An on-board control apparatus includes: a controller connected to a controlled device mounted in a vehicle via a signal line and configured to control the operation of the corresponding controlled device; and a power source box connected to a power source mounted in the vehicle via a power line, that is connected to the controlled device mounted in the vehicle via a power line, and configured to switch between supply and non-supply of power from the power source to the controlled device, wherein the power source box includes; a switch disposed in a power supply path from the power source to the controlled device; a reception unit configured to receive an input of the switching command; and a switching control unit configured to switch between conduction and interruption of the switch in response to the switching command received by the reception unit.

Devices, systems, and methods for modifying an existing electrical circuit to enable a conventional mechanical switch to integrate with and operate smart devices, while also providing continuous power supply and cooperating with external operation of the smart devices (e.g., via a mobile device application, smart controller, etc.). The smart device thus is operable both via the physical switch and via a home automation system, without loss of power to the smart device computer and transmitter components caused by use of the wall switch. This may be done via a replacement switch or faceplate which effectively bypasses the physical switch to ensure continuous power to the smart device while also inferring and transmitting the toggle state of the switch by measuring an amount of current through the faceplate.

A power supply unit for an IED for LV or MV electric power applications characterized in that it comprises: a power transformer stage, which is operatively coupled to a feeding conductor to harvest electric power from said feeding conductor; a first storage stage, which is electrically connected to said power transformer stage to store electric energy; a first step-down conversion stage, which is electrically connectable/disconnectable to/from said first storage stage; a switching stage adapted to electrically connect/disconnect said first step-down conversion stage with/from said first storage stage; and a second storage stage, which is electrically connected to said first step-down conversion stage to store electric energy.

Systems and methods for distributing power in a power-to-the-edge system architecture are provided. In one embodiment, a system comprises an intelligent power switch configured to couple to a power supply, wherein the intelligent power switch outputs a first differential voltage output; and a plurality of intelligent remote nodes each comprising a management microcontroller (MCU) and a DC-to-DC converter. The intelligent remote nodes each receive the differential voltage output, and are communicatively coupled to a data network. The intelligent power switch comprises a processor executing an intelligent start-up control and switching function and an electrical fault detection function. The intelligent power switch outputs the differential voltage at a first voltage level while the electrical fault detection function monitors the differential voltage output. Based on results of monitoring at the first voltage level, the intelligent power switch switches the output to a second voltage level higher than the first voltage level.

A micro grid system comprises an adapter, a power controller, and secondary energy source. The adapter is in communication with an electric grid and configured to connect and disconnect a connection between the electric grid and a micro grid. The power controller is in communication with the adapter and configured to receive first AC power from the electric grid via the adapter, obtain grid information, and control the adapter to connect and disconnect the connection between the electric grid and the micro grid. The power controller controls the adapter to disconnect the connection in response to determining that the electric grid is abnormal based on the grid information. The secondary energy source is in communication with the power controller and is configured to generate DC power and to supply the DC power to the power controller.

The present system relates to a power topology mapping system for identifying which one of one or more equipment components are being powered from a specific phase of a multi-phase AC power source. The system makes use of a plurality of power receiving subsystems which each receive an AC power signal from at least one phase of the multi-phase AC power source. Each power receiving subsystem has a communications card, an identification designation unique to it, and a controller. One of the power receiving subsystems is designated as a reference power domain component. The controllers each carry out phase angle measurements associated with the AC power signal being received by its power receiving subsystem. A topology mapping subsystem is included which analyzes phase angle measurement data reported by the power receiving subsystems and determines which subsystem is being powered by which phase of the multi-phase AC signal.

An electrical panel or an electrical meter may provide improved functionality by interacting with a smart plug. A smart plug may provide a smart-plug power monitoring signal that includes information about power consumption of devices connected to the smart plug. The smart-plug power monitoring signal may be used in conjunction with power monitoring signals from the electrical mains of the building for providing information about the operation of devices in the building. For example, the power monitoring signals may be used to (i) determine the main of the house that provides power to the smart plug, (ii) identify devices receiving power from the smart plug, (iii) improve the accuracy of identifying device state changes, and (iv) train mathematical models for identifying devices and device state changes.

An electric driven hydraulic fracking system is disclosed. A pump configuration includes the single VFD, the single shaft electric motor, and the single hydraulic pump mounted on the single pump trailer. A controller associated with the single VFD and is mounted on the single pump trailer. The controller monitors operation parameters associated with an operation of the electric driven hydraulic fracking system as each component of the electric driven hydraulic fracking system operates to determine whether the operation parameters deviate beyond a corresponding operation parameter threshold. Each of the operation parameters provides an indicator as to an operation status of a corresponding component of the electric driven hydraulic fracking system. The controller initiates corrected actions when each operation parameter deviates beyond the corresponding operation threshold. Initiating the corrected actions when each operation parameter deviates beyond the corresponding operation threshold maintains the operation of the electric driven hydraulic fracking system.

A power system of a consumer premises includes a circuit breaker to provide power to an electrical circuit and a current sensor mounted proximate a connection of the circuit breaker. The current sensor generates data that a controller uses to compute current draw for the circuit fed by the circuit breaker. Based on the current draw information, the controller can determine how much real and reactive power is being drawn by individual circuits. The controller can use that information to trigger a power converter to adjust operation to change the quadrant of operation of the current vector.

An energy management method includes determining whether or not charging power reduction control has been carried out in a battery that is being charged and performing processing for compensating for decrease in charging power due to charging power reduction control when it is determined that charging power reduction control has been carried out in the battery that is being charged.