CN105024454A - Transformer substation secondary equipment monitoring system - Google Patents

Abstract

<b>The substation secondary equipment monitoring system belongs to the technical field of secondary equipment</b><b>,</b><b> especially relates to a substation secondary equipment monitoring system. The invention provides a substation secondary equipment monitoring system with stable operation and low cost. The invention includes a monitoring host, a data communication gateway, a data server, a public measurement and control device, a transformer backup protection measurement and control device, a transformer differential protection device, a </b><b>10kV</b><b> network switch and a main transmission line , the main transmission lines of its structure are respectively connected with the monitoring host communication port, data communication gateway communication port, data server communication port, public measurement and control device communication port, transformer backup protection measurement and control device communication port, transformer differential protection device communication port,</b ><b>10kV</b><b>Connect to the communication port of the network switch, </b><b>10kV</b><b>The communication port of the network switch is connected to </b><b>10kV</b ><b>The communication port of the measurement, control and protection device is connected to the communication port of the intelligent terminal of the main transformer body. </b>

Description

Substation secondary equipment monitoring system

technical field

The invention belongs to the technical field of secondary equipment, and in particular relates to a monitoring system for secondary equipment of a substation.

Background technique

Smart substation refers to the digital communication of the primary electrical equipment in the substation. The digital primary equipment and the secondary intelligent devices are all based on the unified standard platform of the whole station for data modeling and communication, and on the basis of this platform, mutual operation is realized. sex. Electrical secondary equipment refers to equipment that measures, controls, monitors and protects the operating status of primary equipment and systems. The existing substation secondary equipment monitoring system is not stable enough, and the cost needs to be reduced.

Contents of the invention

The present invention aims at the above problems and provides a substation secondary equipment monitoring system with stable operation and low cost.

In order to achieve the above object, the present invention adopts the following technical solutions. The present invention includes a monitoring host, a data communication gateway, a data server, a public measurement and control device, a transformer backup protection measurement and control device, a transformer differential protection device, a 10kV network switch and a main transmission line. Structural points The main transmission line is respectively connected with the communication port of the monitoring host, the communication port of the data communication gateway, the communication port of the data server, the communication port of the public measurement and control device, the communication port of the transformer backup protection measurement and control device, the communication port of the transformer differential protection device, and the communication port of the 10kV network switch The communication port of the 10kV network switch is connected to the communication port of the 10kV measurement and control protection device and the communication port of the intelligent terminal of the main transformer body, and the control port of the intelligent terminal of the main transformer body is connected to the control port of the primary switchgear through a cable.

The communication port of the transformer differential protection device is respectively connected with the communication port of the intelligent terminal integration device of the main transformer incoming line merging unit and the communication port of the intelligent terminal integrated device of the merging unit, and the ports of the main transformer incoming line merging unit intelligent terminal integration device are connected to each other through cables respectively. The control port of the primary switchgear is connected with the signal port of the current transformer, and the port of the intelligent terminal integrated device is respectively connected with the control port of the primary switchgear and the signal port of the current transformer through cables.

The data communication gateway is sequentially connected to the regional power dispatching data network through a switch, a longitudinal encryption authentication device, and an access router.

As a preferred solution, the data communication gateway of the present invention includes a data communication gateway 1 in district I, a data communication gateway 2 in district I, a data communication gateway in district II, a data communication gateway 1 in district I, a data communication gateway 2 in district I, and a data communication gateway in district II. The signal ports of the data communication gateway are connected, and are respectively connected to the regional power dispatching data network 1 and the regional power dispatching data network 2 through the switch, the longitudinal encryption authentication device, and the access router in sequence.

As another preferred solution, the model of the public measurement and control device in the present invention is pcs-9075b, the model of the transformer backup protection measurement and control device is pcs-968d, the model of the transformer differential protection device is pcs-9671d, and the model of the main transformer body intelligent terminal is pcs -222tu, merging unit intelligent terminal integrated device and main transformer incoming line merging unit intelligent terminal integrated device model is pcs-222ea-g (pcs-9075b, pcs-968d, pcs-9671d, pcs-222tu, pcs-222ea-g Both are products of Nanjing Nanrui Jibao Electric Co., Ltd.).

