Brief introduction of power system
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Brief introduction of power system
The power production and consumption system consists of generation, transformation, transmission, distribution and consumption. Its function is to convert the primary energy of nature into electric energy through the power generation device (mainly including boiler, steam turbine, generator and auxiliary production system of power plant), then supply the electric energy to each load center through the transmission, transformation and distribution system, and then convert it into power, heat, light and other different forms of energy through various equipment, so as to serve the regional economy and people's life 。 Because most of the power supply points and load centers are located in different regions and cannot be stored in large quantities, their production, transmission, distribution and consumption are completed in the same time, and they are organically integrated in the same region. The power production must be kept in balance with consumption at all times. Therefore, the centralized development and decentralized use of electric energy, as well as the continuous supply of electric energy and the random change of load, restrict the structure and operation of the power system. Therefore, in order to realize the function of power system, it is necessary to set up corresponding information and control system in each link and at different levels, so as to measure, adjust, control, protect, communicate and dispatch the production and transportation process of electric energy, and ensure users to obtain safe, economic and high-quality electric energy.
The establishment of large-scale power system with reasonable structure is not only convenient for centralized management, unified dispatching and distribution of electric energy production and consumption, reducing the total installed capacity, saving the investment of power facilities, but also conducive to the rational development and utilization of regional energy resources, and more to meet the growing demand of regional national economy. Power system construction is often an important part of national and regional economic development planning.
With the emergence of power system, the use of efficient, pollution-free, easy to use and easy to control power has been widely used, which has promoted the changes in various fields of social production, created the power age, and produced the second technological revolution. The scale and technology of power system has become one of the symbols of a country's economic development level.