The invention relates to dynamic simulation devices and methods for all voltage grades of a power system, in particular to a simulation device and method of the characters of a merging unit of an intelligent transformer substation The simulation device accords with a DL/T860 communication protocol and has the functions that secondary signals of multiple traditional voltage mutual inductors and current mutual inductors are received; the secondary signals are converted into digital light signals which accord with the DL/T86092 and the GB/T 208408; all characters of the merging unit can be simulated at the same time, wherein the characters comprise the synchronizing and desynchronizing character, frame loss, delay, delay deviation and delay jitter of sampling valve messages, and sampling frequency deviation and jitter; the synchronous mark, the state character and the quality place of the sampling valve messages can be modified in real time, and the sampling valve deviation and superimposed harmonic components can be simulated The simulation device and method solve the problem that simulation can not be achieved easily for abnormal conditions of the electronic mutual inductors and the merging unit in the dynamic simulation process of the intelligent transformer substation, and can be widely applied to reliability research and testing of secondary equipment of the intelligent transformer substation

Simulation device and method of characters of merging unit of intelligent transformer substation

The invention provides an automatic test method and system. The automatic test method comprises an AD simulation method which runs in a tested device. The AD simulation method comprises a command receiving step in which a command sent from a computer control unit is received; an input signal simulation step in which needed analog input signals are calculated to obtain consistent simulation signals according to the received command; and a sampling and output step in which the simulation signals are sampled according to the data sampling and processing logics the same with that of a real AD module to obtain discrete data values, the discrete data values are stored in a sampling and storage module and provided for a data processing module, and a simulation input process which can replace the real AD module is realized. The automatic test method and system have the advantages that resource of the tested device is effectively used via computer control, so that an AD simulation module operated in the tested device outputs simulation data, the simulation data serves as input condition of test, the problem that testers are needed in traditional methods is solved, and the cost of test resources is reduced.

Automatic test method and system

Hybrid simulation and regulating-and-controlling-integrated simulation united simulation data interaction system and method

The invention discloses a power grid panorama simulation system. A power grid panorama is simulated through a power grid primary simulation device and a power grid secondary simulation device; time setting of the system is realized through a time setting device which is separately connected with the power grid primary simulation device and the power grid secondary simulation device, so that time consistency of all devices is guaranteed; a data processing device which is separately connected with the power grid primary simulation device, the power grid secondary simulation device and the time setting device starts power grid panorama simulation after realizing system time setting; simulation data are processed to obtain a power grid panorama simulation effect. The overall operation condition of a power grid can be effectively analyzed, so that systematic overall prediction of the power grid is achieved, and the effect of preventing sudden faults of the power grid system is achieved. Theinvention also provides a power grid panorama simulation method which has the above beneficial effects.

Power grid panorama simulation system and power grid panorama simulation method

Provided are substation lightning arrester data synchronous acquisition and transmission equipment and a control method thereof, which relate to the technical field of substation lightning arrester running state data acquisition and transmission and especially relate to the intelligent substation lightning arrester running state data synchronous acquisition and transmission technology. The substation lightning arrester data synchronous acquisition and transmission equipment comprises a sensor module, a signal processing module and a ZigBee wireless transmission module. The sensor module is formed by a Hall current sensor wounded by a coil; the sensor module transmits the collected voltage and current signals of a lightning arrester to the signal processing module; and after being amplified by a power amplifier in the signal processing module, the voltage and current signals are transmitted to an upper computer in a monitoring center through the ZigBee wireless transmission module. The signal processing module comprises a multichannel AD and conditioning circuit module, a clock synchronization module, a high-speed CPLD module, a DSP module, an IEC61850-9-2 protocol processing module, other types of protocol processing modules and an FPGA module.

Substation lightning arrester data synchronous acquisition and transmission equipment and control method thereof

The utility model discloses a simulated merging unit simulation device, comprising a data processing module, a pulse per second time setting module, an Ethernet transmit-receive module, a man-machine management module, a display module and a storage module. The data processing module is connected with the pulse per second time setting module, the Ethernet transmit-receive module, the man-machine management module, the display module and the storage module. The simulated merging unit simulation device provides data sources which meet IEC61859-9-2 standards for real secondary devices in an intelligent substation hybrid simulating training system. The device is easy to install and debug, and does not need a step of equipping an electronic transformer. The device is low in investment, low in failure rate, and is simple in operation.

Simulated merging unit simulation device

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Simulated merging unit simulation device