Abstract: Systems, methods, and apparatus for smart electric power grid communication are disclosed in the present invention. At least one grid element transmits at least one registration message over an Internet Protocol (IP)-based network to at least one coordinator. The at least one coordinator registers the at least one grid element upon receipt of the at least one registration message. The at least one grid element automatically and/or autonomously transforms into at least one active grid element for actively functioning in the electric power grid. The at least one coordinator tracks based on revenue grade metrology an amount of power available for the electric power grid or a curtailment power available from the at least one active grid element.

Abstract: System for controlling power consumption on a portion of a distribution grid providing electrical power to a plurality of power-consuming units and including a substation providing one or more transformers operable to increase or decrease the voltage supplied to consumers within the portion of the grid. A data set includes a previously measured power consumption associated with previously measured values of (a) property(ies) being one of voltage, current, frequency or load, or a combination thereof. A measurement device for measuring the property(ies) of the grid. A processing device to determine from the previously measured values of the property(ies) a most likely effect of altering the value(s) of the property(ies) from a first value to a second value. A storage device for storing one or more rules associating a measured condition with a corrective action. The system being operable to determine whether a measurement meets a measured condition of a stored rule.

Abstract: A dedicated wireless access point is not required, and an air-conditioning apparatus can be paired with a wireless access point simply by operating at hand an operating device that is separate from the air-conditioning apparatus. A remote control (15) is provided with a pairing request instruction button for instructing an air conditioner (12) to cause a first communicator serving as a wireless device of the air conditioner (12) to transmit pairing request data, and upon receiving, from the remote control (15), a signal indicating that the pairing request instruction button has been operated, the air conditioner (12) transmits pairing request data through the first communicator, completes a pairing upon receiving authentication data from a wireless AP (13), and connects to the wireless AP (13).

Abstract: Systems, methods, and messages of the present invention provides IP-based messages associated with the grid elements, wherein each IP-based message includes an internet protocol (IP) packet that is generated autonomously and/or automatically by the grid elements, intelligent messaging hardware associated with the grid elements, at least one coordinator, and/or a server associated with the electric power grid and its operation, energy settlement, and/or financial settlement for electricity provided or consumed, transmitted, and/or curtailed or reduced. The IP packet preferably includes a content including raw data and/or transformed data, a priority associated with the IP-based message, a security associated with the IP packet, and/or a transport route for communicating the IP-based message via the network.

Abstract: An energy supply device contains: (a) a supply mechanism for supplying electrical power for a power supply system or for an electrical consumer connected to the power supply system; (b) a control unit for controlling an operation of the supply mechanism in first and second operating modes; (c) an interface configured to receive external control signals and to forward the external control signals that indicate how the supply mechanism works in the first operating mode; and (d) a communication monitoring unit that is coupled to the interface and the control unit and monitors whether external control signals are received by the interface, and, if the interface has not received any external control signals or any valid external control signals over a pre-determined amount of time, to transmit an operating mode control signal to the control unit, which causes it to operate the supply mechanism in the second operating mode.

Abstract: A town storage battery power conversion device outputs an AC voltage to a distribution system during a power failure. Electric power generated by a solar cell installed in each consumer house is converted into an AC voltage by a solar cell power conversion device and output to a consumer premises distribution system to which a load is connected. In an autonomous operation during a power failure, an operation plan for a distributed power supply is updated in a cycle longer than a cycle of an operation plan for a town storage battery. In the autonomous operation, the town storage battery power conversion device changes an AC voltage frequency according to a difference between electric power output from the town storage battery and the operation plan. The solar cell power conversion device has a function of modifying a control target value for the solar cell according to the AC voltage frequency.

Abstract: A subsynchronous oscillation suppression method and an apparatus and a controller of a converter are provided in the present disclosure, the controller is for controlling the converter. The method includes: acquiring an electric energy fluctuation parameter generated by a subsynchronous oscillation of a power transmission system; acquiring a compensation parameter of a current setting for an active axis according to the electric energy fluctuation parameter; controlling the converter to suppress the subsynchronous oscillation according to the compensation parameter of the current setting for the active axis.

Abstract: A diagnostic device for monitoring the operation of a technical plant with an automation system, wherein the diagnostic device includes a data memory in which at least one data set characterizing the operation of the plant with values of process variables can be stored, and an evaluation device, where the diagnostic device is characterized in that the evaluation device is configured to determine a diagnostic statement about the operation of the technical plant based on the data set and at least one self-organizing map and based on a program for controlling a sequence during the operation of the technical plant with repeatedly traversed step sequences via a Dynamic Time Warping method.

Abstract: Embodiments of present disclosure relates to a modular interconnection device (MID) and an electrical network system. The MID comprises a modular port assembly, a node, a converter and a local controller. The modular port assembly is configured to transmit alternating current and/or direct current. The node is coupled to an AC source via a first switch and the modular port assembly. The first switch is configured to selectively disconnect the modular interconnection device from the AC source. The converter is coupled to the node via a second switch and coupled to a DC source via a third switch. The converter is configured to convert the AC current into DC current or convert DC current into AC current. The local controller is coupled to the first, second and third switches and configured to control operation of the first, second and third switches.

