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1. 发明授权

US06344988B2 Power unit 有权
标题翻译：动力单元
公开(公告)号：US06344988B2
公开(公告)日：2002-02-05
申请号：US09771544
申请日：2001-01-29
申请人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
发明人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
IPC分类号： H02M500
CPC分类号： H02M5/271
摘要： A power unit is provided which can perform stable feedback control by reducing a feedback gain, and sufficiently cope with fluctuations in the output voltage occurring according to fluctuations in the input voltage caused by fluctuations in the rotational speed of an engine. A pair of variable control bridge circuits are connected to three-phase output windings of a three-phase generator driven by the engine, and connected in an antiparallel manner to each other to form a cycloconverter for generating a single-phase alternating current to be supplied to a load. A voltage-detecting circuit detects a voltage of the three-phase alternating current. An effective voltage value-calculating circuit calculates an effective value of the voltage of the alternating current. A reference sinusoidal waveform-forming circuit generates a voltage of a reference waveform for controlling the single-phase alternating current. A reference effective voltage value-generating circuit generates a reference effective voltage for controlling the single-phase alternating current. A firing angle control device controls the pair of variable control bridge circuits such that the pair of variable control bridge circuits alternately switch to operate every half a repetition period of the single-phase alternating current, so as to make the effective value of the voltage of the single-phase alternating current closer to a value of the reference effective voltage, and at the same time, make the voltage of the single-phase alternating current closer to the voltage having the reference waveform.
摘要翻译：提供一种功率单元，其可以通过减少反馈增益来执行稳定的反馈控制，并且充分地应对根据由发动机的转速的波动引起的输入电压的波动而产生的输出电压的波动。一对可变控制桥电路连接到由发动机驱动的三相发电机的三相输出绕组，并且以反并联的方式彼此连接，以形成用于产生要供应的单相交流电的循环换流器到一个负载。电压检测电路检测三相交流电压。有效电压值计算电路计算交流电压的有效值。参考正弦波形成电路产生用于控制单相交流电流的参考波形的电压。参考有效电压值产生电路产生用于控制单相交流电的参考有效电压。触发角控制装置控制一对可变控制桥电路，使得该对可变控制电桥电路交替地切换以在单相交流电的每半个重复周期操作，以便使得单相交流电压的有效值为单相交流电流接近参考有效电压的值，同时使单相交流电压更接近具有参考波形的电压。

2. 发明授权

US06219268B1 Power unit 有权
标题翻译：动力单元
公开(公告)号：US06219268B1
公开(公告)日：2001-04-17
申请号：US09505523
申请日：2000-02-17
申请人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
发明人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
IPC分类号： H02M5257
CPC分类号： H02M5/271
摘要： A power unit is provided which is capable of controlling a rise in voltage applied to each of thyristors constituting a cycloconverter even when the output voltage of the power unit undergoes a temporary sharp rise due to characteristics of a load connected thereto. Positive and negative converters of the cycloconverter are connected to three-phase output windings of a three-phase generator and connected in an antiparallel manner to each other for generating a single-phase alternating current to be supplied via a pair of output lines to the load. A firing angle control device causes the positive and negative converters to be alternately switched to operate every half a repetition period of the single-phase alternating current, to thereby cause the cycloconverter to generate the single-phase alternating current. A bridge rectifier is connected between the pair of output lines. An electric energy-storing capacitor circuit is connected to the output of the bridge rectifier, for storing the rectified output therein.
摘要翻译：提供了一种功率单元，其能够控制施加到构成循环换流器的每个可控硅的电压上升，即使当由于与其连接的负载的特性而导致功率单元的输出电压暂时急剧上升。循环换流器的正和负转换器连接到三相发电机的三相输出绕组，并且以反并联的方式彼此连接，以产生将通过一对输出线路供给到负载的单相交流电。触发角控制装置使得正和负转换器交替切换以在单相交流电的重复周期的每半个操作，从而使循环换流器产生单相交流电。桥式整流器连接在一对输出线之间。电力储能电容器电路连接到桥式整流器的输出端，用于存储整流输出。

