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:
Apr. 08, 2003
Filed:
Mar. 13, 2001
Isolated operation prevention device for distributed power supply and interharmonic detection method
Shoji Nishimura, Kyoto, JP;
Yoshifumi Minowa, Kyoto, JP;
Masakuni Asano, Kyoto, JP;
Noriaki Tokuda, Kyoto, JP;
Tokuo Emura, Kyoto, JP;
Yoshihiro Hada, Kyoto, JP;
Nissin Electric Co., Ltd., Kyoto, JP;
Abstract
A power fluctuation monitoring unit which monitors and detects the power fluctuation at a receiving point by means of the measurement results of the voltage at injection point of an intermediate-order harmonic current and the current at incoming line 10, a power compensation unit which forms the compensation power injection signal for canceling out the power fluctuation based on the detection results of the power fluctuation, and an inverter device which is driven and controlled by the signal resulting from the addition of the intermediate-order harmonic current injection signal and the compensation power injection signal and injects the intermediate-order harmonic current and the compensation power into the injection point, are equipped.