Selective Harmonic Elimination in a Wide Modulation Range Using Modified Newton–Raphson and Pattern Generation Methods for a Multilevel Inverter
نویسندگان
چکیده
منابع مشابه
Selective Harmonic Elimination with Reduced Switch Topology in Multilevel Inverter
A generalized formulation of Selective Harmonic Elimination (SHE) PWM for Multilevel Inverter is recently formulated in literature which can eliminate a large number of lower order harmonics. Various methods for calculating the firing angles for SHE PWM are known and still research in this area is ongoing. This paper presents a MATLAB based approach for modeling and simulation method suitable f...
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The Selective Harmonic Elimination (SHE) technique is the fundamental switching frequency scheme which is used to eliminate specific order harmonics. In this paper, the elimination of low order harmonics in cascaded multilevel inverter with equal DC sources is proposed. The modulation strategy used here is SHEPWM in which non linear equations that characterize the low order harmonics are obtain...
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Uninterruptible power supplies (UPSs) are emergency power sources which have wide spread application in critical equipments, such as computers, automated process controllers, and hospital instruments. With the rapid growth in the use of high-efficiency power converters, more and more electrical loads are nonlinear and generate harmonics. It is a big challenge for a UPS to maintain a high-qualit...
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An input-series output-parallel (ISOP) system, in which multiple converter modules are connected in series at the input sides and parallel at the output side, is very suitable for high input-voltage, low output-voltage, and high output-current applications. Input-voltage sharing (IVS) and output-current sharing of the constituent modules among the ISOP system must be ensured. The existing IVS c...
متن کاملImplementation of Algebraic Method Based Selective Harmonic Elimination of Multilevel Inverter Using Artificial Neural Networks
Selective harmonics elimination (SHE) is one of the prominent technique that is used to produce required fundamental voltage of multilevel inverters with elimination of selective harmonic orders. The SHE equations are nonlinear equations and are also termed transcendental equations owing to the fact that these equations contain trigonometric terms. Attempt has been made in previous works to sol...
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ژورنال
عنوان ژورنال: Energies
سال: 2018
ISSN: 1996-1073
DOI: 10.3390/en11020458