ZUO Duquan, QIAN Lixia, YANG Tianen, CUI Xiaojin, LUO Qiang. Coupling Leveling Control Based on Fuzzy PID for Synchronous Loading System of Load-Bearing Test Bed[J]. Chinese Journal of Electronics, 2017, 26(6): 1206-1212. doi: 10.1049/cje.2017.07.016
Citation: ZUO Duquan, QIAN Lixia, YANG Tianen, CUI Xiaojin, LUO Qiang. Coupling Leveling Control Based on Fuzzy PID for Synchronous Loading System of Load-Bearing Test Bed[J]. Chinese Journal of Electronics, 2017, 26(6): 1206-1212. doi: 10.1049/cje.2017.07.016

Coupling Leveling Control Based on Fuzzy PID for Synchronous Loading System of Load-Bearing Test Bed

doi: 10.1049/cje.2017.07.016
Funds:  This work is supported by the Scientific and Technological Research Program of Chongqing Municipal Education Commission (No.0983503), and the Research Project of Bate (Hangzhou) Industrial Machinery Co., Ltd. of China (No.0983501).
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  • Corresponding author: QIAN Lixia (corresponding author) is an associate professor of Chongqing Three Gorges University, China. Her research interests include hydraulic control and computational intelligence. (Email:969566460@qq.com)
  • Received Date: 2016-12-14
  • Rev Recd Date: 2017-05-03
  • Publish Date: 2017-11-10
  • This paper describes a 4-cylinder hydraulic circuit system controlled by a new cross-coupled fuzzy PID, and its leveling algorithm is designed to meet the demand of the loading system for test bed. In order to enable synchronous loading and implement precise leveling control, the output displacement derived from a theoretical model, called Żn, is tracked in real-time. Using AMEsim software, the reliability of the scheme designed by master-slave control and fuzzy PID cross coupling control have been confirmed, and have drawn a conclusion that the more serious the inconsistencies of the load for 4-cylinder are, the more size corresponding synchronization errors will be. Further, leveling experiments have demonstrated that the synchronization performance of leveling system can be improved significantly by adjusting the load values for the 4-cylinder so as to meet the demand of its un-synchronization.
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