Best scientific research 2022
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RESEARCH - 2022 64 Reactive power compensation is an important technical measure, one how many purposes can be used. First, compensation of reactive power is necessary to ensure the balance of reactive power, secondly, the use of compensating devices is used to reduce the loss of electrical energy in the network, and thirdly, compensating devices are used to adjust voltages. By installing compensating devices (capacitor batteries), voltage loss in the line is reduced. As a result of reactive power consumption, a rotating magnetic current is formed in an asynchronous motor. and with the help of this current, the required amount of active power is transferred from the stator to the rotor. Therefore, there are negative effects of reactive power consumption. Power transmission capacity of additional loaded transformers and lines decreases Power and energy losses in electric networks increase during power delivery to consumers. In all cases, when using compensation devices, it is necessary to study the limits of the following technical and mode requirements: - the necessary power reserve at load nodes - placement of reactive power in the busbar of the resource - voltage deviation - the ability to carry electrical networks BEST SCIENTIFIC RESEARCH - 2022 65 In short, there is a technical disadvantage in the use of capacitor batteries for reactive power compensation. The use of capacitor batteries for compensation is especially widely used. It is strongly stated that their suitability for high and low voltages, small active power consumption (0.0025-0.005kW/kVar), the lowest comparative price (for 1kVar), simple operation; simple production assembly; suitability for installation in any dry buildings is their biggest advantage. However, high harmonics appearing in nonlinear loads have some technical disadvantages when using simple reactive power compensating devices in dividing networks. It is allowed to increase the overload current in the capacitor up to 30%, and the voltage up to 10%. In practice, the load current can reach 400%-500% due to resonance. REFERENCES: 1. Баламетов А.Б., Мусаханова Г.С., Халилов Э.Д. Исследование решения задачи оптимизации режимов электрических сетей по напряжению и реактивной мощности методом последовательной линеаризации и линейного программирования. Электричество. 2003. №3. 2. Бобожонов Ю., Хазратов И. Замонавий ва энерготежамкор тиристорли реактив қувват компенсаторларининг электр энергия исрофларини камайтиришдаги ва энергия ишлаб чиқаришдаги аҳамияти. Фан ва технологиялар Тараққиёти. Илмий – техникавий журнал, 2020. №6. 3. Бурков А.Т., Мирсаитов М.М.. Режимы электротяговой сети при эксплуатации электровозов ВЛ-80Р и УТЙ-1, Известия ПГУПС, 2016. №2. 4. "Sanoat korxonalarining elektr tarmoqlarida reaktiv quvvat kompensatsiyasini loyihalash bo'yicha ko'rsatmalar" Zhelezko Yu.S. |
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