Abstract: A method for controlling cooling system of a power equipment and a system using the same. The method includes steps of: obtaining a first data set representing operational cost related parameters specific to the power equipment and its cooling system at a series of time intervals of a first load cycle in a history profile; obtaining a second data set representing operational cost related parameters specific to the power equipment and its cooling system at a series of time intervals of a second load cycle in the history profile, establishing a third data set, establishing a fourth data set; establishing a fifth data set; establishing a sixth data set; and controlling the cooling system to operate at a series of time intervals of the present load cycle at the stablished cooling capacity parameters concerning the present load cycle represented by the sixth data set.

Abstract: A method for defect pre-warning of a power device may comprise processing measurement data regarding components of the power device based on predetermined severity criteria, to obtain severities of monitoring indexes related to defects of the components. Weights of the monitoring indexes with respect to the defects are determined based on effectiveness of the monitoring indexes for the defects. A defect probability that at least one of the components has each of at least one of the defects is estimated based on the severities and the weights. Some embodiments may achieve more reliable defect probability estimation and in some embodiments defective component probability and/or device healthy may be estimated. Based on the reliable information, it may facilitate to arrange the maintenance before defects involve into a fault and assess a risk of power device operation and control, thereby improving reliability of the power device.

Abstract: The invention relates to a method and apparatus for monitoring the condition of subsystems within a renewable generation plant or microgrid which are using Supervisory Control and Data Acquisition (SCADA) systems for allowing plant operators to monitor and interact with a plant via human machine interfaces.

Abstract: A cooling system for a high voltage electromagnetic induction device, includes: at least one duct filled with a first coolant and surrounded by a second coolant, each being routed along a direction of natural convection; at least one group of fans, each fan of the group being mounted along a respective duct of the at least one duct along the direction of natural convection and being configured to blow for the-second-coolant-forced cooling; at least one group of electric motors, each electric motor being configured to operate a respective fan of the at least one group of fans; at least one group of switches, each switch being configured to control a respective electric motor of the at least one group of electric motors. A method of cooling a high voltage electromagnetic induction device is also provided. By using the option of operating fans with higher cooling rate, because of the less fans are operating, the predetermined cooling capacity can be reached with lower power consumption.

Abstract: It provides a method for monitoring a circuit breaker and an apparatus and an internet of things using the same. The method includes: obtaining a first data set representing force applied to a fixed point of an element of an actuating mechanism of the circuit breaker in present operation cycle, judging a health condition of the circuit breaker in consideration of normal operating condition related parameters of the element according to a history profile when the circuit breaker operated normally and current operating condition related parameters of the element in the present operation cycle extracted from the force represented by the first data set, and generating a signal indicating the health condition of the actuating mechanism of the circuit breaker the circuit breaker.

Abstract: The present application includes wind turbine condition monitoring method and system.

Abstract: A control system for an electric vehicle charging station (EVCS) is provided, the control system comprises: a central controller configured to receive an ancillary service order from a power grid and distribute the ancillary service order to one or more local controllers periodically; and the one or more local controllers configured to control a plurality of electric vehicle supply devices based on the distributed ancillary service order in real time. The method controlling the electric vehicle charging station (EVCS) is also provided.

Abstract: A method for controlling cooling system of a power equipment and a system using the same.

Abstract: One embodiment of the present application provides a method for obtaining a first data set representing operational cost related parameters specific to the power equipment and its cooling system forecasted for a series of time intervals of present load cycle in consideration of a second data set representing operational condition related parameters for the power equipment forecasted for a series of time intervals of present load cycle; in consideration of the parameters represented by the first data set, through knowledge-based predetermined numerical and/or logical linkages, establishing a third data set representing cooling capacity parameters for the cooling system at the series of time intervals of the present load cycle according to criteria for operational cost optimization of the power equipment and its cooling system for the present load cycle; and in the present load cycle, controlling the cooling system to operate at the cooling capacity parameters at the series of time intervals represented by the

Abstract: A method for monitoring turbines of a windmill farm includes: providing a global nominal dataset containing frame data of the turbines of the windmill farm and continuous reference monitoring data of the turbines for a first period in a fault free state, the reference monitoring data including at least two same monitoring variables for each turbine; building a nominal global model based on the global nominal dataset which describes the relationship in between the windmill turbines and clustering the turbines according thereto; assigning the data of the global nominal dataset to respective nominal local datasets according to the clustering; and building a nominal local model for the turbines of each cluster based on the respective assigned nominal local datasets, the nominal local model being built such that a nonconformity index is provideable which indicates a degree of nonconformity between data projected on the local model and the model itself.

Abstract: The present application includes wind turbine condition monitoring method and system.

