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With the continuous development and progress of modern economic society, the power system began to occupy an increasingly important position in all walks of life, the conventional substation management mode cannot meet the needs of related work, so be able to learn from and use substation synthesis automation technology. Under the influence of the continuous development and progress of the national economy, people's daily production and life began to put forward higher and higher demands on the quality of power, how can we ensure that more quality electricity is obtained, and how to further improve the economy of the power grid, as power supply enterprises, power generation enterprises, power distribution companies and related participants need to think and solve the problem. The power quality indicators are divided into harmonic components, voltage amplitude and frequency. Voltage amplitude as an important indicator, the assessment of the object for the voltage of the pass rate; because power consumption and power generation cannot be balanced, so there will inevitably be the phenomenon of voltage fluctuations. The transformer that can carry out the pressure regulator changes the actual number of conductors of the high-voltage side winding to adjust the voltage of the low-voltage side and the medium voltage to adjust the total voltage better. Under the influence of various factors, there are still many problems in the substation reactive power automatic control system. At the same time, the corresponding improvement and improvement measures are put forward to solve these problems in order to create more economic and social benefits.

Research on Voltage and Reactive Power Integrated Automatic Control System in Substation