Intelligent substation sampled value network data switching method and device

A technology for smart substations and data exchange, applied in data exchange networks, circuit devices, power network operating system integration, etc., can solve the problems of power consumption and heat dissipation that plague the development of protection devices, affect the construction layout of substations, etc., to avoid delays Uncertainty, cost reduction effect
CN103633741AActive Publication Date: 2014-03-12长园深瑞继保自动化有限公司
2 Cites 9 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
长园深瑞继保自动化有限公司
Publication Date
2014-03-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an intelligent substation sampled value network data switching method and device and aims to solve the technical problems of reducing protector cost and avoiding delay uncertainty in network data packets. The method includes the steps: a bay level merging unit acquires alternating current information of a primary transformer; a data switching device forwards the formation in sequence by means of synchronous time division multiplexing. According to the device, a voltage merging unit and the bay level merging unit are connected with a protector through the data switching device; the data switching device is a field programmable gate array. Compared to the prior art, the intelligent substation sampled value network data switching method and device has the advantages that data frames of input channels are arranged in a certain sequence when forwarded, the passages have totally same time slice timeslots, fewer fiber-optic interfaces are used, field fiber arrangement is simplified, the protector cost is reduced, the problem of delay uncertainty in network data packets is avoided, and the method and device is applicable to situations with low network throughput and fixed data frame size.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method and a device for data exchange of an intelligent substation, in particular to a method and a device for data transmission of a sampling value SV network. Background technique

[0002] In industrial control, industrial Ethernet switches are being widely used. The current industrial Ethernet switches, like ordinary Ethernet switches, use Statistical Time Division Multiplexing (STDM). free time slot. That is, a time slot is allocated to a user only when there is data to be sent; when the user suspends sending data, no time slot is allocated to it. The free time slots of the circuit can be used for data transmission of other users. Statistical time division multiplexing is also called asynchronous time division multiplexing. Therefore, this kind of time division multiplexing is easy to cause delay uncertainty in data packet forwarding when dealing with sudden large-scale data transmission. And this delay uncertainty i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More