Abstract: Methods and systems of identifying a time reduction in a manufacturing time associated with a plurality of products. One system includes an electronic processor configured to receive training data. The electronic processor is also configured to determine a first set of testing parameters from the plurality of testing parameters to remove for the assembly line based on the training data and determine a second set of testing parameters to keep by removing the first set of testing parameters from the plurality of testing parameters. The electronic processor is also configured to determine a predictive model to replace the first set of testing parameters based on the training data associated with the second set of testing parameters, and automatically update a testing process for the assembly line to turn off the first set of testing parameters and use the predictive model in place of the first set of testing parameters.

Abstract: The present disclosure relates to a heating, ventilation, and air conditioning (HVAC) system that includes an energy recovery conduit that is configured to extend between and fluidly couple an outlet of a central housing of an outdoor HVAC unit and a condenser section of the outdoor HVAC unit.

Abstract: A system state estimation device according to the present invention includes: a classification unit that classifies first meter data into a plurality of groups, the first meter data being meter data metered in a first time zone by at least some of a plurality of smart meters; a statistic calculation unit that calculates variation of the first meter data for each of the groups; used data determination unit that determines, for each of the groups, whether to use meter data in a second time zone or a substitute value in estimation computation for estimating a system state in the second time zone on the basis of the variation; and an aggregation unit and a power flow calculation unit that perform the estimation computation on the basis of a result of determination performed by the used data determination unit.

Abstract: Disclosed techniques include desalination using pressure vessels. Access to a set of at least three pressure vessels is obtained. The pressure vessels are interconnected using piping and computer-controlled switching valves. A first pressure vessel of the set is filled with a prepurified liquid. A second pressure vessel of the set is filled with a pressurized gas. The pressurized gas is sharp interface immiscible with the prepurified liquid. The switching valves are controlled to enable the pressurized gas in the second pressure vessel to force the prepurified liquid from the first pressure vessel into a reverse osmosis chamber. The switching valves are controlled to enable a third pressure vessel of the set to fill with additional prepurified liquid. The switching valves are controlled to enable the pressurized gas that entered the first pressure vessel to force the additional prepurified liquid from the third pressure vessel into the reverse osmosis chamber.

Abstract: A device may receive a power demand for a load and a weather forecast for a time period. The device may determine a first supply of power available from a photo-voltaic (PV) installation for the time period based on the weather forecast. The device may determine a power deficit for the time period based on the power demand and the first supply of power. The device may determine a first cost associated with utilizing a second supply of power available from a battery and a second cost associated with utilizing a third supply of power available from an engine for the time period. The device may determine a power source to overcome the power deficit based on the first cost and the second cost and may cause the PV installation and the power source to supply power to satisfy the power demand for the load.

Abstract: A system for discovering the topology and phase of an electrical power distribution system is provided. For example, a group of meters connected to an electrical power distribution system can process sensor data obtained at the meters and generate descriptors based on the processed data and transmit the descriptors to a headend system. The headend system can, after receiving the descriptors from the various meters in the system, group these meters to generate a grouping by applying clustering algorithms to the descriptors of these meters. The headend system can further compare the current grouping with past groupings to determine a confidence level of the current grouping and assign a segment identifier or a phase identifier or both to one or more of the meters based on the confidence level.

Abstract: A method for state estimation of a distribution network comprises: (a) obtaining measurements from phasor measurement units (PMUs) placed at buses in the distribution network; (b) constructing a quotient gradient system (QGS) based on a constraint set H that relates the measurements to state variables of the distribution network; (c) integrating the QGS to reach a steady state; (d) identifying one or more of the state variables whose measurement residuals violate a measurement residual constraint in the constraint set H; (e) integrating a reconstructed QGS, which is reconstructed based on the constraint set H by setting the identified one or more state variables to values of corresponding PMU measurements; (f) iterating steps of (d) and (e) until no measurement residuals violate the measurement residual constraint, to thereby obtain the state estimation; and (g) reporting the state estimation to a control system during real-time monitoring of the distribution network.

Abstract: Devices, methods, and systems for monitoring a building management system are described herein. One method includes monitoring an attribute of a building, monitoring an activity related to the attribute performed by an operator, and publishing the activity performed by the operator and the attribute of the building.

Abstract: Provided is a method for exchanging electric power with an electricity supply grid that has a grid frequency using a converter-controlled generation unit that may be a wind power installation or a wind farm, at a grid connection point. The method includes exchanging electric power depending on a control function. The electric power includes active and reactive power and the control function controls the power depending on at least one state variable of the electricity supply grid. It is possible to switch between a normal control function and a support control function, different from the normal control function, as the control function. The normal control function is used when it has been recognized that the electricity supply grid is operating stably and the support control function is used when a grid fault or an end of the grid fault has been recognized.

Abstract: A computer-implemented method for providing an estimated utility expenditure to a user may include: obtaining, via one or more processors, historical transactional data of one or more customers other than the user from one or more transactional entities, wherein the historical transactional data includes: at least one address of a given customer of the one or more customers; and a historical utility expenditure associated with the at least one address; generating, via the one or more processors, a heatmap based on the historical transactional data of the one or more customers via one or more algorithms, wherein the heatmap is indicative of at least the estimated utility expenditure associated with the at least one address during a predetermined period; and causing a display of a user device associated with the user to demonstrate the heatmap.

Abstract: Disclosed are a dynamic lightning protection method and system. The method includes detecting lightning in real time and tracking a position of a thunderstorm; and performing dynamic lightning protection and control on an electrical grid according to an electrical grid control strategy before the thunderstorm reaches or affects the electrical grid. Further disclosed is a dynamic lightning protection system.