There are many major issues in the power system that need to be monitored in real-time, such as transmission line temperature, dynamic thermal rating, fault detection and more. Compared with the traditional circuit system relied on expert experience to deploy electricity, the new type of grid can combine the booming IoT technology and rapid cloud computing to collect and analysis data. With the overall power grid information and through the powerful back-end computing, power companies can rely on reliable and scientific analysis results to dispatch and maintain power transmission. At the same time if the data can be presented more intuitive, the information can be more user-friendly to be interpreted easily.
In the past, the power data presented mostly in digital mode so the dispatcher needed to learn to interpret the data. However, the interface we designed is especially intuitive and graphically presented. The graph could be presented on the mobile device according to the customer's needs, thus lowering the learning threshold. In addition to dispatchers, other employees such as maintenance personnel can also easily access the information of power grid to do more immediate maintenance and rescue.
When the transmission line temperature is too high, it will cause the line sag, and touch the obstacle to cause a short circuit, or even a more serious ground accident, and this change can not be restored. Therefore, how to maintain the transmission line temperature within a certain range is a eager problem to solve for power companies around the word. Our transmission line monitoring device can not only monitor the instantaneous line temperature, but also estimate the line temperature through the cloud computing. And at the same time, achieve the purpose of adjusting the transmission capacity, and avoid transmission line sag from exceeding the maximum load current.
Due to the topography, population density and other factors, most of the EHV transmission towers are built on remote hillside terrain, where is not easy to access due to poor traffic conditions, so it is not easy to conduct manual inspections and inspections, especially after the natural disasters. Besides, the personal safety of the maintenance personnel is threatened. However, the fault point of the power transmission line may be easily neglected since it sometimes just a tiny black spot of coin size. In addition, the power transmission lines often cross both sides of the hill, and even experienced masters need repeated inspections to find, thus consuming a lot of manpower and time. Our system uses IoT technology, which can pinpoint the point of failure and receive maintenance notice immediately, to reduce the economic losses caused by power outages and public inconvenience.
Traditional power companies based on safety considerations, set the transmission line current carrying capacity to less than one-half of the actual load or even less than one-fourth of the actual load, leaving too much safety capacity. In the face of rising demand of electricity, the traditional grid is bound to face the crisis about power transmission issues, so the new state of the grid will need fault diagnosis, and even the ability to prevent failures. Our back-end software services, using accurate dynamic thermal capacity forecasting technology, can dynamically estimate and predict the upper limit of current carrying capacity in the next few hours, and effectively increase the flexibility of dispatching and distribution, which not only increases the capacity of current capacity dispatching, but also guarantees power transmission line safety.