МЕТОД ПРЯМОГО КЕРУВАННЯ STATCOM ДЛЯ ЗМЕНШЕННЯ КОЛИВАНЬ НАПРУГИ У ВУЗЛІ НАВАНТАЖЕННЯ РОЗПОДІЛЬНОЇ МЕРЕЖІ

• Дата: 2026
• Автори: Бурбело, М.Й., Бабенко, О.В.
• Формат: Стаття
• Опубліковано: Інститут електродинаміки НАН України, Київ 2026
• Теми: статичний синхронний компенсатор (STATCOM); коефіцієнт нестабільності; реактивна потужність; стабілізація напруги
• Онлайн доступ: https://techned.org.ua/index.php/techned/article/view/1814
• Назва журналу: Technical Electrodynamics

The article proposes a method of direct control of the static synchronous compensator (STATCOM) to reduce voltage fluctuations due to load and supply voltage instability in distribution electric networks. The operation of the STATCOM operating in the voltage stabilization mode of the 10 kV distribution electric network node is analyzed. The value of the compensator EMF is obtained, which provides a stable value of the load node voltage when the consumer load conductivity changes. The specified EMF is determined by the values of the increments of the active and reactive components of the load current, the voltage of the compensator connection node at a zero value of the STATCOM reactive current and the parameters of the electric network. The process of voltage stabilization in the load connection node under the condition of changes in the power source voltage and the corresponding compensator control law are analyzed, which involves the use of such informative parameters as the current and base values of the power source voltage, network parameters, and the voltage of the STATCOM connection node. Expressions for determining the EMF of the STATCOM, which provides a stable voltage at the compensator connection point and the load, as well as a zero value of the active power in the compensator circuit under unstable load conditions, as well as changes in the power supply voltage, are obtained. It is shown that for the efficient operation of the compensator, it is necessary to perform measurements of the load currents and the load bus voltage. The STATCOM operation is simulated under the condition of changing the active and reactive load of the consumer in the range of ±25% and fluctuations in the power supply voltage within 2%, which is most often observed in electrical networks.  It is shown that for an average load power of 4+j2 MVA and a stabilized voltage of 10.25 kV, the compensator power ranges from −0.57 MVAr to 2.4 MVAr. If the voltage stabilization level needs to be increased to 10.3 kV, the compensator power rises to 2.8 MVAr. References 16, Fig. 7, Table 1.