An example system includes an aggregator configured to receive a service collaboration request and iteratively determine, based on minimum and maximum power values for DERs under its management, an optimized operation schedule. The aggregator may also be configured to iteratively determine, based on the optimized operation schedule, an estimated flexibility range for devices under its management and output an indication thereof. The system may also include a power management unit (PMU) configured to iteratively receive the indication and determine, based on a network model that includes the estimated flexibility range, a reconfiguration plan and an overall optimized operation schedule for the network. The PMU may also be configured to iteratively cause reconfiguration of the network based on the plan. The PMU and aggregator may also be configured to iteratively, at a fast timescale, cause energy resources under their management to modify operation based on the overall optimized operation schedule.

The present disclosure is directed to energy storage and supply management system. The system may include one or more of a control unit, which is in communication with the power grid, and an energy storage unit that stores power for use at a later time. The system may be used with traditional utility provided power as well as locally generated solar, wind, and any other types of power generation technology. In some embodiments, the energy storage unit and the control unit are housed in the same chassis. In other embodiments, the energy storage unit and the control unit are separate. In another embodiment, the energy storage unit is integrated into the chassis of an appliance itself.

Embodiments described herein provided methods and apparatus for controlling switching a power supply of a first network node between an electrical power grid and an alternative power supply, in which the first network node is configured to transmit data to a second network node over a data transmission link. The method includes receiving first information indicative of a predicted decrease in a transmission rate of data transmitted by the first network node over the data transmission link. Responsive to receiving the first information, a first request is transmitted to the first network node to switch the power supply of the first network node from the electrical power grid to the alternative power supply.

A cell and/or internet device that can be connected to existing city devices that are powered by city power to install a wireless cell and/or internet service to the city. The system has a plurality of the cell and/or internet devices connected to associated city devices powered by city power, and the cell and/or internet devices are controlled by a server. A method of using the system to provide cell and/or internet services to a city.

A hierarchical power control system associated with a cloud server includes a first microgrid cell, a second microgrid cell, a third microgrid cell, a middleware server, and an integrated control system. The first microgrid cell includes a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load having a power state managed by the first energy storage system (ESS). The second microgrid cell includes a second load and a second energy storage system (ESS) for managing a power state of the second load. The third microgrid cell includes a third load. The middleware server communicates with the first to third microgrid cells. The integrated control system receives power supply-demand state information of the first to third microgrid cells through the middleware server, and establishes an integrated operation schedule based on the received power supply-demand state information of the first to third microgrid cells.

The present device and method provide continuous power supply to consumers at a minimal cost. The present device combines electrical power from a plurality of direct and alternating current sources while working together with or separately from an external electrical power grid. Inside of the device, generation sources are connected via DC/DC and AC/DC converters to a DC bus, to which batteries are also connected via a charge control system. DC current is converted into AC current through reversible AC/DC converters according to the number of grid phases and an AC bus is connected to said converters, allowing for energy from an external grid to also be used for charging the batteries. The method of control is based on a cyclical program for selecting energy sources, said program being executed by a control unit and having dynamic parameter correction that takes into account present and projected energy production and consumption.

A power distribution and control system for use with a bulk generation system having transmission and distribution systems, the power distribution and control system including a plurality of microgrids each including a power generation element and a load, a plurality of microgrid controllers each associated with one and only one of the plurality of microgrids, and a first communication network. A high-level controller is operable using the first communication network to communicate with the bulk generation system and each of the plurality of microgrid controllers, the high-level controller operable to coordinate the operation of the microgrids during normal system operation. A second communication network is separate from the first communication network, the second communication network providing peer to peer communication between each of the plurality of microgrid controllers when at least one of the high-level controller and the first communication network is not available, and a plurality of third communication networks provide communication between one of the plurality of microgrid controllers and at least one of the power generation element and the load associated with that microgrid controller.

In an a power management system for managing a plurality of essential loads and a plurality of nonessential loads that can be fed electric power from an alternate power source and from a grid power source, a power distribution network transmits power from the alternate power source and the grid power source to the essential loads and to the nonessential loads. A grid power sensor senses a grid power failure. A wireless transmitter is coupled to the grid power sensor and transmits a decouple signal when the grid power sensor detects a grid power failure. A plurality couplers selectively couple the nonessential loads to the power distribution network. Each of the plurality of couplers includes a wireless receiver and a switch that responsive to the wireless receiver. The couplers also decouple at least one of the nonessential loads from the power distribution network when the decouple signal is received.

The present disclosure relates to a multifunctional energy storage system in which one energy storage system is capable of performing a plurality of functions and an operating method thereof. According to an aspect of the present disclosure, there is provided a multifunctional energy storage system including: a battery; a power converter to transfer power between a system and the battery; a multi-function controller to select the activation functions, to generate an integrated objective function, a weight, and a constraint condition corresponding to the activation functions, and to generate a control value for controlling each function included in the activation functions on the basis of the integrated objective function, the weight, and the constraint condition; and an individual function controller to receive the control value for each of the activation functions from the multi-function controller and to control the power converter so that each function is performed on the basis of the received control value.

An electrical power generating system for providing auxiliary or backup power to a load bus. The system may be used indoors, and generally includes a fuel cell unit comprising a first DC output, an electrical storage unit comprising a DC input coupled to the first DC output of the fuel cell, the electrical storage unit further comprising a second DC output. An inverter coupled to the second DC output receives power, the inverter comprising a first AC output. The system includes a contactor connected between the first AC output and an AC load bus. The AC load bus comprises an AC voltage, and a controller comprising inputs is adapted to sense a phase, a frequency, and a magnitude of the first AC output and the AC voltage and close the contactor when they substantially match.