Compressor control device, compressor control system, and compressor control method
AssigneeMitsubishi Heavy Industries Compressor Corporation
InventorsYosuke Nakagawa, Naoto Yonemura, Kazuhiro Jahami
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Abstract
With regard to a load running system that comprises a plurality of compressors that compress a fuel gas and supply the compressed fuel gas to a load apparatus, this compressor control device comprises: a feedforward control signal generation unit that, on the basis of a value that is found by dividing the total load of the load apparatus by the number of running compressors, generates a first control signal that is for controlling the amount of fuel gas supplied by the compressors; and a control unit that, on the basis of the first control signal, controls the amount of fuel gas supplied by the compressors.
Claims14
A load running system comprising:
- a plurality of compressors which compress a fuel gas and supply the compressed fuel gas to a load apparatus,
- a compressor control device comprising:
- a feedforward control signal generation unit which is configured to generate a first control signal which controls an amount of the fuel gas supplied by the compressors, on the basis of a value which is obtained by dividing a total load of the load apparatus by a number of running compressors of the plurality of compressors;
- a feedback control signal generation unit which is configured to perform a feedback control, on the basis of a deviation between a target value and a measured value of a header pressure of the fuel gas, and generate a second control signal;
- and
- a control unit which is configured to control the amount of the fuel gas supplied by the plurality of compressors, on the basis of the first control signal or a value obtained by adding the second control signal to the first control signal;
- wherein, the compressor control device is configured to control the supply amount of the fuel gas to some or all of the plurality of compressors among the plurality of compressors, on the basis of the value obtained by adding the second control signal to the first control signal, and the compressor control device is configured to control the supply amount of the fuel gas to the remaining compressors, on the basis of only the first control signal.
A method of controlling a compressor control device in a load running system including a plurality of compressors which compress a fuel gas and supply the compressed fuel gas to a load apparatus, comprising:
- generating a first control signal which controls an amount of the fuel gas supplied by the plurality of compressors, on the basis of a value which is obtained by dividing a total load of the load apparatus by the number of running compressors of the plurality of compressors;
- performing a feedback control, on the basis of a deviation between a target value and a measured value of a header pressure of the fuel gas, and generate a second control signal;
- and
- controlling the supply amount of the fuel gas to some or all of the plurality of compressors among the plurality of compressors, on the basis of a value obtained by adding the second control signal to the first control signal, and controlling the supply amount of the fuel gas to the remaining compressors, on the basis of only the first control signal.
Dependencies are inferred from the claim text.