Using PID Cascade Regulation to Achieve Surge Protection of Nitrogen Compressor
Author(s): Wu Xiao, Electromechanical Instrument Center, Sinpoec-SK Petrochecal Company Limitro
Pages: 192-193
Year: 2015 Issue: 15
Journal: Guangdong Chemical Industry
Keyword: centrifugal compressor; surge protection; PID regulation; cascade control;
Abstract: The article discusses the principle and harm of surge of the centrifugal compressor. And how to use simple PID loops to form a cascade loop, and addd the calculating formula of surge protection curve between the two PID loops. Using the calculation results to minus the surge margin value as the set value of the main loop. In order to achieve surge protection of the nitrogen compressor.
Pages: 192-193
Year: 2015 Issue: 15
Journal: Guangdong Chemical Industry
Keyword: centrifugal compressor; surge protection; PID regulation; cascade control;
Abstract: The article discusses the principle and harm of surge of the centrifugal compressor. And how to use simple PID loops to form a cascade loop, and addd the calculating formula of surge protection curve between the two PID loops. Using the calculation results to minus the surge margin value as the set value of the main loop. In order to achieve surge protection of the nitrogen compressor.
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