放电输出。 第三斩波电路PWM控制PWM频率的充电/放电输出，使得差被校正，从而产生连续改变到正侧和负侧的正弦波电压。