Abstract: A method for operating a controller in a fault managed power (FMP) system, includes connecting the FMP front-end circuit of the controller electrically in parallel with the FMP transmission line, receiving power by the FMP front-end circuit and the output control and conditioning circuit of the controller from the FMP transmission line when the FMP transmitter transmits power over the transmission line during power transfer periods, in the low power and the high-power modes. It includes electrically isolating the output control and conditioning circuit from the FMP front-end circuit and the FMP transmission line during power sample periods and it causes the controller to perform one or more of receiving input data from a human operator, receiving sensor data from a sensor, presenting output data for the human operator to observe, or transmitting data to and receiving data from the FMP transmitter.

Abstract: A fault managed power (FMP) transmitter for use in an electrical power system, having a power source port configured to be connected to a first electrical power source of the plurality of electrical power sources and an power bus port configured to be electrically connected to the common electrical bus. There is at least one switch between the power source port and the power bus port and processing circuitry configured to control the at least one switch to receive power from the first electrical power source and to transmit FMP output pulses via the power bus port over the common electrical bus to the FMP receiver. The processing circuitry is configured to receive an external timing trigger to enable the processing circuitry to synchronize the transmission of the FMP output pulses with the transmission of FMP output pulses from each of the at least one other FMP transmitter.

Abstract: A packet energy transfer (PET) receiver comprising receiver front-end circuitry including an input, an output, and at least one switch connected at the output. There is receiver output control and conditioning circuity including an input and an output to be connected to an electrical load. There is a synchronizer circuit to close the switch to allow power to flow into the receiver output control and conditioning circuitry during each of the first plurality of transfer periods of the transmitter and to open the switch to prevent power to flow into the receiver output circuitry during a first plurality of sample periods. There is a load controller that disables the synchronizer circuit and operates the switch to close it and allow power to flow into the receiver output control and conditioning circuitry during subsequent transfer periods and to open the switch to prevent power to flow during a subsequent sample periods.

Abstract: A method for operating a controller in a fault managed power (FMP) system, includes connecting the FMP front-end circuit of the controller electrically in parallel with the FMP transmission line, receiving power by the FMP front-end circuit and the output control and conditioning circuit of the controller from the FMP transmission line when the FMP transmitter transmits power over the transmission line during power transfer periods, in the low power and the high-power modes. It includes electrically isolating the output control and conditioning circuit from the FMP front-end circuit and the FMP transmission line during power sample periods and it causes the controller to perform one or more of receiving input data from a human operator, receiving sensor data from a sensor, presenting output data for the human operator to observe, or transmitting data to and receiving data from the FMP transmitter.

Abstract: An unknown resistance and an unknown capacitance are calculated. Both are connected across output terminals of a transmitter. During a first sample period, values indicative of a first rate of voltage decay in a transmission line without a known bias applied are obtained. Additionally, during the first sample period or during a second sample period, values indicative of a second rate of voltage decay with a known bias applied are obtained. The unknown resistance and the unknown capacitance are calculated using the first rate of voltage decay, the second rate of voltage decay, and the known bias, wherein the known bias is a single known bias.

Abstract: A set of packet-energy-transfer operating parameters is automatically configured to optimize safety, efficiency and/or resiliency in a digital-electricity power system. A set of limits is configured for packet-energy-transfer operation that does not immediately preclude safe operation of the transmission lines, wherein each limit in the set defines constraints for at least one of measurements and calculations based on impedance in series or in parallel with the transmission lines, operational efficiency of the digital-electricity power system, and/or voltage or current signal integrity. The operation of the transmission lines is measured, and the measurements are compared with the limits. Upon at least one of the limits being exceeded, a revised set of limits is automatically configured (or a new configuration is generated) based on which limit was exceeded.

Abstract: The integrity of transmission-line voltage measurements in a digital-electricity power system in the presence of line-voltage disturbances during a sample period is ensured via detection or prevention by (a) acquiring at least three measurements of transmission-line voltage, performing numerical analysis on the measurements to produce a polynomial function, and estimating accuracy of the polynomial function based on magnitude of variance of the individual measurements; (b) applying a negative or positive bias to the transmission line during the sample period and acquiring voltage measurements to determine a rate of voltage change with the bias applied; (c) shifting a start time of a first sample period on a first transmission line in reference to a second sample period on a second transmission line to reduce overlap of sample periods across both transmission lines; and/or (d) synchronizing start times of respective sample periods on first and second transmission lines.

Abstract: A set of packet-energy-transfer operating parameters is automatically configured to optimize safety, efficiency and/or resiliency in a digital-electricity power system. A set of limits is configured for packet-energy-transfer operation that does not immediately preclude safe operation of the transmission lines, wherein each limit in the set defines constraints for at least one of measurements and calculations based on impedance in series or in parallel with the transmission lines, operational efficiency of the digital-electricity power system, and/or voltage or current signal integrity. The operation of the transmission lines is measured, and the measurements are compared with the limits. Upon at least one of the limits being exceeded, a revised set of limits is automatically configured (or a new configuration is generated) based on which limit was exceeded.

Abstract: The integrity of transmission-line voltage measurements in a digital-electricity power system in the presence of line-voltage disturbances during a sample period is ensured via detection or prevention by (a) acquiring at least three measurements of transmission-line voltage, performing numerical analysis on the measurements to produce a polynomial function, and estimating accuracy of the polynomial function based on magnitude of variance of the individual measurements; (b) applying a negative or positive bias to the transmission line during the sample period and acquiring voltage measurements to determine a rate of voltage change with the bias applied; (c) shifting a start time of a first sample period on a first transmission line in reference to a second sample period on a second transmission line to reduce overlap of sample periods across both transmission lines; and/or (d) synchronizing start times of respective sample periods on first and second transmission lines.