CONTROL DEVICE FOR WASTE HEAT RECOVERY SYSTEM

Title:

CONTROL DEVICE FOR WASTE HEAT RECOVERY SYSTEM

Document Type and Number:

WIPO Patent Application WO/2010/074173

Kind Code:

A1

Abstract:

Disclosed is a control device for a waste heat recovery system which enables improvement in the responsiveness of the output control for a power turbine and a steam turbine with respect to sudden changes in the inboard load. The control device for a waste heat recovery system is equipped with: a power turbine that provides drive using engine exhaust gas and a steam turbine that provides drive using steam generated with an engine exhaust gas economizer; and is equipped with a power turbine control means which controls the output of the power turbine and a steam turbine control means which controls the output of the steam turbine, and both of which drive an electrical generator by means of the power turbine and the steam turbine. The power turbine control means is equipped with: a power turbine feedback control means which calculates a control valve operation amount based on the deviation between a power turbine target value and the actual power turbine output; and a power turbine feed-forward control means which extracts a control valve operation amount from a power turbine degree-of-opening command map wherein the relationship between the engine load, the power turbine output target value calculated from the engine load, and the control valve operation amount has been preset. The power turbine control means sets the degree of opening of the control valve by adding the operation amount from the feed-forward control means and the operation amount from the feedback control means.

Inventors:

SAKAGUCHI YUSUKE (JP)
ICHIKI YOSHIHIRO (JP)
KANABOSHI TAKAYUKI (JP)
OHTA YUJI (JP)
KAGIMOTO YOSHIMI (JP)

Application Number:

PCT/JP2009/071486

Publication Date:

July 01, 2010

Filing Date:

December 24, 2009

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
SAKAGUCHI YUSUKE (JP)
ICHIKI YOSHIHIRO (JP)
KANABOSHI TAKAYUKI (JP)
OHTA YUJI (JP)
KAGIMOTO YOSHIMI (JP)

International Classes:

F02B41/10; B63H21/14; B63J3/02; F01K23/02; F02G5/02

Foreign References:

JPH03164526A	1991-07-16
JP2007001339A	2007-01-11
JP3804693B2	2006-08-02
JP2007001339A	2007-01-11
JP3804693B2	2006-08-02

Other References: