On May 25th, the first 500 kV Huimin substation equipped with three intelligent new technologies in the “one-time equipment intelligent sequence control systemâ€, “intelligent integrated acceptance system†and “secondary equipment intelligent operation and maintenance system†was successfully put into operation in Shandong. It realizes the primary equipment operation, signal acceptance check and secondary equipment operation of substation from traditional manual manual to intelligent automatic processing, which is of great significance for effectively improving the risk management and control capability, operational accuracy, work efficiency and intrinsic safety guarantee capability of the power grid. .
The primary equipment intelligent sequence control system realizes the remote operation of the knife gate program. In the past, when operating the switch, all the operating items needed to be ordered and reclaimed, which took time and effort. Now, it can safely and automatically complete a series of operations such as quasi-ticket, check, preview, and execution. The operation time of the knife gate is reduced to 1.5 minutes/group, the efficiency is increased by 5 times, and the station end does not need to write a monitoring operation ticket. Frequent reporting and communication, saving labor costs by 50%.
The intelligent integrated acceptance system realizes the automatic acceptance of the main substation comprehensive information. In the past, the acceptance work was limited by the opening time of the channel. It was necessary for multiple parties to complete the signal check of about 5,000 points in the whole station for about 10 days at the same time. Now, before the channel is opened, the system is used to complete the check and acceptance of the signal in the station, and then the unchecked signal is automatically uploaded to the main station. The signal check work with the dispatching master station is increased from the traditional 50 points per hour to 3600 points per hour. The human configuration is reduced to 2 people, and it takes only 1-2 hours to use, which greatly improves the quality and efficiency of information acceptance.
The secondary equipment intelligent operation and maintenance system realizes intelligent automatic processing of all typical operations. First, the platen automatically patrols. In the past, it took about 4 hours for the intelligent station to press the manual inspection, and it was difficult to avoid the leaking and wrong patrol. Now, the time-free manual automatic patrol is realized, and it takes only 10 seconds to patrol it once, and the returning error actively pushes the alarm. The second is to protect the sequence control operation. In the past, intelligent stations were all manually manual step-by-step operations, which were inefficient, and prone to leaks, missed throws, and misplaced, resulting in power outages. Now, just click the corresponding operation shortcut key, the system automatically realizes the protection operation, the operation accuracy is 100%, and the operation efficiency is improved by 6 times.
The successful application of the three intelligent new technologies has effectively solved the thorny problems existing in the field work, further improved the intelligent control and automation level of the relevant process, effectively avoided the misoperation, improved the intrinsic safety guarantee capability of the power grid, and greatly improved the work efficiency. Effectively reduce the burden on the team members, so that the new concept car of the intelligent station will be transformed from the traditional mode of manual driving to the new mode of intelligent safety and automatic driving. It has strong engineering application value and a very broad prospect of comprehensive promotion of the industry.
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