As another preferred solution, the present invention also includes an integrated application server, the integrated application server port is connected to the main transmission line and the port of the data communication gateway in the III/IV area respectively, and the port of the data communication gateway in the III/IV area passes through the forward and reverse isolation devices Connect with the integrated application server port.

Secondly, the present invention also includes an auxiliary facility monitoring part, and the communication port of the auxiliary facility monitoring part is connected to the main transmission line.

In addition, the auxiliary facility monitoring part of the present invention includes a smoke sensor, a camera, and a monitoring host, and the communication ports of the monitoring host are respectively connected to the signal output port of the smoke sensor, the signal output port of the camera, and the communication port of the main line.

The invention has beneficial effects.

The present invention is beneficial to the safe and stable operation of the substation and the cost reduction of the substation through the cooperative operation of various parts.

(1) The number of secondary cables in the station can be greatly reduced, and the secondary wiring in the station can be simplified. The investment in secondary cables is saved, and to a certain extent, substation accidents caused by secondary cables and secondary networks during operation are avoided.

(2) Due to the high degree of data sharing, the secondary system configuration can be simplified or merged, which saves the secondary system equipment investment and floor space.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following expressions.

Fig. 1 is the left half of the structure diagram of the present invention.

Fig. 2 is the right half of the structure diagram of the present invention.

Detailed ways

As shown in the figure, the present invention includes a monitoring host, a data communication gateway, a data server, a public measurement and control device, a transformer backup protection measurement and control device, a transformer differential protection device, a 10kV network switch, and a main transmission line. Monitoring host communication port, data communication gateway communication port, data server communication port, public measurement and control device communication port, transformer backup protection measurement and control device communication port, transformer differential protection device communication port, 10kV network switch communication port connection, 10kV network switch communication port They are respectively connected to the communication port of the 10kV measurement and control protection device and the communication port of the intelligent terminal of the main transformer body, and the control port of the intelligent terminal of the main transformer body is connected to the control port of the primary switchgear through cables.

The communication ports of the transformer differential protection device are respectively connected to the communication port of the intelligent terminal integration device of the main transformer incoming line merging unit and the communication port of the intelligent terminal integrated device, and the ports of the main transformer incoming line merging unit intelligent terminal integration device are respectively connected to the primary switch through cables. The equipment control port is connected to the signal port of the current transformer, and the port of the intelligent terminal integrated device is respectively connected to the control port of the primary switching equipment and the signal port of the current transformer through cables.

The data communication gateway is sequentially connected to the regional power dispatching data network through a switch, a longitudinal encryption authentication device, and an access router.

The monitoring host integrates the operator station and the engineer workstation to uniformly realize the collection and processing of various data in the station, realize the operation monitoring, operation control, comprehensive information analysis and intelligent alarm of the equipment in the station, and prevent false locking operations and other functions; provide The man-machine interface realizes the status query, parameter configuration, maintenance management, etc. of the primary and secondary equipment of the whole station.

Configure a data server to realize centralized storage of panoramic data of smart substations, and provide unified data query and access services for various applications.

Described data communication gateway comprises I district data communication gateway 1, I district data communication gateway 2, II district data communication gateway, and I district data communication gateway 1, I district data communication gateway 2, II district data communication gateway signal ports are connected, respectively It is connected with the regional power dispatching data network 1 and the regional power dispatching data network 2 through the switch, the vertical encryption authentication device and the access router in turn. Dual configuration of data communication gateways in Zone I, single configuration of data communication gateways in Zone II, and single configuration of III/IV data communication gateways to realize the communication between the substation and dispatching and production master station systems, and realize the master station system Functions such as substation monitoring and control, information query and remote browsing provide data, model and graphic transmission.

The invention also includes a comprehensive application server, the ports of the comprehensive application server are respectively connected with the main transmission line and the port of the data communication gateway of the III/IV area, and the port of the data communication gateway of the III/IV area is connected with the port of the comprehensive application server through forward and reverse isolation devices. The integrated application server receives system data and performs centralized processing and display, which is conducive to the realization of unattended and remote control of substations.

