-
公开(公告)号：US06751105B2
公开(公告)日：2004-06-15
申请号：US10204662
申请日：2002-11-18
IPC分类号： H02M112
CPC分类号： H02M7/483 , H02M7/53873 , H02M2007/53876
摘要： For an interval in which an Op-vector and a b-vector are successively output among intervals of output voltage vectors of each phase within a PWM cycle, the output times of each vector are divided by a positive integer m to find divided times of each vector, and the Op-vector and the b-vector are each alternately output for the divided time, each vector being output m times. For an interval in which an On-vector and an a-vector are successively output, the output times of each vector are divided by a positive integer n to find divided times of each vector, and the On-vector and a-vector are each alternately output for the divided time, each vector being output n times. The adoption of this method enables dispersion of the frequency component of current ripple that arises from PWM pulses (1)-(3).
摘要翻译： 对于在PWM周期内每相的输出电压矢量的间隔中连续地输出Op矢量和b矢量的间隔，将各矢量的输出时间除以正整数m，求出各矢量的分割次数 矢量，Op矢量和b矢量分别交替输出分割时间，每个矢量输出m次。 对于连续输出On向量和a向量的间隔，将每个向量的输出时间除以正整数n以找出每个向量的分割次数，并且On向量和a向量分别为 交替输出分割时间，每个矢量输出n次。 采用这种方法可以使由PWM脉冲（1） - （3）产生的电流纹波的频率分量的色散。
-
公开(公告)号：US07042741B2
公开(公告)日：2006-05-09
申请号：US10517658
申请日：2003-05-26
IPC分类号： H02M1/12
CPC分类号： H02M7/487 , H02M1/44 , H02M7/53875 , H02M2007/53876
摘要： It is an object of the invention to provide a PWM inverter control method capable of causing a reduction in a noise and energy saving to be consistent with each other by the reduction in a noise and the limit of the number of switching operations.The invention provides a 2-level PWM inverter control method, in which switching of switching units connected in series is limited by setting the number of switching operations and a timing to output an optional voltage in order not to converge a frequency component of a noise caused by the switching and setting a lower limit to the number of switching operations in order to prevent the number of switching operations from being excessively decreased in that case when an operation frequency of an inverter is low, and increasing the number of switching operations and a set value of the timing in a constant ratio to the operation frequency and setting an upper limit to the number of switching operations in such a manner that the number of switching operations does not exceed a certain set value when the operation frequency of the inverter is increased.
摘要翻译： 本发明的目的是提供一种PWM逆变器控制方法，其能够通过降低噪声和开关次数的限制来使噪声和节能的降低彼此一致。 本发明提供了一种2级PWM逆变器控制方法，其中串联连接的开关单元的切换通过设置开关操作次数和输出可选电压的定时来限制，以便不会使产生的噪声的频率分量收敛 通过切换并设定切换次数的下限，以防止在逆变器的运行频率低的情况下开关动作次数过度减少，并且增加切换动作次数和设定值 以与运算频率恒定的比例设定定时的值，并且在变频器的运转频率增加时，使开关动作次数不超过某个设定值的方式设定开关动作次数的上限。
-
公开(公告)号：US06795323B2
公开(公告)日：2004-09-21
申请号：US10433891
申请日：2003-06-06
IPC分类号： H02M112
CPC分类号： H02M7/487
摘要： On the basis of: a first calculated value ic which is a product of a calculated value of a time of three-phase output voltages in a state where a positive bus, a negative bus, and a neutral line are connected respectively to three-phase phase output terminals, and a predicted neutral current value in the state; and second and third calculated values icx and icy which are products of a calculated value of a time of the three-phase output voltages that can take state 1 where two of the three-phase phase output terminals are connected to the positive bus or the neutral line, and a remaining one terminal is connected to the neutral line or the negative bus, and state 2 opposite to the state, and predicted neutral current values in states 1 and 2, a time ratio of state 1 and 2 during a PWM period is determined so as to make a current flowing through the neutral line close to zero, or a potential of the neutral line of the three-phase output voltages close to a voltage which is exactly the middle between voltages of the positive and negative busses.
-
公开(公告)号：US20060067093A1
公开(公告)日：2006-03-30
申请号：US10517658
申请日：2003-05-26
IPC分类号： H02M1/12
CPC分类号： H02M7/487 , H02M1/44 , H02M7/53875 , H02M2007/53876
摘要： It is an object of the invention to provide a PWM inverter control method capable of causing a reduction in a noise and energy saving to be consistent with each other by the reduction in a noise and the limit of the number of switching operations. The invention provides a 2-level PWM inverter control method, in which switching of switching units connected in series is limited by setting the number of switching operations and a timing to output an optional voltage in order not to converge a frequency component of a noise caused by the switching and setting a lower limit to the number of switching operations in order to prevent the number of switching operations from being excessively decreased in that case when an operation frequency of an inverter is low, and increasing the number of switching operations and a set value of the timing in a constant ratio to the operation frequency and setting an upper limit to the number of switching operations in such a manner that the number of switching operations does not exceed a certain set value when the operation frequency of the inverter is increased.
摘要翻译： 本发明的目的是提供一种PWM逆变器控制方法，其能够通过降低噪声和开关次数的限制来使噪声和节能的降低彼此一致。 本发明提供了一种2级PWM逆变器控制方法，其中串联连接的开关单元的切换通过设置开关操作次数和输出可选电压的定时来限制，以便不会使产生的噪声的频率分量收敛 通过切换并设定切换次数的下限，以防止在逆变器的工作频率低的情况下切换操作的数量过度减少，并且增加切换操作次数和设置 以与运算频率恒定的比例设定定时的值，并且在变频器的运转频率增加时，使开关动作次数不超过某个设定值的方式设定开关动作次数的上限。
-
公开(公告)号：US07031172B2
公开(公告)日：2006-04-18
申请号：US10517534
申请日：2003-06-04
IPC分类号： H02M7/122
摘要： It is an object of the invention to provide a multilevel PWM inverter control apparatus capable of safely carrying out switching from a normal operation to a protecting operation and performing a reset from the protecting operation to the normal run safely and smoothly without requiring a complicated control algorithm.In the invention, if a current value I which is measured is set to have a level which is equal to or higher than the level of a first reference value I1 and is lower than the level of a second reference value I2, a zero vector to be started from an OOO state in which an intermediate potential is output for all of phases is output (Step 22). If the current value I is set to have a level which is equal to or higher than the level of the second reference value I2 and is lower than the level of a third reference value I3, a base block operation for bringing all of switching units into an OFF state is carried out after outputting the zero vector (Step 28). If the current value I is equal to or greater than the third reference value I3, an emergency stop is carried out (Step 29). When a reset to a normal operation is carried out after the execution of the base block operation, the reset to the normal operation is performed after the execution of the operation for outputting the zero vector.
摘要翻译： 本发明的目的是提供一种能够安全地执行从正常操作到保护操作的切换的多电平PWM逆变器控制装置，并且安全平稳地执行从保护操作到正常运行的复位，而不需要复杂的控制算法 。 在本发明中，如果被测量的电流值I被设定为具有等于或高于第一参考值I 1 1的电平并且低于第二参考值I 2的电平的电平 输出从所有相输出中间电位的状态开始的零向量（步骤22），参考值I <2> 。 如果当前值I被设置为具有等于或高于第二参考值I 2 2的电平并且低于第三参考值I 3的电平的电平 在输出零矢量之后，执行将所有切换单元置于OFF状态的基块操作（步骤28）。 如果当前值I等于或大于第三参考值I 3 3，则执行紧急停止（步骤29）。 当在执行基本块操作之后执行复位到正常操作时，在执行用于输出零向量的操作之后执行到正常操作的复位。
-
公开(公告)号：US20060056211A1
公开(公告)日：2006-03-16
申请号：US10517534
申请日：2003-06-04
IPC分类号： H02M7/5387
摘要： It is an object of the invention to provide a multilevel PWM inverter control apparatus capable of safely carrying out switching from a normal operation to a protecting operation and performing a reset from the protecting operation to the normal run safely and smoothly without requiring a complicated control algorithm. In the invention, if a current value I which is measured is set to have a level which is equal to or higher than the level of a first reference value I1 and is lower than the level of a second reference value I2, a zero vector to be started from an OOO state in which an intermediate potential is output for all of phases is output (Step 22). If the current value I is set to have a level which is equal to or higher than the level of the second reference value I2 and is lower than the level of a third reference value I3, a base block operation for bringing all of switching units into an OFF state is carried out after outputting the zero vector (Step 28). If the current value I is equal to or greater than the third reference value I3, an emergency stop is carried out (Step 29). When a reset to a normal operation is carried out after the execution of the base block operation, the reset to the normal operation is performed after the execution of the operation for outputting the zero vector.
摘要翻译： 本发明的目的是提供一种能够安全地执行从正常操作到保护操作的切换的多电平PWM逆变器控制装置，并且安全平稳地执行从保护操作到正常运行的复位，而不需要复杂的控制算法 。
-
公开(公告)号：US08897200B2
公开(公告)日：2014-11-25
申请号：US13121931
申请日：2009-10-28
申请人： Shoji Fukuzawa , Yoshiyuki Tanaka
发明人： Shoji Fukuzawa , Yoshiyuki Tanaka
CPC分类号： H04B7/155 , H04J3/0641 , H04W24/04 , H04W88/085
摘要： When no synchronization signal is transmitted over a system bus (115), a master repeater is arbitrarily selected from a plurality of repeaters (1112 to 111n), starts transmitting a synchronization signal over the system bus (115), and transmits information to the system bus (115) in synchronization with the synchronization signal. Other slave repeaters transmit information to the system bus (115) in synchronization with the synchronization signal transmitted by the master repeater.
