CN208112336U - A smart substation bay layer equipment cluster measurement and control device - Google Patents

Abstract

The utility model relates to a kind of intelligent substation bay device cluster measure and control devices, including：Two sets of boards configure exactly the same, mutual backup the sub- equipment of observing and controlling, and the board configuration of every sub- equipment of set observing and controlling includes：Power panel, the process layer interface board for having SV/GOOSE receiving interface and GOOSE transmission interface are opened into plate, Main Processing Unit, and the power panel of every sub- equipment of set observing and controlling, process layer interface board are opened and be electrically connected respectively with Main Processing Unit into plate.After the utility model replaces existing measure and control device with cluster measure and control device, the quantity of wall measure and control device, the installation and debugging for reducing monitoring system and operation expense is greatly reduced, solves the outstanding problem without independent spare measure and control device in existing monitoring system.

Description

A smart substation bay layer equipment cluster measurement and control device

technical field

The utility model belongs to the technical field of electric power system automation, and in particular relates to a cluster measurement and control device for interval layer equipment of an intelligent substation.

Background technique

At present, the construction of smart substations generally adopts the "three-layer equipment, two-layer network" model, that is, process layer equipment, bay layer equipment, station control layer equipment, process layer network, and station control layer network. Although the smart substations that have been built have made great progress in equipment, construction and operation and maintenance management, due to the scattered functions of the monitoring system, the information network in the station is relatively complicated, which not only increases equipment investment, but also reduces the reliability of the substation. There are still problems in the concept of smart substation construction, technological innovation, and professional management, which need to be further resolved.

At present, the smart substation monitoring adopts the configuration mode facing the bay layer; the station control layer has many types of equipment, scattered function settings, complex information interaction, low function application efficiency, and low operation reliability; the number of bay layer equipment is large, the function is single, and there is no redundancy. In case of a failure, the equipment information collection function fails, resulting in incomplete real-time data; the entire station lacks effective operation monitoring and maintenance tools, insufficient support for substation equipment inspection, on-site operation, and maintenance services, and on-site operation and maintenance personnel cannot monitor in time and troubleshoot. At present, the main technical problems in the intelligent substation automation system are: the scheme of configuring the measurement and control devices according to the interval layer results in a large number of measurement and control devices, high construction costs, and a large amount of maintenance; there is no backup for the measurement and control devices. will not work properly.

Contents of the invention

In order to solve the above-mentioned technical problems, the utility model proposes a novel smart substation bay layer device cluster measurement and control device, which adopts two-layer equipment (station control layer equipment and bay layer equipment, eliminating the process layer equipment), a first-level network ( The previous process layer network and station control layer network are combined into one) to achieve the purpose of simplifying the network and facilitating function integration. The intelligent substation is optimized from the two levels of equipment layout and function integration to achieve the purpose of reducing the configuration of the equipment measurement and control devices in the bay layer, so that the equipment in the bay layer can realize information sharing, integration and interaction at a higher level. On the one hand, through the optimization and integration of monitoring system functions, the configuration of bay layer equipment is simplified, the functional cross-interface between specialties is clarified, and the compliance of various current standards and specifications is grasped, so as to facilitate better operation and maintenance management; on the other hand, The interactive main line of the information flow of the secondary system of the smart substation is sorted out, and on this basis, networked information sharing, integration and interaction are realized. The technical scheme that the utility model adopts is as follows:

A cluster measurement and control device for bay layer equipment in an intelligent substation, including: two sets of measurement and control sub-equipment with completely identical board configurations and serving as backups for each other, each set of measurement and control sub-equipment can operate independently to realize a complete bay layer equipment cluster measurement and control function; each The board configuration of a set of measurement and control sub-equipment includes: power supply board, process layer interface board with SV/GOOSE receiving interface and GOOSE sending interface, input board, main processing board, power supply board and process layer interface of each measurement and control sub-equipment The board and the input board are respectively electrically connected to the main processing board to realize data interaction and measurement and control management. The input board connects the binary switch input signal, transmits it to the main processing board, and converts it into GOOSE (Generic Object Oriented Substation Event, Generic Object Oriented Substation Event) information by the main processing board, and sends it to other intelligent electronic devices in the substation. Forward.

After the utility model replaces the existing measurement and control device with the cluster measurement and control device, the number of measurement and control devices in the interval layer is greatly reduced, the installation, commissioning and operation and maintenance costs of the monitoring system are reduced, and the problem of no separate backup measurement and control device in the existing monitoring system is solved. Outstanding issue.

Preferably, the main processing board adopts a 36-core 64-bit processor capable of running an embedded Linux operating system, and each core can independently complete the single-interval measurement and control function, and the main processing board receives the slave process layer interface internally. The SV (Sampled Values, sampled value) and GOOSE information transmitted by the board are distributed to the corresponding cores of each interval to complete the measurement and control functions of the corresponding intervals. The main processing board also has an MMS Ethernet interface and a GPS time synchronization interface. Through the MMS interface, the cluster measurement and control device interacts with the station control layer equipment of the substation, and sends the measurement and control information of the bay layer to the dispatching center through the station control layer equipment, and receives the information sent by the dispatching center. The remote remote control command from remote; the GPS time synchronization interface can receive IRIG-B code or second pulse time synchronization signal, and realize the processing ability of measurement and control data with absolute time scale through GPS time synchronization.

Preferably, the power supply board, process layer interface board, and input board of each set of measurement and control sub-equipment are electrically connected to the main processing board through a connection motherboard, and the connection motherboard provides data lines, control cord and power cord connection. Using the connecting motherboard to realize the electrical connection can shorten the length of the power supply and signal connection, and increase the anti-interference ability of the measurement and control equipment.

Preferably, both the SV/GOOSE receiving interface and the GOOSE sending interface are Ethernet interfaces. The process layer interface board receives the SV information collected by each interval merging unit in the substation and sent to the process layer network through the SV interface; receives the GOOSE information sent by all intelligent terminals and other intelligent electronic devices in the substation to the process layer network through the GOOSE interface Information; also send remote control commands to the corresponding smart terminal through the GOOSE sending interface. The process layer interface board also forwards the SV and GOOSE information to the main processing board through the internal bus on the motherboard.

Preferably, the measurement and control sub-equipment of the two sets of boards with exactly the same configuration are integrated and installed in one chassis. Two sets of measurement and control sub-equipment integrated in one chassis can realize independent redundant backup. If a hardware failure occurs in one set of equipment, the measurement and control function can be seamlessly switched by the other set of equipment; The backup plan can reduce the size of the equipment and the floor area of the screen cabinet, which is convenient for operation and management.

The beneficial effects of the utility model:

(1) In the smart substation, the measurement and control devices that were originally configured independently at each interval were replaced by a cluster measurement and control device, and an identical redundant backup device was configured to improve reliability, which greatly reduced the number of measurement and control devices at the bay level;

(2) The SV and GOOSE interfaces conforming to the IEC61850 standard are fully adopted externally, which improves the interoperability of the input and output of the measurement and control device, and can be connected to merging units, intelligent terminals and other equipment of different manufacturers;

(3) After the intelligent substation monitoring system adopts the cluster measurement and control device, the debugging workload during the project implementation process and the later maintenance workload are greatly reduced, and the construction and maintenance costs of the intelligent substation automation system are reduced;

(4) From the overall perspective of the substation, integrate and optimize the software and hardware of the monitoring system, coordinate and optimize the configuration of the secondary system in the substation, reduce the duplication of equipment and functions, and effectively reduce the number of equipment in the bay layer and the required equipment layout. construction area, simplify the internal structure of the substation, and improve operational efficiency;

(5) Optimize the networked collection method of data, simplify the network structure, and effectively reduce the number of switches used; realize the reasonable connection of equipment, network and system according to business and management requirements through standardized design, and achieve the best overall cost performance within a long life cycle, fully Meet the requirements of major construction, major operation and major overhaul.

Description of drawings

Fig. 1 is a board layout of the utility model;

Fig. 2 is a schematic block diagram of the hardware structure of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, specifically illustrate the embodiment of the present utility model.

