Abstract
The Smart Grid system become to apply all over the world. It provides significant efficiency increasing of power supply networks by supporting its balanced load. The key design features of each Smart Grid system depend on individual characteristics of particular power supply network which are determined by the structure of its electrical energy consumers. Relating to Kuzbass open-pit coalmines it is necessary to take into account the nonstationarity of its power supply scheme, the strict requirements of power supply reliability and the high capacity of consumers. This article is connected with the “Kedrovskiy” open-pit coalmine and describes its power supply scheme and the structure of its consumers. The downtimes and electrical equipment failures are analyzed and the connection between the number of emergency downtime and the number of working excavators is found out. The load of “Kedrovskiy” power distribution network is calculated for the strip mining operation. The results show power distribution network under consideration does not provide the effectiveness functioning and the implementation of Smart Grid is a good decision. There are the structure and design calculation of proposed Smart Grid in the article. It is finally depicted that Smart Grid” system decreases the downtimes of electric equipment and increases the power supply reliability.
Highlights
An electrical grid is a complicated system that consists of wires and transmission towers, cables, transformers and breakers, which are interconnected some way with each other and with electrical energy consumers
The key design features of each Smart Grid system depend on individual characteristics of particular power supply network which are determined by the structure of its electrical energy consumers
Relating to Kuzbass open-pit coalmines it is necessary to take into account the nonstationarity of its power supply scheme, the strict requirements of power supply reliability and the high capacity of consumers
Summary
An electrical grid is a complicated system that consists of wires and transmission towers, cables, transformers and breakers, which are interconnected some way with each other and with electrical energy consumers. Power distribution network is supplied from a limited number of power supply sources, which are heat power station or diesel power station, but power distribution network has tended to become a decentralized bidirectional intelligent grid of consumers and different kind of supply sources including renewable energy generation Such distribution network is called Smart Grid [1]. Taking into consideration the open-pit coalmine specific, communication between sensors and control center may be organized with wireless technology [9] Another part of Smart Grid system for open-pit coalmine may become the generators that use kinetic energy from transported gangue material [10] or supercapacitor for use in the rope shovels [11].
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