Device and method for detecting time parameters of intelligent substation merging units
A technology of intelligent substation and time parameters, applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve problems such as judgment errors, and achieve the effect of ensuring consistency and improving accuracy and precision
Active Publication Date: 2014-09-03
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD +1
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[0005] In order to solve the problem that the current equipment for detecting the time parameters of the merging units easily leads to wrong judgments on the state of each merging unit and whether it is working synchronously, the present invention proposes a device and method for detecting the time parameters of the merging units in an intelligent substation. To achieve the purpose of improving the accuracy of judging the status of each merging unit and whether it is working synchronously
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[0036] figure 1It is a schematic structural diagram of a device for detecting time parameters of a smart substation merging unit according to the present invention. The device includes a core processing unit 11 , a network transceiver unit 12 and a time reference unit 13 . The time reference unit 13 is connected with the core processing unit 11, and is used for providing the time signal for the device of the present invention, so that the time of each component of the device of the present invention adopts the time signal generated by the time reference unit 13. The network transceiver unit 12 is connected to the core processing unit 11, and timestamps the messages to be processed on the network according to the time signal provided by the time reference unit 13. The communication of the smart substation system is based on the transmission control protocol / Internet protocol (TCP / IP, Transmission Control Protocol / Internet Protocol) network, the internal data of the smart substa...
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The invention belongs to the technical field of electrical power system intelligent substations and provides a device and method for detecting time parameters of intelligent substation merging units. The problems that according to existing equipment for detecting the time parameters of the merging units, whether the various merging units work synchronously can be judged mistakenly, and the states of the various merging units can be judged mistakenly are solved. The device comprises a core processing unit, a network transmit-receive unit and a time reference unit. The time reference unit is connected with the core processing unit. The network transmit-receive unit is connected with the core processing unit. The core processing unit comprises a time performance analyzing unit, a comparing computing unit and an obtaining unit. The time parameters of the merging units are subjected to statistic analysis, and then according to the statistic analysis results, the states of the various merging units and whether the merging units work synchronously are judged.
Description
technical field [0001] The invention belongs to the technical field of electric power system intelligent substations, and in particular relates to a device and method for detecting time parameters of an intelligent substation merging unit. Background technique [0002] In 2009, the State Grid Corporation of China put forward the development goal of building a strong smart grid. As an important foundation and node support of a strong smart grid, smart substations are very important construction content. Substation communication network and system protocol IEC61850 provides standards for the construction of intelligent substations. The smart substation includes electronic transformers, merging units (Merging Unit, MU) and intelligent electronic devices (Intelligent Electronic Devices, IEDs). The electronic transformers are used to sample voltage and current values. The information such as the sampling value and sampling time is encapsulated into an SMV (Sampled Value) message...
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IPC IPC(8): G01R31/00
Inventor 王宇徐长宝高吉普肖小兵赵旭阳刘晶黄尧
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD