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A method of single‐phase PWM for an independent power supply in photovoltaic power generation systems
Author(s) -
Nakae Tomohisa,
Kanamaru Yasunori,
Amemiya Yoshifumi
Publication year - 1998
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(199803)122:4<55::aid-eej7>3.0.co;2-r
Subject(s) - pulse width modulation , photovoltaic system , waveform , swing , power (physics) , voltage , electrical engineering , electronic engineering , engineering , computer science , physics , acoustics , quantum mechanics
We propose a method of single‐phase PWM for an independent power supply in photovoltaic power generation systems. This new PWM is derived by comparing levels of signal waves with one of carrier waves which have bipolar swing different from unipolar swing in the conventional PWM. In this PWM, we can use a battery with lower voltage in combination with the photovoltaic power generation; fundamental level of output voltage is raised by about 11%, though poor in quality of waveforms. © 1998 Scripta Technica. Electr Eng Jpn, 122(4): 55–62, 1998