G05D17/00

System, method, and apparatus for settlement for participation in an electric power grid
10373275 · 2019-08-06 · ·

Systems, methods, and apparatus embodiments for electric power grid and network registration and management of physical and financial settlement for participation of active grid elements in supply and/or curtailment of power, wherein Internet Protocol (IP)-based messages including IP packets are generated by transforming raw data content into settlement grade content. Settlement is provided for grid elements that participate in the electric power grid following initial registration of each grid element with the system, preferably through network-based communication between the grid elements and a coordinator, either in coordination with or outside of an IP-based communications network router. Messaging related to settlement is managed through a network by a Coordinator using IP messaging for communication with the grid elements, with the energy management system (EMS), and with the utilities, market participants, and/or grid operators.

System, method, and apparatus for settlement for participation in an electric power grid
10373275 · 2019-08-06 · ·

Systems, methods, and apparatus embodiments for electric power grid and network registration and management of physical and financial settlement for participation of active grid elements in supply and/or curtailment of power, wherein Internet Protocol (IP)-based messages including IP packets are generated by transforming raw data content into settlement grade content. Settlement is provided for grid elements that participate in the electric power grid following initial registration of each grid element with the system, preferably through network-based communication between the grid elements and a coordinator, either in coordination with or outside of an IP-based communications network router. Messaging related to settlement is managed through a network by a Coordinator using IP messaging for communication with the grid elements, with the energy management system (EMS), and with the utilities, market participants, and/or grid operators.

Secured control of circuit breakers in a digital substation

Methods and systems for secured control of circuit breakers in an electric power substation against undesired direct operation. Consequences of a malicious action are prevented or mitigated using a validation approach that either blocks the command or ensures a negligible effect on system operation. An example method, suitable for implementation in a monitoring device in an electric power substation, includes receiving a command to open or close a circuit breaker. In response, one or more state parameters for the electric power network that comprises the substation are then predicted, the predicted state parameters reflecting an operating state for the network under the assumption that the received command is executed. The method further comprises comparing the predicted one or more state parameters to corresponding operational limits. Execution of the command is then blocked, in response to determining that one or more of the predicted state parameters violate the corresponding operational limits.

Power management system, power management method, and computer program

A power management system includes a receiver, an estimator, an administrator and a determiner. The receiver acquires DR information that includes a reduction value and a target period for requesting a reduction of received power. The estimator estimates, as first power information, power that is consumed by an electric load during the target period. The administrator manages, as second power information, power that can be output from a power supplying apparatus including a power storage apparatus. The determiner determines that a condition for participating in a power trade market is met, when determining that the reduction value is achievable during the target period, based on the first power information and the second power information.

Dynamic Power Curve Throttling

The present disclosure generally relates to dynamic power curve throttling. In an exemplary embodiment, a computer-implemented method for enabling dynamic throttling of an engine includes graphically displaying a graph of a linear throttle line for the engine including an idle speed in revolutions per minute (RPM) and one or more operating speeds in revolutions per minute; using a graphical user interface to alter the linear throttling line into a non-linear dynamic throttling line; and generating a table based on the non-linear dynamic throttling line, the table including dynamic throttle increments that vary based on RPM and that are usable by a controller for dynamic throttling of the engine.

Dynamic Power Curve Throttling

The present disclosure generally relates to dynamic power curve throttling. In an exemplary embodiment, a computer-implemented method for enabling dynamic throttling of an engine includes graphically displaying a graph of a linear throttle line for the engine including an idle speed in revolutions per minute (RPM) and one or more operating speeds in revolutions per minute; using a graphical user interface to alter the linear throttling line into a non-linear dynamic throttling line; and generating a table based on the non-linear dynamic throttling line, the table including dynamic throttle increments that vary based on RPM and that are usable by a controller for dynamic throttling of the engine.

Current limit calculation for wind turbine control
10288040 · 2019-05-14 · ·

Systems and methods for determining current limits used in controlling wind turbine systems are provided. An example wind turbine controller identifies a largest current magnitude out of a first current magnitude, a second current magnitude, and a third current magnitude of a three phase power bus. The turbine controller averages the first current magnitude, the second current magnitude, and the third current magnitude to obtain an average current magnitude. The turbine controller determines a maximum current adjustment factor based at least in part on the largest current magnitude and based at least in part on the average current magnitude. The turbine controller adjusts a maximum current magnitude limit of the wind turbine by the maximum current adjustment factor to obtain an adjusted maximum current magnitude limit. The turbine controller controls the wind turbine based at least in part on the adjusted maximum current magnitude limit.

Voltage and reactive power control system
10283961 · 2019-05-07 · ·

An object of the invention is to economically operate a voltage reactive power control device by reducing a transmission loss and reducing the number of tapping operations affecting the life span of a facility. Provided is a voltage reactive power control device including a central monitoring device that includes a loss prediction information output unit calculating a bus voltage on the basis of a generation probability of a power generation pattern, and outputting loss prediction information associated with the bus voltage from system configuration information, and includes a control amount determination unit determining a control pattern of the voltage reactive power control device from the loss prediction information. According to the invention, it is possible to economically operate a voltage reactive power control device by reducing a transmission loss and reducing the number of tapping operations affecting the life span of a facility.

Electronic fuse system and a method therefore

The disclosure relates to an electronic fuse system, and to a method for an electronic fuse system. The method comprises determining (201) if the number of engaged electronic circuit breaker modules (108) has changed compared to the stored configuration. Upon determining that the number of engaged electronic circuit breaker modules (108) has changed, determining (202) if the configuration of the electronic fuse system has changed by means of comparing a stored configuration in the power distribution controller (105) and a stored configuration in the electronic circuit breaker module (108). Upon determining that the configuration of the electronic fuse system has changed, determining (203) if a stored configuration is available from the bus (101). Upon determining (203) that a stored configuration is available from the bus, fetch (204) the stored configuration from the bus and start operation of the electronic fuse system according to the fetched configuration. Upon determining (203) that a stored configuration is not available from the bus, determining (205) if a stored configuration is available from the connectable external main processor. Upon determining (205) that a stored configuration is available from the connectable external main processor, fetch (206) the configuration from the connectable external main processor and start operation of the electronic fuse system according to the fetched configuration. Upon determining (205) that a stored configuration is not available from the connectable external main processor, start operation of the electronic fuse system according to a default configuration (207).

Method of current sensor related torque error estimation for IPMSM e-drive system

A method for estimating torque control error at an electric machine considers the effects of current sensor error characteristics. Systems and methods can be practiced to determine the maximum sensor error that can be tolerated without causing unacceptable torque error. An example method uses sensor characteristics and machine characteristics to determine current sensing error, current control error, and torque control error. Determining the lowest sensor accuracy required for a desired torque control accuracy can facilitate the use of lower cost sensors in current-feedback controlled electric drive systems without compromising performance. Other applications can include vehicle diagnostics and torque error compensation.