CN203191748U

CN203191748U - Time setting system for measurement and control of transformer station

Info

Publication number: CN203191748U
Application number: CN 201320154101
Authority: CN
Inventors: 潘爱强; 曾平; 张浙波; 罗裬; 朱奕帆
Original assignee: State Grid Corp of China SGCC; Shanghai Municipal Electric Power Co; East China Power Test and Research Institute Co Ltd
Current assignee: State Grid Corp of China SGCC; Shanghai Municipal Electric Power Co; East China Power Test and Research Institute Co Ltd
Priority date: 2013-03-30
Filing date: 2013-03-30
Publication date: 2013-09-11
Anticipated expiration: 2023-03-30

Abstract

The utility model relates to measurement and control of a transformer station. The time setting system for measurement and control of the transformer station comprises a measurement and control device, high-precision time setting and synchronously-sampling pulse modules, a time setting signal acquisition circuit and a control output circuit. The time setting system further comprises a DAC plate and a CPU plate, wherein the a first high-precision time setting and synchronously-sampling pulse module and a first MPC 8313 module are welded on the DAC plate, a second high-precision time setting and synchronously-sampling pulse module, a second MPC 8313 module and the measurement and control device are welded on the CPU plate, and the first high-precision time setting and synchronously-sampling pulse module and the second high-precision time setting and synchronously-sampling pulse module are in communication connection.

Description

Transformer station's observing and controlling use to the time system

Technical field

The utility model relates to the power technology field, relates in particular to transformer station's observing and controlling.

Background technology

At present the secondary device of transformer station all to carry out to the time, so that the information data of transformer station all is with markers, perhaps equipment room can be synthetic by carrying out data message synchronously, produces more useful data, the clock system that one general configuration one cover is unified, with each secondary device is carried out to the time.Intelligent substation makes the cable of traditional transformer station become optical cable by networking, and does not become the concentric cable that cable major part that optical cable stays will become time synchronized after the intelligent transformer station.Transformer station want synchronously to the time equipment comprise station level, wall, process layer equipment.Different equipment to synchronously to the time accuracy requirement different, station level utilizes the time scale information of lower floor, and is not high to accuracy requirement; To process layer equipment, because it is the raw information of the bottom, the highest to accuracy requirement; Bay device carries out synchronous correction as adopting the time bias algorithm to the bottom time scale information between between the two, and then accuracy requirement is also higher relatively, as differential protection, synchronized phasor system etc.

The utility model content

The purpose of this utility model is, provide the observing and controlling of a kind of transformer station use to the time system, to solve the problems of the technologies described above.

The technical matters that the utility model solves can realize by the following technical solutions:

Transformer station's observing and controlling use to the time system, comprise a measure and control device, one high precision to the time Synchronous Sampling Pulse module, to the time signal acquisition circuit, the control output circuit, it is characterized in that, also comprise a DAC plate, one CPU board, be welded with on the described DAC plate first high precision to the time Synchronous Sampling Pulse module and a MPC8313 module, be welded with on the described CPU board second high precision to the time Synchronous Sampling Pulse module, the 2nd MPC8313 module and measure and control device, described first high precision to the time Synchronous Sampling Pulse module and second high precision to the time communicate to connect between the Synchronous Sampling Pulse module.

Described high precision to the time Synchronous Sampling Pulse module can be one adopt the FPGA programming device to the time and the Synchronous Sampling Pulse module, this module accept GPS IRIG-B sign indicating number difference or 1PPM, the pulse of 1PPS optical fiber to the time signal, markers when output 5k, 10k high-speed synchronous sampling pulse and GPS are.

Described measure and control device adopts dsp processor, described dsp processor by parallel bus connect high precision to the time Synchronous Sampling Pulse module.The chip of described dsp processor adopts the TMS320F28335 chip.

Can realize at the MPC8313 of host CPU and DAC plate when IEC61588 is, have two independent to the time network interface.Two-way to the time when according to IEC61588 principle handle respectively to the time message, and the mistiming of calculating MPC8313 and master clock, by the best master clock algorithm from two-way to the time select one the tunnel as main to the time source, and output date Hour Minute Second and 1pps give FPGA, if through algorithm judge two-way to the time all invalid, then Hour Minute Second is output as 0 the date.Whether FPGA is 0 validity when judging that current I E61588 is according to the date Hour Minute Second.