Abstract: The present application discloses a method to optimize operation of a transformer cooling system, the corresponding cooling system, and a method to determine the capacity of Variable Frequency Drives (VFD) that are used in the transformer cooling system. The method comprises: preprocessing the initial data input by user; collecting the on-line data, and calculating the optimized control command to meet the requirement of the transformer loss, top-oll temperature variation and noise; and executing the control actions by controlling a controllable switch and/or sending a control command to a VFD. Compared with the existing prior arts, the proposed solutions are much more intuitive and practical in the field of the cooling system.

Abstract: A control system for an electric vehicle charging station (EVCS) is provided, the control system comprises: a central controller configured to receive an ancillary service order from a power grid and distribute the ancillary service order to one or more local controllers periodically; and the one or more local controllers configured to control a plurality of electric vehicle supply devices based on the distributed ancillary service order in real time. The method controlling the electric vehicle charging station (EVCS) is also provided.

Abstract: A method for defect pre-warning of a power device may comprise processing measurement data regarding components of the power device based on predetermined severity criteria, to obtain severities of one-of monitoring indexes related to defects of the components. Weights of the monitoring indexes with respect to the defects are determined based on effectiveness of the monitoring indexes for the defects. A defect probability that at least one of the components has each of at least one of the defects is estimated based on the severities and weights. Some embodiments may achieve more reliable defect probability estimation and in some embodiments defective component probability and/or device healthy may be estimated. Based on the reliable information, it may facilitate to arrange the maintenance before defects involve into a fault and assess a risk of power device operation and control, thereby improving reliability of the power device.

Abstract: The present invention discloses a coordinated control method for power distribution system with DC bus electrification scheme and apparatus thereof. The method comprises: detecting what kind of disturbances occurs, and at least one of following steps: restoring the voltages of the failed DC buses if power loss is detected on the DC buses due to temporary or permanent failures of upstream power supplies; controlling the voltage of the abnormal DC buses if overvoltage or under-voltage is detected on the DC buses due to internal or external disturbances; and supporting the voltages of the abnormal AC buses if overvoltage or under-voltage is detected on the AC buses due to internal or external disturbances. The methods and apparatus can further improve the fault-ride-through capability for power plant under external or internal disturbances, and facilitate smooth automatic switching process between two DC buses etc.

Abstract: The present invention relates to a method for a short message receiving terminal to send individuation receipt information. It executes the following steps: A subscriber applies to open the individuation receipt service after a short message is received and customizes individuation receipt information. After a short message sending terminal sends a short message to the subscriber's mobile terminal via a short message center, the short message sending terminal inquires service information. After receiving a receipt status signaling returned back from the short message receiving terminal, the short message sending terminal sends out a request to the service platform for sending individuation receipt information. The service platform sends the receipt information to the short message sending terminal.

Abstract: The present invention relates to a method for adding background sound to mobile communication talking. In the method of the present invention, a subscriber may dial additionally a background sound service number at the time of calling the a called party to make a mobile communication exchange, on the basis of the additionally-dialed number, add a talking link of a third party provided by the background sound system to establish a three-party talking at the time of establishing a talking link between a calling mobile communication terminal and a called mobile communication terminal. Thus, the calling and called parties can have a background sound service during the talking.

Abstract: The present invention relates to a method for adding background sound to mobile communication talking. In the method of the present invention, a subscriber may dial additionally a background sound service number at the time of calling the a called party to make a mobile communication exchange, on the basis of the additionally-dialed number, add a talking link of a third party provided by the background sound system to establish a three-party talking at the time of establishing a talking link between a calling mobile communication terminal and a called mobile communication terminal. Thus, the calling and called parties can have a background sound service during the talking.

Abstract: The present invention relates to a method for a short message receiving terminal to send individuation receipt information. It executes the following steps: A subscriber applies to open the individuation receipt service after a short message is received and customizes individuation receipt information. After a short message sending terminal sends a short message to the subscriber's mobile terminal via a short message center, the short message sending terminal inquires service information. After receiving a receipt status signaling returned back from the short message receiving terminal, the short message sending terminal sends out a request to the service platform for sending individuation receipt information. The service platform sends the receipt information to the short message sending terminal.

Abstract: The present invention relates to a Colorful Ring Back Tone (CRBT) copying method, the method comprises: a calling mobile terminal initiating a call to a called mobile terminal and receiving a Ring Back Tone (RBT) sent by the CRBT service center; the mobile communication network authenticating it after receiving a CRBT copying request; if the authentication is passed, copying the RBT being currently played to a ring database of the calling mobile terminal and keeping playing the RBT until off-hook or on-hook; otherwise, keeping playing until off-hook or on-hook.