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:
Nov. 19, 2019
Filed:
Jul. 31, 2014
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Abstract
A control device () that controls a fuel gas supply system () that comprises: a compressor () that supplies compressed fuel gas to a load apparatus (); an inflow amount regulating means () that regulates the amount of fuel gas that flows into the compressor (); and an anti-surge valve () that is for returning to an inlet side of the compressor () fuel gas that is discharged from the compressor (). The control device () comprises: a main pressure-control unit () that controls the inflow amount regulating means () and the anti-surge valve () on the basis of a feedforward control value that is generated on the basis of the load of the load apparatus () and of a prescribed conversion process, and on the basis of a feedback control value that is generated on the basis of the deviation between a set value and a measured value for the discharge pressure of the compressor (); and an emergency pressure-control unit () that calculates a bias-added control value that is found by adding a predetermined bias value to an anti-surge valve control value that is for controlling the anti-surge valve () and that is calculated on the basis of at least one of the feedforward control value and the feedback control value, and that, on the basis of the occurrence of load variations that are at or above a prescribed value, switches between the anti-surge control value and the bias-added control value and controls the anti-surge valve ().