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    • 4. 发明授权
    • Automated power feeder restoration system and method
    • 自动供电器恢复系统及方法
    • US5973899A
    • 1999-10-26
    • US151383
    • 1998-09-10
    • Bradley R. WilliamsC. Thomas Eyford, IIIDean H. Miller
    • Bradley R. WilliamsC. Thomas Eyford, IIIDean H. Miller
    • H02H3/06H02H7/30H02H7/26
    • H02H7/30H02H3/063H02J3/006Y04S10/525
    • A feeder restoration method starts in response to an overcurrent fault on a feeder (22) that causes a circuit breaker (42) to trip open, reclose once, trip again, and attempt to reclose again. During the time period between the first and second reclosings, any remote sectionalizing switches (46) on the faulty feeder are opened if they have also sensed the overcurrent fault, and a substation processor (50) evaluates the status of the faulty feeder and an alternate feeder (32, 34). After the second trip of the circuit breaker, the processor verifies whether the remote sectionalizing switch was closed and a remote tie switch (40) to the alternate feeder was open. If the circuit breaker locks open, the substation processor determines whether the remote sectionalizing switch did not sense the overcurrent condition (which indicates that the fault is between the circuit breaker and the sectionalizing switch) or simply failed to open. The processor then verifies that the remote sectionalizing switch voltage is zero and opens the switch. The processor next determines whether the alternate feeder and its associated transformer (30) and circuit breaker (44) can pick up the dropped load, and if they can, the substation processor modifies the alternate circuit breaker trip current settings to accommodate the new total load plus a surge current and closes the remote tie switch to transfer the load to the alternate feeder.
    • 馈线恢复方法响应于馈电器(22)上的过电流故障而开始,导致断路器(42)跳闸打开,重新闭合一次,再次跳闸,并尝试重新闭合。 在第一和第二重合闸之间的时间段期间,如果故障进给器上的任何远程分段开关(46)也已经检测到过电流故障,并且变电站处理器(50)评估故障馈线的状态, 进料器(32,34)。 在断路器的第二次跳闸之后,处理器验证远程分段开关是否关闭,并且与替代进料器的远程联动开关(40)打开。 如果断路器锁定,变电站处理器确定远程分段开关是否没有感测到过电流条件(表明故障位于断路器和分段开关之间)或者简单地不能打开。 然后处理器验证远程分段开关电压为零并打开开关。 接下来,处理器确定替代馈线及其相关联的变压器(30)和断路器(44)是否可以拾取掉落的负载,并且如果可以,变电站处理器修改备用断路器跳闸电流设置以适应新的总负载 加上浪涌电流并关闭远程连接开关以将负载传送到备用馈线。
    • 5. 发明授权
    • Automated voltage and VAR control in power transmission and distribution
networks
    • 输配电网络中的自动电压和VAR控制
    • US5422561A
    • 1995-06-06
    • US980385
    • 1992-11-23
    • Bradley R. WilliamsRichard C. KrauseBryan H. PhamDennis A. Eastman
    • Bradley R. WilliamsRichard C. KrauseBryan H. PhamDennis A. Eastman
    • H02J3/18G05F1/70
    • H02J3/1821Y02E40/30Y10T307/406
    • Controlling a customer voltage and VAR flow in a power transmission and distribution system includes measuring first voltages in a power line directed to a first location related to customers. Both the customer voltage and the VAR flow for the network is determined in relation to the number of capacitors associated with the first location which are switched in or out of the network. The measured voltages are communicated to a voltage control. Voltage deviations of the measured first voltage are determined relative to a predetermined voltage range intended to be present at the first locations. Switching the capacitor means into or out of the network is determined by the voltage control in accordance with a voltage rise table. A VAR flow controller is responsive to the voltage at the first locations, the effect of the VAR generation by the capacitors and the change of VAR generation by the capacitor. A decrease in voltage at the customers saves energy use. A decrease in the VAR generated upstream of the customer results in greater efficiency of energy generation.
    • 控制输电和配电系统中的客户电压和VAR流量包括测量指向与客户相关的第一位置的电力线路中的第一电压。 客户电压和网络的VAR流都相对于与第一个位置相关联的电容器的数量来确定,这些电容器被切换进出网络。 测量的电压被传送到电压控制。 测量的第一电压的电压偏差相对于预期存在于第一位置的预定电压范围来确定。 通过根据电压上升表的电压控制来确定电容器装置进入或离开网络的方式。 VAR流量控制器响应于第一位置处的电压,电容器产生的VAR的影响以及电容器产生的VAR变化。 客户的电压降低节省能源。 客户上游产生的VAR的减少导致更高的能量产生效率。