3. 发明授权

US06320356B1 Power unit 有权
标题翻译：动力单元
公开(公告)号：US06320356B1
公开(公告)日：2001-11-20
申请号：US09506061
申请日：2000-02-17
申请人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
发明人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
IPC分类号： H02M5257
CPC分类号： H02M5/271
摘要： A power unit is provided which is capable of controlling electric current to be supplied to a load connected to the power unit, in a flexible manner in dependence on a load condition. Postive and negative converters of a cycloconver are connected to three-phase output windings of a three-phase generator and connected in an antiparallel manner to each other for generating a single-phase alternating current to be supplied to the load. A firing angle control device causes the positive and negative converters to be alternately switched to operate every half a repetition period of the single-phase alternating current, to thereby cause the cycloconverter to generate the single-phase alternating current. A desired wave-forming circuit forms a desired waveform of a drive signal input to the firing angle control device, for causing the firing angle control device to drive the positive and negative converters, such that the output single-phase alternating current has a desired alternating current waveform. An amplitude control circuit changes a shape of the desired waveform in dependence on variation in the load so as to stabilize an output voltage of the cycloconverter. An amplitude-limiting circuit limits amplitude of the desired waveform to a smaller value when the output voltage of the cycloconverter becomes equal to or lower than a predetermined value.
摘要翻译：提供能够根据负载条件以灵活的方式控制供给连接到动力单元的负载的电流的动力单元。循环绕组的负转换器和负转换器连接到三相发生器的三相输出绕组，并且以反并联的方式彼此连接，以产生供给负载的单相交流电。触发角控制装置使得正和负转换器交替切换以在单相交流电的重复周期的每半个操作，从而使循环换流器产生单相交流电。期望的波形形成电路形成输入到触发角控制装置的驱动信号的期望波形，用于使点火角控制装置驱动正转换器和负转换器，使得输出单相交流电具有期望的交替电流波形。振幅控制电路根据负载的变化来改变所需波形的形状，以便稳定循环换流器的输出电压。当循环变换器的输出电压变得等于或低于预定值时，限幅电路将期望波形的振幅限制在较小的值。

4. 发明授权

US06362537B1 Power unit 有权
公开(公告)号：US06362537B1
公开(公告)日：2002-03-26
申请号：US09771543
申请日：2001-01-29
申请人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
发明人： Koichi Asai , Motohiro Shimizu , Hiroyuki Eguchi
IPC分类号： F02N1106
摘要： A power unit is provided which can perform stable feedback control by reducing a feedback gain, and sufficiently cope with fluctuations in the output voltage occurring according to fluctuations in the input voltage caused by fluctuations in the rotational speed of an engine. A pair of variable control bridge circuits are connected to three-phase output windings of a three-phase generator driven by the engine, and connected in an antiparallel manner to each other to form a cycloconverter for generating a single-phase alternating current to be supplied to a load. An effective voltage value-detecting circuits detects an effective value of a voltage of the alternating current. A reference effective voltage value-generating circuit generates a reference effective voltage for controlling the single-phase alternating current. A target wave-forming circuit forms a target wave for making the effective value of the voltage closer to a value of the reference effective voltage. A firing angle control device performs switching control of the variable control bridge circuits, based on the target wave, such that the variable control bridge circuits are alternately switched to operate every half a repetition period of the alternating current. A rotational fluctuation-detecting circuit detects fluctuations in a rotational speed of the engine in a rotation cycle thereof. A gain-adjusting circuit generates a reverse characteristic signal having a characteristic reverse to a characteristic of the fluctuations in the rotational speed of the engine. A comparator corrects amplitude of the target wave based on the reverse characteristic signal.

5. 发明授权

US07612542B2 Power unit 失效
标题翻译：动力单元
公开(公告)号：US07612542B2
公开(公告)日：2009-11-03
申请号：US11661653
申请日：2005-08-05
申请人： Hiroyuki Eguchi , Motohiro Shimizu
发明人： Hiroyuki Eguchi , Motohiro Shimizu
IPC分类号： G05F1/00
CPC分类号： H02M5/4585 , H02M3/156 , H02M3/33584 , H02M5/458 , H02M2001/007
摘要： This invention realizes control without using a current-detecting element to prevent over current from flowing into a switching element of a switching converter in response to an input primary voltage from a small-capacity DC power source. The switching converter includes an FET 30 that turns the input primary voltage from the DC power source 1 on and off, and a choke coil 31 that is charged or discharged according to turning on/off of this FET 30. A driver 13 drives the FET so that an output voltage detected by an output voltage detector 9 is converged to a target voltage. A means for calculating a current I that flows into the FET 30 based on a duty ratio of the input primary voltage and the FET 30 and the inductance of the choke coil 31. The driver 13 drives the FET 30 at a duty ratio set so as to prevent the estimated current value I from exceeding a permissible current value or stops driving when the estimated current value I is equal to or more than the permissible current value.
摘要翻译：本发明实现了控制，而不使用电流检测元件来防止过电流响应于来自小容量DC电源的输入初级电压流入开关转换器的开关元件。开关转换器包括：FET30，其使来自直流电源1的输入初级电压接通和断开;以及扼流线圈31，其根据该FET 30的导通/截止而被充电或放电。驱动器13驱动FET 使得由输出电压检测器9检测的输出电压被收敛到目标电压。用于基于输入一次电压和FET 30的占空比以及扼流线圈31的电感来计算流入FET 30的电流I的装置。驱动器13以设定的占空比驱动FET 30，为了防止估计电流值I超过允许电流值，或者当估计电流值I等于或大于容许电流值时停止驱动。

6. 发明申请

US20080068870A1 Power Unit 失效
标题翻译：动力单元
公开(公告)号：US20080068870A1
公开(公告)日：2008-03-20
申请号：US11661653
申请日：2005-08-05
申请人： Hiroyuki Eguchi , Motohiro Shimizu
发明人： Hiroyuki Eguchi , Motohiro Shimizu
IPC分类号： H02M5/458
CPC分类号： H02M5/4585 , H02M3/156 , H02M3/33584 , H02M5/458 , H02M2001/007
摘要： This invention realizes control without using a current-detecting element to prevent over current from flowing into a switching element of a switching converter in response to an input primary voltage from a small-capacity DC power source. The switching converter includes an FET 30 that turns the input primary voltage from the DC power source 1 on and off, and a choke coil 31 that is charged or discharged according to turning on/off of this FET 30. A driver 13 drives the FET so that an output voltage detected by an output voltage detector 9 is converged to a target voltage. A means for calculating a current I that flows into the FET 30 based on a duty ratio of the input primary voltage and the FET 30 and the inductance of the choke coil 31. The driver 13 drives the FET 30 at a duty ratio set so as to prevent the estimated current value I from exceeding a permissible current value or stops driving when the estimated current value I is equal to or more than the permissible current value.
摘要翻译：本发明实现了控制，而不使用电流检测元件来防止过电流响应于来自小容量DC电源的输入初级电压而流入开关转换器的开关元件。开关转换器包括：FET30，其使来自直流电源1的输入初级电压接通和断开;以及扼流线圈31，其根据该FET 30的导通/截止而被充电或放电。驱动器13驱动FET 使得由输出电压检测器9检测的输出电压被收敛到目标电压。用于基于输入一次电压和FET 30的占空比以及扼流线圈31的电感来计算流入FET 30的电流I的装置。驱动器13以设定的占空比驱动FET 30，为了防止估计电流值I超过允许电流值，或者当估计电流值I等于或大于容许电流值时停止驱动。