As shown in Figure 1, it is a board layout diagram of the utility model. In one chassis, two sets of measurement and control sub-equipment with exactly the same board configuration are integrated and installed, and the two sets of measurement and control sub-equipment form a mutual backup technical solution. The board configuration of each set of measurement and control sub-equipment includes: power supply board, process layer interface board with SV/GOOSE receiving interface and GOOSE sending interface (the above-mentioned interfaces are all Ethernet interfaces), input board, main processing board, each The power supply board, process layer interface board, and input board of the set of measurement and control sub-equipment are all electrically connected to the main processing board through a connection motherboard. In the layout of boards, an empty position and an extended spare position can also be reserved, wherein the empty position is reserved for heat dissipation of the main processing board, and the expanded spare position is reserved for increasing the drive-in board in applications with more drive-in.

As shown in Figure 2, it is a schematic block diagram of the hardware structure of the present utility model. The main processing board is the core of the cluster measurement and control device. In this embodiment, the main processing board adopts the 64-bit many-core processor TILE-Gx 8036 of Tilera64 Company. This processor has 36 cores and has super processing capability. Embedded Linux is used as the operating system, and each core independently completes the single-interval measurement and control function, and the entire main processing board can fully meet the measurement and control function requirements of the entire intelligent substation. The main processing board internally receives the SV and GOOSE information transmitted from the process layer interface board through the connection motherboard, and distributes them to the corresponding cores of each bay to complete the measurement and control functions of the corresponding bays. The main processing board also has 4 MMS Ethernet interfaces. Through the MMS interface, the cluster measurement and control device interacts with the station control layer equipment of the substation, and sends the measurement and control information of the bay layer to the dispatching center through the station control layer equipment, and receives the remote control information sent by the dispatching center. remote command. The main processing board has a GPS time synchronization interface, which can receive IRIG-B code or second pulse time synchronization signal, and realize measurement and control data processing capability with absolute time scale through GPS time synchronization. The FLASH of TILE-Gx 8036 processor is used as program memory and measurement and control parameter memory; DDR is used as program running memory; FPGA is used as chip selection logic and auxiliary functions such as timer and timer.

The power supply module of the power supply board provides power supply for the measurement and control sub-equipment. The input is an external 220V DC or AC power supply, and the output is 24V, 15V and 5V DC power supply. Each DC power supply is connected to other boards through the power cord connected to the motherboard. . The input module of the input board is connected with the binary switch input signal, transmitted to the main processing board, and converted into GOOSE information by the main processing board, and forwarded to other intelligent electronic devices in the substation. The Ethernet switching module of the process layer interface board realizes information exchange through the SV interface/GOOSE interface.

Claims (6)

1. A smart substation bay layer equipment cluster measurement and control device, characterized in that it includes: two sets of board configurations are identical, mutually standby measurement and control sub-equipment, the board configuration of each set of measurement and control sub-equipment includes: power supply board, The process layer interface board, input board, and main processing board with SV/GOOSE receiving interface and GOOSE sending interface, the power supply board, process layer interface board, and input board of each set of measurement and control sub-equipment are respectively electrically connected to the main processing board. 2. A smart substation bay level equipment cluster measurement and control device according to claim 1, wherein the main processing board adopts a 36-core 64-bit processor capable of running an embedded Linux operating system. 3. A device cluster measurement and control device for intelligent substation bay layer equipment according to claim 2, wherein the main processing board also has an MMS Ethernet interface and a GPS time synchronization interface. 4. A kind of intelligent substation bay layer equipment cluster measurement and control device according to claim 3, characterized in that, the power supply board, process layer interface board, and drive-in board of each set of measurement and control sub-equipment are respectively connected to the main board through a connecting motherboard The processing board is electrically connected, and the connection motherboard provides the connection of data lines, control lines and power lines between the boards. 5 . The device cluster measurement and control device for intelligent substation bay layer equipment according to claim 4 , wherein both the SV/GOOSE receiving interface and the GOOSE sending interface are Ethernet interfaces. 6 . 6 . The device cluster measurement and control device for the bay layer equipment of an intelligent substation according to any one of claims 1-5 , wherein the measurement and control sub-equipment of the two sets of boards with exactly the same configuration are integrated and installed in one chassis.