When configuration DAC plate, device have a plurality of to the time source, all to the time at first send to the FPGA of CPU board, by this FPGA with each to the time source state send to the MPC8313 of CPU board, MPC8313 according to each to the time source priority select a best to the time source, and give the FPGA of CPU board with selection result, this FPGA use best to the time source to the time information synchronization system all cpu chips.The FPGA programming device is the Spartan-3A Series FPGA programming device with DSP function.

Description of drawings

Fig. 1 is circuit block diagram of the present utility model.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.

Transformer station's observing and controlling use to the time system, comprise a measure and control device, a high precision to the time Synchronous Sampling Pulse module, to the time signal acquisition circuit, control output circuit, also comprise a DAC plate, a CPU board, first high precision to the time Synchronous Sampling Pulse module and a MPC8313 module be welded on the DAC plate, second high precision to the time Synchronous Sampling Pulse module, the 2nd MPC8313 module and measure and control device be welded on the CPU board, first high precision to the time Synchronous Sampling Pulse module and second high precision to the time communicate to connect between the Synchronous Sampling Pulse module.

High precision to the time Synchronous Sampling Pulse module can be one to adopt the FPGA programming device, accept GPSIRIG-B sign indicating number difference or 1PPM, the pulse of 1PPS optical fiber to the time signal, output 5k, 10k high-speed synchronous sampling pulse and GPS to target constantly to the time and the Synchronous Sampling Pulse module.

Measure and control device adopts dsp processor, dsp processor by parallel bus connect high precision to the time Synchronous Sampling Pulse module

With reference to Fig. 1, can realize at the MPC8313 of host CPU and DAC plate when IEC61588 is, have two independent to the time network interface.Two-way to the time when according to IEC61588 principle handle respectively to the time message, and the mistiming of calculating MPC8313 and master clock, by the best master clock algorithm from two-way to the time select one the tunnel as main to the time source, and output date Hour Minute Second and 1pps give FPGA, if through algorithm judge two-way to the time all invalid, then Hour Minute Second is output as 0 the date.Whether FPGA is 0 validity when judging that current I E61588 is according to the date Hour Minute Second.

When configuration DAC plate, device have a plurality of to the time source, all to the time at first send to the FPGA of CPU board, by this FPGA with each to the time source state send to the MPC8313 of CPU board, MPC8313 according to each to the time source priority select a best to the time source, and give the FPGA of CPU board with selection result, this FPGA use best to the time source to the time information synchronization system all cpu chips.

More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

Transformer station's observing and controlling use to the time system, comprise a measure and control device, one high precision to the time Synchronous Sampling Pulse module, to the time signal acquisition circuit, the control output circuit, it is characterized in that, also comprise a DAC plate, one CPU board, be welded with on the described DAC plate first high precision to the time Synchronous Sampling Pulse module and a MPC8313 module, be welded with on the described CPU board second high precision to the time Synchronous Sampling Pulse module, the 2nd MPC8313 module and measure and control device, described first high precision to the time Synchronous Sampling Pulse module and second high precision to the time communicate to connect between the Synchronous Sampling Pulse module.
Transformer station according to claim 1 observing and controlling use to the time system, it is characterized in that, described high precision to the time Synchronous Sampling Pulse module be one adopt the FPGA programming device to the time and the Synchronous Sampling Pulse module.
Transformer station according to claim 2 observing and controlling use to the time system, it is characterized in that the FPGA programming device is the Spartan-3A Series FPGA programming device with DSP function.
Transformer station according to claim 1 observing and controlling use to the time system, it is characterized in that described measure and control device adopts dsp processor, described dsp processor by parallel bus connect high precision to the time Synchronous Sampling Pulse module.
Transformer station according to claim 4 observing and controlling use to the time system, it is characterized in that the chip of described dsp processor adopts the TMS320F28335 chip.