7. 发明授权

US07615878B2 Cogeneration apparatus 有权
标题翻译：热电联产机
公开(公告)号：US07615878B2
公开(公告)日：2009-11-10
申请号：US11575342
申请日：2005-08-19
申请人： Motohiro Shimizu , Toshimitsu Takaishi , Hiroyuki Eguchi
发明人： Motohiro Shimizu , Toshimitsu Takaishi , Hiroyuki Eguchi
IPC分类号： H02K23/52 , B60L1/02 , F01K15/00 , F01K17/02 , F02C6/00 , F02C6/18
CPC分类号： F02D29/06 , F01N5/02 , F02G5/02 , F02G2280/20 , H02J9/08 , Y02E20/14 , Y02T10/16 , Y02T10/166
摘要： A cogeneration system that is operated in system connection is disconnected from the system and operated independently at a power failure of the system. A power generator 1 driven by an engine E is connected to a system 9. A water-cooling device 13 recovers exhaust heat of the engine E. When an operating switch 20 is switched, to its independent operation mode for an independent operation apart from the system 9, the upper limit of the target rotation speed Ntgt of an electronic governor 16 is increased over that at system connection operation, thereby the engine speed can be increased, and the maximum output point of the power generator 1 is increased for operation. When a power failure of the system 9 is detected by a power failure detecting unit 21, an operation mode judging unit 19 outputs a judgment result similar to that at the moment when the independent operation mode is instructed and increases the upper limit of the target engine speed Ntgt, and turns off a connection switch 7 to disconnect the system connection.
摘要翻译：在系统连接中运行的热电联系系统与系统断开连接并在系统断电时独立运行。由发动机E驱动的发电机1连接到系统9.水冷装置13回收发动机E的排气热。当操作开关20切换到独立运行模式以独立运行时，除了系统9中，电子调速器16的目标转速Ntgt的上限超过系统连接动作的上限，能够提高发动机转速，并且增加发电机1的最大输出点。当由电源故障检测单元21检测到系统9的电源故障时，操作模式判断单元19输出与指示独立操作模式时相同的判断结果，并增加目标引擎的上限速度Ntgt，并关闭连接开关7以断开系统连接。

8. 发明申请

US20070029799A1 Power supply device 审中-公开
标题翻译：电源设备
公开(公告)号：US20070029799A1
公开(公告)日：2007-02-08
申请号：US10570506
申请日：2004-07-06
申请人： Motohiro Shimizu , Hiroyuki Eguchi
发明人： Motohiro Shimizu , Hiroyuki Eguchi
IPC分类号： H02K7/18 , G06F1/00 , F02B63/04
CPC分类号： H02M1/10 , F02D29/06 , H02J1/10 , H02J7/0068 , H02J7/34 , H02M3/33592 , Y02B70/1475
摘要： In a power supply apparatus having an engine operated generator, the operation of the power supply apparatus is improved in the efficiency in a light load region. The generator 1 is driven by the engine. The output of the generator 1 is converted into alternating power of a particular frequency by a rectifier circuit 2 and a converter 4 and is output to a load. A two-way DC-DC converter 5 supplies the power of a battery 6 to the converter 4. When a load current is equal to or less than a predetermined value, the power generated by the battery 6 is supplied to the load, and the power generated by the generator 1 is not used. If the power supply ability of the battery 6 is lowered, the power generated by the generator 1 is supplied to the load, and the battery 6 is charged.
摘要翻译：在具有发动机运转的发电机的电力供给装置中，电力供给装置的动作在轻负荷区域的效率上得到提高。发电机1由发动机驱动。发电机1的输出由整流电路2和转换器4转换为特定频率的交流功率，并输出到负载。双向DC-DC转换器5将电池6的电力提供给转换器4.当负载电流等于或小于预定值时，电池6产生的电力被提供给负载，并且由发电机1产生的电力不被使用。如果电池6的供电能力降低，则由发电机1产生的电力被供给到负载，电池6被充电。

