To ensure uninterrupted power supply to expensive sophisticated equipment and measuring instruments, enterprises use backup power supplies. Typically, such sources can be rechargeable batteries, the direct voltage from which is converted into alternating (AC) voltage using an inverter. However, such sources cannot provide high quality AC output voltage. This is due to the fact that the resulting voltage waveform differs from the sinusoidal one; as a result, the voltage contains a large number of harmonics, which affects the quality of operation of the equipment in the enterprise. In this work, a device for obtaining high-quality sinusoidal AC voltage from an AC voltage of arbitrary shape is proposed. The schematic circuit diagram of the device has been developed. Its simulation and study were carried out. The developed operating algorithm of the device is provided. A model of device is created in accordance with developed algorithm and its simulation in Micro-Cap 12 is carried out. It was demonstrated that the developed device makes it possible to obtain at its output the AC voltage with waveform maximally close to sinusoidal and with distortions not exceeding 3 %.
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Key words:
microcontroller, inverter, switch, transistor, rectifier, filter, control system, power section
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Published in:
INTEGRATED RADIOELECTRONIC DEVICES
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Bibliography link:
Maslakov M. P., Lykov O. V. Development of a device for obtaining high-quality sinusoidal alternating voltage. Proc. Univ. Electronics, 2024, vol. 29, no. 4, pp. 525–538. https://doi.org/10.24151/1561-5405-2024-29-4-525-538
Maxim P. Maslakov
North Caucasian Institute of Mining and Metallurgy (State Technological University) (Russia, 362021, Republic of North Ossetia – Alania, Vladikavkaz, Nikolaev st., 44)
Oleg V. Lykov
North Caucasian Institute of Mining and Metallurgy (State Technological University) (Russia, 362021, Republic of North Ossetia – Alania, Vladikavkaz, Nikolaev st., 44)
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