The invention also includes an auxiliary facility monitoring part, and the communication port of the auxiliary facility monitoring part is connected with the main transmission line.

The transformer backup protection measurement and control device, the transformer differential protection device, and the intelligent terminal of the main transformer body realize the opening and closing control of the switchgear through the touch screen, and cancel the conventional control handles and indicating circuits and other analog operations to realize the background operation of opening and closing, improving Anti-mistake level, enhance the reliability of circuit breaker control mechanism.

The merging unit and the intelligent terminal of the present invention are all arranged in the intelligent control cabinets of each interval. For the merging unit and the intelligent terminal, they belong to the process layer equipment in terms of functional roles, and lack One cannot, so under the premise of installing the two in the same cabinet, it is advisable to consider integrating the functions of the two, that is, to use the combined unit intelligent terminal integrated device to realize the primary equipment (circuit breaker, knife switch, transformer) in the same interval ) Unified process layer digital interface.

It can be understood that the above specific descriptions of the present invention are only used to illustrate the present invention and are not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or Equivalent replacements to achieve the same technical effect; as long as they meet the needs of use, they are all within the protection scope of the present invention.

Claims (6)

1. substation secondary device supervisory control system, comprise monitoring host computer, data communication gateway, data server, public measure and control device, transform er backup protection measure and control device, differential protective device of transformer, the 10kV network switch and main transmission line road, it is characterized in that main transmission line road respectively with monitoring host computer communication port, data communication gateway communication port, data server communication port, public measure and control device communication port, transform er backup protection measure and control device communication port, differential protective device of transformer communication port, 10kV network switch communication port is connected, 10kV network switch communication port respectively with 10kV measuring and controlling protective device communication port, main transformer body intelligent terminal communication port is connected, main transformer body intelligent terminal control port is connected with a switchgear control port by cable,

described differential protective device of transformer communication port is connected with main transformer inlet wire merge cells Intelligent terminal integration device communication port, merge cells intelligent terminal integrated device communication port respectively, main transformer inlet wire merge cells Intelligent terminal integration device port is connected with switchgear control port, a current transducer signal port respectively by cable, and intelligent terminal integrated device port is connected with switchgear control port, a current transducer signal port respectively with by cable;

described data communication gateway is connected with area power dispatching data network by switch, longitudinal encrypting and authenticating device, couple in router successively.

2. substation secondary device supervisory control system according to claim 1, it is characterized in that described data communication gateway comprises I district data communication gateway 1, I district data communication gateway 2, II district data communication gateway, I district data communication gateway 1, I district data communication gateway 2, II district data communication gateway signal port are connected, and are connected successively respectively by switch, longitudinal encrypting and authenticating device, couple in router with area power dispatching data network one, area power dispatching data network two.

3. substation secondary device supervisory control system according to claim 2; it is characterized in that described public measure and control device model is pcs-9075b; transform er backup protection measure and control device model is pcs-968d; differential protective device of transformer model is pcs-9671d; main transformer body intelligent terminal model is pcs-222tu, and merge cells intelligent terminal integrated device and main transformer inlet wire merge cells Intelligent terminal integration device model are pcs-222ea-g.

4. substation secondary device supervisory control system according to claim 3, characterized by further comprising integrated application server, integrated application Service-Port is connected with main transmission line road, III/IV district data communication gateway port respectively, and III/IV district data communication gateway port is connected with integrated application Service-Port by forward and reverse spacer assembly.

5. according to claim 4, substation secondary device supervisory control system, characterized by further comprising auxiliary equipment monitor portion, and auxiliary equipment monitor portion communication port is connected with main transmission line road.

6. substation secondary device supervisory control system according to claim 5, it is characterized in that described auxiliary equipment monitor portion comprises Smoke Sensor, camera, monitoring host computer, monitoring host computer communication port is connected with Smoke Sensor signal output port, camera signals output port, main line communication port respectively.