A method of single-phase PWM for an independent power supply in photovoltaic power generation systems

✍ Scribed by Tomohisa Nakae; Yasunori Kanamaru; Yoshifumi Amemiya

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 927 KB
• Volume: 122
• Category: Article
• ISSN: 0424-7760
• DOI: 10.1002/(sici)1520-6416(199803)122:4<55::aid-eej7>3.0.co;2-r

✦ Synopsis

SUMMARY
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. (C) 1998 Scripta Technica. Electr Eng Jpn, 122(4): 55-62, 1998