9. 发明申请

US20050173985A1 Power supply apparatus 审中-公开
标题翻译：电源设备
公开(公告)号：US20050173985A1
公开(公告)日：2005-08-11
申请号：US11046827
申请日：2005-02-01
申请人： Hiroyuki Eguchi , Motohiro Shimizu
发明人： Hiroyuki Eguchi , Motohiro Shimizu
IPC分类号： H02J7/34 , H01M10/44 , H01M10/48 , H02J7/14 , H02P9/04 , B60L3/00
CPC分类号： H02J7/1415 , H02J7/1438 , H02J7/1461
摘要： The power supply apparatus is directed to enable a battery to be properly controlled for charging/discharging. A detection unit 21 detects battery voltage V, battery current I and battery ambient temperature T. A battery capacity calculation device 23 and a discharging rate calculation unit 25 estimate battery capacity and discharging rate respectively. A discharge-allowable-duration calculation unit 26 calculates discharge-allowable-duration. This discharge-allowable-duration is used for restriction the discharge-duration of the battery 6. The battery 6 is charged with the output of the generator. Charging current is restricted in accordance with upper-limit-charging-current that is calculated in an upper-limit-charging-current calculation unit 27.
摘要翻译：电源装置被引导以使电池能够被适当地控制用于充电/放电。检测单元21检测电池电压V，电池电流I和电池环境温度T.电池容量计算装置23和放电率计算单元25分别估计电池容量和放电速率。放电允许持续时间计算单元26计算放电容许持续时间。该放电允许持续时间用于限制电池6的放电持续时间。电池6用发电机的输出充电。根据在上限充电电流计算单元27中计算的上限充电电流来限制充电电流。

10. 发明申请

US20080259666A1 Power Unit 失效
标题翻译：动力单元
公开(公告)号：US20080259666A1
公开(公告)日：2008-10-23
申请号：US11576184
申请日：2005-09-15
申请人： Hiroyuki Eguchi , Motohiro Shimizu
发明人： Hiroyuki Eguchi , Motohiro Shimizu
IPC分类号： H02M7/537
CPC分类号： H02J9/062 , H02J7/34 , H02M3/33584
摘要： The invention makes it possible to secure a maximum output within the capacity range of an electrical power source by preventing an output from being cut by a protective function of a converter at the time of a temporary overload. A bidirectional DC-DC converter 4 for stepping up a voltage of DC power supplied from a battery 5 is provided. A stepped-up DC power is converted to an AC power by an inverter 3-2 via a regulator 3-1 and is outputted to the load side. An input voltage V1 of the regulator 3-1 is detected by a voltage detecting portion 15 and is inputted into an output limit determining portion 16. The output limit determining portion 16 determines an output voltage value for starting to limit an inverter output according to a distance from when the input voltage V1 fell below a limit starting voltage value Vlim to a limit voltage value Va. An inverter driving portion 17 limits an output by switching FETs in the inverter 3 in accordance with this output voltage value. When a temporary overload is eliminated, then the output recovers to a maximum value.
摘要翻译：本发明可以通过在临时过载时防止输出被转换器的保护功能切断而在电源的容量范围内确保最大输出。提供了用于提高从电池5供给的直流电力的电压的双向DC-DC转换器4。升压直流电源通过调节器3-1由逆变器3-2转换为交流电力，并输出到负载侧。调节器3-1的输入电压V 1由电压检测部分15检测，并被输入到输出限制确定部分16。输出限制确定部分16根据从输入电压V 1低于极限电压值Vlim到极限电压值Va的距离来确定用于开始限制逆变器输出的输出电压值。逆变器驱动部分17限制通过根据该输出电压值切换逆变器3中的FET的输出。当消除临时过载时，输出恢复到最大值。

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