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:
Mar. 04, 2008
Filed:
Sep. 10, 2003
Jonathan Ralph Manchester, Rookswood, Rowlands, Gill NE39 2JQ, GB;
Jonathan Ralph Manchester, Rookswood, Rowlands, Gill NE39 2JQ, GB;
Other;
Abstract
A tidally driven electricity generator () has a series of turbines (), each of which is mounted under water in an offshore location. Each turbine () has blades () which are rotated by tidal flow of water, to power a respective generator (), which outputs AC electrical power via a respective transformer () to a cable () and appropriate switchgear (). The cable () is connected to a further transformer () located onshore, and the transformer () is connected to two AC inputs of a drive () containing an AC/DC converter, one input () of which is connected via a cable to a control feedback device (). The control feedback device () may be a flow meter which determines the velocity of the tidal flow, or may contain look-up tables containing information relating to the velocity of tidal flow at any particular time. The drive () outputs DC electrical signals along cabling () to DC/AC converter (), which outputs AC electrical powervia transformer () to a fixed frequency local supply grid (). The drive () also controls the speed of rotation of each turbine () by adjustment of the frequency of signals output to the turbines from the drive () via switchgear ().