Abstract: A method for obtaining a relation between a winding state and a leakage reactance parameter of a transformer by using simulation software is provided. The method includes: establishing a simulation transformer based on a size of a physical transformer; setting parameters of the simulation transformer, setting a winding of the simulation transformer in a predetermined winding state; obtaining a predetermined number of values of a leakage reactance parameter of the simulation transformer in the winding state; and performing statistics on all the values to obtain a value range of the leakage reactance parameter in a case that the winding is in the winding state. The value range is used as a value range of a leakage reactance parameter of the physical transformer in a case that a winding of the physical transformer is in the winding state.

Abstract: The present application discloses a method for optimized design of an independent micro-grid system, the independent micro-grid system comprising diesel generators, wind powered generators, a photovoltaic array, and an energy storage battery, the optimization method referring specifically to a multi-objective optimization design model based on the independent micro-grid system. In terms of the optimization planning design model, the method takes into account a combined start-up mode for a plurality of diesel generators and a control strategy for coordinating between the energy storage battery and the diesel generators, such that the usage rate of renewable energy in the independent micro-grid is higher, and operations more economical and environmentally friendly. Regarding the stability of the system optimization planning design model, the method takes into account the reserve capacity needed for stability of the independent micro-grid.

Abstract: A method for quickly carrying out effective automatic interlocking logic detection based on a GOOSE communication mechanism, comprising: introducing an automatic system device model and configuration satisfying the IEC61850 standard, and simulating a GOOSE communication behavior in which an intelligent electronic device acts as a quick packet transmitter and receiver, so as to realize the closed-loop detection function by independent publishing and feedback monitoring GOOSE information.

Abstract: An optical fiber core butting apparatus comprises a butting panel (1) with multiple butting devices including butting holes (11), optical fiber core butting connectors and mechanical hands (3); the optical fiber core butting connectors comprise a wire-line connector (21) and a cord-line connector (22); the wire-line connector (21) comprises a first slide bar (211), a first wire-line core connector (212) and a second wire-line core connector (213), and the input terminals and the output terminals of the first and second wire-line core connectors (212, 213) are both connected by connecting fibers; the cord-line connector (22) comprises a second slide bar (221), a first cord-line core connector (222) and a second cord-line core connector (223), and the first and second cord-line connector (222, 223) are connected by a connecting fiber; the mechanical hands (3) are used for holding the core connectors and driving the core connectors to move.

Abstract: A system for intelligent electric power utilization of park and a method thereof are provided. The system includes an acquisition system, a data processing system, an application system and a service system through which the acquisition system, the data processing system and the application system are connected to external system. The application system includes an intelligent interaction application subsystem, an electric power utilization monitoring application subsystem, an energy efficiency analysis application subsystem, an orderly electric power utilization application subsystem, a system security application subsystem and a man-machine interaction interface. Enterprise users are leaded to actively carry out requirement response. Energy conservation and emission reduction and peak shaving and valley filling are effectively realized in intelligent park. Capability of intelligent electric power utilization of the park is improved.

Abstract: A method for controlling structure-borne noise based on a combined-type vibration isolation device includes the following steps: S1: determining a combined-type vibration isolation device as required according to parameters of a mechanical device to be isolated, and installing the combined-type vibration isolation device on a horizontal bearing surface; S2: vertically placing the mechanical device to be isolated on the combined-type vibration isolation device; S3: adjusting a mass of an intermediate balance weight block of the combined-type vibration isolation device; and S4: adjusting an inherent frequency of the combined-type vibration isolation device to be lower than a structural vibration sound transmission frequency generated in the operation of the mechanical device to be isolated.

Abstract: A method for obtaining a relation between a winding state and a leakage reactance parameter of a transformer by using simulation software is provided. The method includes: establishing a simulation transformer based on a size of a physical transformer; setting parameters of the simulation transformer, setting a winding of the simulation transformer in a predetermined winding state; obtaining a predetermined number of values of a leakage reactance parameter of the simulation transformer in the winding state; and performing statistics on all the values to obtain a value range of the leakage reactance parameter in a case that the winding is in the winding state. The value range is used as a value range of a leakage reactance parameter of the physical transformer in a case that a winding of the physical transformer is in the winding state.

Abstract: A power frequency parameter simulation system for a power transmission line and a control method thereof, the system includes a simulation main circuit (1), an interference power supply (2) and a procedure controller (3). In the system, a power frequency parameter of a 10 to 100 kilometers of 500 kV power transmission line is simulated in a lumped parameter manner; and the control method includes the following steps of: a step to detect the automatically zeroing during starting up, a step to control the reduction of the length of a simulation line and a step to control a simulation interference voltage. A long-distance power transmission line is realized to be moved into a room and be tested by means of the power frequency parameter test system, so the various inconveniences of on-site measurement are avoided.

Abstract: A combined-type intelligent terminal wiring device and a plug device are provided. The wiring device includes a top wiring terminal board, a bottom wiring terminal board and a combined-type socket. An interior of each terminal of the combined-type socket has a spring-leaf structure, and each spring leaf includes an upper spring leaf and a lower spring leaf which are conductively connected via a contact surface. The top wiring terminal board has one end configured to connect the upper spring leaf, and the bottom wiring terminal board has one end configured to connect the lower spring leaf. The plug device includes a plug and a wiring terminal, the plug is located at a front end of the plug device and is a conductive metallic sheet, and the wiring terminal is located at a rear end of the plug device and has one end connected to the conductive metallic sheet.

