| Underwater hydraulic shock shovel control system |
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| 作者姓名： | 刘贺平 罗阿妮 肖海燕 |
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| 作者单位： | College of Mechanical and Electrical Engineering Harbin Engineering University，Harbin 150001，China，College of Mechanical and Electrical Engineering，Harbin Engineering University，Harbin 150001，China，College of Mechanical and Electrical Engineering，Harbin Engineering University，Harbin 150001，China |
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| 基金项目： | 国家高技术研究发展计划(863计划)，哈尔滨工程大学校科研和教改项目，教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | The control system determines the effectiveness of an underwater hydraulic shock shovel. This paper begins by analyzing the working principles of these shovels and explains the importance of their control systems. A new type of control system’s mathematical model was built and analyzed according to those principles. Since the initial control system’s response time could not fulfill the design requirements, a PID controller was added to the control system. System response time was still slower than required, so a neural network was added to nonlinearly regulate the proportional element, integral element and derivative element coefficients of the PID controller. After these improvements to the control system, system parameters fulfilled the design requirements. The working performance of electrically-controlled parts such as the rapidly moving high speed switch valve is largely determined by the control system. Normal control methods generally can’t satisfy a shovel’s requirements, so advanced and normal control methods were combined to improve the control system, bringing good results.
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| 关 键 词： | 水压震动铲 控制系统 PID BP网络 |
Underwater hydraulic shock shovel control system |
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| He-ping Liu,A-ni Luo,Hai-yan Xiao.Underwater hydraulic shock shovel control system[J].Journal of Marine Science and Application,2008,7(2):139-142. |
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| Authors: | He-ping Liu A-ni Luo Hai-yan Xiao |
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| Institution: | College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | The control system determines the effectiveness of an underwater hydraulic shock shovel.This paper begins by analyzing the working principles of these shovels and explains the importance of their control systems.A new type of control system's mathematical model was built and analyzed according to those principles.Since the initial control system's response time could not fulfill the design requirements,a PID controller was added to the control system.System response time was still slower than required,so a neural network was added to nonlinearly regulate the proportional element,integral element and derivative element coefficients of the PID controller.After these improvements to the control system,system parameters fulfilled the design requirements.The working performance of electrically-controlled parts such as the rapidly moving high speed switch valve is largely determined by the control system. Normal control methods generally can't satisfy a shovel's requirements,so advanced and normal control methods were combined to improve the control system,bringing good results. |
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| Keywords: | hydraulic shock shovel control system PID BP network |
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