According to one embodiment, a magnetic resonance imaging system includes a first power supply, one or more second power supplies and control circuitry. The first power supply supplies power to a magnetic resonance imaging apparatus at a time of power outage of a commercial power supply electrically connected to the magnetic resonance imaging apparatus. The second power supplies supply the power to the magnetic resonance imaging apparatus. The control circuitry determines a state of feeding from the first power supply and the second power supplies to the magnetic resonance imaging apparatus, and performs control of power consumption in the magnetic resonance imaging apparatus based on a determination result of the state of feeding.

Disclosed is a surgical instrument, comprising: an end effector configured to grasp tissue. The end effector comprises a jaw, and a staple cartridge seatable in the jaws, wherein the staple cartridge comprises a sensor array. The surgical instrument further comprises a power source configured to supply power to the staple cartridge, and a transmission system configured to wirelessly transmit at least one of the power and a data signal between the staple cartridge and the surgical instrument, and a control circuit. The control circuit is configured to detect a bandwidth of data transmission through the transmission system, detect a discharge rate of the power source, and select a sensor sampling rate of the sensor array based on a detected value of the bandwidth and a detected value of the bandwidth and a detected value of the discharge rate.

An electrical power distribution system has a converter module having a converter to convert AC voltage from AC voltage sources to DC voltage and provide DC voltage power with adjustable maximum power values at electrical output interfaces of the converter module to a maximum module power value. It includes a power profile management device to negotiate individual power profiles with electrical consumers connectable to the electrical output interfaces, according to which individual power profiles electrical power up to a negotiated maximum power value is provided by the converter via the electrical output interface. The device detects instantaneous actual power consumption with which an individually negotiated power profile and calculates a power reserve value of the converter as the difference between negotiated maximum power value and instantaneous actual power consumption and negotiate with consumers whose power reserve value is higher than an adjustable reserve threshold value a new power profile.

A technique enables microgrid switchover using zero cross detection. A flexible load management system includes a virtual critical load panel (vCLP) that utilizes circuit breakers in combination with companion modules configured to sense power provided to one or more loads to identify zero-crossings. When a preconfigured number of consecutive, missed zero-crossings is detected, the companion module is alerted as to potential main power loss and transitions to a virtual critical load (vCL) mode for load adjustment prior to operation under local power. Upon detection of main power loss, the companion module is configured for load activation (or deactivation) via states of one or more vCL bits that configure each load for either ON or OFF state when operating under local power.

A night light may include a night light housing, a light source associated with the housing, a speaker associated with the housing, a controller configured to control operations of the night light, a stand adapted to receive the housing a charge a battery associated with the housing to power the operations of the night light, and a sensor associated with the housing configured to detect when the housing is positioned on the stand or when the housing is not positioned on the stand. The controller may be configured to reduce sound volume output from the speaker, or disable a wireless communication port associated with the housing when the housing is not detected to be positioned on the stand.

The present disclosure relates to a control method, a load and a power grid system. The method includes: detecting (S102) a voltage change parameter on a power supply side; analyzing (S104) a load control strategy corresponding to the voltage change parameter; controlling (S106) an operation of the load according to the load control strategy. The solution solves the problem of inadequate communication facilities in the DC micro-grid, the DC home communication can be completed without or with less dedicated communication circuits, accordingly the system cost is reduced.

A system that performs power control such that a target value set for a group including a plurality of consumers is not exceeded includes a first prediction unit that acquires a predicted value of power usage for each of the plurality of consumers, and a limit value setting unit that sets a limit value correlated with available power set for each consumer for a specific time period. The limit value setting unit sets the limit value such that when a predicted value of each of the plurality of consumers for the specific time period is relatively small, a value obtained by dividing the limit value by the predicted value is larger than when the predicted value is relatively large.

The present disclosure provides an electrical system that includes an energy control system, a photovoltaic (PV) power generation system electrically coupled to the energy control system, an energy storage system electrically coupled to the energy control system, and a smart load panel electrically coupled to the energy control system and to a plurality of backup loads. The energy control system operates in an on-grid mode electrically connecting the PV power generation system to a utility grid and a backup mode electrically disconnecting the PV power generation system from the utility grid. The smart load panel selectively disconnects one or more of the plurality of backup loads from the energy control system when the energy control system is in the on-grid mode and when the energy control system is in the backup mode.

A method for controlling a process that draws power from an electrical power source operates by obtaining time-related electrical demand data from the electrical power source and adaptively adjusting at least one control parameter in a control algorithm for the process to reduce the cost of the electrical energy consumed. The time-related electrical demand data indicates at least diurnal variation, and optionally seasonal variation, in electrical power demand. The time-related electrical power demand data may also include real-time electrical power demand data from the electrical power source.

A system and method for providing original equipment manufacturer (OEM) control to maximize profits that include determining at least one demand based charging schedule. The system and method also include processing an OEM charging policy option to schedule charging of the at least one electric vehicle at a low carbon footprint timeframe. The system and method additionally include modifying the at least one demand based charging schedule into a policy based charging schedule based on an acceptance of the OEM charging policy option by the at least one third party environmental entity. The system and method further include facilitating payment of a carbon credit payment from the at least one third party environmental entity to the OEM.