CN201122347Y - A monitoring system for electric power direct current system - Google Patents

Abstract

The utility model relates to a monitoring system of an electric power direct current system, comprising: an intelligent operation device and an electric power data network, and is characterized in that: the main alarm signal generated by the intelligent operation device is transmitted to a remote computer by a SCADA system, and for the The alarm signal that appears on the computer is analyzed by the monitoring personnel through the power data network. The utility model adopts the combination of important alarm information connected to the SCADA system and comprehensive power supply data through the WEB browsing mode of the power information network. By adopting this mode, the monitoring personnel can find out in time when an alarm occurs, and can also be used for troubleshooting and accident analysis. Detailed data can be obtained. This method can also achieve the function of monitoring DC real-time working conditions by personnel at any point on the power data network and implementing multi-party monitoring.

Description

A monitoring system for electric power direct current system

technical field

The utility model relates to a monitoring system of an electric direct current system.

Background technique

At present, the power DC system is the power supply. The monitoring technologies usually considered are: First, access to the integrated network management. Although it can be managed in a unified manner with the situation of the communication equipment in the station, the integrated network management needs the support of database technology. The cost of database technology is high, and the amount of maintenance In addition, the integrated network management cannot support the application of multiple users in different places. According to the operation and management process of the DC power supply, to monitor and understand the operating status, it is necessary for multiple users to use the integrated network management information at different points. At present, the comprehensive network management technology is still in the development stage, and the cost is high and the implementation is difficult. The second is to use the RTU (remote device) device in the station to connect to the SCADA (monitoring, control and data acquisition) system. According to calculations, a station needs 160 remote measurement and 40 remote signaling. The amount of remote measurement and remote signaling needs to be doubled in dual power supply configuration. Although there is no technical problem, the amount of transmitted data is relatively large during normal operation. Although the cost of this solution is relatively low, the capacity of the current SCADA system is relatively small and cannot achieve sufficient monitoring effects.

Therefore, how to provide a relatively economical monitoring system for the electric DC system based on the existing electric power technical conditions is one of the contents that the applicant is devoted to research.

Utility model content

The purpose of the utility model is to provide a monitoring system of an electric DC system in an economical way based on the existing electric power technical conditions.

The utility model provides a monitoring system for an electric DC system, which includes several intelligent operating devices connected in sequence, a local area network connected to the intelligent operating device, a power data network connected to the local area network in the station, and a power data network connected to the Several computers on the data network are characterized in that: it also includes a SCADA system connected to each intelligent operating device.

In the monitoring system of the above-mentioned electric DC system, the intelligent operation equipment includes a 48V DC power supply device, a rectification and charging management module connected to the 48V DC power supply device, a livestock battery patrol module and a bus voltage management module, and the livestock battery patrol module A connected monitoring host and a protocol conversion module connected with the monitoring host.

In the monitoring system of the above-mentioned electric power DC system, the intelligent operation equipment includes a 110V DC power supply device, a rectification and charging management module connected to the 110V DC power supply device, an animal battery patrol module, an insulation detection module and a bus voltage management module, and the 110V DC power supply device. A monitoring host connected to the livestock battery patrol module and a protocol conversion module connected to the monitoring host.

Due to the adoption of the above-mentioned technical solution, the utility model adopts the combination of important alarm information access to the SCADA system and comprehensive power supply data through the power information network WEB browsing mode. In this way, the monitoring personnel can find out in time when an alarm occurs, Detailed data can also be obtained during troubleshooting and accident analysis. This method can also achieve the function of monitoring DC real-time working conditions by personnel at any point on the power data network and implementing multi-party monitoring.

Description of drawings

Fig. 1 is the monitoring schematic diagram of the electric DC system of the present utility model;

Fig. 2 is a schematic diagram of the monitoring system of the electric DC system of the present invention.

Detailed ways

The gist of the utility model is: in consideration of the existing electric power technical conditions and economic affordability, the SCADA+WEB mode electric power direct current system monitoring technology is adopted.

Referring to Fig. 1, the main alarm signal that the intelligent operation equipment 1 operates adopts the existing SCADA system 2 to be transmitted to the computer 3 places on duty at the far end;

If the main alarm signal appears on the computer 3, it needs to analyze the alarm content in detail by adopting WEB technology, by utilizing the power data network 4 and the protocol converter 5 to implement.

Advantages: Main or important alarms are converged with SCADA to avoid non-main alarms from distracting the attention of operating personnel. If an alarm occurs, further analysis or further use of WEB is used.

The utility model relates to a monitoring system for a power direct current system. Referring to Fig. 2, it comprises several intelligent operation equipments 21,22 connected in turn, the intra-station local area network 31 that links to each other with described intelligent operation equipment, the power data network 41 that links to each other with this intra-station local area network 31 and connects on this electric power data network 41 Several computers 51 are characterized in that: it also comprises the SCADA system 61 that is connected on each intelligent operation equipment.

The intelligent running device 21 may be, including a 48V DC power supply device 211, a rectification and charging management module 212 connected to the 48V DC power supply device 211, an animal battery patrol module 213, an insulation detection module 213 and a bus voltage management module 214, and the animal battery The structure of the monitoring host 215 connected to the battery patrol module 213 and the protocol conversion module 216 connected to the monitoring host 215 . It can also be that the intelligent operation equipment includes a 110V DC power supply device, a rectification and charging management module 222 connected to the 48V DC power supply device 221, an animal battery patrol module 223, an insulation detection module 224 and a bus voltage management module 225, and the animal The structure of the monitoring host 226 connected to the battery patrol module and the protocol conversion module 227 connected to the monitoring host 226

In summary, the utility model uses the existing SCADA system to transmit the main alarm signal of the intelligent operation equipment to the computer on duty at the far end; if the main alarm signal appears on the computer, the WEB technology is used For implementation, detailed analysis of the alarm content is required.

The utility model has been described in detail above in conjunction with the embodiments of the accompanying drawings, and those skilled in the art can make various changes to the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation to the utility model, and the utility model shall take the scope defined by the appended claims as the protection scope of the utility model.

Claims (3)

1. the monitoring system of an electric power DC system, comprise successively several intelligent operation equipment of connecting, with station that described intelligent operation equipment links to each other in LAN (Local Area Network), the electric power data network that links to each other with LAN (Local Area Network) in this station and be connected several online computing machines of this electric power data, it is characterized in that: it also comprises the SCADA system that is connected on each intelligent operation equipment.

2. the monitoring system of electric power DC system according to claim 1, it is characterized in that described intelligent operation equipment comprises that 48V continuous-current plant, the rectification charging administration module, the battery that are connected with this 48V continuous-current plant respectively patrol module with the busbar voltage administration module, patrol module monitoring host computer that links to each other and the protocol conversion module that links to each other with this monitoring host computer with this battery.

3. the monitoring system of electric power DC system according to claim 1, it is characterized in that described intelligent operation equipment comprises that 110V continuous-current plant, the rectification charging administration module, the battery that are connected with this 110V continuous-current plant respectively patrol module, insulation monitoring module and busbar voltage administration module, patrol module monitoring host computer that links to each other and the protocol conversion module that links to each other with this monitoring host computer with this battery.

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