Power system remote technology: application of communication technology and computer technology to collect real-time data and information of the power system, monitoring and control of the operation of the power network and remote power plants, substations, etc.
The remote monitoring and control technology for the power system dispatch service.
The remote monitoring and control technology for power system dispatching service. Due to the characteristics of electric energy production, energy centers and load centers are generally far away from each other, the power system is distributed in a wide range of geographic areas, in which the distance between power plants, substations, power dispatch centers and users is as close as dozens of kilometers, or as far as hundreds of kilometers or even thousands of kilometers.
To manage and monitor the distribution of a wide range of plants, stations and equipment, components of the operating conditions, has not been able to use the usual mechanical contact or telephone contact to transfer control information or feedback data, must resort to a technical means, which is the remote technology.
Expanded information:
With the development of science and technology, the content of the telematic technology and the realization of the technical means of continuous development, updating can be roughly divided into three stages.
The first stage:
The 1930s: relays and electronic tubes as the main components of the telecontrol equipment. These devices with relays, magnetic cores constitute telecommunication, telemodulation, remote control equipment; with electronic tubes and magnetic amplifiers constitute pulse frequency telemetry; modulation demodulation using pulse amplitude modulation type. The operation of these devices is reliable, and has played a role in the scheduling management of the power system.
The second stage:
50 ~ early 60s: semiconductor devices as the main body, the use of analog-to-digital conversion technology and pulse coding technology, information theory of anti-jamming coding, and computer technology combined with a comprehensive telematics equipment; will be telemessaging, telemetry, telemetry, telemetry, telemetry, remote control integrated into the cycle of point-to-point telematics equipment; modem using the FM system is the main.
Third stage:
After the 60s: the use of microcomputers to form a telecontrol system, the main feature of which is the main station end (scheduling end) to form a preamplifier to receive and process the telecontrol information, which can receive information from multiple remote stations, the preamplifier and can be forwarded to the upper level of the information and drive analog disk.
Baidu Encyclopedia - Power System Telematics
Baidu Encyclopedia - Power System Telematics