STARTING PREDICTION CONTROL DEVICE FOR PLANT

Japanese Patent JP3723931

B2

PROBLEM TO BE SOLVED: To shorten a starting time of a plant by correcting a plant starting schedule sequentially according to the conditions of the plant without increasing calculation loads.
SOLUTION: A plant starting device, which is set so that a procedure A proceeds to a procedure B after executed for a controlled variable (a) to reach a controlled variable a0, comprises controlled variable simulating means 205 for simulating the output of a manipulated variable B' of the following procedure B at the stage that the procedure A is executed and the controlled variable (a) is not ascertained, plant simulating means 201 for predicting a future value for the controlled variable (a) in accordance with the manipulated variable B' and the controlled variable of the plant, starting procedure determining means 207 for determining how the future value for the controlled variable (a) is changed with the change of the manipulated variable B', starting condition determining means 203 for determining whether the future value for the controlled variable (a) reaches or not the controlled variable a0, and starting completion signal correcting means 206 for outputting an instruction to execute the procedure B when determining that the controlled variable a is changed toward the controlled variable a0 and the future value for the controlled variable (a) reaches the controlled variable a0.

Kotoku Katagiri
Akihiko Yamada
Toru Kimura

JP2002065703A

December 07, 2005

March 11, 2002

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株式会社日立製作所

F01D19/00; F01K13/02; G05B7/02; G05B13/04; (IPC1-7): F01K13/02; F01D19/00; G05B7/02; G05B13/04

JP8128305A
JP8303211A
JP8303210A
JP8128304A
JP10077805A
JP8260908A
JP5086807A
JP2181001A

Hirotsugu Yoshioka

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