FLEXIBLE ELECTRIC ENERGY TRANSMISSION SYSTEMS IN THE NORTH-EAST OF RUSSIA

PURPOSE. There is the need for expansion of the influence zone of the electric power system of the Republic of Sakha (Yakutia) in order to ensure the reliability and economy of power supply with the maximum use of the advantages of centralized power supply. For this purpose along with the large-scale integration of solar and wind power stations it is necessary to implement the tasks of electric energy transportation as applied to the North-East of Russia on the basis of flexible power transmission systems using a thyristor voltage regulator. METHODS. Long-distance transportation of AC electric power can be performed by compensated or half-wave (tuned to a half-wave) power transmission. RESULTS. Half-wave transmission should be opted for when transmitting AC electric power to long- and super-long distances, since under the condition of stability it does not require additional costs for reactive power compensation while featuring an increased capacity. However, the advisability of tuning to a half-wave occurs when the line length is 1500 km or more. The line, which is shorter than 1500 km should be reduced to the line of «zero length». The reactance of the line whose length is shorter than the boundary length of 1500km is proposed to compensate and reduce to the “zero length” line in order to increase capacity and stabilize the voltage regime along the line using the thyristor stabilizer of parameters developed by the Larionov Institute of the Physical and Technical Problems of the North. CONCLUSION. Future electric power system must be flexible, reliable, cost-effective and environmentally friendly. This combination of tasks can be solved with the help of intelligent technologies. In this context the significance of Flexible Alternative Current Transmission System (FACTS) will increase more and more with the development of electric power systems.

FACTS, «нулевая» длина, Arctic, flexible systems, thyristor stabilizer of parameters, FACTS, «zero» length, compensated lines

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