Lei Cheng

China University of Mining and Technology

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Yan Wang

Sichuan University

Jianliang Zhou

China University of Mining and Technology

Shujing Wang

Dalian Medical University

Zhu Zhang

Hunan University of Science and Technology

Xiang Li

China University of Mining and Technology

Gang Shen

China University of Mining and Technology

Yu Tang

China University of Mining and Technology

Zhuang De Jiang

Wuhan University of Technology

Xuehai Fu

China University of Mining and Technology

S. M. Zhu

China University of Mining and Technology

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China University of Mining and Technology

Hunan University of Science and Technology

Huazhong University of Science and Technology

Wuhan University of Science and Technology

Chinese Academy of Sciences

Sichuan University

Tsinghua University

Wuhan University of Technology

Shanghai University

Ministry of Education of the People's Republic of China

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Real-Time Force Tracking Control of an Electro-Hydraulic System Using a Novel Robust Adaptive Sliding Mode Controller

IEEE Access (2019)

Lei Cheng Zhencai Zhu Gang Shen Shujing Wang Xiang Li

This article focuses on a novel robust adaptive sliding mode control strategy of an electro-hydraulic force loading system with consideration of external disturbances and parameter uncertainties. To obtain the proposed controller, the nonlinear dynamic model of the electro-hydraulic force loading system is firstly provided, where external disturbances and system's uncertain parameters are merged. Then, with consideration of external disturbances and parameter uncertainties, a robust adaptive sliding mode controller for the force control system is proposed and designed according to Lyapunov stability theory. The proposed controller has the merit of suppressing chattering phenomenon in traditional adaptive backstepping controllers when designing sign functions. In order to verify effectiveness and feasibility of the proposed controller, experimental studies are implemented on an electro-hydraulic force loading system by xPC rapid prototyping technology. Experimental results demonstrate that the proposed controller exhibits more excellent performance on force tracking control in comparison of a traditional proportional-integral controller and an adaptive backstepping controller.

Lyapunov stability

10.1109/access.2019.2895595

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Citations (26)

Control for the Centrifugal Pump in the Simulation Platform of Power Plants

Xu Wang Di Wei Lei Cheng

Pumps are widely used in many fields such as industries or agriculture for its convenient power supply. The centrifugal pump, as one of the most common pumps, is getting more and more attention especially in power plants. It is mainly used to provide pressure for water cycling in the primary, secondary and other loops. In the primary water loop, the rotational speed of the pump is manipulated to change the pressure of the entire pipeline system, thus the flow rate could be adjusted to regulate the output power of the plant under certain conditions. In this paper, the mathematical model of the centrifugal pump is introduced. Also simulation models of the primary loop of thermal power stations are built in the Simulink environment. In the simulation, an electric heater is used to mimic the reactor or drum in the thermal power plant. A Fuzzy PID controller is designed to control the input speed of the pump. Numerical simulations show the efficiency and robustness of the proposed controller.

10.1109/iciicii.2016.0070

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An Equivalent-Input-Disturbance-Based Sliding Mode Control Approach for DC-DC Buck Converter System With Mismatched Disturbances

Zhuang De Jiang Lan Zhou Zhu Zhang Fuxi Jiang Lei Cheng

This paper presents an equivalent-input-disturbance (EID)-based sliding mode control (SMC) method for DC-DC converter system with both matched and mismatched disturbances. The SMC method restricts the states of the system to a designed sliding hyperplane and can easily reject matched disturbances, while the EID approach has two-degree-of-freedom control structure and can reject both the matched and mismatched disturbances. Since the SMC method and EID approach reject disturbances with different mechanisms and neither of them can reject disturbances completely, they are applied jointly without conflict to the design of DC-DC converter system, and thus to improve the disturbance rejection performance of the system. Design procedure for the system is provided. Simulation results explain the design procedure of the system and demonstrate the validity of the method.

Buck converter

Hyperplane

Mode (computer interface)

10.23919/chicc.2019.8865812

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IoT UAV Control Based on DIC-PID in Water Quality Measurement Application

Lei Yan Yang Chen Kangyi Pan Huaiyu Wu Lei Cheng

Due to the low efficiency of the current measurement of water quality, we designed a hexacopter that can automatically measure water quality. The dynamic model of hexacopter is derived using Newton-Eulerian's law. In order to ensure the stability of the drone when hovering over the surface of the water, dynamic inversion control (DIC) based on nonlinear feedback is proposed to control the attitude of the UAV. To further reduce the long settling time and overshoot of the controller, an error compensator based on proportional integral derivative (PID) is introduced in the control system. Simulation result shows the good performance of the proposed DIC-PID algorithm comparing to the system without error compensated controller. The designed water quality measurement system can sample and analyze the water quality in real time. Details of the water quality measurement system are presented to verify the high-efficiency of the designed UAV.

Overshoot (microwave communication)

Settling time

10.23919/chicc.2019.8866432

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Citations (5)

Research on a BIM Model Quality Compliance Checking Method Based on a Knowledge Graph

Journal of Computing in Civil Engineering (2024)

S. M. Zhu Jianliang Zhou Lei Cheng Xuehai Fu Yan Wang

Building Information Modeling

10.1061/jccee5.cpeng-5950

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Motion control of mbile robots based on the fuzzy control algorithm with motion trend analysis in self-adjusting universe

Mechanical & Electrical Engineering Magazine (2008)

Lei Cheng

In view of the motion control problem in nonholonomic wheeled mobile robots,the requirements of accuracy,timeliness and auto-adapted request of the robot motion control system were considered comprehensively,and a newly fuzzy control algorithm with self-adjusting universe based on the motion trend analysis was proposed.The position deviation and velocity deviation were input,while the duty ration of PWM wave was output.The accuracy property was enhanced by real timely changing the universe of the input and output.The motion trend of robots was analyzed,and the auto-adapted property was improved by real timely changing the fuzzy rules.Simulation and experiments results indicate that the method has some advantages of both easily and effectively in meeting the requirements of the robot motion control system.

Nonholonomic system

Position (finance)

Source

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