Abstract: An optical fiber core butting apparatus comprises a butting panel (1) with multiple butting devices including butting holes (11), optical fiber core butting connectors and mechanical hands (3); the optical fiber core butting connectors comprise a wire-line connector (21) and a cord-line connector (22); the wire-line connector (21) comprises a first slide bar (211), a first wire-line core connector (212) and a second wire-line core connector (213), and the input terminals and the output terminals of the first and second wire-line core connectors (212, 213) are both connected by connecting fibers; the cord-line connector (22) comprises a second slide bar (221), a first cord-line core connector (222) and a second cord-line core connector (223), and the first and second cord-line connector (222, 223) are connected by a connecting fiber; the mechanical hands (3) are used for holding the core connectors and driving the core connectors to move.

Abstract: A method for quickly carrying out effective automatic interlocking logic detection based on a GOOSE communication mechanism, comprising: introducing an automatic system device model and configuration satisfying the IEC61850 standard, and simulating a GOOSE communication behavior in which an intelligent electronic device acts as a quick packet transmitter and receiver, so as to realize the closed-loop detection function by independent publishing and feedback monitoring GOOSE information.

Abstract: The disclosure relates to the crossing field between a power transmission of an ultra-high-voltage and a power system simulation, specifically a method for analyzing an operation state of a substation by combining a whole grid model with a local grid model is provided according to the disclosure. The method includes following steps: performing a load flow calculation for the provincial grid to which a ultra-high-voltage line belongs, wherein initial data of the load flow calculation employs a grid model with E format for national power grid dispatching control center; making an equivalent transform for the model, forming an island independently from the provincial grid to which a ultra-high-voltage line belongs, and making a load flow calculation for the island to acquire data of node voltages and line transmission power.

Abstract: The present application provides a power line communications system and method. The system comprises a power line network, a sending apparatus, and a receiving apparatus. The receiving apparatus comprises at least two PLC modems connected through a power line link. The sending apparatus sends a signal to a target PLC modem in the receiving apparatus through a power line network. The target PLC modem is at least one PLC modem in the receiving apparatus. The PLC modems in the receiving apparatus simultaneously receive a signal, the PLC modems except the target PLC modem respectively send the received signal to the target PLC modem through a wireless link, and the target PLC modem restores the signal sent by the sending apparatus according to the signal received through the power line network and the signal received through the wireless link.

Abstract: A combined-type intelligent terminal wiring device and a plug device are provided. The wiring device includes a top wiring terminal board, a bottom wiring terminal board and a combined-type socket. An interior of each terminal of the combined-type socket has a spring-leaf structure, and each spring leaf includes an upper spring leaf and a lower spring leaf which are conductively connected via a contact surface. The top wiring terminal board has one end configured to connect the upper spring leaf, and the bottom wiring terminal board has one end configured to connect the lower spring leaf. The plug device includes a plug and a wiring terminal, the plug is located at a front end of the plug device and is a conductive metallic sheet, and the wiring terminal is located at a rear end of the plug device and has one end connected to the conductive metallic sheet.

Abstract: A method for controlling structure-borne noise based on a combined-type vibration isolation device includes the following steps: S1: determining a combined-type vibration isolation device as required according to parameters of a mechanical device to be isolated, and installing the combined-type vibration isolation device on a horizontal bearing surface; S2: vertically placing the mechanical device to be isolated on the combined-type vibration isolation device; S3: adjusting a mass of an intermediate balance weight block of the combined-type vibration isolation device; and S4: adjusting an inherent frequency of the combined-type vibration isolation device to be lower than a structural vibration sound transmission frequency generated in the operation of the mechanical device to be isolated.

Abstract: A system for intelligent electric power utilization of park and a method thereof are provided. The system includes an acquisition system, a data processing system, an application system and a service system through which the acquisition system, the data processing system and the application system are connected to external system. The application system includes an intelligent interaction application subsystem, an electric power utilization monitoring application subsystem, an energy efficiency analysis application subsystem, an orderly electric power utilization application subsystem, a system security application subsystem and a man-machine interaction interface. Enterprise users are leaded to actively carry out requirement response. Energy conservation and emission reduction and peak shaving and valley filling are effectively realized in intelligent park. Capability of intelligent electric power utilization of the park is improved.

Abstract: A smart home network comprises a plurality of appliances, each of which comprises a unique radio frequency identification tag. The smart home network further comprises a plurality of power outlets, each of which has a unique ID. The power outlets of the smart home network are capable of detecting the RFID tag and measuring the operational parameters of the appliances. The power outlets are further coupled to a central controller. The central controller receives operational parameters of the appliances from the power outlets, constructs a real time model of the smart home and forwards analytical results to a display terminal.

Abstract: A micro-grid controller comprises a sampling unit, a processor and an input and output unit. The processor generates a micro-grid operation control command based upon the system operational parameters detected by the sampling unit. Through the input and output unit, the micro-grid controller is able to disconnect the micro-grid system from a main grid system by turning off a switch coupled between the micro-grid system and the main grid system.

Abstract: A central controller of a micro-grid system is configured to receive the operational parameters of the main grid system and the micro-grid system, update a power generation plan of the micro-grid system based upon the operational parameters of the micro-grid system, wherein the power generation plan is formulated such that power outputs of the micro-grid system approximately match loads of the micro-grid system. Furthermore, the central controller forwards the power generation plan to the plurality of local controllers coupled to the micro-grid system so that the micro-grid system is able to have a seamless transition from a grid-connected mode to a grid-disconnected mode.