A battery management system is described that includes a controller configured to control electrical charging and discharging of a plurality of blocks of a battery. The battery management system also includes an inter-block communication network including a master node and a plurality of slave nodes arranged in a ring-type daisy-chain configuration with the master node. The master node is coupled to the controller and configured to initiate all command messages sent through the inter-block communication network and terminate all reply messages sent through the inter-block communication network. The plurality of slave nodes is bounded by an initial node coupled to the master node and a last node coupled to the master node.

Apparatuses including utility meter, power electronics, and communications circuitry are provided. The utility meter circuitry is configured to measure usage of electricity supplied by an electric utility to a premise of a customer of the electric utility. The power electronics circuitry is configured to regulate a voltage level supplied to the premise of the customer. Moreover, the communications circuitry is configured to provide communications with a first electronic device of the customer at the premise of the customer and to provide communications with a second electronic device that is upstream from the apparatus. Related methods of operating an apparatus including utility meter, power electronics, and communications circuitry are also provided.

Provided is a power adjustment device capable of adjusting the supply and demand of electric power with appropriate timing using a power storage device. The power adjustment device (10) has a difference estimation unit (12), a charging/discharging power amount calculation unit (14), and an instruction unit (16). The difference estimation unit (12) estimates a first difference between a power generation amount and a power consumption amount during a predetermined first period in intervals of time shorter than the first period. The charging/discharging power amount calculation unit (14) calculates a charging/discharging power amount, which is an amount of electric power to be charged to or discharged from a power storage device (20), on the basis of the estimated first difference and the remaining time to the end of the first period. The instruction unit (16) instructs the power storage device (20) to charge or discharge a power amount that corresponds to the calculated charging/discharging power amount.

A method and a system sense at least one phase difference between at least two phases of a group of parallel connected three phase AC output terminals (e.g., a first phase AC output terminal, a second phase AC output terminal, or a third phase AC output terminal). The parallel connected AC output terminals may be three parallel connected DC to AC three phase inverters. Features of the parallel connected three phase AC output terminals enable wiring of conductors to one phase of an AC output terminal to be swapped with wiring of conductors of one phase of another phase AC output terminal. A sign of at least one phase difference is verified different from signs of other phase differences thereby the system determining the lateral position of the at least one three phase inverters relative to at least one other of the three phase inverters.

A computer-implemented method for controlling voltage fluctuations of a microgrid including a plurality of distributed generators (DGs) is presented. The computer-implemented method includes collecting, by a resiliency controller including at least a voltage control module, measurement data from the microgrid, using, by a reactive power estimator, reactive power estimations to calculate an amount of reactive power for each of the DGs, and using a dynamic droop control unit to distribute the reactive power to each of the DGs of the microgrid.

A power adjusting circuit includes a sensor configured to measure a voltage and a current of the first AC output by an inverter, an AC/DC/AC converter configured to receive the first AC output from the inverter, and a controller configured to convert the first AC output to a second AC output having a desired power factor.

A system includes a network device installed at a site, the network device including an operating condition configured to be altered by an input initiated external to the site. The system also includes at least one multi-user configurable geographical boundary capable of being established about the site to alter the operating condition in response to a location based information of a user relative to the site and the geographical boundary. A method of managing a site includes detecting a network device installed at a site, the network device having an operating condition configured to be altered by an input initiated external to the site. The method also includes enabling configuration of at least one multi-user configurable geographical boundary capable of being established about the site to alter the operating condition in response to a location based information of a user relative to the site and the geographical boundary.

Aspects of the subject disclosure may include, for example, a transmission system having a coupling device, a bypass circuit, a memory and a processor. The coupling device can facilitate transmission or reception of electromagnetic waves that propagate along a surface of a transmission medium. The memory can store instructions, which when executed by the processor, causes the processor to perform operations including restarting a timer to prevent the bypass circuit from disabling the transmission or reception of electromagnetic waves by the coupling device. Other embodiments are disclosed.

A power grid network is provided featuring a mesh network having a mesh node with a signal processor. The signal processor receives signaling containing information about collected data, which includes electrical signaling data related to electrical signaling being processed by a transformer to which the mesh node is coupled, metered data related to associated electrical signaling being provided from the transformer to a building or structure, and other mesh network data from one or more other mesh nodes deployed in the mesh network. The signal processor also determines corresponding signaling containing information about the collected data for transmitting back to a central location or one or more corresponding mesh nodes in the mesh network for further processing, based upon the signaling received.

Methods, systems, and computer program products for prioritizing errors in connectivity models of distribution networks are provided herein. A computer-implemented method includes collecting geo-spatial data arising from each of multiple transformers and multiple customer meters within an electric power distribution network; collecting load data arising from each of the customer meters within the electric power distribution network; assigning one of the transformers to each of the customer meters that is not presently assigned to one of the transformers according to a connectivity model for the distribution network, wherein said assigning is based on the collected multiple items of geo-spatial data and the collected load data; computing an error probability attributable to each of the transformers and the customer meters assigned thereto within the electric power distribution network based on multiple variables; and modifying an existing field inspection schedule corresponding to the electric power distribution network based on said computing.