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1. 发明专利

JP2009023368A Feeder voltage compensating device 审中-公开
标题翻译：进料电压补偿装置
公开(公告)号：JP2009023368A
公开(公告)日：2009-02-05
申请号：JP2007185172
申请日：2007-07-17
申请人： Meidensha Corp , 株式会社明電舎
发明人： ONO MASAAKI
IPC分类号： B60M3/02 , H02J3/12 , H02J3/18
CPC分类号： Y02E40/30
摘要： PROBLEM TO BE SOLVED: To solve the problem that when a voltage is compensated by a feeder voltage compensating device of an alternating current electric railway, there may be generated an overvoltage in the feeder due to a response delay of an inverter. SOLUTION: An overvoltage detection circuit for detecting the overvoltage in which a vehicle is made to have a regeneration invalidated voltage is provided at the output side of a voltage detection circuit of the feeder, and the operation of the inverter is stopped when the overvoltage is detected. Further, a rest period setting part is provided at the output side of the overvoltage detection circuit. By this rest period setting part, even if an overvoltage detection signal no longer exists, the operation of the inverter is stopped for a certain period of time. Furthermore, a reactive power command value restriction part is provided at the output side of the overvoltage detection circuit. When the overvoltage detection signal no longer exists, a reactive power command of the inverter is controlled to be recovered gradually from zero. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决当由交流电气铁路的馈电电压补偿装置补偿电压时，由于逆变器的响应延迟可能在馈线中产生过电压的问题。解决方案：在供电器的电压检测电路的输出侧设置有用于检测车辆具有再生无效电压的过电压的过电压检测电路，并且当所述过电压检测电路检测到过电压。此外，在过电压检测电路的输出侧设置有休止期设定部。通过该休止期设定部，即使过电压检测信号不再存在，逆变器的动作停止一定时间。此外，在过电压检测电路的输出侧设置无功功率指令值限制部。当过电压检测信号不再存在时，逆变器的无功功率指令被控制为从零开始逐渐恢复。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2009023369A Feeder voltage compensating device for dc railroad 审中-公开
标题翻译：用于直流轨道的馈电电压补偿装置
公开(公告)号：JP2009023369A
公开(公告)日：2009-02-05
申请号：JP2007185173
申请日：2007-07-17
申请人： Meidensha Corp , 株式会社明電舎
发明人： HIRAMATSU MASANORI , ONO MASAAKI
IPC分类号： B60M3/02 , H02J7/34
摘要： PROBLEM TO BE SOLVED: To reduce energy when more electric power is needed by connecting an electric double-layer capacitor directly to a feeder when the electric double-layer capacitor is connected to the feeder, and electric energy is charged and discharged via the electric double-layer capacitor when the feeder voltage fluctuates.
SOLUTION: A charge and discharge part constituted by connecting a diode and a switch in parallel between the feeder and the electric double-layer capacitor is provided. Further, a switch circuit is provided for detecting that the feeder voltage has been lowered to a prescribed voltage value. When a switch circuit generates an output signal, the switch is turned on, and electric energy accumulated in the electric double-layer capacitor is discharged to the feeder via the switch.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：当双电层电容器连接到馈线时，为了在需要更多电力来将电双层电容器直接连接到馈线时减少能量，并且电能通过当馈电电压波动时，双电层电容器。解决方案：提供了通过在馈电器和双电层电容器之间并联连接二极管和开关构成的充电和放电部分。此外，提供了用于检测馈电电压已经降低到规定电压值的开关电路。当开关电路产生输出信号时，开关导通，蓄积在双电层电容器中的电能通过开关放电到馈线。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2011024367A Feeding voltage compensator 有权
标题翻译：进料电压补偿器
公开(公告)号：JP2011024367A
公开(公告)日：2011-02-03
申请号：JP2009168813
申请日：2009-07-17
申请人： Meidensha Corp , 株式会社明電舎
发明人： ONO MASAAKI
IPC分类号： H02J3/16 , B60M3/02 , H02J3/18
CPC分类号： Y02E40/34
摘要： PROBLEM TO BE SOLVED: To provide a feeding voltage compensator which can suppress troubles caused by an inrush current. SOLUTION: The feeding voltage compensator equipped in an AC electric railway system including a series capacitor 3M(3T) having one end connected with a Scott transformer 1 and a feeder 2M(2T) connected with the other end of the series capacitor 3M(3T) is further provided with a load current detector 8M(8T), a feeding voltage detector 10M(10T), a transformer 5M(5T), an inverter 6M(6T), and a control unit 50M(50T) which calculates the reactive power based on the voltage detected by the feeding voltage detector 10M(10T) and the current detected by the load current detector 8M(8T), and issues an instruction so that an inverter 6M(6T) does not operate when the reactive power has a phase lead ahead of the voltage of the feeder 2M(2T). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制由浪涌电流引起的故障的馈电电压补偿器。
解决方案：配备在交流电气铁路系统中的馈电电压补偿器，包括具有与Scott变压器1连接的一端的串联电容器3M（3T）和与串联电容器3M的另一端连接的馈线2M（2T）（3T）还设置有负载电流检测器8M（8T），馈电电压检测器10M（10T），变压器5M（5T），逆变器6M（6T）以及控制单元50M（50T）基于由馈电电压检测器10M（10T）检测到的电压和由负载电流检测器8M（8T）检测到的电流的无功功率，并且发出指令，使得当无功功率具有时，逆变器6M（6T）不工作在馈线2M（2T）的电压之前的相位超前。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2008120240A Feeder voltage compensating device 有权
标题翻译：进料电压补偿装置
公开(公告)号：JP2008120240A
公开(公告)日：2008-05-29
申请号：JP2006306095
申请日：2006-11-13
申请人： Meidensha Corp , 株式会社明電舎
发明人： ONO MASAAKI
IPC分类号： B60M3/02 , G05F1/70 , H02J3/12 , H02J3/18
CPC分类号： Y02E40/30
摘要： PROBLEM TO BE SOLVED: To provide a feeder voltage compensating device not affected by a DC voltage component generated in a series capacitor by a DC component of a vehicle incoming current. SOLUTION: The feeder voltage compensating device is provided with a feeder transformer 1 for converting three-phase AC power into power of single phase double seat, the series capacitor 3 T interposed by a circuit connecting a T seating on a secondary side of the feeder transformer 1 and an electric wire 2 T , a series capacitor 3 M interposed by a circuit connecting a M seating on the secondary side of the feeder transformer 1 and an electric wire 2 M , and includes a voltage compensating device 20 connected between a common connection point 5 T of the T seating of the feeder transformer 1 and the series capacitor 3 T and a common connection point 5 M of the M seating of the feeder transformer 1 and the series capacitor 3 M , having single phase inverters 12 T , 12 M , transformers for inverter 11 T , 11 M , and a DC capacitor 13, and having a compensating function of reactive power and a three-phase balancing function of effective power to compensate voltages of the feeders 2 T , 2 M . COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供不受由车辆进入电流的直流分量在串联电容器中产生的直流电压分量影响的馈电电压补偿装置。
解决方案：馈电电压补偿装置具有用于将三相交流电转换成单相双座电源的馈电变压器1，串联电容器3 T 在馈电变压器1的次级侧的T座和电线2 T ，串联电容器3 M 馈线变压器1和电线2 M ，并且包括电压补偿装置20，其连接在馈电变压器1的T座的公共连接点5 T 和馈电变压器1的M座和串联电容器3 M 的串联电容器3 T 和公共连接点5 M ，具有单相逆变器12＆lt; SB＆gt;，12＆lt; SB＆gt; M＆lt; / SB＆gt;用于逆变器11的变压器，SB < 具有无功功率和三相功能的补偿功能 e有效功率的平衡功能，用于补偿馈线2的电压，2 M 。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007300768A Transformer-less inverter apparatus 有权
标题翻译：无变压器逆变器装置
公开(公告)号：JP2007300768A
公开(公告)日：2007-11-15
申请号：JP2006128787
申请日：2006-05-08
申请人： Meidensha Corp , 株式会社明電舎
发明人： OI KAZUNOBU , ONO MASAAKI
IPC分类号： H02M7/523
摘要： PROBLEM TO BE SOLVED: To reduce burden of a filter capacitor removing noise, to prolong life of the filter capacitor, to miniaturize it, and to prevent influence of noise to a load. SOLUTION: An inverter 2 converts DC power from a DC power supply 1 into AC power, and it is supplied to the load 5 without transformer. The star-connected filter capacitors 4 are installed between the inverter 2 and the load 5. A neutral point of the filter capacitor 4 and an intermediate point of the DC power supply 1 are connected by a neutral wire 10. A first parallel LC resonance circuit 12 where a resonance frequency is a frequency of current distortion and is a tertiary harmonic of an output frequency of the inverter 2 is arranged in the neutral wire 10. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了减轻滤波电容器消除噪声的负担，延长滤波电容器的寿命，使其小型化，并防止噪声对负载的影响。解决方案：逆变器2将来自直流电源1的直流电力转换为交流电力，并将其提供给没有变压器的负载5。星形连接的滤波电容器4安装在逆变器2和负载5之间。滤波电容器4的中性点和直流电源1的中间点通过中性线10连接。第一并联LC谐振电路 12，其中谐振频率是电流失真的频率，并且是逆变器2的输出频率的三次谐波被布置在中性线10中。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2009056907A Electric railroad regenerative power absorber 有权
标题翻译：电动雷达再生电力吸收器
公开(公告)号：JP2009056907A
公开(公告)日：2009-03-19
申请号：JP2007225036
申请日：2007-08-31
申请人： Meidensha Corp , 株式会社明電舎
发明人： OI KAZUNOBU , ONO MASAAKI
IPC分类号： B60M3/06
