Exemplary protection circuitry for wireless power systems can include a battery disconnect circuit, a load dump protection circuit, and/or a coil disconnect circuit. One or more of these protection circuits may be employed by a wireless power receiver. Further, one or more of these protection circuits may enable a wireless power receiver to be able to protect itself independently from a wireless power transmitter, thereby increasing safety of the wireless power system.

Circuits, methods, and apparatus that may provide power supply voltages in a safe and reliable manner that meets safety and regulatory concerns and does not exceed physical limitations of cables and other circuits and components used to provide the power supply voltages. One example may provide a cable having a sufficient number of conductors to provide power without exceeding a maximum current density for the conductors. Another example may provide a cable having more than the sufficient number of conductors in order to provide an amount of redundancy. Current sense circuits may be included for one or more conductors. When an excess current is sensed, a power source in the power supply may be shut down, the power source may be disconnected from one or more conductors, or both events may occur.

Circuits, methods, and apparatus that may provide power supply voltages in a safe and reliable manner that meets safety and regulatory concerns and does not exceed physical limitations of cables and other circuits and components used to provide the power supply voltages. One example may provide a cable having a sufficient number of conductors to provide power without exceeding a maximum current density for the conductors. Another example may provide a cable having more than the sufficient number of conductors in order to provide an amount of redundancy. Current sense circuits may be included for one or more conductors. When an excess current is sensed, a power source in the power supply may be shut down, the power source may be disconnected from one or more conductors, or both events may occur.

The present specification provides a method and device for determining a disturbance condition in a power transmission line. The method includes obtaining (302) a plurality of sample values corresponding to an electrical parameter measured in each phase. The method further includes determining (304) a plurality of magnitudes of the electrical parameter corresponding to each phase based on the corresponding plurality of sample values and determining (306) a plurality of difference values for each phase based on the corresponding plurality of magnitudes. The method includes processing (308) the plurality of difference values using a machine learning technique to determine the disturbance condition. The disturbance condition is one of a load change condition, a power swing condition and an electrical fault condition. The method also includes performing (310) at least one of a protection function and a control function based on the disturbance condition.

A power distribution system includes a first intelligent circuit breaker; a plurality of second intelligent circuit breakers, the second intelligent circuit breaker is structured to transmit the circuit breaker information to the first intelligent circuit breaker; and an energy monitoring device coupled to the first and second intelligent circuit breakers and structured to receive the circuit breaker information, the energy monitoring device including a dynamic coordination system structured to: (i) determine whether an adjustment to configuration setting of an intelligent circuit breaker is required based at least in part on the circuit breaker information, (ii) identify the intelligent circuit breaker with the configuration setting required to be adjusted based on a determination that the adjustment is required, and (iii) transmit an alert to user, indicating that the adjustment to the configuration setting of the identified intelligent circuit breaker is required and device address of the identified intelligent circuit breaker.

A power distribution system includes a first intelligent circuit breaker; a plurality of second intelligent circuit breakers, the second intelligent circuit breaker is structured to transmit the circuit breaker information to the first intelligent circuit breaker; and an energy monitoring device coupled to the first and second intelligent circuit breakers and structured to receive the circuit breaker information, the energy monitoring device including a dynamic coordination system structured to: (i) determine whether an adjustment to configuration setting of an intelligent circuit breaker is required based at least in part on the circuit breaker information, (ii) identify the intelligent circuit breaker with the configuration setting required to be adjusted based on a determination that the adjustment is required, and (iii) transmit an alert to user, indicating that the adjustment to the configuration setting of the identified intelligent circuit breaker is required and device address of the identified intelligent circuit breaker.

A microgrid overcurrent protection device and a method for overcurrent protection of a microgrid. The protection device including a voltage controlled overcurrent detector for detecting an overcurrent above an overcurrent threshold and a phase directional detector arranged for current direction in a downstream or an upstream direction. The overcurrent threshold of the voltage controlled overcurrent detector is set at an upper overcurrent threshold when a measured voltage Vm is above a threshold voltage Vs and set at a lower overcurrent threshold when the measured voltage Vm is below the threshold voltage Vs. The device further includes a timer arranged for generating a trigger signal with a first delay time period when a downstream current direction and an overcurrent are detected and with a second delay time period when an upstream current direction and an overcurrent are detected.

A microgrid overcurrent protection device and a method for overcurrent protection of a microgrid. The protection device including a voltage controlled overcurrent detector for detecting an overcurrent above an overcurrent threshold and a phase directional detector arranged for current direction in a downstream or an upstream direction. The overcurrent threshold of the voltage controlled overcurrent detector is set at an upper overcurrent threshold when a measured voltage Vm is above a threshold voltage Vs and set at a lower overcurrent threshold when the measured voltage Vm is below the threshold voltage Vs. The device further includes a timer arranged for generating a trigger signal with a first delay time period when a downstream current direction and an overcurrent are detected and with a second delay time period when an upstream current direction and an overcurrent are detected.

A power distribution panel for distributing power to a plurality of components. A modular frame may removably attach in an aperture of a side of a chassis. A first module may be removably attached in an opening of the modular frame. A second module, different from the first module, may be removably attached in the opening of the modular frame.

A power distribution panel for distributing power to a plurality of components. A modular frame may removably attach in an aperture of a side of a chassis. A first module may be removably attached in an opening of the modular frame. A second module, different from the first module, may be removably attached in the opening of the modular frame.