Результаты: Получены коэффициенты квадратичных полиномов, определяющих статические характеристики нагрузки по напряжению, по активной и реактивной мощности для различных узлов комплексной нагрузки на сторонах 6 и 110 кВ ПС 110 кВ Ивановская-12.
Выводы: Полученные в результате исследований коэффициенты квадратичных полиномов статических характеристик нагрузки по напряжению позволят создать более точные модели узлов комплексной нагрузки для расчетов электроэнергетических режимов и статической устойчивости электроэнергетических систем.
Ключевые слова: электроэнергетическая система, энергообъект, комплексная электрическая нагрузка, приемник электрической энергии, подстанция, статическая характеристика нагрузки, активная мощность, реактивная мощность, напряжение.
Background: Voltage steady-state load characteristics are used for calculating electrical network states and network control as well as for estimating voltage stability and increasing the reliability and efficiency of electric power systems. The characteristics obtained in the late 20th century are now obsolete and should be corrected according to the changes in both the overall network structure and specific network components as well as the load types and operating characteristics. The paper shows the results of the authors' research titled «Study of voltage steady-state load characteristics in 6-110 kV power networks in the Central Interregional Dispatching Office operational area of «SO UPS», JSC. The research was commissioned by the nonprofit partnership «Russian National Committee of the International Council on Large Electric Systems».
Materials and methods: Voltage steady-state load characteristics were determined through active and passive experiments on the 110 kV substation «Ivanovskaya_12» as well as modeling in the «Energy UR» software. The results of the active and passive experiments were processed in the «Statistica 12» software.
Results: We obtained the coefficients of quadratic polynomials describing voltage steady-state load characteristics for different electrical nodes at the 6 and 110 kV buses of 110 kV substation “Ivanovskaya_12”.
Conclusions: The computed polynomial coefficients of the voltage steady-state load characteristics can be used to create a more accurate model of various loads for calculating electrical power states and analyzing steady-state stability of power systems.
Key words: electric power system, electric facility, diverse load, receiver of electric energy, substation, steady-state load characteristics, active power, reactive power, voltage.