The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2013
Filed:
Mar. 07, 2011
Ching-ming Lai, Taipei, TW;
Ching-tsai Pan, Taipei, TW;
Chih-hsing Fang, Taipei, TW;
Wen-wei Chan, Taipei, TW;
Ming-chieh Cheng, Taipei, TW;
Ching-Ming Lai, Taipei, TW;
Ching-Tsai Pan, Taipei, TW;
Chih-Hsing Fang, Taipei, TW;
Wen-Wei Chan, Taipei, TW;
Ming-Chieh Cheng, Taipei, TW;
Allis Electric Co., Ltd., Taipei, TW;
Abstract
A photovoltaic powered system and an alternating current (AC) module thereof are disclosed. The photovoltaic powered system provides a direct current (DC) power through a photovoltaic module and converts the DC power into an AC power, which is grid-connected to an AC utility power. The AC module of the photovoltaic powered system produces a continuous quasi-sinusoidal current and the quasi-sinusoidal current is converted into a sinusoidal current. The high-frequency harmonic components of the sinusoidal current are filtered to produce a sinusoidal output current in phase with the AC utility power, thus realizing the maximum power point tracking (MPPT) of the photovoltaic module and feeding unity-power-factor power into the AC utility power.