摘要： PROBLEM TO BE SOLVED: To solve the problem that an electric railroad regenerative power absorber which allows a power consuming resistor to absorb and consume regenerative electric power via many choppers connected in parallel with one another stops the whole device, since only a damaged chopper cannot be parallel off when switching elements used in the choppers are damaged. SOLUTION: As a power consuming resistor to be connected to the choppers, a resistor designed at short-time rating having a self-disconnection function is used. When the switching element is damaged, the parallel-off is started from the regenerative power absorber with the power consuming resistor having the self-disconnection function by a short-circuit current. Otherwise, a circulating diode of the choppers is connected in reversely parallel with the short-circuit switching element, and when the switching element is damaged, the short-circuit switching element is kept to be on, thus allowing the short-circuit current to flow to a fuse to blow it down. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题为了解决能够消耗电力消耗电力的电力线路再生电力吸收体通过彼此并联连接的许多切断器吸收并消耗再生电力的问题，停止整个装置，因为只有损坏的当切断器中使用的开关元件损坏时，切碎机不能平行。
解决方案：作为与斩波器连接的功耗电阻器，使用以短时间额定值设计的具有自我断开功能的电阻器。当开关元件损坏时，由具有自我断开功能的功率消耗电阻器通过短路电流从再生功率吸收器开始并联断开。否则，斩波器的循环二极管与短路开关元件反向并联，并且当开关元件损坏时，短路开关元件保持导通，从而允许短路电流流动一个保险丝将其吹灭。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008074183A Regenerative power absorption system for direct current electric railroad system 有权
标题翻译：用于直流电动铁路系统的再生电力吸收系统
公开(公告)号：JP2008074183A
公开(公告)日：2008-04-03
申请号：JP2006253743
申请日：2006-09-20
申请人： Meidensha Corp , 株式会社明電舎
发明人： OI KAZUNOBU , ONO MASAAKI
IPC分类号： B60M3/06
摘要： PROBLEM TO BE SOLVED: To surely absorb regenerative power and reduce wasteful power consumption even when an electric vehicle is situated apart from an electric absorption device.
SOLUTION: Automatic voltage control of an electric absorption device 5 is executed by detecting feeder voltage by voltage detectors 6
1 -6
5 dispersed and arranged along a feeder, obtaining a maximum value of respective feeder voltages with a comparator 7 and taking the maximum value as a voltage detection value. The electric absorption device determines existence and nonexistence of regenerative operation of the electric vehicle from output current of a rectifier 3 for feeding, switches regenerative operation voltage to a low value during the regenerative operation, and transmits to a rear-stage voltage detector the higher one of voltages of respective voltage detectors by being linked to one another with a signal wire. Each voltage detector is mounted only in a wire position such as a station, acute curved part and downward gradient section, where the deceleration operation of an electric vehicle is expected.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使当电动车辆与电吸收装置分开时，也可以确实地吸收再生电力并减少浪费的功率消耗。解决方案：通过沿着馈线分散和布置的电压检测器6 -6 5 检测馈电电压来执行电吸收装置5的自动电压控制，获得与比较器7相应的馈电电压的最大值，并将最大值作为电压检测值。电吸收装置根据用于馈电的整流器3的输出电流确定电动车辆的再生操作的存在和不存在，并且在再生操作期间将再生操作电压切换到低值，并将其发送到后级电压检测器各个电压检测器的电压通过信号线相互连接。每个电压检测器仅安装在诸如车站，急弯部分和下坡面部分的电线位置，其中期望电动车辆的减速操作。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006230028A Method of compensating current of active filter 审中-公开
标题翻译：补偿有源过滤器电流的方法
公开(公告)号：JP2006230028A
公开(公告)日：2006-08-31
申请号：JP2005037045
申请日：2005-02-15
申请人： Meidensha Corp , 株式会社明電舎
发明人： ONO MASAAKI
IPC分类号： H02M1/12 , H02J3/01
摘要： PROBLEM TO BE SOLVED: To perform accurate compensation even in case that the frequency of a power system shifts from rated frequency, in an active filter which compensates specified frequency components, using a band-pass filter. SOLUTION: A phase shifter 12 adjusts the phase of a frequency signal extracted with a band-pass filter 11. A frequency change detecting circuit 13 detects the shift of the frequency of a system power source, and controls the quantity of phase shift of the phase shifter, according to the quantity of this frequency shift. Hereby, it compensates the phase shift generated in the detected signal caused by the property of the band-pass filter 11. It includes adjusting the pass region center frequency of the band-pass filter itself, according to the shift of the rated frequency of the system power source. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使在电力系统的频率从额定频率偏移的情况下，也可以使用带通滤波器在补偿指定频率分量的有源滤波器中进行精确补偿。解决方案：移相器12调整用带通滤波器11提取的频率信号的相位。频率变化检测电路13检测系统电源的频率偏移，并控制相移量的移相器，根据该频移的数量。因此，它补偿由带通滤波器11的特性引起的检测信号中产生的相移。它包括根据频带滤波器的额定频率的偏移来调整带通滤波器本身的通过区域中心频率系统电源。版权所有（C）2006，JPO＆NCIPI

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