A Modified Quasi-Z-Source Inverter with Enhanced Performance Capability
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Int Journal Renewable Energy Research
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper proposes a modified single phase quasi-Z-source inverter (qZSI) with enhanced performance capability. The total harmonic distortion (THD) values of output voltage and current are reduced differently using the unipolar pulse width modulation (PWM) technique. In addition, the voltage gain ability of the circuit is improved with the help of an additional boost switch connected in parallel with the impedance network and power MOSFETs. The employment of the unipolar PWM technique adapted for the qZSI is explained and the operating principle of the proposed circuit with the additional boost switch is described using mathematical expressions. Simulations are carried out to show the effectiveness of the circuit for a determined modulation index using Matlab/Simulink environment. Compared with the classical qZSI topologies, the presented circuit has lower THD and increased voltage gain.
Açıklama
Anahtar Kelimeler
Unipolar Pwm, Thd Reduction, Boost Switch, Voltage Gain, Qzsi
Kaynak
International Journal Of Renewable Energy Research
WoS Q Değeri
Scopus Q Değeri
Cilt
10
Sayı
2
