Abstract
The urgency and necessity of choosing and justifying the structures of hybrid filter-compensating devices based on series and parallel active filters to improve the quality of electricity in the power supply systems of enterprises of the mineral resource complex is shown. Mathematical models of hybrid filter compensating devices based on parallel and series active filters have been developed. Based on these mathematical models, computer simulation models of the indicated hybrid structures have been developed. The results of simulation showed the effectiveness of the correction of power quality indicators in terms of reducing the level of higher harmonics of current and voltage, as well as voltage deviations. The degree of influence of filter-compensating devices on the power quality indicators, which determine the continuity and stability of the technological process at the enterprises of the mineral resource complex, have been revealed. It has been established that a hybrid filter-compensating device based on a parallel active filter can reduce the level of higher harmonics of current and voltage by more than 90 and 70 %, respectively, and based on a series active filter, it can reduce the level of higher harmonics of voltage by more than 80 %. Based on the simulation results, the possibility of compensating for the reactive power of a hybrid structure based on parallel active and passive filters has been revealed. The possibility of integrating hybrid filter-compensating devices into more complex multifunctional electrical systems for the automated improvement of the quality of electricity is substantiated, as well as the expediency and prospects of their use in combined power supply systems based on the parallel operation of centralized and autonomous sources of distributed generation.
Highlights
позволяют компенсировать полный спектр высших гармоник от 2 до 40 порядка и возможностью интеграции в системы автоматизированного повышения качества электроэнергии. Однако существенным недостатком таких средств является дороговизна и невозможность их применения в сетях с конденсаторными установками коррекции коэффициента мощности из-за наличия резонансных явлений
Гибридное фильтрокомпенсирующие устройства (ФКУ) на базе параллельного активного фильтра способно приблизить коэффициент мощности сети к 1, снизить уровень искажений тока в десять раз, а искажений напряжения – в четыре раза
Summary
Гибридная на основе параллельного активного и пассивного фильтров для обеспечения компенсации высших гармонических составляющих (ВГС) по току со стороны нелинейной нагрузки и отклонений напряжения со стороны питающей сети (гибридное ФКУ No 1); Гибридная на основе последовательного активного и пассивного фильтров для обеспечения компенсации ВГС и провалов по напряжению со стороны источника и высших гармоник тока со стороны нелинейной нагрузки (гибридное ФКУ No 2).
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