摘要翻译： 当没有通过系统总线（115）发送同步信号时，从多个中继器（1112至111n）中任意选择主中继器，开始通过系统总线（115）发送同步信号，并向系统发送信息 总线（115）与同步信号同步。 其他从属中继器与主中继器发送的同步信号同步地向系统总线（115）发送信息。
-
8.发明授权Wireless communication system, wireless communication method thereof, repeater devices and wireless terminal devices 有权无线通信系统，其无线通信方法，中继器设备和无线终端设备公开(公告)号：US08867429B2
公开(公告)日：2014-10-21
申请号：US13121947
申请日：2009-10-28
申请人： Shoji Fukuzawa , Yoshiyuki Tanaka
发明人： Shoji Fukuzawa , Yoshiyuki Tanaka
CPC分类号： H04W48/20 , H04B7/2606 , H04W48/08 , H04W72/0493 , H04W88/08
摘要： Plural repeaters (1111 to 111n) are connected one another via a system bus (115), and each of which detects the state of another repeater by checking a signal transmitted over the system bus (115). When stopping the operation of home repeater (e.g., the repeater (1111)) which performs relaying process among wireless terminal devices (TA) to (TH), a secondary repeater (e.g., the repeater (1112)) set beforehand detects that the home repeater breaks down as the secondary repeater becomes unable to detect the signal over the system bus (115). The secondary repeater responds to the detection and bears the relaying process instead of the home repeater.
摘要翻译： 多个中继器（1111至111n）经由系统总线（115）彼此连接，并且每个中继器通过检查通过系统总线（115）发送的信号来检测另一中继器的状态。 当停止在无线终端装置（TA）至（TH）中执行中继处理的本地中继器（例如，中继器（1111））的操作时，预先设置的次级中继器（例如，中继器（1112））检测到家庭 中继器因次级中继器无法通过系统总线（115）检测到信号而中断。 次级中继器响应检测并承担中继过程，而不是本地中继器。
-
9.发明授权Method for separating arsenic mineral from copper-bearing material with high arsenic grade 有权从砷含量高的含砷材料中分离出砷矿物的方法公开(公告)号：US08685350B2
公开(公告)日：2014-04-01
申请号：US13577353
申请日：2011-02-03
IPC分类号： B03D1/01
CPC分类号： C22B15/0008 , B03D1/01 , B03D1/016 , B03D2201/005 , B03D2201/06 , B03D2203/02
摘要： Disclosed herein is a method for separating an arsenic mineral from a copper-bearing material, including the steps of grinding a copper-bearing material containing arsenic, adding water to the copper-bearing material to prepare a slurry, and adding a flotation agent including a depressant, a frother, and a collector to the slurry and blowing air into the slurry for performing flotation to obtain a copper concentrate, wherein the depressant is a chelator. As the chelator, a polyethyleneamine or the like is used. Particularly, when triethylenetetramine is used as the chelator, the amount of triethylenetetramine to be added is preferably 1 to 10 equivalents relative to the amount of soluble copper generated by oxidation of the copper-bearing material, and the pH of the slurry is more preferably adjusted to 7 or more but 8 or less before the slurry is subjected to the flotation.
摘要翻译： 本发明公开了一种从含铜材料中分离砷矿物的方法，包括以下步骤：研磨含有砷的含铜材料，向含铜材料中加入水以制备浆料，并加入浮选剂，包括 抑制剂，起泡剂和收集剂，并将空气吹入浆料中进行浮选以获得铜精矿，其中抑制剂是螯合剂。 作为螯合剂，使用聚乙烯胺等。 特别是，当使用三亚乙基四胺作为螯合剂时，相对于通过含铜材料的氧化产生的可溶性铜的量，三亚乙基四胺的添加量优选为1〜10当量，更优选调节浆料的pH 在浆料进行浮选之前为7以上且8以下。
-
公开(公告)号：US08610351B2
公开(公告)日：2013-12-17
申请号：US13144599
申请日：2009-12-28
申请人： Yoshiyuki Tanaka , Tsuyoshi Ogi
发明人： Yoshiyuki Tanaka , Tsuyoshi Ogi
摘要： [Problems]Disclosed is a surge absorber which can absorb a surge having a long wave tail, wherein a stable sparkover voltage is obtained without applying a discharging aid to electrodes.[Means for Solving the Problems]The surge absorber is comprised of a pair of terminal electrode members (2) which are opposed to each other; and the insulation tube (3) on which the pair of terminal electrode members (2) are disposed on opposite ends thereof and that has a discharge control gas sealed therein. Bulging electrode elements (4) having an expanded center portion (4a) are formed on the inner surfaces of the terminal electrode members (2). The bulging electrode elements (4) contain metal which can emit more electrons than the terminal electrode members (2).
摘要翻译： [问题]公开了一种浪涌吸收器，其可以吸收具有长波尾的浪涌，其中在不向电极施加放电辅助的情况下获得稳定的火花放电电压。 解决问题的手段浪涌吸收器由一对彼此相对的端子电极构件（2）构成; 以及绝缘管（3），其一对端子电极构件（2）在其两端设置并且具有密封在其中的排出控制气体。 在端子电极构件（2）的内表面上形成具有扩大的中心部分（4a）的膨胀电极元件（4）。 膨胀电极元件（4）包含能够比端子电极构件（2）发射更多的电子的金属。
-
-
-
-
-
-
-
-
-
搜索结果
248 条记录 (耗时 0.03 秒)
