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    • 4. 发明申请
    • AUTOMATIC IDENTIFICATION OF MULTIPLE POWER GRIDS USING DATA SYNCHRONIZATION
    • 使用数据同步自动识别多个功率网格
    • US20110004324A1
    • 2011-01-06
    • US12496301
    • 2009-07-01
    • Jon A. BickelRonald W. Carter
    • Jon A. BickelRonald W. Carter
    • G05B19/042
    • H02J13/0093G01D4/002H02J13/0017H04Q9/00H04Q2209/60H04Q2209/823Y02B90/241Y02B90/244Y02E60/724Y02E60/74Y02E60/7807Y04S10/18Y04S10/30Y04S20/32Y04S20/327Y04S20/48Y04S40/12
    • A method of automatically identifying whether intelligent electronic devices (IEDs) in a power monitoring system are in multiple electrical grids. A controller sends an instruction to each IED in a predetermined time sequence such that each IED receives the instruction at a different time, commanding each IED to begin logging variation data indicative of frequency variations in a current/voltage signal monitored by the IED and to send the variation data to the controller and an associated cycle count of a point in the current/voltage signal. The controller receives the variation data and associated cycle count and determines a peak correlation using a data alignment algorithm on IED pair combinations. If the IEDs are on the same electrical grid, the peak correlations should occur at cycle count offsets that match the order that the IEDs received the instruction. Any discrepancies in the expected order of peak correlations are flagged, and the corresponding IEDs are determined to be on different grids.
    • 一种自动识别电力监控系统中的智能电子设备(IED)是否在多个电网中的方法。 控制器以预定的时间顺序向每个IED发送指令,使得每个IED在不同的时间接收指令,命令每个IED开始记录指示由IED监视的当前/电压信号中的频率变化的变化数据,并发送 到控制器的变化数据和当前/电压信号中的点的相关周期计数。 控制器接收变化数据和相关的循环计数,并使用IED对组合上的数据对齐算法确定峰值相关性。 如果IED位于相同的电网上,峰值相关应发生在符合IED接收到指令的顺序的周期计数偏移。 标记峰值相关性的预期顺序的任何差异,并将相应的IED确定为不同的网格。
    • 10. 发明授权
    • Method for controlling frequency converter unit, and frequency converter assembly
    • 控制变频器单元和变频器总成的方法
    • US08755210B2
    • 2014-06-17
    • US12155456
    • 2008-06-04
    • Jani Kangas
    • Jani Kangas
    • H02M5/00
    • H02J13/002H02J13/0093H02M2001/0009H04B3/56H04B2203/5483
    • A method for controlling a frequency converter unit, the frequency converter unit containing an input connection for supplying electric power at an input frequency to the frequency converter unit, and an output connection for supplying electric power at an output frequency from the frequency converter unit, the method comprising a control step, in which the frequency converter unit is controlled by means of control signals. In the control step the control signals are supplied through an inductive connection to at least one wire connected to the input connection or the output connection of the frequency converter unit for transmitting electric power, the control signals being supplied to the frequency converter unit over the at least one wire.
    • 一种用于控制变频器单元的方法,所述变频器单元包含用于向频率转换器单元提供输入频率的电力的输入连接,以及用于从频率转换器单元提供输出频率的电力的输出连接, 方法包括控制步骤,其中通过控制信号控制变频器单元。 在控制步骤中,通过电感连接将控制信号提供给连接到变频器单元的输入连接或输出连接的至少一根电线,用于发送电力,控制信号通过at提供给变频器单元 最少一根线。