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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: During the operation of reciprocating compressor, if the actuator in its air volume regulation system fails, it may affect the working efficiency of the compressor and even lead to serious problems. Therefore, a multiactuator gas flow regulation model was constructed, and a self-healing regulation algorithm was proposed to effectively deal with the influence of actuator failure on system performance and reliability. Firstly, a multi valve co-flow mechanism model for coupled actuator failure faults in compressors was established, and the influence of different actuator failure modes on the thermodynamic performance of compressor was revealed, such as discharge capacity, energy consumption, power, which provided basic data for subsequent research on self-healing control. Then, a self-healing control algorithm for actuator failure faults based on fault actuator isolation load redistribution reflux valve flow adjustment was proposed. The goal of system self-healing was realized by evaluating the deterioration degree of the fault and starting the control strategy accordingly. Finally, the experimental platform was built, and the actuator failure experiment and fault self-healing regulation experiment were respectively carried out to verify the rapidity and stability of self-healing regulation. The research results indicate that the degree of fault degradation in the air volume regulation system is related to the actuator fault mode and system operating parameters. If the number of failed actuators increases, the degree of fault degradation also increase. If the operating load of the system decreases, the degree of fault degradation also increases accordingly. Based on this, the degradation degree range of compressor faults can be divided. By activating the self-healing regulation algorithm, the development of faults is successfully suppressed. The fluctuation of exhaust volume under mild and moderate degradation fault conditions is respectively adjusted to the allowable range within 8 s and 13 s, achieving the goal of quickly restoring the fault state to normal state, thus meeting the requirements of industrial production. This study provides an effective solution for the stability and reliability of the air volume control system of reciprocating compressors.
Key words: reciprocating compressor; multi-actuator air volume regulation model; evaluation of fault deterioration degree; control strategy; actuator failure fault mode; degree of fault deterioration; fault selfhealing regulation
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- Chinese Core Periodicals
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- Chinese Sci-tech Core Periodicals
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- SA, INSPEC Indexed
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- CSA: T Indexed
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- UPD:Indexed
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2010 Zhejiang Information Institute of Mechinery Industry
Technical Support：Hangzhou Bory science and technology
